ctrl14
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## ctrl14

ctrl14 — Allows a floating-point 14-bit MIDI signal scaled with a minimum and a maximum range.

## Description

Allows a floating-point 14-bit MIDI signal scaled with a minimum and a maximum range.

## Syntax

    idest ctrl14 ichan, ictlno1, ictlno2, imin, imax [, ifn]

    kdest ctrl14 ichan, ictlno1, ictlno2, kmin, kmax [, ifn]

## Initialization

idest -- output signal

ichan -- MIDI channel number (1-16)

ictln1o -- most-significant byte controller number (0-127)

ictlno2 -- least-significant byte controller number (0-127)

imin -- user-defined minimum floating-point value of output

imax -- user-defined maximum floating-point value of output

ifn (optional) -- table to be read when indexing is required. Table must be normalized. Output is scaled according to imax and imin val.

## Performance

kdest -- output signal

kmin -- user-defined minimum floating-point value of output

kmax -- user-defined maximum floating-point value of output

ctrl14 (i- and k-rate 14 bit MIDI control) allows a floating-point 14-bit MIDI signal scaled with a minimum and a maximum range. The minimum and maximum values can be varied at k-rate. It can use optional interpolated table indexing. It requires two MIDI controllers as input.

ctrl14 differs from midic14 because it can be included in score-oriented instruments without Csound crashes. It needs the additional parameter ichan containing the MIDI channel of the controller. MIDI channel is the same for all the controllers used in a single ctrl14 opcode.

## Examples

Here is an example of the ctrl14 opcode. It uses the file ctrl14.csd.

Example 174. Example of the ctrl14 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
    -odac   -M0  ;;;RT audio I/O with MIDI in
    ;-iadc    ;;;uncomment -iadc if RT audio input is needed too
    </CsOptions>
    <CsInstruments>

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

    instr 1	; expects MIDI controller input on channel 1
    ; run and move your midi controller to see result

    imax = 1
    imin = 0
    ichan = 1
    ictlno = 7

    	initc14	1, ictlno, ictlno+1, 1			; start at max. volume
    kamp	ctrl14	ichan, ictlno, ictlno+1, imin, imax	; controller 7
    	printk2	kamp
    asig	oscil	kamp, 220, 1
    	outs	asig, asig

    endin

    </CsInstruments>
    <CsScore>
    f 1 0 4096 10 1

    i1 0 20

    e
    </CsScore>
    </CsoundSynthesizer>

## See Also

ctrl7, ctrl21, initc7, initc14, initc21, midic7, midic14, midic21

## Credits

Author: Gabriel Maldonado
Italy

New in Csound version 3.47

Thanks goes to Rasmus Ekman for pointing out the correct MIDI channel and controller number ranges.

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