Re: [Linphone-users] Android: audio in bursts (overrun, purging)

[Dragos D]

This "purging" error messages are related to echo cancellation.

On Wed, Jan 12, 2011 at 9:53 AM, Emmanuel Proulx <address@hidden> wrote:

I installed Linphone 1.0.16 for Android 2.1 (Samsung Galaxy S).

 

Registration works fine, and I can initiate a call. But it sounds like a lot of data is lost during calls. I only hear bursts of sound not continuous sound.

 

I turned on debugging and I dumped the logs. There’s a lot of messages coming out like those:

 

I/Linphone( 6457): bandwidth usage: audio=[d=82.3,u=87.7] video=[d=0.0,u=0.0] kbit/sec

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

W/Linphone( 6457): purging 256 bytes from ref signal, size=1344, limit=960

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

W/Linphone( 6457): purging 256 bytes from ref signal, size=1408, limit=960

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

W/Linphone( 6457): purging 256 bytes from ref signal, size=1472, limit=960

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

W/Linphone( 6457): purging 256 bytes from ref signal, size=1536, limit=960

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

W/Linphone( 6457): purging 256 bytes from ref signal, size=1600, limit=960

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

W/Linphone( 6457): purging 256 bytes from ref signal, size=1664, limit=960

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

W/Linphone( 6457): purging 256 bytes from ref signal, size=1728, limit=960

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

W/Linphone( 6457): purging 256 bytes from ref signal, size=1792, limit=960

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

V/AudioRecord( 6457): Overrun user: 500, server: 640, flowControlFlag 1

W/Linphone( 6457): purging 256 bytes from ref signal, size=1856, limit=960

This “overrun” and “purging” sounds alarming.  I don’t know how to adjust the jitter setting (if any).

 

Can you please help me?

 

Thanks!

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