enveloper_v1.1 An example of graphical enveloping, using an oscilator version 1.1, november 2015 - linear or exponential envelope Usage: p4 = frequency, for example: i1 0 2 1200 ival = p4 ;frequency for oscilator ifreq getFrequency ival ;============linear or log===== if <loglin> == 1 then gi_env ftgenonce 0, 0, 1024, 7, <table_envelope> prints "using the linear envelope\n" else gi_env ftgenonce 0, 0, 1024, 5, <table_envelope> prints "using the exponential envelope\n" endif ;=======oscilator================== kenv oscili 1, 1/p3, gi_env ;produce envelope using oscili aout poscil 1, ifreq ain = aout * kenv aout declick ain outs aout, aout 15 15 NONE false table 81 65 1200 160 1024.0 true Comma false false 85 290 treat envelope as 59 11 <html><font size="+3">Enveloper</font></html> loglin 204 288 false linear 1 exponential 2 0 true 0.98999995 0.01 0.76 0.57 0.35999998 0.21 0.13 0.099999994 0.099999994 0.07 declick a a ain xin aenv linseg 0, 0.01, 1, p3 - 0.03, 1, 0.02, 0, 0.01, 0 xout ain * aenv ; apply envelope and write output declick - removes clicks from signal start and end DESCRIPTION Given a signal, it will DeClick will apply an envelope to it to ensure there is no clicking at the start or end of the sound (Taken from the Csound Reference Manual) SYNTAX aout declick ain INITIALIZATION null PERFORMANCE ain - signal to declick aout - declicked signal CREDITS Author: Istvan Varga getFrequency i i ipch xin iout = (ipch < 15 ? cpspch(ipch) : ipch) xout iout getFrequency - Returns frequency whether being passed in pch or frequency DESCRIPTION Returns frequency whether being passed in PCH notation or frequency. This code is commonly found in instruments designed to take in either pch or frequency values. Assumes that values lower than 15 are pch, and those higher than that are frequency. SYNTAX ifreq getFrequency ival INITIALIZATION ival - input value, either pch or frequency ifreq - output frequency PERFORMANCE null CREDITS Steven Yi