GEN24

Reads numeric values from another allocated function-table and rescales them according to the max and min values given by the user.

Syntax

f # time size -24 ftable min max

Initialization

#, time, size -- the usual GEN parameters. See f statement.

ftable -- ftable must be an already allocated table with the same size as this function.

min, max -- the rescaling range.

Note

This GEN is useful, for example, to eliminate the starting offset in exponential segments allowing a real starting from zero.

Examples

Here is an example of the GEN24 opcode. It uses the file gen24.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 gen24.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

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

instr 1

ifn  = p4                               ;choose between tables
kcps init 1/p3                          ;create index over duration of note.
kndx phasor kcps
ixmode = 1                              ;normalize to 0-1
kval table kndx, ifn, ixmode
asig poscil .7, 440 + kval, 1           ;add to frequency
     outs asig, asig

endin
</CsInstruments>
<CsScore>
f 1 0 16384 10 1        ;sine wave
f 10 0 16384 -24 1 0 400;scale sine wave from table 1 from 0 to 400
f 11 0 16384 -24 1 0 50 ;and from 0 to 50

i 1 0 3 10
i 1 4 3 11
e
</CsScore>
</CsoundSynthesizer>

Credits

Author: Gabriel Maldonado

New in Csound version 4.16