SR4X Corpus
                            Release 1.2

              Center for Spoken Language Understanding

UPDATED 23 August 2002
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FINAL RELEASE - Release Version 1.2

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


29 March 2002
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Small modification of readme.txt and file structure.


24 July 2000
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Release Version 1.1

Several changes have been implemented that differentiate this version
of the SR4X 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.

* Individual transcription files have been extracted from the
  trans.txt file. These individual files have been placed
  in /trans directory which has a structure that exactly parallels
  that of the /speech directory.

* 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.

* Split transcriptions into individual files with same naming conventions 
  as speech files.

* Verified NIST 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.

July 1996
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Release Version 1.0

Initial release version.