public void TestEnabled() {
var vad = new VoiceActivityDetector(SAMPLE_RATE);
vad.Enabled = false;
var inputStream = ReadFileFromResource("speech.raw");
speechEnd = false;
speechBegin = false;
vad.SpeechBegin += () => {speechBegin = true; };
vad.SpeechEnd += () => {speechEnd = true; };
ProcessStream(vad, inputStream);
Assert.IsTrue(speechBegin);
Assert.IsFalse(speechEnd);
}
public void TestSpeechDetect(){
var vad = new VoiceActivityDetector(SAMPLE_RATE);
var inputStream = ReadFileFromResource("speech.raw");
speechEnd = false;
speechBegin = false;
speechNotDetected = false;
vad.SpeechBegin += () => {speechBegin = true; };
vad.SpeechEnd += () => {speechEnd = true; };
vad.SpeechNotDetected += () => {speechNotDetected = true; };
ProcessStream(vad, inputStream);
Assert.IsTrue(speechBegin);
Assert.IsTrue(speechEnd);
Assert.IsFalse(speechNotDetected);
Assert.IsTrue(vad.SpeechBeginTime > 800 && vad.SpeechBeginTime < 950, "vad.SpeechBeginTime " + vad.SpeechBeginTime);
Assert.IsTrue(vad.SpeechEndTime > 2400 && vad.SpeechEndTime < 2900, "vad.SpeechEndTime " + vad.SpeechEndTime);
}
static void ProcessStream(VoiceActivityDetector vad, Stream inputStream)
{
var bufferSize = 3000 + new Random().Next(200);
var buffer = new byte[bufferSize];
int bytesRead = 0;
bytesRead = inputStream.Read(buffer, 0, bufferSize);
while (bytesRead > 0)
{
vad.ProcessBufferEx(buffer, bytesRead);
bufferSize = 3000 + new Random().Next(200);
buffer = new byte[bufferSize];
bytesRead = inputStream.Read(buffer, 0, bufferSize);
}
}