[AG-TECH] Echoing and choppy audio on Mac to Mac

[Christoph Willing]

On 25/11/2008, at 2:47 PM, Gurcharan S. Khanna wrote:

> chris,
>
> is the fix known and it's just a matter of devoting resources to it?
> or is the fix still something difficult that has to be figured out?

Gurcharan,

I believe the fix is reasonably, if not completely, understood. It now  
needs resources to actually be done. I understand someone has just  
started some work on it in the last week or so. However I think that  
it will be worked on as a spare time project, rather than full time,  
so it may still be a while before we see any results.


chris


> Christoph Willing wrote:
>>
>> On 25/11/2008, at 8:34 AM, Jeremy Mann wrote:
>>
>>> On Mon, Nov 24, 2008 at 4:30 PM, Christoph Willing <c.willing at uq.edu.au 
>>> > wrote:
>>>>
>>>> On 25/11/2008, at 5:58 AM, Brad Knowles wrote:
>>>>
>>>>> Jeremy Mann wrote:
>>>>>
>>>>>> I encountered my first problem when connecting two Mac 10.5  
>>>>>> Leopard
>>>>>> machines using the Beta 3.2 version. Audio is good for about 2
>>>>>> minutes, then it sounds like the other person is underwater and
>>>>>> contains an echo. On his end, my audio sounded fine. No codecs  
>>>>>> were
>>>>>> changed and we even tried different bridges, all had the same  
>>>>>> problem.
>>>>>> Could this be a network configuration problem at his University?
>>>>>
>>>>> My understanding is that this is a known problem with "rat" on  
>>>>> Mac OS X,
>>>>> or at least Mac OS X on Intel hardware.
>>>>>
>>>>> So far, the only solution that has been offered to me is to quit  
>>>>> and
>>>>> restart the client every few minutes.
>>>>
>>>>
>>>> Rather than completely quitting then restarting, its enough to  
>>>> toggle the
>>>> audio icon near the top of the VenueClient gui.
>>>
>>> I guess the next question would be, HOW would he know his audio is
>>> choppy? On his end, incoming audio sounds fine, so how would he know
>>> to toggle the GUI switch or restart the RAT client without asking
>>> somebody if his speech was choppy?
>>
>> Yes, its not a great workaround - we really need a proper fix. I  
>> think the Mac user would have to do the toggle just before they're  
>> about to speak and/or just toggle every 2 minutes or so.
>>
>>
>> chris
>>
>>
>>
>> Christoph Willing                       +61 7 3365 8350
>> QCIF Access Grid Manager
>> University of Queensland
>>
>
>
> -- 
> -------------------------
> Gurcharan S. Khanna, Ph.D.
> Director of Research Computing
> Office of the Vice President for Research
> http://rc.rit.edu
>
> Assistant Research Professor, Ph.D. Program
> Golisano College of Computing and Information Sciences
> http://people.rit.edu/gskpop
>
> Director, Interactive Collaboration Environments Laboratory,
> Center for the Advancing the Study of Cyberinfrastructure
> http://icelab.rit.edu
> ---
> Rochester Institute of Technology
> 1 Lomb Memorial Drive
> Rochester, New York 14623-5603
> Phone: 585-475-7504  ~  Cell: 585-451-8370
> Email: gurcharan.khanna at rit.edu
>

Christoph Willing                       +61 7 3365 8350
QCIF Access Grid Manager
University of Queensland