filebit — Returns the number of bits in each sample in a sound file.


Returns the number of bits in each sample in a sound file.


ir filebit ifilcod [, iallowraw]


ifilcod -- sound file to be queried

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


filebit returns the number of bits in each sample in the sound file ifilcod. In the case of floating point samples the value -1 is returned for floats and -2 for doubles. For non-PCM formats the value is negative, and based on libsndfile's format encoding.


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

Example 262. Example of the filebit 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 filebit.wav -W ;;; for file output any platform

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

; Instrument #1.
instr 1
  ; Print out the number of channels in the 
  ; audio file "mary.wav".
  ibits filebit "mary.wav"
  print ibits


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


The audio file mary.wav is in monoaural CD format, so filebit's output should include a line like this:

instr 1:  ibits = 16.000

See Also

filelen, filenchnls, filepeak, filesr


Author: Victor Lazzarini
July 1999

Example written by John ffitch.

New in Csound version 5.11