[asterisk-dev] iLBC packet loss concealment (was: code-cleanup concerns)

Steve Underwood steveu at coppice.org
Sun Apr 16 07:25:31 MST 2006


Hi Anton,

I'm sure we'd all love to hear an explanation for that.

Regards,
Steve

Anton wrote:

>IMHO: To sound better than PSTN you either must transmit 
>more than 64Kbps audio or have poor PSTN connection to 
>compare :)
>
>On 16 April 2006 18:33, Steve Underwood wrote:
>  
>
>>Andrew Kohlsmith wrote:
>>    
>>
>>>On Sunday 16 April 2006 04:05, Matt Ranney wrote:
>>>      
>>>
>>>>My users tell me that Skype sounds better than asterisk
>>>>even when going to the PSTN, but I think this might be
>>>>because the headsets they are using just sound better
>>>>than their Cisco 7940 handsets.
>>>>        
>>>>
>>>the iLBC codec used in Skype is the wideband variety; it
>>>*is* better than PSTN.
>>>      
>>>
>>Skype is certainly better than the PSTN when going Skype
>>to Skype, but why do people think it sounds better than
>>the PSTN when going to the PSTN? Is it just psycological,
>>or are they using an environment (e.g. headset) that just
>>sounds better than their usual phone? Having they been
>>using a Cisco 7940 with G.729, where a real PSTN to PSTN
>>connection would sounds rather better? I find it an
>>interesting comment that Matt made.
>>
>>Steve
>>    
>>




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