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flt.c_apf

flt.c_apf calculates biquad coefficients for an all-pass filter, outputting the list b0 b1 b2 a1 a2. Its center frequency can be specified in hertz with @freq (0–22050 Hz), or as angular frequency using @rad; the quality factor is controlled by @q, and the bw method sets bandwidth in octaves.

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  • Download via Deken.

    Open Pd and go to ToolsFind Externals. Search for ceammc and install it. Then create an object with declare -lib ceammc -path ceammc. Finally, use flt.c_apf or any other object from ceammc.

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