Portland Cellular Corpus
                            Release 1.3

              Center for Spoken Language Understanding

UPDATED 23 August 2002
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FINAL RELEASE - Release Version 1.3

we have added time aligned phoneme-level transcriptions
(automatic forced alignment).

29 March 2002
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Release version 1.2

Moved phonetic transcription to labels directory. 
Small changes in readme.txt and file structure.


15 September 2000
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Release Version 1.1

Several changes have been implemented that differentiate
this version of the Portland Cellular Corpus from version
1.0. These changes include the following:

* Speech files in the /speech directory have been 
  converted from NIST format to RIFF format.

* The directory structure has been modified so that 
  it is more logical, and so that it is easier to access.

* The documentation has been updated so that it 
  accurately reflects the corpus contents.

These and other changes have been made to make the corpus
more useful to the end-user.

June 1998
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Release Version 1.0cd (June 1998)

This corpus was originally collected and distributed on 8mm
tape for use on UNIX-based workstations.  For this release,
we have converted the corpus to a more platform-independent
file structure.

* Converted file and directory names to 8.3 naming 
  format.

* Verified mulaw format for all audio files. 

* Rewrote audio file headers with file name and corpus 
  information.

* Updated documentation to reflect changes.

* Burned to ISO 9660 CD-ROM.

December 1995
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Release Version 1.0

First complete release.