public IEnumerable <ISampleProvider> CreateArpeggioSamples(IEnumerable <int> chordKeyNumbers, int length, double speed)
{
if (!chordKeyNumbers.Any())
{
return(null);
}
List <ISampleProvider> arpeggioInputs = new List <ISampleProvider>();
for (int i = 0; i <= length; i++)
{
foreach (var num in chordKeyNumbers)
{
var squareWave = new SignalGenerator()
{
Gain = 0.12,
Frequency = MusicalMathHelper.CalculateFrequency(num, 4),
Type = SignalGeneratorType.Square
};
var trimmed = new OffsetSampleProvider(squareWave);
var trimmedWithTimeSpan = trimmed.Take(TimeSpan.FromSeconds(speed));
arpeggioInputs.Add(trimmedWithTimeSpan);
}
}
return(arpeggioInputs);
}
public void PlayKey(int keyNumber)
{
var squareWave = new SignalGenerator()
{
Gain = 0.12,
Frequency = MusicalMathHelper.CalculateFrequency(keyNumber, 4),
Type = SignalGeneratorType.Square
};
var trimmed = new OffsetSampleProvider(squareWave);
var trimmedWithTimeSpan = trimmed.Take(TimeSpan.FromSeconds(0.4));
WaveformPlayer.Instance.PlayWaveform(trimmedWithTimeSpan);
}