public void PcmToFloatAndBackTest()
{
for (int i = 0; i < 200; i++)
{
short sample = RandomPCMSample();
float floatResult = InputResampler.PCMtoFloat(sample);
int shortResult = InputResampler.FloatToPCM(floatResult);
int delta = Math.Abs(sample - shortResult);
Assert.IsTrue(delta < 2, "Conversion to float and back should be within one unit. Delta was {0}", delta);
}
}
private void HandleAudio(WaveInEventArgs args)
{
if (IsRecording && !isDisposed)
{
byte[] toEncode = args.Buffer;
int length = args.BytesRecorded;
if (length > 0)
{
if (waveIn.WaveFormat != codec.RecordFormat)
{
if (waveIn.WaveFormat.Encoding == WaveFormatEncoding.IeeeFloat)
{
var floatSamples = InputResampler.ReadIeeeWav(toEncode, args.BytesRecorded, waveIn.WaveFormat);
foreach (var sample in floatSamples)
{
aggregator.Add(sample);
}
toEncode = InputResampler.Resample(floatSamples, floatSamples.Length, waveIn.WaveFormat, codec.RecordFormat, out length);
}
else
{
for (int i = 0; i < args.BytesRecorded + 1; i += 2)
{
aggregator.Add(InputResampler.PCMtoFloat(toEncode, i / 2));
}
toEncode = InputResampler.Resample(toEncode, args.BytesRecorded, waveIn.WaveFormat, codec.RecordFormat, out length);
}
}
if (toEncode == null)
{
Console.WriteLine("Encode Error: Disabling input. Please choose another record format and report this bug..");
StopRecording();
}
else
{
if (CoughScalar < 1.0f)
{
InputResampler.ScalePCM16VolumeDb(ref toEncode, length, CoughScalar);
}
byte[] encoded = codec.Encode(toEncode, length);
if (encoded.Length > 0 && NetworkWPF.Client != null)
{
NetworkWPF.Client.SendAudio(codec.CodecID, encoded, encoded.Length);
}
}
}
}
}