/// <summary>
/// Create a low pass filter
/// </summary>
public static BiQuadFilter LowPassFilter(float sampleRate, float cutoffFrequency, float q)
{
var filter = new BiQuadFilter();
filter.SetLowPassFilter(sampleRate, cutoffFrequency, q);
return(filter);
}
public void SetLowpassMode(float cutoff)
{
Mode = FrequencyFilterMode.Lowpass;
CutoffLow = cutoff;
if (filter != null)
{
filter.SetLowPassFilter(Format.SampleRate, cutoff, 1);
}
else
{
filter = BiQuadFilter.LowPassFilter(Format.SampleRate, cutoff, 1);
}
}
