private async void Button_Click(object sender, RoutedEventArgs e)
{
soundOut = await AudioGraphOutput.CreateAudioGraphOutput(2, SampleRate);
source = new SinusoidSource(new SampleFormat(2, 44100))
{
Frequency = 436
};
resampler = new SplineResampler(source, SampleRate);
soundOut.Initialize(new SampleToFloat32Converter(resampler));
soundOut.Play();
}
public void DownSamplingDoesNotThrow()
{
const int Channels = 3;
const int SourceSampleRate = 48000;
const int DestinationSampleRate = 44100;
var src = new SinusoidSource(new SampleFormat(Channels, SourceSampleRate))
{
Frequency = 20000
};
var resampler = new SplineResampler(src, DestinationSampleRate);
var buffer = new float[Channels * 1024];
Assert.DoesNotThrow(() =>
{
resampler.Read(buffer);
});
}
public void UpSamplingFrameDump()
{
const int SourceSampleRate = 44100;
const int DestinationSampleRate = 192000;
var src = new SinusoidSource(new SampleFormat(1, SourceSampleRate))
{
Frequency = 6000
};
var resampler = new SplineResampler(src, DestinationSampleRate);
var buffer = new float[256];
resampler.Read(buffer); //Trash the data because the first one contains transient part.
resampler.Read(buffer);
foreach (var item in buffer)
{
Console.WriteLine(item);
}
Assert.Pass();
}
