The 2001 NIST Speaker Recognition Evaluation Corpus was produced by the Linguistic Data Consortium (LDC) catalog number LDC2002S34 and ISBN 1-58563-241-4.
The 2001 NIST Speaker Recognition Evaluation is part of an ongoing series of yearly evaluations conducted by NIST. These evaluations provide an important contribution to the direction of research efforts and the calibration of technical capabilities. They are intended to be of interest to all researchers working on the general problem of text independent speaker recognition. To this end the evaluation was designed to be simple, to focus on core technology issues, to be fully supported, and to be accessible.
The corpus is based entirely on conversational cellular telephone speech collected by the LDC.
Supporting documentation for this evaluation may be found on the 2001 NIST Speaker Recognition Evaluation website. Consult the NIST evaluation plan for detailed instructions on using this evaluation material.
The files are divided into evaluation and development data. There are a total of 2,350 compressed speech files, all of which are in sphere format. The sphere files are compressed and encoded in one channel 8-bit mulaw, for a total of 575,337,198 bytes (548.7 Mbytes), or 26 hours of sphere data.
The evaluation data is divided into evaluation training data and evaluation test data. The training data consists of 174 speech files that are two minutes long. The test data comprises 2,038 speech files of varying lengths not exceeding sixty seconds.
The development data is similarly divided into development training data and development test data. The training data comprises 60 speech files with durations of two minutes per target speaker. The 78 development test data files contain segments of varying length not exceeding 60 seconds.
No updates are available at this time.
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