Yes/No Corpus
                            Release 1.2

              Center for Spoken Language Understanding


UPDATED: 23 August 2002


This document describes the file naming conventions used for this
distribution and gives a brief description of the various file formats
used.

File Naming Convention
----------------------
Each filename in /speech and /trans directories encodes
information about the call number, utterance type, and file type.  A
typical filename will look like:

	YN-1214.evermarried.wav

The "YN" prefix indicates the corpus name, i.e. Yes/No.  The number
between the "-" and the first "." is the call number.  Call numbers
are described below.  The string between the first and second "." is
the utterance type.  The following utterance types are in this corpus:

	cellular	"Are you calling from a cellular phone?"
	ever_married	"Have you ever been married?"
	have_home_phone	"Do you have a telephone at home?"
	hispanic	"Are you of Hispanic origin?"
	letterA		"Is the letter A in your last name?"
	no		"Please say 'no'".
	results		"Would you like to hear about the results of
                         our research?"
	yes		"Please say 'yes'".
	yorn		Various prompts

The final, three letter, extention indicates the file type.  The
following types are in this distribution:

  wav		The speech data
  txt		The text-based transcription of the speech data

File Formats
------------
The "wav" files contain speech data and use the RIFF standard file format.
This file format is 16-bit linearly encoded.

The "trans" file in the /docs directory is a list of all of the text 
transcriptions.  Each file transcription is on a separate line.  The first 
value on the line, separated by a single space, is a call number, utterance 
type, and transcription type triplet.  This pair uniquely defines each file.
The transcription type is either txt or mtxt for human or machine
based transcriptions, respectively.  The remaining words on the line
are the transcription. 

FOR THIS VERSION OF THE CORPUS, THE CONTENTS OF THE 
TRANS.TXT FILE HAVE BEEN EXTRACTED INDIVIDUALLY INTO THE /TRANS DIRECTORY.
The /trans directory file structure exactly parallels the structure of the
/speech directory. Each file in the /trans directory is in .txt format
and contains a line, as desribed in the previous paragraph, that uniquely
defines each corresponding sound file.