[AG-TECH] Problem with mic, rat and gentoo

Thomas D. Uram turam at mcs.anl.gov
Mon Mar 14 22:44:12 CST 2005


This is a characteristic of AC97 based cards.  Rat handles some of them by hardcoding; 
others can be handled by setting the OSS_IS_AC97 environment variable.

export OSS_IS_AC97=1  (for sh)
setenv OSS_IS_AC97 1  (for csh)

Hopefully this fixes the problem.

Tom


Ashley Wright wrote:
> Hi Jason,
> 
> This was the first thing I tried, I prefer the talk to start muted, 
> however the setting made no difference.
> 
> This is a strange problem. I have had a look in the AudioService script 
> (inside AudioService.zip) but cant find anything I would think would 
> make a difference.
> 
> Ashley
> 
> Jason Bell wrote:
> 
>> Hi Ashley
>> Have you tried editing the audio service settings through the "manage my
>> node" configuration tool????
>>
>> You have the ability to change the input and output levels as well as
>> turning talk on and off.
>>
>> These setting may help as well.
>>
>> Cheers,
>> Jason.
>>
>> --------------------------------------------
>> Jason Bell, B.I.T.
>> B. Info. Tech. (Honours) Student
>>
>> Network Engineer
>> Information Technology Division
>> Central Queensland University
>>
>> High Performance Computing Support Officer
>> Central Queensland University
>>
>> Research Assistant to the Nonlinear Intelligent Systems Research Group
>> Faculty of Informatics & Communication
>> Central Queensland University
>>
>> E-mail : j.bell at cqu.edu.au
>> Phone : 07 4930 9229
>>
>> --------------------------------------------
>>
>> Patience is a virtue.
>> But if I wanted Patience,
>>
>> I would have become a Doctor.
>> --------------------------------------------
>>
>>
>> -----Original Message-----
>> From: Ashley Wright [mailto:a2.wright at qut.edu.au] Sent: Tuesday, 15 
>> March 2005 12:55
>> To: Jason Bell; 'ag-tech at mcs.anl.gov'
>> Subject: Re: [AG-TECH] Problem with mic, rat and gentoo
>>
>> Hi Jason,
>>
>> This looks good, I have found the file and the setting "*audioInputMute:
>>
>> 1" However if I set this to 0, next time the Venue Client opens the 
>> RAT it is set make to 1.
>>
>> Also interesting, if I open RAT with the command "rat 
>> xxx.xxx.xxx.xxx/xxx" the mic setting is left unchanged (this is good), 
>> however if it is opened with the Venue Client then I still get the 
>> feedback. This is making me think the venue client is doing something 
>> I do not want it to do.
>>
>> Any more ideas?
>> Ashley
>>
>> Jason Bell wrote:
>>
>>  
>>
>>> Hi Ashley
>>>
>>> There is a RatDefaults file in the home directory (Well there is for
>>> fedora anyway), you might want to changes some of the settings in that
>>> file so that when "rat" starts up, none of your settings are changed.
>>>
>>> Hope this helps.
>>>
>>> Cheers,
>>> Jason.
>>>
>>> --------------------------------------------
>>> Jason Bell, B.I.T.
>>> B. Info. Tech. (Honours) Student
>>>
>>> Network Engineer
>>> Information Technology Division
>>> Central Queensland University
>>>
>>> High Performance Computing Support Officer
>>> Central Queensland University
>>>
>>> Research Assistant to the Nonlinear Intelligent Systems Research Group
>>> Faculty of Informatics & Communication
>>> Central Queensland University
>>>
>>> E-mail : j.bell at cqu.edu.au
>>> Phone : 07 4930 9229
>>>
>>> --------------------------------------------
>>>
>>> Patience is a virtue.
>>> But if I wanted Patience,
>>>
>>> I would have become a Doctor.
>>> --------------------------------------------
>>>
>>>
>>> -----Original Message-----
>>> From: owner-ag-tech at mcs.anl.gov [mailto:owner-ag-tech at mcs.anl.gov] On
>>> Behalf Of Ashley Wright
>>> Sent: Tuesday, 15 March 2005 11:59
>>> To: ag-tech at mcs.anl.gov
>>> Subject: Re: [AG-TECH] Problem with mic, rat and gentoo
>>>
>>> Hi,
>>>
>>> Normally in the mixer (gnome volume control), we have the mic input 
>>> muted, with the record ticked. This works. Our problem is that when rat
>>>   
>>
>>
>>  
>>
>>> is started it un-mutes the sound, so that the sound plays though the 
>>> speakers. Ticking the mute box fixes this again.
>>>
>>> My problem is that every time rat is opened, or settings are changed, 
>>> the mic feedbacks though the speakers, and I have to tick the mute 
>>> box again.
>>>
>>> We are running a sound blaster live. We are using OSS because ALSA
>>>   
>>
>> gives
>>  
>>
>>> a distorted sound.
>>>
>>> This does not happen on our Fedora Access Grids, only our gentoo Access
>>>   
>>
>>
>>  
>>
>>> Grid.
>>>
>>> Anybody have any other ideas?
>>>
>>> Ashley
>>>
>>> Gavin W. Burris aka 86 wrote:
>>>
>>>
>>>
>>>   
>>>
>>>> Sounds like you have to adjust your mixer to not play capture back
>>>> through.  If you are not using ALSA, then I would highly recommend it.
>>>>
>>>> My notes, including mixer screen-grabs, here:
>>>> http://viz.aset.psu.edu/ga5in/AccessGridNodeOperation.html#audio
>>>>
>>>>
>>>> Ashley Wright wrote (on Mon, 14 Mar 2005 at 09:09):
>>>>
>>>>
>>>>  
>>>>     
>>>>
>>>>> Hi,
>>>>>
>>>>> We have set up a single computer accessgrid using Gentoo Linux. We
>>>>>    
>>>>>       
>>>
>>> have
>>>
>>>   
>>>
>>>>> used the official AG2.3 toolkit.
>>>>>
>>>>> My problem is that every time a new rat is opened (changing venue
>>>>>       
>>
>> etc)
>>  
>>
>>>>>    
>>>>>       
>>>
>>>
>>>
>>>   
>>>
>>>>> or a setting is changed, rat unmutes the microphone and the mic plays
>>>>>       
>>
>>
>>  
>>
>>>>> directly into the speakers. This causes feedback though the mic and 
>>>>> speakers. I then need to remute the mic in the gnome volume control
>>>>>       
>>
>> to
>>  
>>
>>>>>    
>>>>>       
>>>
>>>
>>>
>>>   
>>>
>>>>> get rid of the feedback.
>>>>>
>>>>> Does anybody have any ideas of what could be causing this, and a 
>>>>> suggested fix.
>>>>>
>>>>> Thanks,
>>>>> Ashley
>>>>>
>>>>> -- 
>>>>> Ashley Wright
>>>>> 3864 9264
>>>>> a2.wright at qut.edu.au
>>>>> HPC and Research Support Group
>>>>> Queensland University of Technology (QUT)
>>>>>
>>>>>  
>>>>>
>>>>>    
>>>>>       
>>>>
>>>>  
>>>>     
>>>
>>>
>>>
>>>   
>>
>>
>>
>>  
>>
> 
> 




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