[asterisk-users] Cepstral voice quality not good

[Darren Sessions]

One thing you'll want to keep in mind is that app_swift currently outputs 8khz ulaw only, unless you've changed it in the source. 

There are other things such as buffers that also effect call quality with app_swift.


On Oct 24, 2010, at 9:14 AM, Zeeshan Zakaria <zishanov at gmail.com> wrote:

> Actually it is bad only when received on cell phones. Today I listened to the same voices on a Cisco 7942 and they were great. I actually enjoyed listening to them. Not bad on X-Lite either. Previously I was mostly listening to them only through cell phones. So it means it is because of the transcodings at cell phone providers' ends. Bad though because many customers use cell phones exclusively. Maybe if I convert them to gsm format before playing, they'll play better, but will add delay and additional processing because they are converted and played in real time.
> Zeeshan A Zakaria
> 
> --
> www.ilovetovoip.com
> www.pbxforall.com (beta)
> 
>> On 2010-10-23 6:24 PM, "Zeeshan Zakaria" <zishanov at gmail.com> wrote:
>> 
>> I am using app_swift.
>> 
>> As a side note, demo on their website also generates sounds which at places sounds like robotic.
>> 
>> 
>> Zeeshan A Zakaria
>> 
>> --
>> www.ilovetovoip.com
>> www.pbxforall.com (beta)
>> 
>> 
>> 
>> On 2010-10-23 6:03 PM, "Darren Sessions" <dmsessions at gmail.com> wrote:
>> 
>> Are you using app_swift or wav files?
>> 
>> 
>> 
>> 
>> 
>> 
>> On Oct 23, 2010, at 5:26 PM, Zeeshan Zakaria <zishanov at gmail.com> wrote:
>> 
>> > Hello list,
>> >
>> 
>> > I hav...
>> 
>> >
>> > -- 
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