Item Name: CTIMIT
Authors: E. Bryan George, Kathy L. Brown, Martha Birnbaum, and Michael Macon
LDC Catalog No.: LDC96S30
ISBN: 1-58563-088-8
Data Type: speech
Sample Rate: 8000 Hz
Sampling Format: 1-channel pcm
Data Source(s): telephone speech
Application(s): speech recognition
Language(s): English
Language ID(s): eng
Distribution: 1 CD
Member fee: $0 for 1996 members
Non-member Fee: US $250.00
Reduced-License Fee: US $250.00
Extra-Copy Fee: US $250.00
Non-member License: yes
Readme File: yes
Online documentation: yes
Licensing Instructions: Subscription & Standard Members, and Non-Members
Citation: E. Bryan George, et al.
Linguistic Data Consortium, Philadelphia

The CTIMIT corpus is a cellular-bandwidth adjunct to the TIMIT Acoustic Phonetic Continuous Speech Corpus (NIST Speech Disc CD1-1.1/NTIS Pb91-505065, October 1990). The corpus was contributed by Lockheed-Martin Sanders to the LDC for distribution on CD-ROM media.

The CTIMIT read speech corpus has been designed to provide a large phonetically labeled database for use in the design and evaluation of speech processing systems operating in diverse, often hostile, cellular telephone environments. CTIMIT was collected by members of the Voice Communication Initiative (VCI) at Lockheed-Martin Sanders' Signal Processing Center of Technology (SPCOT) as part of internal R&D efforts, with additional sponsorship from the Wireless Communications Group in the company's Advanced Engineering and Technology (AE&T) Division.

Like NTIMIT, CTIMIT is based on the original TIMIT recordings, which were passed through a sample of actual telephone circuits--cellular circuits in the case of CTIMIT. Thus the original phonetic segmentation and labeling of TIMIT continue to be applicable to CTIMIT as well as NTIMIT.

Content Copyright

Portions 1993, 1996 Trustees of the University of Pennsylvania