s=sig_competingtalkers(signame); [s,fs]=sig_competingtalkers(signame);
sig_competingtalkers(signame) loads one of several test signals consisting of competing talkers. All the talkers are taken from the TIMIT speech corpus: http://www.ldc.upenn.edu/Catalog/CatalogEntry.jsp?catalogId=LDC93S1.
The signals have 2 channels and are all recorded with a sampling rate of 16 kHz.
[sig,fs]=sig_competingtalkers(signame) additionally returns the sampling frequency fs.
The value of signame may be one of:
| 'one_of_three' | XXX Description missing |
| 'two_of_three' | XXX Description missing |
| 'three_of_three' | XXX Description missing |
| 'two_speakers' | XXX Description missing |
| 'five_speakers' | XXX Description missing |
| 'bnoise' | Speech shaped noise |
The following plot shows an estimate of the power spectral density of the first channels of the speech shaped noise:
s=sig_competingtalkers('bnoise');
pwelch(s(:,1),hamming(150));