wav/info
Wav
(Wav)
WAV/audio file handle.
Since: 0.2.0
wav-open-read
(wav-open-read [path : cstr] :)
open a WAV/PCM/FLAC/AIFF file for reading.
| path | filesystem path to the audio file |
(Result Wav int) -- ok carries the Wav handle; err carries 0 if the file could not be opened. Free with wav-close when done.
(let [r (wav-open-read "sound.wav")]
(if (ok? r) (let [w (ok-val r)] ...) (println "open failed")))
Since: WV0
wav-open-write
(wav-open-write [path : cstr sample-rate : int channels : int format : cstr] :)
open a new audio file for writing.
| path | filesystem path for the new audio file | |
| sample-rate | sample rate in Hz (e.g. 44100) | |
| channels | number of channels (e.g. 1 for mono, 2 for stereo) | |
| format | format keyword: ":wav-pcm16", ":wav-pcm24", ":wav-pcm32", | |
| ":wav-float", ":aiff-pcm16", ":flac-pcm16", ":flac-pcm24" |
(Result Wav int) -- ok carries the Wav handle; err carries 0 if the file could not be created. Free with wav-close when done.
(let [r (wav-open-write "/tmp/out.wav" 44100 2 ":wav-pcm16")]
(if (ok? r) (let [w (ok-val r)] ...) (println "open failed")))
Since: WV0
wav-close
(wav-close [w : Wav] :)
close a WAV handle and free associated memory.
| w | WAV handle (ok-val from wav-open-read or wav-open-write) |
void
(wav-close w)
Since: WV0
wav-sample-rate
(wav-sample-rate [w : Wav] :)
return the sample rate of an open WAV handle.
| w | WAV handle (ok-val from wav-open-read or wav-open-write) |
Sample rate in Hz as :int.
(println (wav-sample-rate w))
Since: WV0
wav-channels
(wav-channels [w : Wav] :)
return the channel count of an open WAV handle.
| w | WAV handle (ok-val from wav-open-read or wav-open-write) |
Number of channels as :int.
(println (wav-channels w))
Since: WV0
wav-frame-count
(wav-frame-count [w : Wav] :)
return the total frame count of an open WAV handle.
| w | WAV handle (ok-val from wav-open-read; 0 for write handles) |
Total number of sample frames as :int.
(println (wav-frame-count w))
Since: WV0
wav-format
(wav-format [w : Wav] :)
return a string describing the container format.
| w | WAV handle (ok-val from wav-open-read or wav-open-write) |
One of "wav", "aiff", "flac", or "unknown" as :cstr.
(println (wav-format w))
Since: WV0