[opus] Opus DTX issue report

[Gonzalo Mariano (gmariano)]

Hello:

I am currently on Holiday ... perhaps my colleague Pascal can confirm the fix. If not, I'll check after I return to work on Monday 7/7.

Thanks for your work.

Regards,
Gonzalo

-----Original Message-----
From: Jean-Marc Valin [mailto:jmvalin at jmvalin.ca] 
Sent: Friday, June 20, 2014 3:05 AM
To: Gonzalo Mariano (gmariano); opus at xiph.org
Cc: Pascal Huart (phuart)
Subject: Re: [opus] Opus DTX issue report

Hi Gonzalo,

Thanks for reporting this DTX issue. It should now be fixed in git. Can you confirm this it is indeed the case?

Cheers,

	Jean-Marc

On 19/05/14 10:20 AM, Gonzalo Mariano (gmariano) wrote:
> Hello:
> 
>  
> 
> We noticed that opus reconstructed noise is pulsing with a 400ms 
> pattern when dtx is enabled in silk mode. This is independent of the 
> background noise level and is found with speech + non-speech period 
> test files as well as variable level noise-only test files. This issue 
> can be reproduced  with opus v1.1 using this command:
> 
>                 ./opus_demo voip 16000 1 25000 -dtx input.bin 
> output.bin
> 
>  
> 
> We have attached a .wav file with the first channel as the input 
> reference noise signal and the second channel as the opus codec output 
> using the opus_demo application.It does not look like this has been 
> reported already. We would like your feedback.
> 
>  
> 
> Thanks,
> 
> Gonzalo Mariano and Pascal Huart
> 
> Cisco
> 
>  
> 
>  
> 
> 
> 
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