pvsgain
Scale the amplitude of a pv stream.
Syntax
fsig -- output pv stream
fsigin -- input pv stream
kgain -- amplitude scaling (defaults to 1).
Warning
It is unsafe to use the same f-variable for both input and output of pvs opcodes. Using the same one might lead to undefined behavior on some opcodes. Use a different one on the left and right sides of the opcode.
Examples
Here is an example of the use of the pvsgain opcode. It uses the file pvsgain.csd.
| Example of the _pvsgain_ opcode. |
|---|
| <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 pvsgain.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>
sr = 44100
ksmps = 32
nchnls = 2
0dbfs = 1
instr 1
kgain = p4
asig diskin2 "drumsMlp.wav", 1
fsig pvsanal asig, 1024, 256, 1024, 1; analyse it
ftps pvsgain fsig, kgain ; amplify it
atps pvsynth ftps ; synthesise it
outs atps, atps
endin
</CsInstruments>
<CsScore>
i1 0 2 .5
i1 + 2 1
e
</CsScore>
</CsoundSynthesizer>
|
See also
Tools for Real-time Spectral Processing (pvs opcodes)
Credits
Author: Victor Lazzarini
2011
New plugin in version 5
2011