[Openal] repeated "buzz" while streaming with openAL

Simon MAZUE smazue at gmail.com
Mon Sep 17 00:39:56 PDT 2007


Hello,

Thank you for your answers but I tried the two changes (10 buffers of 17640
bytes and capture at 48000 hz) and the "buzz" is still here. However, it's
much more frequent with the smaller buffer size. So, it seems that the
problem comes from the client part.
And I use windows XP on both side of the system.

thanks again for your help.

-- 
Simon MAZUE





Daniel PEACOCK wrote:
> 
> 
> 
> 
> 
> Hi Simon,
> 
> It would be useful to know at what stage things have gone wrong ... during
> capture, during transmission across the network to the 2nd PC, or during
> playback.   This can be determined by writing a wave file to disc at the
> different stages - e.g write a wavefile to disc based on what you receive
> from the capture buffer on the first PC, and write another wavefile on the
> 2nd PC based on the audio data it receives.
> 
> Rather than using 2 big buffers of 88200 you would probably be better off
> using more buffers of smaller sizes, e.g use 10 buffers of 17640 bytes.
> 
> Also which OS are you using?
> 
> Dan
> Creative Labs, Inc.
> 
> Notice
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>                                                                            
>              Jason Daly                                                    
>              <jdaly at ist.ucf.ed                                             
>              u>                                                         To 
>              Sent by:                  Simon MAZUE <smazue at gmail.com>      
>              openal-bounces at op                                          cc 
>              ensource.creative         openal at opensource.creative.com      
>              .com                                                  Subject 
>                                        Re: [Openal] repeated "buzz" while  
>                                        streaming with openAL               
>              09/14/2007 07:37                                              
>              AM                                                            
>                                                                            
>                                                                            
>                                                                            
>                                                                            
> 
> 
> 
> 
> Simon MAZUE wrote:
>> Hello,
>>
>> I am trying to stream the sound from a PC to another PC using OpenAL. I
>> capture it and send it in PCM (44100 Hz) but what I obtain on my other PC
> is
>> the same sound cut by "buzz" every time the buffer changes (2 buffer of
>> 88200 bytes).
>>
>> I have tried many changes but with no success. However, it seems to be my
>> "client" application which causes the problem. Is there someone who has
> any
>> clue of where this comes from and how to stop it ?
>>
> 
> Not that this is a solution, but what happens if you capture and send at
> 48000 hz?
> 
> --"J"
> 
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