/// <summary> /// Create a bandpass filter with constant skirt gain /// </summary> public static BiQuadFilter BandPassFilterConstantSkirtGain(float sampleRate, float centreFrequency, float q) { var filter = new BiQuadFilter(); filter.SetBandPassFilter(sampleRate, centreFrequency, q); return(filter); }
public void SetBandpassMode(float cutoffLow, float cutoffHigh) { Mode = FrequencyFilterMode.Bandpass; CutoffLow = cutoffLow; CutoffHigh = cutoffHigh; float center = cutoffLow + ((cutoffHigh - cutoffLow) / 2); float q = center / (cutoffHigh - cutoffLow); if (filter != null) { filter.SetBandPassFilter(Format.SampleRate, center, q); } else { filter = BiQuadFilter.BandPassFilterConstantSkirtGain(Format.SampleRate, center, q); } }