Datasets:
Tasks:
Automatic Speech Recognition
Languages:
Swedish
| THE WAXHOLM CORPUS | |
| The Waxholm corpus was collected in 1993 - 1994 at the department of | |
| Speech, Hearing and Music (TMH), KTH. It is described in several | |
| publications. Two are included in this archive. Publication of work | |
| using the Waxholm corpus should refer to either of these. More | |
| information on the Waxholm project can be found on the web page | |
| http://www.speech.kth.se/waxholm/waxholm2.html | |
| FILE INFORMATION | |
| SAMPLED FILES The .smp files contain the speech signal. The identity | |
| of the speaker is coded by the two digits after 'fp20' in the file | |
| name. The smp file format was developed by TMH. Recording information | |
| is stored in a header as a 1024 byte text string. The speech signal in | |
| the Waxholm corpus is quantised into 16 bits, 2 bytes/sample and the | |
| byte order is big-endian (most significant byte first). The sampling | |
| frequency is 16 kHz. Here is an example of a file header: | |
| >head -9 fp2001.1.01.smp | |
| file=samp ; file type is sampled signal | |
| msb=first ; byte order | |
| sftot=16000 ; sampling frequency in Hz | |
| nchans=1 ; number of channels | |
| preemph=no ; no signal preemphasis during recording | |
| view=-10,10 | |
| born=/o/libhex/ad_da.h25 | |
| range=-12303,11168 ; amplitude range | |
| = | |
| LABEL FILES | |
| Normally, each sample file has a label file. This has been | |
| produced in four steps. The first step was to manually enter the | |
| orthographic text by listening. From this text a sequence of phonemes | |
| were produced by a rule-based text-to-phoneme module. The endpoint | |
| time positions of the phonemes were computed by an automatic alignment | |
| program, followed by manual correction. Some of the speech files have | |
| no label file, due to different problems in this process. These files | |
| should not be used for training or testing. | |
| The labels are stored in .mix files. Below is an example of the | |
| beginning of a mix file. | |
| >head -20 fp2001.1.01.smp.mix | |
| CORRECTED: OK jesper Jesper Hogberg Thu Jun 22 13:26:26 EET 1995 | |
| AUTOLABEL: tony A. de Serpa-Leitao Mon Nov 15 13:44:30 MET 1993 | |
| Waxholm dialog. /u/wax/data/scenes/fp2001/fp2001.1.01.smp | |
| TEXT: | |
| jag vill }ka h{rifr}n . | |
| J'A:+ V'IL+ "]:K'A H'[3RIFR]N. | |
| CT 1 | |
| Labels: J'A: V'IL "]:KkA H'[3RIFR]N . | |
| FR 11219 #J >pm #J >w jag 0.701 sec | |
| FR 12565 $'A: >pm $'A:+ 0.785 sec | |
| FR 13189 #V >pm #V >w vill 0.824 sec | |
| FR 13895 $'I >pm $'I 0.868 sec | |
| FR 14700 $L >pm $L+ 0.919 sec | |
| The orthographic text representation is after the label 'TEXT:' CT is | |
| the frame length in number of sample points. (Always = 1 in Waxholm | |
| mix files) Each line starting with 'FR' contains up to three labels at | |
| the phonetic, phonemic and word levels. FR is immediately followed by | |
| the frame number of the start of the segment. Since CT = 1, FR is the | |
| sample index in the file. If a frame duration is = 0, the label has | |
| been judged as a non-pronounced segment and deleted by the manual | |
| labeller, although it was generated by the text-to-phoneme or the | |
| automatic alignment modules. Column 3 in an FR line is the phonetic | |
| label. Initial '#' indicates word initial position. '$' indicates | |
| other positions. The optional label '>pm' precedes the phonemic label, | |
| which has been generated by the text-to-phoneme rules. Often, the | |
| phonemic and the phonetic labels are identical. The optional '>w' is | |
| followed by the identity of the word beginning at this frame. The | |
| phoneme symbol inventory is mainly STA, used by the KTH/TMH RULSYS | |
| system. It is specified in the included file 'sampa_latex_se.pdf'. | |
| Some extra labels at the phonetic level have been defined. | |
| The most common ones are: | |
| sm lip or tongue opening | |
| p: silent interval | |
| pa aspirative sound from breathing | |
| kl click sound | |
| v short vocalic segment between consonants | |
| upper case of stops occlusion | |
| lower case of stops burst | |
| The label 'Labels:' before the FR lines is a text string assembled | |
| from the FR labels | |
| The mix files in this archive correspond to those with the name | |
| extension .mix.new in the original corpus. Besides a few other | |
| corrections, the main difference is that burst segments after | |
| retroflex stops were not labelled as retroflex in the original .mix | |
| files ( d, t after 2D and 2T have been changed to 2d and 2t). | |
| REFERENCES | |
| Bertenstam, J., Blomberg, M., Carlson, R., Elenius, K., Granstr�m, | |
| B., Gustafson, J., Hunnicutt, S., H�gberg, J., Lindell, R., Neovius, | |
| L., Nord, L., de Serpa-Leitao, A., and Str�m, N.,(1995). "Spoken | |
| dialogue data collected in the WAXHOLM project" STL-QPSR 1/1995, | |
| KTH/TMH, Stockholm. Bertenstam, J., Blomberg, M., Carlson, R., | |
| Elenius, K., Granstr�m, B., Gustafson, J., Hunnicutt, S., H�gberg, J., | |
| Lindell, R., Neovius, L., de Serpa-Leitao, A., Nord, L., & Str�m, | |
| N. (1995). The Waxholm application data-base. In Pardo, J.M. (Ed.), | |
| Proceedings Eurospeech 1995 (pp. 833-836). Madrid. | |
| Comments and error reports are welcome. These should be sent to: | |
| Mats Blomberg <[email protected]> or Kjell Elenius <[email protected]> | |