CALLHOME American English Transcripts

Item Name: CALLHOME American English Transcripts
Author(s): Paul Kingsbury, Stephanie Strassel, Cynthia McLemore, Robert McIntyre
LDC Catalog No.: LDC97T14
ISBN: 1-58563-112-4
ISLRN: 707-070-566-734-1
Member Year(s): 1997
DCMI Type(s): Text
Data Source(s): telephone conversations
Project(s): EARS, GALE, Hub5-LVCSR
Application(s): speech recognition
Language(s): English
Language ID(s): eng
License(s): LDC User Agreement for Non-Members
Online Documentation: LDC97T14 Documents
Licensing Instructions: Subscription & Standard Members, and Non-Members
Citation: Kingsbury, Paul, et al. CALLHOME American English Transcripts LDC97T14. Web Download. Philadelphia: Linguistic Data Consortium, 1997.
Related Works: View


The text component of the CALLHOME English package includes time-aligned transcripts and documentation files for 120 unscripted telephone conversations between native speakers of English; a separate catalog entry, (LDC97S42) provides the speech data for these conversations, which are partitioned into separate subdirectories for "training" (80 conversations), "development test set" (20 conversations) and "evalutation test set" (20 conversations).


The transcripts cover a contiguous ten minute segment of each call in the training and development test sets, and a five minute segment of each call in the evaluation set, yielding a total of 18.3 hours of transcribed spontaneous speech, comprising about 230,000 words. The transcripts are timestamped by speaker turn for alignment with the speech signal and are provided in standard orthography.

In addition to transcript files, this corpus contains full documentation on the transcription conventions and format. Complete auditing information on the speakers represented in the transcripts (including gender, channel quality and so on) is also included.

This corpus is distributed throughout the LDC's FTP server.

The corpus of telephone speech (LDC97S42) is available separately, as well as an associated lexicon (LDC97L20).


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