[Freeswitch-dev] choppy sound with .wav file played inthebackground

[Callum Guy]

Han,

I think i may have come across this sort of issue before with my first use
of the FreeSWITCH system.

Have you seen anything such as this in the logs/fs_cli output during the
call?

2011-09-28 15:37:12.047658 [DEBUG] switch_ivr.c:577 sofia/internal/1000
Command Execute
playback(/usr/local/freeswitch/sounds/en/uk/cg_test/cg_out_test_welcome.wav)
EXECUTE sofia/internal/1000
playback(/usr/local/freeswitch/sounds/en/uk/cg_test/cg_out_test_welcome.wav)
2011-09-28 15:37:12.047658 [DEBUG] switch_ivr_play_say.c:1302 Codec
Activated L16 at 8000hz 1 channels 30ms
2011-09-28 15:37:12.107661 [DEBUG] switch_rtp.c:3181 Correct ip/port
confirmed.
2011-09-28 15:37:12.317674 [WARNING] mod_sofia.c:1115 Asynchronous PTIME not
supported, changing our end from 30 to 20
2011-09-28 15:37:12.317674 [DEBUG] sofia_glue.c:2775 Changing Codec from
PCMA at 30ms@8000hz to PCMA at 20ms@8000hz
2011-09-28 15:37:12.367677 [DEBUG] switch_rtp.c:1527 RE-Starting timer
[soft] 160 bytes per 20ms
2011-09-28 15:37:12.367677 [DEBUG] sofia_glue.c:2857 Set Codec
sofia/internal/1000 PCMA/8000 20 ms 160 samples 64000 bits

I looked into this at the time and my understanding was that I need to try
and add PCMA at 20i in /usr/local/src/freeswitch/conf/vars.xml and re-compile
however i have not revisited the issue yet as i only found this to be an
issue with outbound only calls from FS, something i was doing just as a
demonstration.

I found it can be resolved by updating my handset to set RTP Packet Size to
0.020 (its default was 0.030). I doubt this is of much help but perhaps its
worth checking? This is my first contribution to the mailing list and i'm
not a greatly experienced used but i did want to raise this as a possibility
- apologies if this hasn't been of any use!

Thanks,

Callum Guy


On 25 October 2011 10:24, Han Xin <xin at ind.rwth-aachen.de> wrote:

>  hmm, just one call with two sessions, one is the local session, the other
> is the remote/partner session.
>
> I want to play a indication sound file when I press a button on each side,
> while the call is ongoing. That's what I mean with
> the background. sorry for the vague description.
>
> Regards,
> Han
>
> ----------------original message-----------------
> From: "Peter Olsson"
> To: "'freeswitch-dev at lists.freeswitch.org '"
> freeswitch-dev at lists.freeswitch.org
> Date: Tue, 25 Oct 2011 11:00:53 +0200
> -------------------------------------------------
>
>
> > How do you mean when you say "in background"? Are ju running this command
> from
> > another thread then the channel's own thread?
> >
> > /Peter
> >
> >
> > -----Ursprungligt meddelande-----
> > Från: freeswitch-dev-bounces at lists.freeswitch.org
> > [mailto:freeswitch-dev-bounces at lists.freeswitch.org ] För Han Xin
> > Skickat: den 25 oktober 2011 10:53
> > Till: freeswitch-dev at lists.freeswitch.org
> > Ämne: [Freeswitch-dev] choppy sound with .wav file played in the
> background
> >
> > Hi all, I have another question to ask again :P
> >
> > When I use:
> >
> > switch_ivr_play_file(session, NULL, file_path, NULL);
> >
> > to play a file such as "misc/8000/sorry.wav" directly, the sound is so
> choppy.
> >
> > Am I doing the background sound playing the right way?
> >
> > Han
> > --
> >
> >
> >
> >
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