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Re: [Linphone-users] Why isn't the echo cancellation working?


From: Simon Brenner
Subject: Re: [Linphone-users] Why isn't the echo cancellation working?
Date: Fri, 20 Aug 2010 09:08:58 +0200
User-agent: Thunderbird 2.0.0.22 (X11/20091015)

Yes. I'm using an ARM based device with a Wolfson audio codec.

-Simon.


Dragos D wrote:
> Are you using one soundcard for microphone and speakers?
> Dragos
> 
> On Thu, Aug 19, 2010 at 10:43 AM, Simon Brenner
> <address@hidden <mailto:address@hidden>> wrote:
> 
>     Hi,
> 
>     can anyone tell me why the echo cancellation of my Linphone isn't
>     working?
>     I'm using a git Linphone on Linux. I'm setting my ec with
> 
>     ec on 256 256 256
> 
>     It seems like I'm getting 100% echo...
>     Any suggestions?
> 
>     Thanks,
>     -Simon.
> 
>     P.S.:
> 
>     ortp-message-Initializing speex echo canceler with framesize=256,
>     filterlength=2048, delay_samples=2048
>     ortp-message-Filter MSRtpRecv is already being scheduled; nothing to do.
>     ortp-warning-No valid video stream defined.
>     ortp-message-call answered.
>     linphonec> ortp-message-MS ticker priority set to max
>     ortp-message-alsa_open_r: opening default at 8000Hz, bits=16, stereo=0
>     ortp-warning-alsa_set_params: periodsize:256 Using 256
>     ortp-warning-alsa_set_params: period:8 Using 8
>     ortp-message-alsa_open_r: Audio params set
>     ortp-message-linphone process event get a message 15
> 
>     ortp-message-CALL_ACK
>     ortp-message-speex_ec: starting receiving echo signal
>     ortp-warning-No ref samples, using silence instead
>     ortp-message-alsa_open_r: opening default at 8000Hz, bits=16, stereo=0
>     ortp-warning-alsa_set_params: periodsize:256 Using 256
>     ortp-warning-alsa_set_params: period:8 Using 8
>     ortp-message-alsa_open_w: Audio params set
>     ortp-message-bandwidth usage: audio=[d=240.3,u=115.7]
>     video=[d=0.0,u=0.0] kbit/sec
>     ortp-warning-Reference stream is back.
>     ortp-message-bandwidth usage: audio=[d=81.0,u=80.4]
>     video=[d=0.0,u=0.0] kbit/sec
>     ortp-message-bandwidth usage: audio=[d=80.2,u=81.3]
>     video=[d=0.0,u=0.0] kbit/sec
>     ortp-message-free transaction ressource 4 92027019
>     ortp-message-free nict ressource
>     ortp-message-bandwidth usage: audio=[d=81.2,u=81.5]
>     video=[d=0.0,u=0.0] kbit/sec
>     ortp-warning-No ref samples, using silence instead
>     ortp-warning-Reference stream is back.
>     ortp-message-bandwidth usage: audio=[d=78.4,u=79.6]
>     video=[d=0.0,u=0.0] kbit/sec
>     ortp-message-bandwidth usage: audio=[d=79.5,u=82.9]
>     video=[d=0.0,u=0.0] kbit/sec
>     ortp-message-bandwidth usage: audio=[d=81.0,u=81.3]
>     video=[d=0.0,u=0.0] kbit/sec
>     ortp-message-bandwidth usage: audio=[d=81.1,u=81.4]
>     video=[d=0.0,u=0.0] kbit/sec

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