Speex dev - Dec 2006 - speex 1.2beta1 encoding/decoding clicking noise on WM2003

Can you post the input and output file on the web and specify what
options you're using (use speexenc/speexdec, *not* your own code).

	Jean-Marc

Yanxin Cui a ?crit :
> Would it help if I scale the input wav data before encoding to spx?
> One interesting thing is if I encode the same wav file to spx(or
> decode the same spx file to wav ) on Windows platform, then there is
> no such big clicking noise, samething is true if I use floating_point
> speex library to encode/decode on WM2003. Problem happens only on
> WM2003 using FIXED_POINT library.
> 
> Thanks
> 
> Yanxin
> 
> 
> ----- Original Message ----- From: "Jean-Marc Valin"
> <jean-marc.valin@usherbrooke.ca> To: <ycui@wmsvision.com> Cc:
> <speex-dev@xiph.org> Sent: Tuesday, December 05, 2006 4:53 PM 
> Subject: Re: [Speex-dev] speex 1.2beta1 encoding/decoding clicking
> noise on WM2003
> 
> 
>> Check that the recording level isn't too high. Samples should never
>>  reach saturation (+-32767) and should generally be less than 16384
>> to have good results.
>> 
>> Jean-Marc
>> 
>> Yanxin Cui a ?crit :
>>> I am running speex 1.2beta1 on WM2003 using FIXED_POINT option, I
>>> got big clicking noise during encoding or decoding randomly, I
>>> got more noise if I spoke louder or made the MIC sensitivity
>>> higher, for example, when I encode the wav file to spx file, the
>>> original saved wav file does not have such noise, the noise is
>>> added only after it's converted to spx format. The floating
point
>>> version of libspeex library does not give me such noise(but runs
>>> slow of course). Any suggestions?
>>> 
>>> Thanks a lot!
>>> 
>>> Yanxin
>>> 
>>> 
>>>
------------------------------------------------------------------------
>>> 
>>> 
>>> _______________________________________________ Speex-dev mailing
>>> list Speex-dev@xiph.org 
>>> http://lists.xiph.org/mailman/listinfo/speex-dev
>> 
>> 
>> -- No virus found in this incoming message. Checked by AVG Free
>> Edition. Version: 7.1.409 / Virus Database: 268.15.9/571 - Release
>> Date: 2006-12-5
>> 
>>

Would it help if I scale the input wav data before encoding to spx? One
interesting thing is if I encode the same wav file to spx(or decode the same spx
file to wav ) on Windows platform, then there is no such big clicking noise,
samething is true if I use floating_point speex library to encode/decode on
WM2003. Problem happens only on WM2003 using FIXED_POINT library.

Thanks

Yanxin


----- Original Message ----- 
From: "Jean-Marc Valin" <jean-marc.valin@usherbrooke.ca>
To: <ycui@wmsvision.com>
Cc: <speex-dev@xiph.org>
Sent: Tuesday, December 05, 2006 4:53 PM
Subject: Re: [Speex-dev] speex 1.2beta1 encoding/decoding clicking noise on
WM2003

> Check that the recording level isn't too high. Samples should never
> reach saturation (+-32767) and should generally be less than 16384 to
> have good results.
> 
> Jean-Marc
> 
> Yanxin Cui a ?crit :
>> I am running speex 1.2beta1 on WM2003 using FIXED_POINT option, I got
big
>> clicking noise during encoding or decoding randomly, I got more noise
if I
>> spoke louder or made the MIC sensitivity higher, for example, when I
encode
>> the wav file to spx file, the original saved wav file does not have
such
>> noise, the noise is added only after it's converted to spx format.
The
>> floating point version of libspeex library does not give me such
noise(but
>> runs slow of course). Any suggestions?
>> 
>> Thanks a lot!
>> 
>> Yanxin
>> 
>> 
>>
------------------------------------------------------------------------
>> 
>> _______________________________________________
>> Speex-dev mailing list
>> Speex-dev@xiph.org
>> http://lists.xiph.org/mailman/listinfo/speex-dev
> 
> 
> 
> -- 
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.1.409 / Virus Database: 268.15.9/571 - Release Date: 2006-12-5
> 
>