[asterisk-dev] Suggestion on Packet Loss Concealment Algorithm

Johansson Olle E olle at voop.com
Wed May 17 01:16:28 MST 2006


17 maj 2006 kl. 10.06 skrev <ColinZuo at viatech.com.cn>  
<ColinZuo at viatech.com.cn>:

> Hi all,
>
> 	The current PLC algorithm uses only one pitch period, and  
> therefore behaves bad during burst lost (Beeps in background),
> I have prolonged the pitch period under burst loss situation and  
> tested it using a small utility of ITU STL2005. As for the music files
> (which were produced using VLC's file output module), the modified  
> plc can handle 50% and 50ms long loss, although it might be that
> the music wave doesn't vary very fast, i think the modification  
> still improve the performance very much.
>
> 	The attachment is the rar of the modified files, very little  
> change <<asteriskplc.rar>> .

Please open a bug report, and add your code to that bug report,  
clearly indicating that you've sent a disclaimer for the
code to Digium. Thanks!

/O


---
Olle E. Johansson * Asterisk Evangelist, developer * VOOP A/S
olle at voop.com






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