pvsdisp — Displays a PVS signal as an amplitude vs. freq graph.


This opcode will display a PVS signal fsig. Uses X11 or FLTK windows if enabled, else (or if -g flag is set) displays are approximated in ASCII characters.


pvsdisp fsig[, ibins, iwtflg] 


iprd -- the period of pvsdisp in seconds.

ibins (optional, default=all bins) -- optionally, display only ibins bins.

iwtflg (optional, default=0) -- wait flag. If non-zero, each pvsdisp is held until released by the user. The default value is 0 (no wait).


pvsdisp -- displays the PVS signal frame-by-frame.


Here is an example of the pvsdisp opcode. It uses the file pvsdisp.csd. This example uses realtime input, but you can also use it for soundfile input.

Example 356. Example of the pvsdisp opcode

See the sections Real-time Audio and Command Line Flags for more information on using command line flags.

; Select audio/midi flags here according to platform
; Audio out   Audio in
-odac           -iadc    ;;;RT audio I/O
; For Non-realtime ouput leave only the line below:
; -o pvsdisp.wav -W ;;; for file output any platform

sr = 44100
kr = 4410
ksmps = 10
nchnls = 1

instr 1
asig inch 1
;a1   soundin "input.wav"  ;select a soundifle
fsig pvsanal asig, 1024,256, 1024, 1
pvsdisp fsig



i 1 0 30


See Also

dispfft, print


Author: V Lazzarini, 2006