Description

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

Syntax

ir filebit ifilcod [, iallowraw]

Initialization

ifilcod -- sound file to be queried

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

Performance

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.

Examples

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

<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
; Audio out   Audio in
-n   ; no sound
; For Non-realtime ouput leave only the line below:
; -o filebit.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

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

instr 1

ibits filebit "stereoJungle.wav"
prints  "\nbit depth = %d bit\n\n", ibits

endin


</CsInstruments>
<CsScore>
i 1 0 0
e
</CsScore>
</CsoundSynthesizer>

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

bit depth = 16 bit
      

See also

Sound File Queries

Credits

New in Csound version 5.11