osciln
Prev | Orchestra Opcodes and Operators | Next

## osciln

osciln — Accesses table values at a user-defined frequency.

## Description

Accesses table values at a user-defined frequency. This opcode can also be written as oscilx.

## Syntax

    ares osciln kamp, ifrq, ifn, itimes

## Initialization

ifrq, itimes -- rate and number of times through the stored table.

ifn -- function table number.

## Performance

kamp -- amplitude factor

osciln will sample several times through the stored table at a rate of ifrq times per second, after which it will output zeros. Generates audio signals only, with output values scaled by kamp.

## Examples

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

Example 662. Example of the osciln 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   ;;;realtime audio out
    ;-iadc    ;;;uncomment -iadc if realtime audio input is needed too
    ; For Non-realtime ouput leave only the line below:
    ; -o osciln.wav -W ;;; for file output any platform
    </CsOptions>
    <CsInstruments>

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

    gione ftgen 1, 0, 1024, 7, 0, 1,   1, 1024, 0
    gitwo ftgen 2, 0, 1024, 7, 0, 512, 1, 512,  0

    instr 1	;very simple waveguide system

    ifn     = p4
    ipitch  = p5
    itimes  = p6
    iperiod = 1000/ipitch

    afeed   init   0
    aimpl   osciln 1, ipitch, ifn, itimes   ;use as excitation signal
    arefl   tone   aimpl + afeed, 4000
    aout    atone  arefl, 5000
    afeed   vdelay arefl, iperiod, 10
            outs   aout*3, aout*3

    endin
    </CsInstruments>
    <CsScore>

    i 1 0  4 1 110 1	;use different tables,
    i 1 5  4 2 110 1	;& different pitch
    i 1 10 4 1 110 10	;& different number of times the table is read
    i 1 15 4 2 110 10
    i 1 20 6 1 880 1
    i 1 25 3 2 880 1
    i 1 30 3 1 880 10
    i 1 35 3 2 880 10

    e
    </CsScore>
    </CsoundSynthesizer>

## See Also

table, tablei, table3, oscil1, oscil1i

Prev | Up | Next
oscilikts | Home | oscils