WPE speech dereverberation

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- wpe.p is a MATLAB pcode that implements the dereverberation algorithm described in the following paper,
  Takuya Yoshioka, Tomohiro Nakatani, Masato Miyoshi, and Hiroshi G. Okuno, 
  "Blind separation and dereverberation of speech mixtures by joint optimization," 
  IEEE Transactions on Audio, Speech, and Language Processing, vol. 19, no. 1, pp. 69-84, Jan. 2011. 
-	wpe_test.m is a matlab script that provides an example on how to use the software wpe.p.
- wpe_wavio.p is similar to wpe.p but performs inputs wav files and ouput wav files
- wpe_test_wavio.m is a matlab script that provides an example on how to use the software wpe_wavio.p.
- The files arrayname.lst, local.m and sample.scp are setting files needed to run wpe.p and wpe_test.m.
- The files included in wav_sample include sample reverberant speech used to test the dereverberation algorithm.

In addition note that

The package includes a MATLAB pcode version of the WPE algorithm that can only be used with MATLAB and cannot be compiled.
You need the MATLAB signal processing toolbox.
The tools have been tested with Matlab versions earlier than R2017b. Currently it does not run properly with R2018.
Note that NTT may stop releasing this code at any time without prior notice.