Datasets ready to license.

Hindi and Tamil full-duplex conversation data: 1,265 two-channel call-centre calls with each speaker on a separate channel, overlaps, backchannels and turn timing preserved, transcripts time-aligned per channel. 264 hours.

Tamil speaker diarization data: whole call-centre and everyday two-speaker conversations with every speaker turn marked, 345,825 turns in RTTM, for training and scoring who spoke when. 229 hours across 1,307 recordings.

Tamil speech recognition data: 157,231 single-speaker utterance clips of conversational Tamil, call-centre and everyday, each with its own time-aligned transcript in Tamil script, English words kept as spoken. 201 hours of audio, 1,748,023 transcribed words.

Two-speaker general conversation in Tamil, recorded on one channel with speakers labelled. 105 hours. Transcripts are time-aligned and written in Tamil script, with English words kept as spoken.

Call-centre conversations in Tamil, consumer surveys, recorded on one channel with speakers labelled. 99 hours. Transcripts are time-aligned and written in Tamil script, with English words kept as spoken.

Scripted call-centre conversations in Tamil, telecom, delivery, e-commerce and banking, recorded with each speaker on a separate channel. 25 hours. Transcripts are time-aligned and written in Tamil script, with English words kept as spoken. Layouts across the set: 2 one side of a call, 132 two-channel.