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修复CalculateProb方法计算句子EndOffset的bug

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This commit is contained in:
dongfp
2025-11-10 15:58:20 +08:00
parent be95df9152
commit 7b0aaa1c4c
4 changed files with 233 additions and 211 deletions
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40
examples/csharp/SileroVadDetector.cs
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@@ -53,28 +53,26 @@ public class SileroVadDetector
{
Reset();
using (var audioFile = new AudioFileReader(wavFile.FullName))
using var audioFile = new AudioFileReader(wavFile.FullName);
List<float> speechProbList = [];
this._audioLengthSamples = (int)(audioFile.Length / 2);
float[] buffer = new float[this._windowSizeSample];
while (audioFile.Read(buffer, 0, buffer.Length) > 0)
{
List<float> speechProbList = new List<float>();
this._audioLengthSamples = (int)(audioFile.Length / 2);
float[] buffer = new float[this._windowSizeSample];
while (audioFile.Read(buffer, 0, buffer.Length) > 0)
{
float speechProb = _model.Call(new[] { buffer }, _samplingRate)[0];
speechProbList.Add(speechProb);
}
return CalculateProb(speechProbList);
float speechProb = _model.Call([buffer], _samplingRate)[0];
speechProbList.Add(speechProb);
}
return CalculateProb(speechProbList);
}
private List<SileroSpeechSegment> CalculateProb(List<float> speechProbList)
{
List<SileroSpeechSegment> result = new List<SileroSpeechSegment>();
List<SileroSpeechSegment> result = [];
bool triggered = false;
int tempEnd = 0, prevEnd = 0, nextStart = 0;
SileroSpeechSegment segment = new SileroSpeechSegment();
SileroSpeechSegment segment = new();
for (int i = 0; i < speechProbList.Count; i++)
{
@@ -164,7 +162,8 @@ public class SileroVadDetector
if (segment.StartOffset != null && (_audioLengthSamples - segment.StartOffset) > _minSpeechSamples)
{
segment.EndOffset = _audioLengthSamples;
//segment.EndOffset = _audioLengthSamples;
segment.EndOffset = speechProbList.Count * _windowSizeSample;
result.Add(segment);
}
@@ -182,7 +181,7 @@ public class SileroVadDetector
int silenceDuration = nextItem.StartOffset.Value - item.EndOffset.Value;
if (silenceDuration < 2 * _speechPadSamples)
{
item.EndOffset = item.EndOffset + (silenceDuration / 2);
item.EndOffset += (silenceDuration / 2);
nextItem.StartOffset = Math.Max(0, nextItem.StartOffset.Value - (silenceDuration / 2));
}
else
@@ -200,9 +199,9 @@ public class SileroVadDetector
return MergeListAndCalculateSecond(result, _samplingRate);
}
private List<SileroSpeechSegment> MergeListAndCalculateSecond(List<SileroSpeechSegment> original, int samplingRate)
private static List<SileroSpeechSegment> MergeListAndCalculateSecond(List<SileroSpeechSegment> original, int samplingRate)
{
List<SileroSpeechSegment> result = new List<SileroSpeechSegment>();
List<SileroSpeechSegment> result = [];
if (original == null || original.Count == 0)
{
return result;
@@ -216,7 +215,10 @@ public class SileroVadDetector
for (int i = 1; i < original.Count; i++)
{
SileroSpeechSegment segment = original[i];
if (i == 235)
{
}
if (segment.StartOffset > right)
{
result.Add(new SileroSpeechSegment(left, right,
@@ -242,7 +244,7 @@ public class SileroVadDetector
return result;
}
private float CalculateSecondByOffset(int offset, int samplingRate)
private static float CalculateSecondByOffset(int offset, int samplingRate)
{
float secondValue = offset * 1.0f / samplingRate;
return (float)Math.Floor(secondValue * 1000.0f) / 1000.0f;