STKBandedWG — STKBandedWG uses banded waveguide techniques to model a variety of sounds.
This opcode uses banded waveguide techniques to model a variety of sounds, including bowed bars, glasses, and bowls.
asignal STKBandedWG ifrequency, iamplitude, [kc1, kv1[, kc2, kv2[, kc3, kv3[, kc4, kv4[, kc5, kv5[, kc6, kv6[, kc7, kv7]]]]]]]
ifrequency -- Frequency of note played, in Hertz.
iamplitude -- Amplitude of note played (range 0-1).
kc1, kv1, kc2, kv2, kc3, kv3, kc4, kv4, kc5, kv5, kc6, kv6, kc7, kv7, kc8, kv8 -- Up to 8 optional k-rate controller pairs for the STK opcodes. Each controller pair consists of a controller number (kc) followed by a controller value (kv). The 7 controller numbers and values that work for STKBandedWG are:
kc, kv -- 2, pressure of bow.
kc, kv -- 4, motion of bow.
kc, kv -- 11, speed of low-frequency oscillator.
kc, kv -- 1, depth of low-frequency oscillator.
kc, kv -- 128, velocity of bow.
kc, kv -- 64, striking of bow.
kc, kv -- 16, instrument presets (0 = uniform bar, 1 = tuned bar, 2 = glass harmonica, 3 = Tibetan bowl).
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The code for this opcode is taken directly from the BandedWG class in the Synthesis Toolkit in C++ by Perry R. Cook and Gary P. Scavone. More on the STK classes can be found here: https://ccrma.stanford.edu/software/stk/classes.html |
Here is an example of the STKBandedWG opcode. It uses the file STKBandedWG.csd.
Example 765. Example of the STKBandedWG opcode.
<CsoundSynthesizer> <CsOptions> ; Select audio/midi flags here according to platform -odac ;;;RT audio out ;-iadc ;;;uncomment -iadc if RT audio input is needed too ; For Non-realtime ouput leave only the line below: ; -o STKBandedWG.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> sr = 44100 ksmps = 32 nchnls = 2 0dbfs = 1 instr 1 ifrq = p4 kblw line p5, p3, p6 kenv line 1, p3, 0 asig STKBandedWG cpspch(ifrq), 1, 2, p5, 4, 100, 11, 0, 1, 0, 64, 100, 128, 120, 16, 2 asig = asig * kenv ;envelope outs asig, asig endin </CsInstruments> <CsScore> i 1 0 10 5.00 100 0 i 1 2 8 6.03 10 . i 1 5 5 7.05 50 127 e </CsScore> </CsoundSynthesizer>