A Biquadratic Peaking Filter
(?signal,?f1,0.5,48)BiquadPeak Normalise !signal1
(?signal1,?f1,0.5,48)BiquadPeak Normalise !signal1
(?signal1,?f1,0.2,48)BiquadPeak Normalise !signal1
The above will make a tone like sounds form white noise.
(?signal,?centre-frequency,?q,?gain)BiquadPeak
BiquadPeak is an IIR filter which filters just a peak. It is different form BandPass in that BandPass produces clean linearly slowed sides to the pass bands when graphed in DBs. Peak produces a sigmoidal side. The peak width can be very narrow or very broad, this is controlled by q. ?gain controls the amount the top/center of the peak is in increased amplitude compared to signal at a arbitrary distance from the that centre. The centre is naturally controlled bu centre-frequency.
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