private static WaveStream CreateInputStream(string fileName, out WaveChannel32 waveChannel)
{
WaveStream readerStream = null;
if (fileName.EndsWith(".wav"))
{
readerStream = new WaveFileReader(fileName);
}
else if (fileName.EndsWith(".mp3"))
{
readerStream = new Mp3FileReader(fileName);
}
else
{
throw new InvalidOperationException("Unsupported extension");
}
// Provide PCM conversion if needed
if (readerStream.WaveFormat.Encoding != WaveFormatEncoding.Pcm)
{
readerStream = WaveFormatConversionStream.CreatePcmStream(readerStream);
readerStream = new BlockAlignReductionStream(readerStream);
}
// Provide conversion to 16 bits if needed
if (readerStream.WaveFormat.BitsPerSample != 16)
{
var format = new WaveFormat(readerStream.WaveFormat.SampleRate,
16, readerStream.WaveFormat.Channels);
readerStream = new WaveFormatConversionStream(format, readerStream);
}
waveChannel = new WaveChannel32(readerStream);
// **************************************************************************************
// Chain the DSP Equalizer Effect - DSP Equalizer must come AFTER WaveChannel32 because it
// was coded to expect Ieee Float samples, NOT PCM samples
m_eqEffect = new EqualizerEffect();
m_eqEffect.OnFactorChanges();
readerStream = new DSPEffectStream(waveChannel, m_eqEffect);
// **************************************************************************************
return(readerStream);
}
private static WaveStream CreateInputStream(string fileName, out WaveChannel32 waveChannel)
{
WaveStream readerStream = null;
if (fileName.EndsWith(".wav"))
{
readerStream = new WaveFileReader(fileName);
}
else if (fileName.EndsWith(".mp3"))
{
readerStream = new Mp3FileReader(fileName);
}
else
{
throw new InvalidOperationException("Unsupported extension");
}
// Provide PCM conversion if needed
if (readerStream.WaveFormat.Encoding != WaveFormatEncoding.Pcm)
{
readerStream = WaveFormatConversionStream.CreatePcmStream(readerStream);
readerStream = new BlockAlignReductionStream(readerStream);
}
// Provide conversion to 16 bits if needed
if (readerStream.WaveFormat.BitsPerSample != 16)
{
var format = new WaveFormat(readerStream.WaveFormat.SampleRate,
16, readerStream.WaveFormat.Channels);
readerStream = new WaveFormatConversionStream(format, readerStream);
}
waveChannel = new WaveChannel32(readerStream);
// **************************************************************************************
// Chain the DSP Equalizer Effect - DSP Equalizer must come AFTER WaveChannel32 because it
// was coded to expect Ieee Float samples, NOT PCM samples
m_eqEffect = new EqualizerEffect();
m_eqEffect.OnFactorChanges();
readerStream = new DSPEffectStream(waveChannel, m_eqEffect);
// **************************************************************************************
return readerStream;
}
