[Asterisk-Users] RE: GSM -> ULAW sound conversion

[Michiel van Baak]

On 11:05, Sun 12 Jun 05, Kevin Bockman wrote:
> > Now, if I do a record on Asterisk, using pcm, au, or ul, I get pops in
> > the audio.  What am I doing wrong?
> > 
> > Also, what types of wav (not WAV) files does Asterisk generate?  I have
> > a couple wav files to convert too.  I believe if I do a sox file.wav -r
> > 8000 -c 1 fle.wav file.gsm, I have the same type of problem.
> > 
> > Kevin Bockman
> 
> If I store the file as gsm and record it as gsm, open it was gsm 6.10
> with Audacity, it is fine.  I know I am doing something wrong with the
> u-law conversion.
> 
> On a similar note, I have seen in the archives where people have an
> output of the file type, showing Hz, bits, etc.. what are they using
> for that? 
> 
> Thanks,
> 
> Kevin Bockman
> 

As I said in my last mail, 'file' should do it.
I checked it with a recorded voicemail:
sin# file msg0000.WAV
msg0000.WAV: Microsoft RIFF, WAVE audio data, mono 8000 Hz

Other types give other output, some showing channels etc,
some showing only filetype.
-- 
Michiel van Baak
http://michiel.vanbaak.info
michiel at vanbaak.info
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