asr-decoder

Name	asr-decoder JSON
Version	0.0.6 JSON
	download
home_page	https://github.com/pengzhendong/asr-decoder
Summary	ASR Decoder
upload_time	2024-10-20 14:25:49
maintainer	None
docs_url	None
author	Zhendong Peng
requires_python	None
license	None
keywords
VCS
bugtrack_url
requirements	torch
Travis-CI	No Travis.
coveralls test coverage	No coveralls.

            # asr-decoder

CTC decoder with hotwords for ASR models. Supports `ctc_greedy_search` and `ctc_prefix_bream_search` decoding methods.

## Usage

- ctc greedy search

``` python
from asr_decoder import CTCDecoder

decoder = CTCDecoder()
# ctc_probs: (sequence_length, vocab_size)
result = decoder.ctc_greedy_search(ctc_probs, is_last=True)
```

- ctc prefix beam search (with hotwords)

``` python
from asr_decoder import CTCDecoder

hotwords = ["停止"]
decoder = CTCDecoder(hotwords, symbol_table, bpemodel)
# ctc_probs: (sequence_length, vocab_size)
result = decoder.ctc_prefix_beam_search(ctc_probs, beam_size=3, is_last=True)
```



            

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