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bugfix：stream在--use-vad模式下，送入模型的数据多除了一个32768。 #105

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Merged
Ivy233 merged 1 commit into from
Dec 19, 2025
Merged

bugfix：stream在--use-vad模式下，送入模型的数据多除了一个32768。 #105

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16 changes: 8 additions & 8 deletions examples/stream/stream.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,7 @@ struct sense_voice_stream_params {
int32_t n_threads = std::min(4, (int32_t) std::thread::hardware_concurrency());
int32_t n_processors = 1;
int32_t capture_id = -1;
int32_t chunk_size = 100; // ms
int32_t chunk_size = 50; // ms
int32_t max_nomute_chunks = 8000 / chunk_size;// chunks
int32_t min_mute_chunks = 1000 / chunk_size; // chunks

Expand Down Expand Up @@ -374,16 +374,16 @@ int main(int argc, char **argv) {
int actual_chunk_size = n_sample_step;
int vad_chunk_size = std::max(640, actual_chunk_size);
std::vector<float> vad_chunk(vad_chunk_size, 0);

int start_idx = i - idenitified_floats;

// 确保不越界访问
for (int j = 0; j < actual_chunk_size && start_idx + j < pcmf32.size(); j++) {
if (start_idx + j >= 0) {
vad_chunk[j] = static_cast<float>(pcmf32[start_idx + j]) / 32768.0f;
vad_chunk[j] = static_cast<float>(pcmf32[start_idx + j]);
}
}

// 如果实际chunk小于640，用最后一个样本值填充
if (actual_chunk_size < 640) {
float last_sample = (actual_chunk_size > 0) ? vad_chunk[actual_chunk_size - 1] : 0.0f;
Expand All @@ -396,9 +396,9 @@ int main(int argc, char **argv) {
if (silero_vad_encode_internal(*ctx, *ctx->state, vad_chunk, params.n_threads, speech_prob)) {
isnomute = (speech_prob >= params.speech_prob_threshold);
// 调试信息：显示VAD结果
// if (speech_prob > 0.1) { // 只显示有意义的概率
// fprintf(stderr, "VAD: prob=%.3f, threshold=%.3f, isnomute=%d\n",
// speech_prob, params.threshold, isnomute);
// if (i <= 256000) { // 只显示有意义的概率
// fprintf(stderr, "VAD: prob=%.3f, threshold=%.3f, isnomute=%d, L_new_chunk=%d, R_new_chunk=%d, i=%d\n",
// speech_prob, params.speech_prob_threshold, isnomute, L_new_chunk, R_new_chunk, i);
// }
} else {
// 如果 VAD 处理失败，回退到vad_energy_zcr函数
Expand Down
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