Re: [linux-audio-user] command line utility to change bit depth

New Message Reply About this list Date view Thread view Subject view Author view Other groups

Subject: Re: [linux-audio-user] command line utility to change bit depth
From: derek holzer (derek_AT_x-i.net)
Date: Thu Mar 18 2004 - 11:54:23 EET

Eric, Erik...

thanks both of you for the info. I am really starting to like ecasound!
;-) I found one tutorial on the web, but do you have any suggestions
for must-read docs to master this program?

thx,
d.

Eric Dantan Rzewnicki wrote:
> Erik de Castro Lopo wrote:
>
>> On Mon, 15 Mar 2004 23:26:51 +0100
>> derek holzer <derek_AT_x-i.net> wrote:
>>
>>> Does anyone know a good command-line app to change bit depth of WAV
>>> files? I'd like to batch process a bunch of files. Ecasound does not
>>> have this feature to my knowledge.
>>
>> In the libsndfile source code distribution there is an example program
>> called sndfile-convert:
>>
>> erikd_AT_miles > sndfile-convert Usage : sndfile-convert
>> [encoding] <input file> <output file>
>> where [encoding] may be one of the following:
>> -pcms8 : force the output to signed 8 bit pcm
>> -pcmu8 : force the output to unsigned 8 bit pcm
>> -pcm16 : force the output to 16 bit pcm
>> -pcm24 : force the output to 24 bit pcm
>> -pcm32 : force the output to 32 bit pcm
>> -float32 : force the output to 32 bit floating point
>> -ulaw : force the output ULAW
>> -alaw : force the output ALAW
>> -ima-adpcm : force the output to IMA ADPCM (WAV only)
>> -ms-adpcm : force the output to MS ADPCM (WAV only)
>> -gsm610 : force the GSM6.10 (WAV only)
>> -dwvw12 : force the output to 12 bit DWVW (AIFF only)
>> -dwvw16 : force the output to 16 bit DWVW (AIFF only)
>> -dwvw24 : force the output to 24 bit DWVW (AIFF only)
>> The format of the output file is determined by the file
>> extension of the
>> output file name. The following extensions are currently
>> understood:
>> aif : AIFF (Apple/SGI)
>> wav : WAV (Microsoft)
>> au : AU (Sun/NeXT)
>> snd : AU (Sun/NeXT)
>> svx : IFF (Amiga IFF/SVX8/SV16)
>> paf : PAF (Ensoniq PARIS)
>> fap : PAF (Ensoniq PARIS)
>> nist : WAV (NIST Sphere)
>> ircam : SF (Berkeley/IRCAM/CARL)
>> sf : SF (Berkeley/IRCAM/CARL)
>> voc : VOC (Creative Labs)
>> w64 : W64 (SoundFoundry WAVE 64)
>> raw : RAW (header-less)
>> mat4 : MAT4 (GNU Octave 2.0 / Matlab 4.2)
>> mat5 : MAT5 (GNU Octave 2.1 / Matlab 5.0)
>> mat : MAT4 (GNU Octave 2.0 / Matlab 4.2)
>> pvf : PVF (Portable Voice Format)
>> sds : SDS (Midi Sample Dump Standard)
>> xi : XI (FastTracker 2)
>>
>> libsndfile is at :
>>
>> http://www.mega-nerd.com/libsndfile/
>>
>> Erik
>
>
> And of course, ecasound can be compiled with libsndfile support giving
> it access to pretty much all the above.
>
> -ERic Rz.
> 

-- 
derek holzer ::: http://www.umatic.nl
---Oblique Strategy # 146:
"Spectrum analysis"

New Message Reply About this list Date view Thread view Subject view Author view Other groups

This archive was generated by hypermail 2b28 : Thu Mar 18 2004 - 11:27:54 EET