Mixer 3 Speech

Mixer 3 Speech was developed by the Linguistic Data Consortium (LDC) and comprises 3,200 hours of audio recordings of conversational telephone speech involving 3,875 speakers and 26 distinct languages. This material was collected by LDC from 2005-2007 as part of the Mixer project, and recordings in this corpus were used in NIST Speaker Recognition Evaluation (SRE) and NIST Language Recognition Evaluation (LRE) corpora, including 2006 SRE and 2007 LRE. Researchers interested in applying those benchmark test sets should consult the respective NIST Evaluation Plans for guidelines on allowable training data for those tests. Data from 2006 SRE and 2007 LRE are available in the LDC Catalog: 2006 NIST Speaker Recognition Evaluation Training Set (LDC2011S09), 2006 NIST Speaker Recognition Evaluation Test Set Part 1 (LDC2011S10), 2006 NIST Speaker Recognition Evaluation Test Set Part 2 (LDC2012S01), 2007 NIST Language Recognition Evaluation Supplemental Training Set (LDC2009S05) and 2007 NIST Language Recognition Evaluation Test Set (LDC2009S04).