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--- |
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license: apache-2.0 |
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language: |
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- ko |
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pipeline_tag: automatic-speech-recognition |
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tags: |
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- icefall |
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--- |
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See https://github.com/k2-fsa/icefall/pull/1664 |
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# icefall-asr-ksponspeech-zipformer-2024-06-24 |
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KsponSpeech is a large-scale spontaneous speech corpus of Korean. |
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This corpus contains 969 hours of open-domain dialog utterances, |
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spoken by about 2,000 native Korean speakers in a clean environment. |
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All data were constructed by recording the dialogue of two people |
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freely conversing on a variety of topics and manually transcribing the utterances. |
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The transcription provides a dual transcription consisting of orthography and pronunciation, |
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and disfluency tags for spontaneity of speech, such as filler words, repeated words, and word fragments. |
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The original audio data has a pcm extension. |
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During preprocessing, it is converted into a file in the flac extension and saved anew. |
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KsponSpeech is publicly available on an open data hub site of the Korea government. |
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The dataset must be downloaded manually. |
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For more details, please visit: |
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- Dataset: https://aihub.or.kr/aihubdata/data/view.do?currMenu=115&topMenu=100&aihubDataSe=realm&dataSetSn=123 |
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- Paper: https://www.mdpi.com/2076-3417/10/19/6936 |
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### zipformer (Zipformer + pruned statelss transducer) |
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#### [zipformer](./zipformer) |
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Number of model parameters: 74,778,511, i.e., 74.78 M |
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##### Training on KsponSpeech (with MUSAN) |
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The CERs are: |
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| decoding method | eval_clean | eval_other | comment | |
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|----------------------|------------|------------|---------------------| |
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| greedy search | 10.60 | 11.56 | --epoch 30 --avg 9 | |
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| fast beam search | 10.59 | 11.54 | --epoch 30 --avg 9 | |
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| modified beam search | 10.35 | 11.35 | --epoch 30 --avg 9 | |
