search for: constantbackground

...ng you're working in Windows on x86. -- john RAD Game Tools -----Original Message----- From: Carine Liang [mailto:carineliang@yahoo.com.sg] Sent: Sunday, November 05, 2006 8:38 PM To: John Miles; speex-dev@xiph.org Subject: Re: [Speex-dev] Integrating speex with VideoNet application: Constantbackground noise 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 ob...

...ise. Is my observation expected? Thanks, Carine ----- Original Message ---- From: John Miles <jmiles@pop.net> To: Carine Liang <carineliang@yahoo.com.sg>; speex-dev@xiph.org Sent: Monday, 6 November 2006 11:52:53 AM Subject: RE: [Speex-dev] Integrating speex with VideoNet application: Constantbackground noise DIV { 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 au...

...hanks a million, Carine ----- Original Message ---- From: Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> To: Carine Liang <carineliang@yahoo.com.sg> Cc: speex-dev@xiph.org Sent: Tuesday, 26 December 2006 6:58:06 PM Subject: Re: [Speex-dev] Integrating speex with VideoNet application: Constantbackground noise > Thanks. I've got the code for sampleenc and sampledec. But I didn't > know how to verify whether the decoded file is correct. So I tried to > analyse the decoded output and compile with my input. How about actually listening to the output first? > Test case: PCM sampl...

...h... Any idea what's wrong? Regards, Carine ----- Original Message ---- From: John Miles <jmiles@pop.net> To: Carine Liang <carineliang@yahoo.com.sg>; speex-dev@xiph.org Sent: Friday, 3 November 2006 12:32:43 AM Subject: RE: [Speex-dev] Integrating speex with VideoNet application: Constantbackground noise DIV { MARGIN:0px;} Yes, it's necessary; Speex will encode signed 16-bit PCM data and decode to the same format. See the examples that come with it. 8-bit audio is not something you would ever want to use. -- john RAD Game Tools -----Original Message----- From:...

...inal Message ---- From: Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> To: Carine Liang <carineliang@yahoo.com.sg> Cc: John Miles <jmiles@pop.net>; speex-dev@xiph.org Sent: Monday, 25 December 2006 10:22:44 AM Subject: Re: [Speex-dev] Integrating speex with VideoNet application: Constantbackground noise Have you tried starting with sampleenc/sampledec instead of doing everything from scratch. That and the manual should contain everything that's needed. Jean-Marc Carine Liang a ?crit : > Hi, > > > > I'm still unable to get rid of the background noise though I&...

...g PCM samples in windows? Please help. Carine ----- Original Message ---- From: John Miles <jmiles@pop.net> To: Carine Liang <carineliang@yahoo.com.sg>; speex-dev@xiph.org Sent: Friday, 3 November 2006 12:32:43 AM Subject: RE: [Speex-dev] Integrating speex with VideoNet application: Constantbackground noise DIV { MARGIN:0px;} Yes, it's necessary; Speex will encode signed 16-bit PCM data and decode to the same format. See the examples that come with it. 8-bit audio is not something you would ever want to use. -- john RAD Game Tools -----Original Message----- From:...

...nly? I changed all the short arrays in the example to char. Carine ----- Original Message ---- From: John Miles <jmiles@pop.net> To: carineliang@yahoo.com.sg; speex-dev@xiph.org Sent: Thursday, 2 November 2006 2:04:39 PM Subject: RE: [Speex-dev] Integrating speex with VideoNet application: Constantbackground noise DIV { MARGIN:0px;} At first glance it looks like you are opening the output device in 8-bit mode (m_waveFormatEx.wBitsPerSample =8;). You will need to use 16-bit mode if you expect to write an array of signed short integers to the audio buffer. 8-bit PCM is an unsigned mode, no...

Hi, Can someone please help me with my problem below. Any suggestions is appreciated. thanks, Carine ----- Original Message ---- From: Carine Liang <carineliang@yahoo.com.sg> To: speex-dev@xiph.org; speex-dev@xiph.org Sent: Tuesday, 31 October 2006 1:05:49 PM Subject: [Speex-dev] Integrating speex with VideoNet application: Constant background noise Hi, I am developing a peer-to-peer