[Speex-dev] Integrating speex with VideoNet application: Constantbackground noise

[Carine Liang]

Hi John,

I noticed the values after decode is very much different from the values of the original PCM samples. For cases when the PCM sample values are constant (because no one is speaking), the decoded values fluctuate too. These fluatuations are causing the background noise. Is my observation expected?

Thanks,
Carine

----- Original Message ----
From: John Miles <jmiles at pop.net>
To: Carine Liang <carineliang at yahoo.com.sg>; speex-dev at xiph.org
Sent: Monday, 6 November 2006 11:52:53 AM
Subject: RE: [Speex-dev] Integrating speex with VideoNet application: Constantbackground noise



 
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MARGIN:0px;}



It 
could be a million different things, unfortunately.  Focus on comparing 
your code to the Speex examples, and looking for places where they 
diverge.  Also, try taking Speex out of the picture altogether, just to 
make sure you can send plain uncompressed PCM audio through your network 
layer.  

 

-- 
john

RAD 
Game Tools


  -----Original Message-----
From: Carine Liang 
  [mailto:carineliang at yahoo.com.sg]
Sent: Sunday, November 05, 2006 
  4:51 PM
To: John Miles; speex-dev at xiph.org
Subject: Re: 
  [Speex-dev] Integrating speex with VideoNet application: Constantbackground 
  noise



  
  Hi,

I've 
  changed the m_waveFormatEx.wBitsPerSample for both record buffer and playSound 
  buffer, changed my array from char to short and I'm still getting the same 
  constant background noise. I notice that when I talk into the mike, I will get 
  a slightly louder noise, can't hear any clear speech... Any idea what's 
  wrong?

Regards,
Carine







		
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