{"action":"created","issue":{"url":"https://api.github.com/repos/TomWhitwell/RadioMusic/issues/70","labels_url":"https://api.github.com/repos/TomWhitwell/RadioMusic/issues/70/labels{/name}","comments_url":"https://api.github.com/repos/TomWhitwell/RadioMusic/issues/70/comments","events_url":"https://api.github.com/repos/TomWhitwell/RadioMusic/issues/70/events","html_url":"https://github.com/TomWhitwell/RadioMusic/issues/70","id":75883993,"number":70,"title":"Distortion after module has been playing for a long period ","user":{"login":"TomWhitwell","id":1890544,"avatar_url":"https://avatars.githubusercontent.com/u/1890544?v=3","gravatar_id":"","url":"https://api.github.com/users/TomWhitwell","html_url":"https://github.com/TomWhitwell","followers_url":"https://api.github.com/users/TomWhitwell/followers","following_url":"https://api.github.com/users/TomWhitwell/following{/other_user}","gists_url":"https://api.github.com/users/TomWhitwell/gists{/gist_id}","starred_url":"https://api.github.com/users/TomWhitwell/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/TomWhitwell/subscriptions","organizations_url":"https://api.github.com/users/TomWhitwell/orgs","repos_url":"https://api.github.com/users/TomWhitwell/repos","events_url":"https://api.github.com/users/TomWhitwell/events{/privacy}","received_events_url":"https://api.github.com/users/TomWhitwell/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/TomWhitwell/RadioMusic/labels/Back%20PCB","name":"Back PCB","color":"bfe5bf"},{"url":"https://api.github.com/repos/TomWhitwell/RadioMusic/labels/bug","name":"bug","color":"fc2929"},{"url":"https://api.github.com/repos/TomWhitwell/RadioMusic/labels/Hardware","name":"Hardware","color":"fbca04"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":8,"created_at":"2015-05-13T07:37:20Z","updated_at":"2015-06-10T17:21:06Z","closed_at":null,"body":"Celestial Tomes [writes](https://www.muffwiggler.com/forum/viewtopic.php?p=1895781#1895781): \"I'm having an issue with the audio quality slowly becoming distorted over time. When I turn on my system the module sounds fine. Over the course of maybe 20-30 minutes the sound quality decreases.\"\r\n\r\nI also had this issue - but over a much longer timeframe - leaving the modular on overnight. \r\n\r\nI think the problem is that there is no path to ground for the op amp input (IC4D) \r\nLast night I added adding a 330K resistor in parallel to C4. \r\n\r\nBased on one night's testing (!) this solved the problem completely. \r\n\r\nI'm going to continue experimenting with this to see if this can also cure #50 - my first test with 330k seemed to improve it slightly, will try with a lower value resistor. \r\n\r\n![](https://raw.githubusercontent.com/TomWhitwell/RadioMusic/master/Collateral/BuildImages/resistorfix.png)"},"comment":{"url":"https://api.github.com/repos/TomWhitwell/RadioMusic/issues/comments/110842619","html_url":"https://github.com/TomWhitwell/RadioMusic/issues/70#issuecomment-110842619","issue_url":"https://api.github.com/repos/TomWhitwell/RadioMusic/issues/70","id":110842619,"user":{"login":"TomWhitwell","id":1890544,"avatar_url":"https://avatars.githubusercontent.com/u/1890544?v=3","gravatar_id":"","url":"https://api.github.com/users/TomWhitwell","html_url":"https://github.com/TomWhitwell","followers_url":"https://api.github.com/users/TomWhitwell/followers","following_url":"https://api.github.com/users/TomWhitwell/following{/other_user}","gists_url":"https://api.github.com/users/TomWhitwell/gists{/gist_id}","starred_url":"https://api.github.com/users/TomWhitwell/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/TomWhitwell/subscriptions","organizations_url":"https://api.github.com/users/TomWhitwell/orgs","repos_url":"https://api.github.com/users/TomWhitwell/repos","events_url":"https://api.github.com/users/TomWhitwell/events{/privacy}","received_events_url":"https://api.github.com/users/TomWhitwell/received_events","type":"User","site_admin":false},"created_at":"2015-06-10T17:21:06Z","updated_at":"2015-06-10T17:21:06Z","body":"@RichardDevine Cool - mail me tom.whitwell@gmail.com if you need any help "}}