Hi Syd,
Looking at this simple audio flow diagram:
---
aud dev 16khz/PCM -> conf bridge 16khz/PCM --> stream 8khz/PCMU (garbled)
+-> recorder 16khz/PCM (ok)
---
the audio processing differences will be resampling 16->8 (in conf_bridge)
and (PCMU) encoding.
So, could you test again without resampling, i.e: running pjsua with
additional config "--clock-rate 8000" and "--snd-clock-rate 8000", and still
using PCMU.
BR,
nanang
On Thu, Jan 28, 2010 at 9:19 PM, Benny Prijono <bennylp at teluu.com> wrote:
> On Thu, Jan 28, 2010 at 2:16 PM, Benny Prijono <bennylp at teluu.com> wrote:
>> On Thu, Jan 28, 2010 at 11:06 AM, Syd Brearley <cherkazoo at live.co.uk>
wrote:
>>>> What if you record the mic audio (from the conference bridge) whilst
>>>> making the call at the same time, then see if the recorded audio from
>>>> the microphone also gets bad when the call audio is bad.
>>>
>>> Hi Benny,
>>>
>>> I have used pjsua application to record the call and the recording has
very
>>> clear voice for both ends.
>>>
>>
>> Can you put the files somewhere so that we could download them?
>>
>
> I mean, both the WAV file and the .pcap capture of the traffic. I'll
> be better if you use PCMU codec so that it'll be easier to manipulate
> (not to mention that PCMU is normally foolproof). If you have pjsua
> log file, that would be better. Once you uploaded the files, please
> tell us the time when the audio starts deteriorating.
>
> Cheers
> Benny
>
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