ins

Reads stereo audio data from an external device or stream.

Warning

This opcode is designed to be used only with orchestras that have nchnls_i=2. Doing so with orchestras with nchnls_i > 2 will cause incorrect audio input.

Syntax

ar1, ar2 ins

Performance

Reads stereo audio data from an external device or stream. If the command-line -i flag is set, sound is read continuously from the audio input stream (e.g. stdin or a soundfile) into an internal buffer. Any number of these opcodes can read freely from this buffer.

Examples

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

<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
-odac   -iadc   ;;;realtime audio I/O
; For Non-realtime ouput leave only the line below:
; ins.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

sr = 44100
ksmps = 32
nchnls = 2                              ;two channels out
0dbfs  = 1

instr 1 

ain1, ainr ins                          ;grab your mic and sing
adel  linseg 0, p3*.5, 0.02, p3*.5, 0   ;max delay time = 20ms
aoutl flanger ain1, adel, .7
aoutr flanger ain1, adel*2, .8
      fout "in_s.wav", 14, aoutl, aoutr ;write to stereo file,
      outs aoutl, aoutr                 ;16 bits with header

endin
</CsInstruments>
<CsScore>

i 1 0 10
e
</CsScore>
</CsoundSynthesizer>

See also

Signal Input

Credits

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