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[bwood-lists at jacosof...]

I'm trying to transcode a .wav to a .gsm using SOX v14.0.1. What I get
is a completely garbled when using playback in FreeSWITCH. I have
verified that at least one other application (Quicktime Player) can in
fact play the resulting .gsm file.

I have tried the following:

sox william.wav -t gsm william.gsm
sox william.wav -t gsm -r 8000 william.gsm resample -ql
sox william.wav -t gsm -r 8000 -c1 william.gsm resample -ql

And I am playing the file using:

originate sofia/internal/1000@192.168.1.1
&playback(/home/user/william.gsm)

Other formats such as uLaw and aLaw (-t ul and -t al, respectively) seem
to work fine.

Does anyone know of a set of parameters for SOX that will make this work?

At the end of the day, I just want it to work, so if anyone can
recommend any other known/good command line tools to encode GSM that
would be fine too.

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[brian at freeswitch.org]

How are you trying to play these files?

/b


On Nov 3, 2008, at 9:01 PM, Brian Wood wrote:

[bwood-lists at jacosof...]

From the CLI, I'm doing:

originate sofia/internal/1000@192.168.1.1 &playback(/home/user/william.gsm)


... just as a quick test. I've been using a combination of softphones
and a Polycom 501 as the destination. The .gsm file plays fine in an
application such as quicktime. .wav, .al, and .ul seem to work fine
with the playback command.


Brian West wrote:

[brian at freeswitch.org]

I use that every now and then it works fine... I'll have to retest this shortly and see... what sox version are you using?

/b

On Nov 4, 2008, at 8:28 AM, Brian Wood wrote:

[bwood-lists at jacosof...]

SOX v14.0.1. I'm running FreeSWITCH trunk 10208.


Brian West wrote:

[anthony.minessale at g...]

Try reversing the order you load mod_sndfile and mod_voipcodecs and let me know if it makes any diff.


On Mon, Nov 3, 2008 at 9:01 PM, Brian Wood <bwood-lists@jacosoft.com (bwood-lists@jacosoft.com)> wrote:

[mike at jerris.com]

fixed in svn revision 10238.

Mike

On Nov 4, 2008, at 9:51 AM, Brian Wood wrote:

[anthony.minessale at g...]

nevermind, try latest trunk we found the issue.


On Tue, Nov 4, 2008 at 9:20 AM, Anthony Minessale <anthony.minessale@gmail.com (anthony.minessale@gmail.com)> wrote:

[bwood-lists at jacosof...]

Confirmed. Fixed in 10238. Thanks!

Note to anyone else out there, you need to set the sample rate
(otherwise playback is slow), so the command line you want is:

sox william.wav -t gsm -r 8000 william.gsm



Anthony Minessale wrote: