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Fix nnet3 endpointing to correctly use frame subsampling factor (#1184) #1196

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Merged
danpovey merged 2 commits into from
Nov 16, 2016
Merged

Fix nnet3 endpointing to correctly use frame subsampling factor (#1184) #1196

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465b73c
Fix nnet3 endpointing to correctly use frame subsampling factor (#1184)
Nov 15, 2016
d1aca1a
Change FrameSubsamplingFactor() to non-virtual
Nov 16, 2016
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1 change: 1 addition & 0 deletions src/nnet3/online-nnet3-decodable-simple.h
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Original file line number Diff line number Diff line change
Expand Up @@ -102,6 +102,7 @@ class DecodableNnet3SimpleOnline: public DecodableInterface {
/// Indices are one-based! This is for compatibility with OpenFst.
virtual int32 NumIndices() const { return trans_model_.NumTransitionIds(); }

int32 FrameSubsamplingFactor() const { return opts_.frame_subsampling_factor; }
private:

/// If the neural-network outputs for this frame are not cached, it computes
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3 changes: 2 additions & 1 deletion src/online2/online-nnet3-decoding.cc
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Expand Up @@ -72,8 +72,9 @@ void SingleUtteranceNnet3Decoder::GetBestPath(bool end_of_utterance,

bool SingleUtteranceNnet3Decoder::EndpointDetected(
const OnlineEndpointConfig &config) {
int32 subsample = decodable_.FrameSubsamplingFactor();
return kaldi::EndpointDetected(config, tmodel_,
feature_pipeline_->FrameShiftInSeconds(),
feature_pipeline_->FrameShiftInSeconds() * subsample,
decoder_);
}

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