Displaying 6 results from an estimated 6 matches for "at91sam7s256".
2006 Nov 16
2
Speex WBB decoder on AT91SAM7S microcontroller?
Hi,
I would like to compile the Speex fixed-point, WB decoder for an
AT91SAM7S256 ARM7 microcontroller using gcc-arm-elf and was wondering,
before I roll up my sleeves and try to figure out all the autoconf
things that I'm really unfamiliar with, if anyone else has done this and
can share their experiences.
I see in the archives that some folk have compiled for this proc...
2009 Dec 15
1
encoding time
Good afternoon!
Thank you for your product Speex. We want to use it in
microcontroller AT91SAM7S256 (48 MHz).
We applied the following:
#define FIXED_POINT
#define DISABLE_WIDEBAND
#define DISABLE_HIGHPASS
#define MANUAL_ALLOC
#define OS_SUPPORT_CUSTOM
at
speex_encoder_init(&speex_nb_mode);
speex_decoder_init(&speex_nb_mode);
tmp=2;
speex_encoder_ctl(st, SPEEX_SET_QUALITY, &a...
2009 Dec 21
1
encoding time
On Mon, 21 Dec 2009 21:00:01 +0100, <speex-dev-request at xiph.org> wrote:
> Thank you for your product Speex. We want to use it in
> microcontroller AT91SAM7S256 (48 MHz).
I'd strongly advice to use a higher performance micro. Let's consider that
you'd succeed in getting it working right after optimizations. The time
you want to add other speex features or other functionality you may run in
trouble again. It is perhaps worth the effort on...
2006 Mar 28
0
ARM7 decode resource requirements
...mory down
to this) and about half the performance (takes about 10ms to decode 20ms of
speech). I have been told there is some floating point in the wideband
(from Jean-Marc) but since it runs for me have not done any more (plus the
project is now on the backburner).
I hope to test it on an Atmel AT91Sam7S256 part soon. (I have a eval board
of each)
I am using the GCC compiler in the CrossWorks toolset.
I would be interest to hear how it all works out for you. I would
also like to try the Tremor code on the Arm7 but have not got the chance
yet.
Good luck
Tom
On 3/28/06, Anderton, John <john.an...
2006 Nov 16
0
Speex WBB decoder on AT91SAM7S microcontroller?
...y hard to say what the requirements are because it depends
a lot on the exact CPU you're using and (for ARM) the configuration of
the cache and the speed of the bus.
Jean-Marc
Dennis Greenwood a ?crit :
> Hi,
>
> I would like to compile the Speex fixed-point, WB decoder for an
> AT91SAM7S256 ARM7 microcontroller using gcc-arm-elf and was wondering,
> before I roll up my sleeves and try to figure out all the autoconf
> things that I'm really unfamiliar with, if anyone else has done this and
> can share their experiences.
>
> I see in the archives that some folk have...
2006 Mar 28
2
ARM7 decode resource requirements
Hi all
I'm looking in to using speex for an ARM7 based speech decode development
(note we need the decode only). My hope is that we should be able to run the
decoder (in wideband mode) real time on the ARM7 (40MHz) without any
problems (the difficulty would be in the encode - but we plan to run that
offline on a PC - so we should be OK). Can anyone confirm that this is the
case please?
Also