shaker — Sounds like the shaking of a maraca or similar gourd instrument.
Audio output is a tone related to the shaking of a maraca or similar gourd instrument. The method is a physically inspired model developed from Perry Cook, but re-coded for Csound.
idecay -- If present indicates for how long at the end of the note the shaker is to be damped. The default value is zero.
A note is played on a maraca-like instrument, with the arguments as below.
kamp -- Amplitude of note.
kfreq -- Frequency of note played.
kbeans -- The number of beans in the gourd. A value of 8 seems suitable.
kdamp -- The damping value of the shaker. Values of 0.98 to 1 seems suitable, with 0.99 a reasonable default.
ktimes -- Number of times shaken.
Note | |
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The argument knum was redundant, so it was removed in version 3.49. |
Here is an example of the shaker opcode. It uses the file shaker.csd.
Example 425. Example of the shaker opcode.
See the sections Real-time Audio and Command Line Flags for more information on using command line flags.
<CsoundSynthesizer> <CsOptions> ; Select audio/midi flags here according to platform ; Audio out Audio in No messages -odac -iadc -d ;;;RT audio I/O ; For Non-realtime ouput leave only the line below: ; -o shaker.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Initialize the global variables. sr = 22050 kr = 2205 ksmps = 10 nchnls = 1 ; Instrument #1 instr 1 a1 shaker 10000, 440, 8, 0.999, 100, 0 out a1 endin </CsInstruments> <CsScore> i 1 0 1 e </CsScore> </CsoundSynthesizer>