/// <summary>
/// 8 bites mono hangfájl beolvasására szolgál.
/// </summary>
public static byte[] Rgsample8bit(string fpat, int?ofreqSample = null)
{
var wave = new WavInFile(fpat);
if (ofreqSample != null && wave.GetSampleRate() != ofreqSample)
{
throw new Exception("nem " + ofreqSample.Value + "Hz-es");
}
if (wave.GetNumChannels() != 1)
{
throw new Exception("nem mono");
}
if (wave.GetNumBits() != 8)
{
throw new Exception("nem 8 bites");
}
var n = wave.GetNumSamples();
var rgsample = new byte[n];
wave.Read(rgsample, n);
Debug.Assert(wave.Eof());
wave.Dispose();
return(rgsample);
}
public static short[][] Rgsample16bit(string fpat, int?ofreq = null, int?occhannel = null)
{
var wave = new WavInFile(fpat);
if (wave.GetNumBits() != 16)
{
throw new Exception("nem 16 bites");
}
if (ofreq != null && wave.GetSampleRate() != ofreq)
{
throw new Exception("nem " + ofreq + " frekvenciájú");
}
if (occhannel != null && wave.GetNumChannels() != occhannel)
{
throw new Exception("nem " + occhannel + " csatornás");
}
var n = wave.GetNumSamples();
var cchannel = wave.GetNumChannels();
var rgsample = new short[n * cchannel];
wave.Read(rgsample, rgsample.Length);
Debug.Assert(wave.Eof());
var rgrgsample = new short[cchannel][];
for (int ichannel = 0; ichannel < cchannel; ichannel++)
{
rgrgsample[ichannel] = new short[n];
}
for (var isample = 0; isample < n; isample++)
{
for (int ichannel = 0; ichannel < cchannel; ichannel++)
{
rgrgsample[ichannel][isample] = rgsample[isample * cchannel + ichannel];
}
}
wave.Dispose();
return(rgrgsample);
}
