mp3len

Returns the length of an MP3 sound file.

Syntax

ir mp3len ifilcod

Initialization

ifilcod -- sound file to be queried

Performance

mp3len returns the length of the sound file ifilcod in seconds.

Examples

Here is an example of the mp3len opcode. It uses the file mp3len.csd.

Example of the mp3len 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 mp3len.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

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

instr 1

ilen   mp3len p4        ;calculate length of mp3 file
print  ilen

asigL, asigR mp3in p4
       outs  asigL, asigR

endin
</CsInstruments>
<CsScore>

i 1 0 30 "XORNOT_jul-14-05.mp3"    ; long signal
e
</CsScore>
</CsoundSynthesizer>

Credits

Author: John ffitch
Feb 2011

New in Csound version 5.14