EngineX-Iluvatar/enginex_bi_series-sherpa-onnx
Archived
16
0
Fork 0
Code Issues Pull Requests Actions Projects Releases Wiki Activity

Fix for silero vad v5. (#1065)

Browse Source 
The network input is 64 + 512 samples instead of 512 samples for 16kHz.
This commit is contained in:
Fangjun Kuang
2024-06-30 08:57:23 +08:00
committed by GitHub
parent 61c7eb3063
commit 6cb018184e
3 changed files with 18 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
sherpa-onnx/csrc/silero-vad-model.cc
View File

@@ -74,9 +74,8 @@ class SileroVadModel::Impl {
}
bool IsSpeech(const float *samples, int32_t n) {
if (n != config_.silero_vad.window_size) {
SHERPA_ONNX_LOGE("n: %d != window_size: %d", n,
config_.silero_vad.window_size);
if (n != WindowSize()) {
SHERPA_ONNX_LOGE("n: %d != window_size: %d", n, WindowSize());
exit(-1);
}
@@ -146,9 +145,11 @@ class SileroVadModel::Impl {
return false;
}
int32_t WindowSize() const { return config_.silero_vad.window_size; }
int32_t WindowShift() const { return config_.silero_vad.window_size; }
int32_t WindowShift() const { return WindowSize() - window_shift_; }
int32_t WindowSize() const {
return config_.silero_vad.window_size + window_overlap_;
}
int32_t MinSilenceDurationSamples() const { return min_silence_samples_; }
@@ -177,9 +178,9 @@ class SileroVadModel::Impl {
// 64 for 16kHz
// 32 for 8kHz
window_shift_ = 64;
window_overlap_ = 64;
if (WindowSize() != 512) {
if (config_.silero_vad.window_size != 512) {
SHERPA_ONNX_LOGE(
"For silero_vad v5, we require window_size to be 512 for 16kHz");
exit(-1);
@@ -423,7 +424,7 @@ class SileroVadModel::Impl {
int32_t temp_start_ = 0;
int32_t temp_end_ = 0;
int32_t window_shift_ = 0;
int32_t window_overlap_ = 0;
bool is_v5_ = false;
};

7
sherpa-onnx/csrc/silero-vad-model.h
View File

@@ -37,11 +37,12 @@ class SileroVadModel : public VadModel {
*/
bool IsSpeech(const float *samples, int32_t n) override;
// For silero vad V4, it is WindowShift().
// For silero vad V5, it is WindowShift()+64 for 16kHz and
// WindowShift()+32 for 8kHz
int32_t WindowSize() const override;
// For silero vad V4, it is WindowSize().
// For silero vad V5, it is WindowSize()-64 for 16kHz and
// WindowSize()-32 for 8kHz
// 512
int32_t WindowShift() const override;
int32_t MinSilenceDurationSamples() const override;

6
sherpa-onnx/csrc/voice-activity-detector.cc
View File

@@ -44,13 +44,17 @@ class VoiceActivityDetector::Impl {
// an extra buffer here
last_.insert(last_.end(), samples, samples + n);
if (last_.size() < window_size) {
return;
}
// Note: For v4, window_shift == window_size
int32_t k =
(static_cast<int32_t>(last_.size()) - window_size) / window_shift + 1;
const float *p = last_.data();
bool is_speech = false;
for (int32_t i = 0; i != k; ++i, p += window_shift) {
for (int32_t i = 0; i < k; ++i, p += window_shift) {
buffer_.Push(p, window_shift);
// NOTE(fangjun): Please don't use a very large n.
bool this_window_is_speech = model_->IsSpeech(p, window_size);