[Freeswitch-users] Extract audio from PCAP

[Michael Collins]

Once you get the raw file out of the pcap do this:

sox -t ul -r 8000 -c 1 file.raw file.wav

That's assuming it's ulaw. Change "ul" to "al" if it's Alaw. If it's some
other codec then you'll need to figure out how to convert the raw to wav.
(That's where anthm's improvement of fs_encode is really handy.)

-MC

On Wed, Mar 6, 2013 at 1:16 PM, Avi Marcus <avi at avimarcus.net> wrote:

> Paul, yes, pcapsipdump is great.
> But now I want a .wav file out of that call, and wireshark crashes on
> certain files when trying to decode it... hence the question of other ways
> to extract it.
>
> -Avi
>
>
> On Wed, Mar 6, 2013 at 11:08 PM, Paul Cupis <paul at cupis.co.uk> wrote:
>
>> On 06/03/13 20:37, shouldbe q931 wrote:
>> > I am presuming that the pcap contains multiple "streams", so why not
>> > use a display filter to isolate and save each stream you are
>> > interested in,
>>
>> I believe that pcapsipdump can do this as well - take a pcap and create
>> per-call pcaps from it (SIP+RTP).
>>
>> Regards.
>>
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>
>
> _________________________________________________________________________
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> http://www.freeswitchsolutions.com
>
> 
> 
>
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-- 
Michael S Collins
Twitter: @mercutioviz
http://www.FreeSWITCH.org
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