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[ctc]fix false rejection result from long time silence. (#149)

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* [ctc]fix false rejection result from long time silence.

* fix list index out of range.

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Co-authored-by: dujing <dujing@xmov.ai>
This commit is contained in:
Jean Du 2023-10-09 17:34:36 +08:00 committed by GitHub
parent 58859d580d
commit 059fd87a8f
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1 changed files with 9 additions and 0 deletions
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9
wekws/bin/stream_kws_ctc.py
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@ -481,6 +481,15 @@ class KeyWordSpotter(torch.nn.Module):
# update frame offset
self.total_frames += len(probs) * self.downsampling
# For streaming kws, the cur_hyps should be reset if the time of
# a possible keyword last over the max_frames value you set.
# see this issue:https://github.com/duj12/kws_demo/issues/2
if len(self.cur_hyps) > 0 and len(self.cur_hyps[0][0]) > 0:
keyword_may_start = int(self.cur_hyps[0][1][2][0]['frame'])
if (self.total_frames - keyword_may_start) > self.max_frames:
self.reset()
return self.result
def reset(self):