Cellular TIMIT Speech Corpus
CTIMIT
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.
Institutions that have membership in the LDC during the 1996
Membership Year will be able to receive CTIMIT at no additional
charge, in the same manner as all other text and speech corpora
published by the LDC.
Nonmembers can receive a copy of CTIMIT for research purposes only for
a fee of $100. If you would like to order a copy of this corpus,
please email your request to ldc@unagi.cis.upenn.edu. If you need
additional information before placing your order, or would like to
inquire about membership in the LDC, please send email or call (215)
898-0464.
Further information about the LDC and its available corpora can be
accessed on the Linguistic Data Consortium WWW Home Page at URL
http://www.cis.upenn.edu/~ldc. Information is also available via ftp
at ftp.cis.upenn.edu under pub/ldc; for ftp access, please use
"anonymous" as your login name, and give your email address when asked
for password.