Description

Returns the sample rate of a sound file.

Syntax

ir filesr ifilcod [, iallowraw]

Initialization

ifilcod -- sound file to be queried

iallowraw -- (Optional) Allow raw sound files (default=1)

Performance

filesr returns the sample rate of the sound file ifilcod. filesr can return the sample rate of convolve and PVOC files if the iallowraw flag is not zero (it is non-zero by default).

Examples

Here is an example of the filesr opcode. It uses the file filesr.csd, and mary.wav.

<CsoundSynthesizer>
<CsOptions>
; 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 filesr.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

; Initialize the global variables.
sr = 44100
kr = 4410
ksmps = 10
nchnls = 1

; Instrument #1.
instr 1
  ; Print out the sampling rate of the 
  ; audio file "mary.wav".
  isr filesr "mary.wav"
  print isr
endin


</CsInstruments>
<CsScore>

; Play Instrument #1 for 1 second.
i 1 0 1
e


</CsScore>
</CsoundSynthesizer>

The audio file “mary.wav” was sampled at 44.1 KHz. So filesr's output should include a line like this:

instr 1:  isr = 44100.000
      

See Also

filelen, filenchnls, filepeak

Credits

Example written by Kevin Conder.

New in Csound version 3.57