outs

Writes stereo audio data to an external device or stream.

Syntax

outs asig1, asig2

Performance

Sends stereo audio samples to an accumulating output buffer (created at the beginning of performance) which serves to collect the output of all active instruments before the sound is written to disk. There can be any number of these output units in an instrument.

The type (mono, stereo, quad, hex, or oct) should agree with nchnls. But as of version 3.50, Csound will attempt to change an incorrect opcode to agree with the nchnls statement. Opcodes can be chosen to direct sound to any particular channel: outs1 sends to stereo channel 1, outq3 to quad channel 3, etc.

Examples

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

<CsoundSynthesizer>
<CsOptions>
; 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 outs.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

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

instr 1

asig vco2 .01, 110      ; sawtooth waveform at low volume
;filter a channel
kcut1 line 60, p3, 300  ; Vary cutoff frequency
kresonance1 = 3
inumlayer1 = 3
asig1 lowresx asig, kcut1, kresonance1, inumlayer1
;filter the other channel
kcut2 line 300, p3, 60  ; Vary cutoff frequency
kresonance2 = 3
inumlayer2 = 3
asig2 lowresx asig, kcut2, kresonance2, inumlayer2

      outs asig1, asig2 ; output both channels 1 & 2

endin
</CsInstruments>
<CsScore>

i 1 0 3
e
</CsScore>
</CsoundSynthesizer>

See also

Signal Output

Credits

Author: Barry L. Vercoe, Matt Ingalls/Mike Berry
MIT, Mills College
1993-1997