ins
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## ins

ins — Reads stereo audio data from an external device or stream.

## Description

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.

Example 417. Example of the ins opcode.

    <CsoundSynthesizer>
    <CsOptions>
    ; Select audio/midi flags here according to platform
    -odac   -idac   ;;;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

diskin, in, inh, inh, ino, inq, soundin mp3in,

## Credits

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

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