Displaying 12 results from an estimated 12 matches for "ateis".
2009 Jun 13
1
Resampler saturation
> Quoting Stephane Lesage <stephane.lesage at ateis-international.com>:
> > Is this a bug ? Is it possible to fix it ?
> > (I use version speex 1.2beta2, because newer versions just
> don't work
> > on my
> > platform)
>
> This is probable the cause. 1.2beta2 was the first release to
> include the resam...
2009 Jun 12
1
Resampler saturation
...l amplitude is 0.8 or 26214.
After 2x upsampling, the peak level is about 30000 -> 114 % !!!
(plus the output is kinda weird)
Is this a bug ? Is it possible to fix it ?
(I use version speex 1.2beta2, because newer versions just don't work on my platform)
Best regards.
--
St?phane LESAGE
ATEIS International
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2007 Oct 16
2
Blackfin port on Visual DSP, Michael Shatz ?
...f you're reading this. Would you share your files ?
Jean-Marc, I don't want to come back on the debate,
but I think you should include the VDSP architecture.
(there is also a problem with variables named "bank"
which is a compiler keyword...)
Best regards.
--
St?phane Lesage
ATEIS International
2008 Feb 19
4
Patch for Analog Devices compiler & fixed-point AGC
...it, as it seems pretty easy:
- I can live with a few emulated floating point operations for gain
computation
- extract gain mantissa and exponent
- multiply fixed-point buffer by mantissa
- offset spectrum exponent before IFFT reconstruction
What do you think ?
Best regards.
--
Stephane Lesage
ATEIS International
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--- C:/Documents and Settings/Stephane/Local Settings/Temp/filterbank-HEAD.2.h Tue Feb 19 19:58:52 2008
+++ c:/Dev/Speex/libspeex/filterbank.h Thu Nov 22 14:18:38 2007
@@ -51,15 +51,15 @@
FilterBank *filterbank_new(int banks, spx_word32_t sam...
2008 Feb 19
2
VisualDSP++ with enabled BFIN_ASM
Hi
I'm trying to integrate your speex codec on our custom Blackfin board and without uCLinux. I am using ADI-supplied VisualDSP++ IDE and corresponding toolchain. My question is: Is there anybody who ported speex with enabled BFIN_ASM to VisualDSP++ ?
Best Regards,
Stefan Voss
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2008 Feb 22
1
Patch for Analog Devices compiler & fixed-point AGC
...ge all the
> names just because some compiler somewhere thought it was a good idea to
> redefine keywords. How about you just compile with -Dbank=bnk ?
Yep it's working.
What about including these 3 lines in arch.h ?
#ifdef __ADSPBLACKFIN__
#define bank bnk
#endif
--
Stephane Lesage
ATEIS International
2008 Feb 22
1
VisualDSP++ with enabled BFIN_ASM
...'m using speex because of wide-band, and I'm pretty disapointed by
performance considering it's slower than ADI's MP3 codec (10/20 MIPS for
decoding/encoding of 44100 Hz @ 64 kbit/s).
But maybe Jean-Marc would say the comparison is point-less ?
Best regards.
--
Stephane Lesage
ATEIS International
2009 Jun 18
1
Resampler saturation, blackfin performance
...)
But you allocate them with speex_alloc instead of using the VARDECL/ALLOC macros.
Converting the code to the stack_alloc mechanism could result in better performance with a scratch buffer in SRAM.
I think I can do it for mdf.c, but I would need information for preprocess.c.
--
St?phane LESAGE
ATEIS International
2008 Feb 22
1
Patch for Analog Devices compiler & fixed-point AGC
...option for me, because I need:
- a small RTOS, where I can control hardware directly, and the VDK is
just fine
- an IDE with JTAG debugging, and VDSP is good enough.
But maybe I'm wrong and we can debug using Eclipse without the gdbserver
running on the linux target ???
--
Stephane Lesage
ATEIS International
2009 Jun 14
1
Resampler saturation, blackfin performance
...2,
is it safe to enable "Round ps_size down to the nearest power of two" in the preproc ?
can we do the same trick with the echo-canceller for window_size ?
- are there buffers who could be placed in scratch memory ?
(I don't see any speex_scratch_alloc inthere)
--
St?phane LESAGE
ATEIS International
2007 Nov 21
4
Blackfin port on Visual DSP, Michael Shatz ?
...projects.
Moreover you also have examples in this directory.
Most users using IDEs are not familiar with make-files
and don't know what files to include in their projects.
(already seen this on the mailing-list)
Maybe you should split it into:
/libspeex
/libspeexdsp
/tests
--
St?phane Lesage
ATEIS International
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2007 Nov 24
0
Blackfin port on Visual DSP, Michael Shatz ?
> -----Original Message-----
> From: Jean-Marc Valin [mailto:jean-marc.valin@usherbrooke.ca]
> Sent: Thursday, November 22, 2007 12:16 AM
> To: St?phane Lesage
> Subject: Re: [Speex-dev] Blackfin port on Visual DSP, Michael Shatz ?
>
> (en passant, tu es francophone?)
oui, fran?ais, travaillant pour une soci?t? suisse ;-)
>
> St?phane Lesage a ?crit :
> >