waveset — A simple time stretch by repeating cycles.


A simple time stretch by repeating cycles.


ares waveset ain, krep [, ilen]


ilen (optional, default=0) -- the length (in samples) of the audio signal. If ilen is set to 0, it defaults to half the given note length (p3).


ain -- the input audio signal.

krep -- the number of times the cycle is repeated.

The input is read and each complete cycle (two zero-crossings) is repeated krep times.

There is an internal buffer as the output is clearly slower that the input. Some care is taken if the buffer is too short, but there may be strange effects.


Here is an example of the waveset opcode. It uses the file waveset.csd.

Example 1236. Example of the waveset opcode.

See the sections Real-time Audio and Command Line Flags for more information on using command line flags.

; Select audio/midi flags here according to platform
-odac    ;;;realtime audio out
;-iadc    ;;;uncomment -iadc if realtime audio input is needed too
; For Non-realtime ouput leave only the line below:
; -o waveset.wav -W ;;; for file output any platform

sr = 44100
ksmps = 32
nchnls = 2
0dbfs   =1

instr 1

krep init p4
asig soundin "flute.aiff"
aout waveset asig, krep
     outs aout, aout

i 1 0 3 1	;no repetitions
i 1 + 10 3	;stretching 3 times
i 1 + 14 6	;6 times


See also

Sample Playback


Author: John ffitch
February 2001

New in version 4.11