Well I want to thank Mike too. This is amazing. I mean I didn't know this guy knew anything at all. Look what he put together. This thing is crazy. Thank you. Thank you. One of my pet peeves with Apple right now is that I refer to the Apple Store as the Apple Showcase because you can't buy anything in the store anymore. So Don McAllister was nice enough to loan me the dongle so that I could plug in an external mic. And it doesn't work. But the mono price one is working just fine. He still gets credit for loaning it to me. We'll see if I give it back to him. But yeah it wouldn't project. So you can't buy the dongle in store and when you get it it doesn't work. So that's great. My name is Allison Sheridan and as they said I do the NoSyllicast Mac podcast hosted at podfeat.com. This is my lovely website. Notice the Mac stock advertising I have going there. And I was just hoping to bring up. I did a actually I don't know if my oh there it is. I did a thing that ties right into what Guy and Gaz were talking about. I made a QFD a quality function deployment that allows you to figure out which kind of Mac you should buy. In this case I only did the MacBook, the MacBook Air and the MacBook Pro. And I did it because my husband and our friend Ron and I all bought new Macs at the same time. They were all our secondary Macs and all three of us bought different Macs. I'm noticing that if I talk to this mic it wrecks this mic. So I'm going to stay over here Steve. We're trying to get as much recording as we can. Anyway this is a really cool tool that lets you put in how important how important a certain criteria is to you and it calculates out for you. Like if you care about a retina screen you give it a nine. You have to give it a one three or nine. There's a whole explanation. There's a video on it. But let's say weight is not that important. Speed is kind of important. You can see that the numbers are calculating down at the bottom. It's real nerdy and it's spreadsheet-y. I think you guys like that. So I named my show the you know Cellicast Mac podcast so I could talk about actually it doesn't technically always say Mac in there. But I named it so that people couldn't say I was off topic. So you really as much as those boys get off topic I can get off topic too. So I did a thing on a hot water recirculation pump last week that was really a great piece. So anyway I'm not here to talk about that though but I just wanted to plug my own show for a few minutes. Let me hide that for the moment and we're going to hide that one. Oh I didn't mean to close it. I just did. Oh well we'll come back to that. So what's that? Command Z to reopen a window? Really? No way. Whoa I had no could do that. Alright so what did we say we're supposed to learn something at every of every time right? So I've done my one. Alright so I'm here to talk about a new application called Audio Hijack from Rogue Amoeba. Has anybody here used Audio Hijack Pro before? And how about older versions of Audio Hijack? Alright and how many people are using the new one? Audio Hijack 3.   That's good. So Audio Hijack Pro was a great application for piping audio to different things and I'll walk you through how it works but it was really kind of complicated and janky to use. Once I got it set up to do what I wanted it to do I never touched it again because I was afraid I would wreck it. The new Audio Hijack 3 and correct me if I say pro because they took the pro word off of it is very very intuitive it's visual it's drag and drop it's really really easy to use and before I forget I just said it was visual it's also completely accessible to the blind which is a really really tricky thing to do and these guys simply built it into the product up front so they didn't have to do there's not like you know band-aids on top to make it accessible it's accessible up front and I was blown away. I tested it and I thought well this isn't going to be accessible but somebody's going to ask me and I tested it I was like oh my gosh you can use it without being able to see so that's pretty cool if you have ever used any version let's see does this work if I do that does that embiggen it for you yeah you'll notice it says that if you own any other version one two three whatever old non non pro whatever you own it's only 25 bucks so scrape out that old license key if you've got one if not it's 50 bucks it's got a free download and you can anything longer than 10 minutes recording it'll have a watermark on it an audio watermark so you can you can play with it and try it out all right I am going to not close just hide that all right so let's talk about what audio hijack is there for the kinds of I like to start with the problem to be solved and the kinds of problems it can solve is you don't want a big old mixer piping audio around I don't I had a mixer and I had Victor Kahiaw taught me how to use it and I never understood it and it got I was always afraid if the housekeeper dusted I wouldn't have I wouldn't know how to put the settings back even I took a picture after Victor helped me and it was really complicated so I ended up getting rid of the mixer and I use audio hijack for everything that I do for everything all the audio on my podcast and so it's it's to record audio but it's not just for podcasters if you have say an internet radio show that you would like to record and one of the examples I'm going to show is the the keynote from WWDC let's say you wanted to capture that audio and save it and listen to it on your commute to work the next day because it was the middle of the night because you're from the Netherlands right that would have been a nice thing to have you can do that you can use it to record audio off of DVDs off of records and they remember what records are I'm not going to get into how to do that because that's a little more complicated with the physical setup but it's it's that's another thing you can do with it so I'm going to walk you through a couple of these sessions that you can set up and you'll see how it works and the nice thing about the software is it's so easy to play with you can experiment and I'm starting to do more and more with it because I'm like oh wait a minute I bet I could do that with audio hijack let me try to drag some of these things in and do it all right from the from the top here we've got sessions recording and schedule and uh under sessions we have nothing right now this is just saying push that button so I'm going to push new session and you're going to see the template chooser and this has got a bunch of built-in templates and I'm going to back into those but we're going to start with a new blank session I'll just show you how easy it is to work with so I'm going to double tap that yeah let's put this up here actually that's on this little screen might be good to go full screen no that scares me I'll just begin it a little bit here um in order to use audio hijack you need two things as a minimum you can add lots more than two things but you need an input and an output makes perfect sense right so up here we've got our sources and those are your inputs and these are your outputs you got two different kinds of outputs below that you're going to see that you have built-in effects and these are all audio effects that that rogue amoeba has created and these guys really know their audio I'm not going to go through all of these but we may play with one or two as we go through but you see de hum de noise equalizers a whole lot of different special effects that you can you can add to your workflow but you don't have to below that you'll see it has audio unit effects and this is for people like Dave Hamilton that understand what these things are I don't know any of this stuff is I think I've actually played with some of it but it was in the old audio hijack and it terrified me so I just stopped doing it and then finally down at the bottom below all of those let me let me fold that back up below all of those you also have meters and these are visual representations as you would have the little red lights on a mixer these are visual represent it's representations of how high you're a hot your audio is so we'll probably play with one of those at some point those are fun all right let's play with something so here's an example I'm going to put an application out here oh one thing I wanted to say audio hijack has the simplest install you will ever find you hit download and you take the application drag it into into your applications folder and it doesn't go sprinkle stuff all over your your mac it's just Dave's looking like that it there's no installer or anything until you need two different things and I'll walk through I'll show you where these happen if you want to do a scheduled recording like I mentioned audio hijack if you want to schedule that there's the schedule helper and then the other one is called instant on and this happens all the time you fire up Skype you're all ready to do a recording and you hit audio hijack and and it has to it has to quit Skype and bring it turn it back on so it has to be the one to launch it if you allow it to install instant on then you could do it right from within Skype you could just go boom I'm already I'm already in the call we always forget most of us anyway forget to turn it on first so instant on is really useful so anyway I've dropped one of these bricks onto the onto the session template here and I've got application and I just simply click on it and from there I can choose what application I want to record so let's say I'm going to record let's just record Safari for now and I chose application on purpose I can also choose microphone and we'll we'll look at that but let's say I want to record Safari and then I need an output so I can simply drag this here and now it's going to simply go to the headphone jack which we'll see whether my Mac will do it when my Macs didn't get how I did that it was really cute when so let's let's bring up Safari and bring that back up where you see if we can get some audio playing from the Apple keynote and let's see if we can hear that actually this is working right I should so down here is a is a record button if you will and it's it's looks like record but it really means you're you're saying go to the workflow you're just making it go so now when I hit this if it's actually going to be actually you know let me change this to a recorder instead of headphones since we've got it coming out here I'm if I click on that I can change the output to wait a minute no sorry let me get rid of the I'm going to get rid of this output I did a command delete instead I'm going to make a recorder you see that little line that's going between the two that's is that bright enough can you see that it that's going to show us the flow of the audio and I'm just going to leave it it's a standard recorder and actually it is still it started to record right now I'm going to go ahead and hit play here and now you see the audio waveform is going across to the recorder now you don't hear it because I just pipe the audio out to the recorder I'm going to hit stop and now it came back to the head to the headphone jack all right let's take a look at the recorder and see what I just did if I click on that it defaults to high quality mp3 but I can click right here and I can choose a lot of different options I can go to an AAC a uncompressed Apple lossless and AIFF that tends to be what I like to choose you can set tags in here one of my favorite things is you can change the the name of the file as it comes out so right now it says date time recording let's just get rid of that let's say we want to call this max stock and we're going to over here we can click on this and we can add the the year the month and the day and now I've every every recording I make will have that appended on it so that's kind of nice you can set those up once you have something set up like this like a recorder in this case that you want that I'm going to change this to an uncompressed AIFF with max stock year month day I can create a preset for that and if I save that so we'll call that max stock do I spell it right yeah so I've got that preset anytime I create a recording nothing to do with this session I just set up a new recording session I can just grab that preset and it's all ready to go so it makes your workflow really smooth go ahead and stop that for a second and then now I just created a recording by hitting that record button and I recorded that couple seconds of applause if I go down here I can hit recordings and I can play that back I can play it right from there I can also go to actions and I can reveal and find her open and editor add to iTunes a lot of different choices here but there's our little mp3 file and well I guess on this Mac I have it set to open iTunes don't I so you see how I created that and how it dropped right in there by the way I know this stuff cold so if you want to interrupt me with questions it's not going to like woo throw me off my game so if I say something that's confusing or you want me to repeat something holler out except for Dave no okay I thought you put your hand up all right so so now we've got sessions this is that session I just created this new blank session we can change the name of that to just recorder and now I've changed when I close this back down this is my set of sessions I'm going to create so I have one of these for when I do my set one of the segments on my show is called chitchat across the pond I have one called CC ATP I have another one called my live show I do my show live on Sunday nights and I've got a really complicated setup that's also saved as a session in here I'm going too fast too slow but right all right I got one of these one of those okay good all right so that was actually let's open this back up and start messing it up you might want to be able to do that recording but you notice we couldn't hear it while we were doing the recording turns out you can add more than one output device so I'm going to put this actually I could do it after I could do it hang on let me see if I kind of jump around maybe it wants to be after there we go you see how those little lines were jumping around you just kind of drag it until it represents what you want to what you want to hear I can now hit this recorder again and when I hit play over here you can hear it and it's making the recording at the same time so sometimes you want to monitor what you're doing so you can start adding these blocks and doing more things to them so we'll go in here and let's oh let's throw what would be fun well like a equalizer in there when you tap on that then people understand how to use equalizers would drag those little dials up and down the Dave Hampton's of the world and I don't understand this stuff actually Don said he's going to teach me how to play with the equalizer later so that'll be fun there's there's presets within the equalizer so if you don't want to learn how to do it you've got a lot of different options here I think we want dance as our equalizer set up keep you guys keep you guys awake anyway so you get in kind of the feel of how you can drag and drop these things and let's say you're just like I don't understand that equalizer let me just hit a command delete and it's gone so you can drag and drop these things play with them experiment with them really really quickly and get a feel for how this is going to work a lot of times you put it together and they're in sound anywhere okay I'll just start over and make a new one at least that's the way I work with this all right let's take a look let's see well we just did an application but we could we could do this with the input an input device that's a hardware device and let me get rid of safari and what we can do here is when I click on this this is this is looking for a hardware device this is my internal microphone so I've got the built-in mic the reason I was trying to use this one was because we were trying to use a USB mic so I could demonstrate changing mics but you can see I've pretty much got the built-in microphone uh do you guys know what sound flower is what's its status sound flower was bought by rogue amoeba yeah okay well it's it's still there you can still download it it's pretty clear that what they did was they scooped it under its wing from what was it was cycle 43 or something like that cycle somebody anyway they they swept it under the wing but I don't think they've touched the one that's on the website yet because when I went to install it it said it was an unsigned developer so I wrote to him and they said ah yeah we should probably fix that night oh I think the security certificate had expired too uh Dave do you know what the is there any uh public knowledge of what the status is okay the future is what he can't say yeah oh I didn't see bait in it oh okay I just did it yesterday to get it ready for this um I'm probably going to do a bad job of describing what sound flower is and I actually would like to be corrected here but sound flower is a way of combining some physical devices uh and and other audio devices uh into a single channel that then you can use as an input for something else so when I'm doing my live show um I am recording into garageband with my microphone but I'm also sending my voice and garageband both into a live google hangout on air well I need one microphone well I've got I've got two sources what do I do I pipe them into sound flower so you simply install sound flower and it magically becomes a source here and did I botch that up too badly missing okay it is I'm going to repeat for the uh for the video but it's a both an input and output is what Dave was saying so um in this case I let it go to sleep uh one of the things I could do is instead of sending the output here to uh headphones excuse me I could send it to sound flower two channel and then when I launched the auto the the google hangout on air when it go to pick my microphone I picked my microphone as being sound flower does that make sense it's a little weird but you just do it and it works so that's how I'm happy with it excuse me I would like to thank Barry Folt for taking to us up to dinner last night to a place where we had a scream to talk to each other so that was great my voice was fine before today before yesterday I should say all right uh another thing you can do is system audio and I'll just drag that in and show that that can be an input device and uh one of my favorite uses of this it was um uh Mary Ann Gary had some weird noise coming out of her mac and I don't know if she used audio hijack but that's something you do where you want to send it to the mac geek and say what is that noise what is that you can record system audio noise I used uh audio hijack pro in the old days uh you remember cds well well you remembered records so you remember lp so you got to remember cds we got a cd that said free digital download well like wow we'll get one more song that'll be really cool and we plugged it in and it said yeah that's only for windows well I fixed their little red wagon I launched a vm with windows turned on audio hijack pro stole the audio right off of it it was a pure digital recording just from playing it on that website playing it inside windows inside a vm inside using audio hijack so you may not think you need it right now but you're going to one day you'll be doing something called hi i bet audio hijack could do that and then you'll try it and you'll say whoo thank you allison it's exactly that's exactly how that's going to happen you're practicing it thanks all right let's take a look at so I kind of just played around with a few of these but let's take a look at what happens when you do new session and uh just look at these actually let me pop that down the way Don McAllister would say let me just pop that down uh in the template chooser you've got a bunch of different options here and we'll we'll just walk through each one application audio this is showing you an example of starting with uh this is kind of what I already showed you but this is starts with itunes it's got the recorder and then it's going out to the headphones so they give you some of these to start with and I really encourage you to try each one of those and see how they work and you play with them and start messing them up and pretty soon you'll get the idea of how this works let me close that one and you'll notice a new session is getting recorded each time or getting created each time I do that we'll do another new session this is dvd audio so this is now now you really got to go back you need a dvd and you need an optical drive in order to do this one so we'll see if anybody's got that so again it's just the application is the dvd player it's going into the recorder it's a 256 megabyte kilobit per second mp3 and the output device in this case is uh headphones along with the recorder and let's do another one some of these get more interesting this one's really really interesting um have you ever just got some audio that's too quiet you can't hear it can't hear it so this is uh starting with system audio let's start this um actually let me change this to oh I guess I could just do system audio this is really interesting and uh I will not try really hard not to blow your ears off but let's start this playing actually I'm going to turn this down oops now I've got to mute and unmute let's turn this down so it's not too loud start this playing right here you'll see it says uh 2x 3x 4x I'm going to start the recorder and it's going to double in volume heard it got a little louder I'm going to go 3x and I'm just slide this up oh good he stops talking let me start this back in the beginning are you going come on well if there's no audio that's not going to be very interesting why are we not hearing that we're hearing a second ago weren't we well just imagine as I was pushing these buttons it got louder and louder and louder but uh when you get into each one of these levels is it coming out can you hear it so if I go up to 3x I can drag it up go to 4x and the video stops that's great all right well you got the idea I guess I should have practiced what I was having at play before I did that but anyway that's a nice way to just gently move the audio up each time you hit the next button up so if you're 2x and you go to 3x it starts back with it down at the same volume and you drag the slider and then you go up to the next one and you drag the slider so it doesn't blast yours out you get to choose how high to go so the question was does it just affect the output or does it increase the volume on the file if you had a recorder in between these two I believe it would also do it to the file would assume so all right let me stop that one you'll notice each time I'm hitting record here uh to get it started so let's do another one other new session input device that's just what we showed you we did that we did that one already we already know that one you notice I'm making a big mess on my desktop here podcast is fun this is this is when I saw this I was like that's the answer my problem when I have somebody come to my house like uh Barry came to my house I think he was on the uh on the podcast one time and I don't actually know how to record two mics in my office I don't want to record you if you're on the other side of the globe but I don't know what to do if you're sitting in the room with me it's kind of ironic but uh and that's because I don't use a mixer if I had a mixer and all those dials and buttons in the XLR mics and act like a pro and compress and things like that I would have that but I don't have that and it turns out if I just simply plug in this is saying internal mic twice but pretend I had a second mic I could plug the two mics in via USB to my Mac if I had two USB ports on my 12 inch MacBook I could so pretend I'm using my MacBook Pro at home and uh so I could plug the two mics in I can send them to separate recorders and then to one uh one final recorder and I think the way the reason they they did this is the default setup is to show you that you can have multiple recordings going on and uh let's say I'm recording Barry and Barry I don't know Belches swears and now Barry would never swear but let's say he he makes some weird noise uh I could take these two separate audio files and cut that noise out of just his track but if nothing goes wrong I've got a track a stereo track with both of us recorded now I did notice when I went in here they actually set them both up as stereo and that's just silly you should change that to mono so that you can uh so that because it's one mic it's only it's mono there's no reason for that to be stereo that I can think of unless Dave corrects me afterwards so that was that was really cool to look at this and go oh my problem solved I don't have to worry about this anymore let's go a new session here and we talked about the record player and this one's a really good example oh there's a hide library button down here I'll hit that this is a great example of those those special audio effects they've got a d click a d noise in the middle of this so that d click is made for recording off of uh off of your lp so that's what that one's for what's that how would you do that oh I just know how to push that button I have a I have a syndrome it's called music music specific and hedonia I am apathetic about music it's a syndrome I need a support group for teasing me I'm kidding about this all right now I'm gonna need somebody else to tell me what sweeten means sweeten makes it more awesome more delicious all right well if you want to sweeten it you push that sweeten button I gotta have somebody teach me some of that part though but I know how to use the tool really well I don't want you think I'm unqualified falling guy and gas how hard is this to do it's really a great slot I want to thank my potter for where he put me in the lineup and we talked about system audio before again you put it in the row you've got a recorder and an output volume so your output to your speakers so you can hear yourself all right the next one's really fun so this is for how you would record Skype and actually let me close this one down I want to show you what I did first so I thought okay I want to record Skype I'm gonna start a new blank session and I did this before I saw how they did it let me put that down this bug in me all right I dragged in an application I said okay I want to have Skype here and inside each of these blocks like I've been showing you there's a lot of different each block has something different each brick has something different that you can change in it in this case Skype knows to have it include audio input so this recorder will record my voice and the voice of the other person and this checkbox here split between channels allows me to edit those two tracks separately so if I'm the one that belches I can cut it out now what this can't do is if you have five people on the Skype call with you all five are on one track you can't separate those because it doesn't get that information so it can't possibly do it but the problem with this one is if you have include audio input and then you put a uh let's see we'll put a recorder in place but then you put your speakers here when you talk you're going to hear your own voice back with a very very tiny delay now people like Dave Hamilton have learned to live with that be able to hear with a slight delay not that big of a delay it's too big okay so I did this at first I was like oh man this thing doesn't work at all the old one was great but all I did was I said well I wonder if I can put a second application block down here and put my headphones off of that and never have them and have it doing two at once and you can and that I thought was a great solution I thought wow that's perfect then I found out that they had another way of doing it which I thought was was really cool the way they did it was they brought in the the two channels they brought they've got Skype coming in they've got the VU meter I didn't show you that but that's just going to go like this and show the tracks you can see both are moving you know separately from the two tracks it records the stereo audio track and that's fine but then on the second one it they did a duplicate the right channel so it turns out you come in on the right channel Skype comes in on the left channel wait backwards I come in on left it comes in Skype comes in on right it says duplicate the left channel and then I never hear myself when it comes out of my headphones so I love that they I did it my own way first and then I learned the way they did it and I went oh that's another I didn't know about that duplicate right that's really really cool another thing I've added to my every every time I record with Barton shots every other week wait I don't want that one I want oh it's right there Bart's voice is always too low and every time I tell Bart turn it up turn it up he says yeah but then I forgot to turn it down for my recording and then I'm too loud my recording quit bugging me so I he said well let's let's take a look at what you can do here and it turns out there's a balance thing and I I'm yeah I just turned me down a little bit and a little bit more of him and slide that little slider and now we come out perfectly every time I have to remember to set it but I always do it by the way I always always always always always always do a test recording if I've recorded with Bart and five minutes later we get back on the horn and we're doing a Mac round table I will test that recording again because it will always change I don't know what it is gremlins or neutrinos or something but something always changes the audio so I'm always amazed when people do a recording like oh it didn't work it sounded horrible did you test it just test it you only have to test a little tiny bit to get it to you know to keep from having those huge problems so let's see if I got any more left here all right oh yes Leon's reminding me about instant on and the scheduler so that's where it's going yeah you install instant on once and then from then on you can have an application already open and then say I want to start recording if you don't have instant on installed it'll quit Skype and bring it back on so once you install it you're done no yeah yeah it's definitely set it and forget it and you don't um you will forget that it ever has to be done but the first time you need it it'll say hey would you like to have instant on and while you're in the instant on window it'll say hey you know while you're here why don't you do this schedule helper and I guess I didn't uh I did not do that one one yet let's let's do web audio let's do a scheduled event um let's say there's a URL like I don't know a podcast that does it show live every Sunday night at five o'clock Pacific time so you know podfeed.com slash icecast happens to be the link for that I just I just happen to have known about that one so we'll go ahead and start that one and then I can go into schedule and uh let me name this so that we this is just called web audio all right so go down into web audio it's going to be the last one and I can say I want to add a timer and now I can say I want to go every Sunday night I want to go at five p.m and to six p.m and I want to quit sources when it's done and now this is going to run automatically it's going to run it's going to record from five to six p.m you're going to get the audio because it's too late for Martin to stay up in the Netherlands and uh actually sleeping right now but that's a way you can record things that you want to record and uh my friend Margaret listens to actually I think it might be it's a radio show in the Netherlands it just coincidentally I just thought of this she records this radio show in the middle of the night and she loves it because she can just set this up to record and uh and that works that works great I think that might be it's probably something I forgot to tell you about this but let's get some questions going what uh any questions yeah that's a that's a good question I do a couple of different things um I still use a program called called wiretap studio it was from um ambrosia software and I don't think that's a development anymore um but let's do a reveal and finder this is what I do with it is I do a right click open with wiretap studio and this is what I do to clip out little things and to look at the levels and to do a test because uh my my blind friends think it's hysterical I can't audio edit audio unless I can see it it sounds really stupid but it's like I want to be able to see where that cough is or the dog bark like right here look at that maybe that's something I want to cut out I can select that and delete it and now it's now it's fixed it's gone actually that was the wrong kind of delete let me just do a delete there we go so it just picked that little piece up and deleted it so if it's just something like that that's what I use for my day-to-day podcasting stuff though I compile all the pieces together using the old garage band garage band 605 I think it is so the new garage band 10 is not very friendly to podcasting it's really made more for musicians and it doesn't have a lot of the features when that goes away I'm thinking probably going to go to Amadeus which is what a lot of people like so I don't amadeus or amadeus pro that's what people have been moving to I think so that's why I used auto edit and that what you really need is if you're doing a show like mine is a multi-track editor because I'm bringing in my intro music I'm bringing in I do I do it all post recording well it's kind of a mixture I'll record a bunch of audio and then I'll drop in my intro and my outro I don't play the intro and then talk over it I'm just too spastic I've tried and I can't do it I always drop it in after the fact and then I drop in the the chitchat across the pond but you if you watch the live show you see me doing these recordings and it's really really nice to have a live audience because they'll be going Allison it's not December it's Jim you know where I just said the wrong date or I said my megabytes instead of megabits I can always count on the chat room to tell me I'm wrong which is nice actually and they're usually polite save yes they also they also remind me to save we have I have an app a no-cellicast app that there's a built-in annoy Allison mode and if you're supposed to say save is what it's supposed to say but people change it to other things to irritate me so that's nice but but I drop in chitchat across the pond and I drop in the music and the jingles for dumb question corner and that kind of thing and then but you actually see me recording the the the bits that it's just going to be just me so that's why you need a multi-track recorder for that but if you're just doing a single thing you could use something like this but again I don't think uh roga miba or I'm sorry I don't think ambrosia is still developing this they used to be able to do things I capture system audio but when uh apple changed the way it was doing it they went nope it's impossible it can't be done anymore we give up and then roga miba just went yeah you can here other questions all right I haven't seen oh I got another one from Leon good you don't want to post-process the audio and take out noise and things like that right right yeah to some extent a lot of it is is maybe using something like this to be able to make your test recordings and and go through a process of elimination if you've got a 60 Hertz hum because you've got your mic sitting on the desk and a lamp and it's the whole thing's vibrating this you can denoise this but it's going to sound horrible I mean you can sometimes fix it if it's you know this was a once in a lifetime the guy died after you made the recording and you can't ever get this back yeah go do it but it's much better to hear those things and get rid of them ahead of time yeah yeah right right go ahead David you haven't been chance mentioned that roga miba yet have David what David's saying for the for the recording I want to make sure we capture that is that um audio hijack does have too much of a delay to listen to your own voice uh so that isn't a good method of that it'll pick up if if you know Bart's got a problem on on his end it'll pick that up but not what you're doing on your on your own voice uh because you just simply can't listen to it what he was saying was in audio hijack uh pro you could shorten that by changing the buffer size to to get rid of that lag uh or get it minimized to what you could actually stand and that isn't in there now but it could be and they just haven't done it and Dave would like everybody to write to support at roga miba.com I didn't say full uh to support at roga miba.com and ask them for that so that Dave can quit whining about it I think that's what we're looking for he's saying if you if you increase the sample rate it fills the buffer faster and shortens up the lag did it work yeah it's too scary okay that's an interesting thing that he's hearing how many people appreciate good audio um somebody once said uh bad audio is fatiguing it's it just it just makes you tired when you're like it's too loud and too quiet too loud all right well I think we're pretty much done here um I've got business cards if anybody wants one for because they can't memorize pod feet dot com uh but again it's a uh it's a technology geek podcast with an ever so slight macintosh bias in other words a giant macintosh bias all right thank you


Hello! Today I'm going to tell you something about the research that Christoph de Bruynech, Jan Rotella and I did on the block site for PJ Masks 96. If you are interested, you can read more about it in our paper, which is titled Algebraic and Higher Order Differential Cryptanalysis of PJ Masks 96, the title of this presentation. So what is PJ Masks? PJ Masks is a second round candidate for the NIST lightweight competition. It is designed by Kudasi, Shah, Keubel, Piran, Rivain, Sasaki and Tim. PJ Masks consist of two schemes. So the first one is PJ Masks 128AEAD. It's an authenticated encryption scheme based on block cipher PJ Masks 128. It uses the OCB mode as a mode of operations. The other in the family is PJ Masks 96AEAD. It is based on the block cipher PJ Masks 96 and it also uses the offset code book mode. In our research we focused on PJ Masks 96, the block cipher. And what we managed to do was to design a key recovery attack on the full round PJ Masks 96. The block cipher PJ Masks 96 works on bit states of 3 rows of length 32. And the round function is designed as first to be at the round key. The key of PJ Masks 96 has 128 bits. The key schedule is linear and after each step in the key schedule you get a round key of 128 bits you discard the last 32 and you add what remains you add to the PJ Masks state. Then you do a sub bytes layer where you apply a 3-bit S-box to each column. This S-box has degree 2 and its inverse also has degree 2 and that's important later. After that you do the linear round which is the mixed rows and it works by applying a circular binary matrix to each row in the state. And it adds quite some diffusion to the scheme. So you do this 14 times because PJ Masks 96 has 14 rows. And after the last round we do one extra round key. Our attack is based on higher order derivatives. I will repeat the definition and most important properties. So we have a function an element in the domain and then we say the derivative of f to a which you call delta a of f. It's a function that's defined by f of x plus a plus f of x. The interesting properties that it has is that you can repeat it as often as you'd like. So if a1 up until ak are linearly independent you can re-apply the derivative and it's shown that it's the same as summing over all factors in the space spanned by a1 up until ak of f of x plus v. We call this delta v of fx. If you have something that's not linearly independent then this re-applied derivative will give zero. So if we investigate this multiple derivative which is actually higher order derivative of f then its degree is bounded by the degree of f minus the dimension of v. So if this dimensional v is large enough then this will become at most zero or maybe at most negative and at most negative means that this is just the zero function. So if the degree of v is large then the degree of f then the derivative of f with respect to v is zero. So we can apply this to Pijama'sk but before you can apply it to any function you need to know what the degree of f is because the dimension of v has to be at least the degree of f. So the degrees of the n-round versions of Pijama'sk and 96 are bounded by the values in this table. The authors of the original Pijama'sk paper already included them and they used the bounds by Buracanto and the Gagnere. So what we see here is that if we take a vector space or an affine space of dimension 94 then 10 rounds of Pijama'sk will give constant values. The inverse of Pijama'sk has the same property and that's because the degrees of 10 rounds of Pijama'sk in the forward direction or 10 rounds of Pijama'sk in the backward direction are the same because the only thing where that matters is in the non-linear layers and that's only the sub-bytes layer and as I mentioned before the S-box has degree two but the inverse of the S-box also has degree two. So we cannot get to all rounds so we do something of a meet in the middle attack. We can get 11.5 rounds for this distinguisher. So the .5 rounds means half round which is actually the linear layers so the add-round key and the mix rows because they don't add to the degree we can just include them in our function. We don't know exactly what this function looked like altogether and if you want the algebraic normal form expression that's not doable but we know that applying this full vector space we will get some constant values. If we choose this smart enough then we can go to 11.5 rounds with a vector space of dimension 94 so that's what we're going to do. If we take U to be the space where the first column is zero and everything else can be whatever then this is a space of dimension 93. Then we take a vector space of dimension one which is zero in all positions except the first column and the first column can be any vector except the zero vector and then we add these two vector spaces to get a vector space of dimension 94. This is one dimensional 93 dimensional sum is 94 and this is a vector space that helps us in getting constant values after 11 rounds of pgmask and that's because if you apply one round of pgmask to this vector space three then the result will also be an affine space and if and then you have basically have a degree decrease of two so therefore you can get two 11 rounds. So now this left part the solving equations part I did not discuss yet so that will be the next thing because higher than 11.5 rounds with the distinguisher it's not helping us break the system. So what we do for each key bit we put a variable and then we run this together with corresponding plaintext through the system and we get equations in the key bits polynomial equations that we can try to solve. So how do you solve polynomial systems of equation? The easiest is to linearize the system and so we need to replace every polynomial with a variable and then we have a linear system we can do Gaussian elimination to solve it. If we apply the full codebook so for all possible ciphertext we compute the plaintext and we compute all the or actually pre-compute all the equations that we can for our variable key we get 448 equations. If we want to be able to solve the system the number of variables in our case would be number of monomials should be at most 448 but unfortunately we have way too many monomials at this point so what can we do? We need to decrease the number of monomials and for that we have some tricks. The first one we try to reduce the monomials by looking more specifically at the s-box so for instance the first coordinate of the s-box is defined by the first coordinate times the last one plus the middle one and if you expand these brackets and then reorder the terms you see that you apply the s-box to p and you add the s-box applied to k and then you have these two mixed terms. So if you would write it out you would see that the number of monomials in this upper equation would be 6 and in the lower one if we say this will be a new variable and this will be a new variable we will only have 4 so it's not a very big decrease but it's still a decrease and we can do this even further so if we also apply the mixed rows and the add round key layer then we get this equation so we added the linear layer to these first parts and we apply the linear layer to this last part which consists of all mixed terms and then we add the new round key so now if we take this part as a new variable and this part as new variables we get equivalent keys and equivalent plain text and we reduce the number of monomials by quite a big amount and of course since these are bijective you can always go back to the results you needed afterwards but it's still too many monomials so at this point there's only one thing you can do or at least there's one thing that that's trivial to do maybe is to do guess and determine so what we do we guess some of the round key bits and see if it works so we guess the all the bits in the first round key so that's 96 bits that we guess that are either 0 or 1 and that reduces the number of monomials of the equation to 569 and that's quite close to the 448 but not yet close enough so what we need to do we guess four more bits the specific bits they're called kappa 1, kappa 13, kappa 25 and kappa 26 but if you guess them so that means you have to guess 100 bits in total then we are left with 411 monomials and for computation it introduces a factor 2 to the 100 so it it will cost some more time but we can now solve the system with a caution elimination and adding all this together we come to the complexities of our attack so for 14 rounds we have a time complexity of 2 to the 115 and the data complexity of 2296 so this is the full code book and this is less than the exhaustive key search on 128 bits so therefore technically or theoretically it's a brick and then we also have some reduced rounds we did the computations of the amount of data you need and the amount of time it will cost and this is all not very practical or not practical at all to get this amount of information or this amount of time it's it's too much but if we take eight or seven rounds it will improve greatly so this is actually in time this is doable getting this amount of information is still quite hard but they're both below the birthday bounds so technically that's quite a relevant attack on these reduced round versions and of course there's always room for some future research some easy things to mention well they're not easy to research but if you can do something to improve the attack is to give a better bounce on the degrees I think that's quite hard but if you produce the upper bounce on the degrees you immediately have an improved attack but more importantly you can try to attack the AEAD scheme beach and mask 96 we also tried that and we got to seven rounds with a huge time complexity and quite a big data complexity but maybe someone else can do better or you can even if you're feeling very lucky try attacking the beach and mask 128 AEAD scheme to which this attack did not help us at all so we don't have any results so then there's nothing to that remains except for thanking you for your attention and hopefully seeing you at the online part of the presentation


Hi everybody, Joe for jaspyscasebreaks.com. Happy Thursday coming at you with a quick two box break of 2020 Panini and Mack of the Football. Two box picker team number four from jaspyscasebreaks.com. Two box four, five and six are all from this same case right here. So thanks to all of these lovely people for getting into the action. Appreciate it. We did a quick random number block randomizer for the Chargers and Dolphins as well and that group is right here which is being uploaded right now in a separate video. Thanks everyone for getting in. Remember zero gets any of our redemptions for those teams right there including one-of-one redemptions. Robert you'll get any live one-of-ones. I forget if any of those players are redemptions or not but I guess we'll find out momentarily. Okay now let's pop this open here. Alright so we'll go one two three four five six so one two three four five six on the dice roll. We'll use the red die right here and it's three one two three four so the two middle boxes right here. So these two guys and these we'll save for next time. We'll probably be mixed up but add a little another layer of randomization here. And I put little squiggly marks right there so you know that they're all from the same case. Marked myself. Here we go. Groups right here together. Alright good luck ladies and gents. Thank you for getting in. Appreciate it. RTR saying real-time reference saying I've never bought a box of Immaculate of any sport. Bought into anything like this? Well if you like I feel like Immaculate, NT, Flawless are all kind of like cousins. They're in the same family. So if you like NT and Flawless Immaculate is pretty similar. Alright we got Marshawn Lynch leading things off five out of 25 for Corey and the Seahawks. The hawks of the sea. We got a quad relic here 44 out of 49 some old-school bangles. Wait old-school to new-school bangles. Really old-school Chris Collinsworth. Then you got Chad Johnson, AJ Green and now new-school T Higgins. It's a nice quad relic for Robert Grease and the bangles. Is that what the logo was? It wasn't the Tiger Strike B? Collinsworth's Day? Alright next one is Chase Young triple relic. It's pretty good. One out of ten triple relic Chase Young going to Ryan Harold and the Washington football team. If Chase Young ends up chasing Brady around this weekend, Washington might have a chance. We've got DK Metcalf 89 out of 99. That's a nice patch and auto. Premium patch auto another Seahawk for Corey Cote. Nice. Eye black Jersey. Jersey and auto. Joe Thysman 43 out of 49 for Ryan Harold and the Washington football team. These look pretty sharp. Eye black Jersey nice. He's got a nice auto. Great peming chip from Joe. Silver ink auto on that eye black. The last one here is KJ Hamler. Rookie Jersey and autograph from my rivals the Broncos. 94 out of 99. That'll be for Steve Freeze and Denver. There you go. And that was box one. And the second box. Alright we got a blockchain card here and that's going to be all-time great signatures Aaron Rodgers. That's for Green Band. He depend group for Green Bay blockchain redemption going to Ryan Kasin and the Green Bay Packers. Let's see how Aaron Rodgers does in the playoffs. Is this the best team that Aaron Rodgers has had since the last time he went to a Super Bowl? I don't know. I feel like a lot of his everyone's like oh why didn't they give Aaron Rodgers any help but if you look if I mean those guys aren't playing too bad then Devonte Adams is pretty good. 6 out of 25 Marquise Brown. RTR saying yeah it might be Aaron Rodgers best team since the last time he's in a Super Bowl. Marquise Brown for the purple birds going to Joshua B. We got George Kittle 30 out of 85. Piece of his jersey going to the Niners. That'll be for Josh Proust. Being Dorothy Levens was maybe better than what they have now Aaron Jones. We got a dual relic. Tom Brady, Patrick Mahomes. Past and present. Uh-oh. One person happy, one person sad. It's Karen with her pats and it's Matthew Shearer and the Chiefs. One person happy, one person sad. We've got Mark Dupre. Remember him? Premium relic and autograph. 60 out of 99. That'll be for Miami. That's a number block team. That goes to Miami 0. Goes to the digit right next to the slash. Townsend with 0. We've got another eye black autograph. 20 out of 50. Ty Law, the long arm of the law. Going to Karen Steele and her Patriots. There you go. And the last one here is, oh we love it. 20 out of 75. Jay Hart. Two-color patch. An auto going to Ryan Kasin and the Green Bay Packers. If the Packers win a Super Bowl, do they just trade, trade Aaron Rodgers and say, all right, Jordan Loftime. Thanks Aaron. I don't know what they're going to do with Aaron Rodgers. All right. Let's go back to random.org and a blank list right here. There's some New Dice, New List. New England, KC. Team on top after three. Two and a one. We'll get it. One, two, and three. After three times, we got KC on top after three. Sorry, Karen and the Pats. Congrats to Matthew and the Chiefs. 48 out of 49. And there you have it, boys and girls. I'm Joe for jaspyscasebrakes.com. Thanks for breaking with us. Thanks for watching. We got another two box break in the store. Check it out and we'll see you next time for the next one. Bye-bye.


Dear students, in this topic we shall discuss hormones and their general properties. The hormones are signaling molecules which are produced by the endocrine glands. They are transported by the blood to their respective target tissues. Hormones regulate the physiology and behavior of an animal. Dear students, we shall discuss in detail the properties of hormones. The first property of the hormone is that they act on specific target cells or tissues. The specificity of hormonal action depends on the types of receptors. A hormone comes in contact to all types of tissues in the body during circulation. This hormone acts only on its target cells because of the presence of receptors which are not present with every cell. Only the cells which have these receptors are affected by the hormone. The action of the hormone depends on the nature of the enzyme cascade which is linked to the receptor. The specificity of the receptor is that as a result of that, the chain of chemical reactions is only found in the cells which have the receptors. Moreover, the receptors are present but if the enzyme is different from the cascade, a hormone can be used on multiple actions. If two types of receptors are present for a hormone and two different types of tissues are present, then different types of enzyme cascades are also produced as a result of that. This is the reason that some hormones affect more than one tissue but they produce different effects. Here students, hormones are active at very low concentration. The first thing is that endocrine glands produce hormones in a very small quantity. The second thing is that these hormones are circulated through the bladder where they are diluted. So for tissues, the available concentration of a hormone lies between 10H2 power minus 8 to 10H2 power minus 12 molar. But all in all hormones are still active at this low concentration. The reason for this is that the hormonal actions are amplified. Because the binding of a hormone to its receptor leads to an enzymatic cascade. This enzymatic cascade has such steps in which the action of the hormone is actually multiplied or amplified. So just a few molecules of a hormone can modulate thousands or millions of molecular reactions within a cell.


All right, let's talk about axiomers plus holding alphabet. Waymo may be developing self-driving trucks. Yeah, well, look, self-driving trucks are the answer because drivers have the rules and restrictions on drivers are very tough now. It's something that unless the federal government rolls back, it's just the limited amount of time that they're allowed to drive and they have to keep logs. Now, Schneider, a very big truck and company, told me, you should not expect an 18-wheeler to have no driver and it'd drive it next to you. That's not going to happen. But there are lots of different kinds of delivery trucks and there is a huge delivery truck driver shortage. So this could be for that.


The high frequency of off-target activity in CRISPR-Cas9 is a concern for therapeutic and clinical applications, but strategies to minimize off-target cleavage can improve specificity and enable faithful interpretation of genome editing data. This article was authored by Xiao Weijian, Louis YT, Xiao Gangwang, and others.