private static float[][] ConvertWaveDataToFloatArrays(byte[] waveData, ref WavePCMParser.WaveInfo waveInfo)
{
float[][] channelsData = new float[waveInfo.channels][];
for (int i = 0; i < waveInfo.channels; ++i)
{
channelsData[i] = new float[waveInfo.samplesCount];
}
int index = waveInfo.sectionData.indexDataStart;
int sampleIndex = 0;
while (index < waveInfo.sectionData.size)
{
foreach (var channelData in channelsData)
{
// конвертирование в диапазоне от 1f до -1f
channelData[sampleIndex] = BitConverter.ToInt16(waveData, index) / _normalizeCoeff;
index += waveInfo.bytesPerSample;
}
sampleIndex++;
}
return(channelsData);
}
public static void ConvertFloatArraysToWaveData(byte[] waveData, ref WavePCMParser.WaveInfo waveInfo, float[][] channelsData)
{
int index = waveInfo.sectionData.indexDataStart;
for (int i = 0; i < waveInfo.samplesCount; ++i)
{
foreach (var channelData in channelsData)
{
short s = (short)(channelData[i] * _normalizeCoeff);
waveData[index++] = (byte)(s & 0xFF);
waveData[index++] = (byte)(s >> 8);
}
}
}