The Switchboard dataset, specifically the Switchboard-1 Telephone Speech Corpus (LDC97S62), is used for automatic speech recognition. It consists of approximately 260 hours of speech, collected by Texas Instruments in 1990-1991, under DARPA sponsorship. The corpus contains labels for 1155 5-minute conversations, comprising 205,000 utterances and 1.4 million words. It is also used for speaker identification and contains English language data.
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