|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
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.
Portions © 1993, 1996 Trustees of the University of Pennsylvania