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KU-AGI/
CC3M_dualcodec_pretokenize

automatic-speech-recognition

text-to-speech

cc-by-nc-4.0

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CC3M spoken captions (image–speech) — DualCodec pre-tokenized

DualCodec (12 Hz) pre-tokenized speech for omni speech–vision MLLM training. Source: Conceptual Captions 3M (filtered); speech synthesized with CosyVoice2.

	Contents (train split)

Total samples ≈ 500,000 (image–caption–speech triples)

Total audio ≈ 735 hours

WebDataset shards see repo (.tar)

Mean / median duration 5.29s / 4.92s

p90 / max duration 8.08s / 25.67s

Length cap 30s… See the full description on the dataset page: https://huggingface.co/datasets/KU-AGI/CC3M_dualcodec_pretokenize.