public void SOXResamplerConstructorTest()
{
AudioPCMConfig inputPCM = new AudioPCMConfig(32, 1, 44100);
AudioPCMConfig outputPCM = new AudioPCMConfig(32, 1, 48000);
SOXResamplerConfig cfg;
cfg.Quality = SOXResamplerQuality.Very;
cfg.Phase = 50;
cfg.AllowAliasing = false;
cfg.Bandwidth = 0;
SOXResampler resampler = new SOXResampler(inputPCM, outputPCM, cfg);
AudioBuffer src = new AudioBuffer(inputPCM, 400 * inputPCM.SampleRate / 1000);
AudioBuffer dst = new AudioBuffer(outputPCM, src.Size * 3);
int offs = 0;
double delta = 0;
for (int i = 0; i < 100; i++)
{
src.Prepare(-1);
for (int j = 0; j < src.Size; j++)
src.Float[j, 0] = (float)Math.Sin((i * src.Size + j) * Math.PI / 44100);
src.Length = src.Size;
resampler.Flow(src, dst);
for (int j = 0; j < dst.Length; j++)
delta += dst.Float[j, 0] - Math.Sin((offs + j) * Math.PI / 48000);
offs += dst.Length;
}
Assert.IsTrue(Math.Abs(delta) < 0.00001, "Error too large");
}
public void Init(frmCUEPlayer parent)
{
MdiParent = parent;
_device = WasapiOut.GetDefaultAudioEndpoint();
_device.AudioEndpointVolume.OnVolumeNotification += new AudioEndpointVolumeNotificationDelegate(AudioEndpointVolume_OnVolumeNotification);
mediaSliderVolume.Value = (int)(_device.AudioEndpointVolume.MasterVolumeLevelScalar * 100);
//mediaSliderVolume.Maximum = (int)(_device.AudioEndpointVolume.VolumeRange);
Show();
int delay = 100;
try
{
_player = new WasapiOut(_device, NAudio.CoreAudioApi.AudioClientShareMode.Shared, true, delay, new AudioPCMConfig(32, 2, 44100));
}
catch
{
_player = null;
}
if (_player == null)
{
try
{
_player = new WasapiOut(_device, NAudio.CoreAudioApi.AudioClientShareMode.Shared, true, delay, new AudioPCMConfig(32, 2, 48000));
SOXResamplerConfig cfg;
cfg.Quality = SOXResamplerQuality.Very;
cfg.Phase = 50;
cfg.AllowAliasing = false;
cfg.Bandwidth = 0;
_resampler = new SOXResampler(parent.Mixer.PCM, _player.PCM, cfg);
resampled = new AudioBuffer(_player.PCM, parent.Mixer.BufferSize * 2 * parent.Mixer.PCM.SampleRate / _player.PCM.SampleRate);
}
catch (Exception ex)
{
_player = null;
Trace.WriteLine(ex.Message);
}
}
parent.Mixer.AudioRead += new EventHandler<AudioReadEventArgs>(Mixer_AudioRead);
if (_player != null)
_player.Play();
}
