Displaying 6 results from an estimated 6 matches for "at91sam7s".
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 ha...
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 p...
2007 Jul 04
1
Using speex on ARM7TDMI...
Hi,
I'm evaluating the libspeex library for usage in an embedded platform
based on an ARM7 TDMI micro (the ubiquitous Atmel AT91SAM7S).
In details, I'm trying to use libspeex to encode the audio stream
coming into the micro from an I2S channel and saving the encoded audio
to an SD card (currently in binary format just to test it decoded back
to the I2S channel from the saved file), but I've some difficulties
understanding...
2007 Sep 07
4
Speex and the ARM7 Core
Hello,
I'm sorry if this is not the correct place to ask this question but what I'm looking for is any data on the reality of Speex working on an ARM7 core? I'm looking at doing a few diffrent projects where I will be using a proc such as the LPC2378 with the ARM7TDMI-S core running at 72Mhz (although errata show only 60Mhz is currenlty possible).
Do you know if there is a port
2007 Sep 07
0
Speex and the ARM7 Core
...he LPC2378 with the ARM7TDMI-S core running at 72Mhz (although
> errata show only 60Mhz is currenlty possible).
>
> Do you know if there is a port that will work on this core?
>
This is a recurring question here and I too asked it some time ago.
I've done some testing with an Atmel AT91SAM7S at 55MHz and IAR 4
compiler with no luck. Even compiling Speex using the provided ARM v4
optimization and Fixed Point Macros I can only reach (narrowband
encoding) a ratio of around 2:1 (40ms to compress a 20ms audio frame).
I still hope that someone can say I'm wrong on this, but it seems to...
2008 Nov 05
3
Porting Speex to embedded 32bit
Dear Speex developers
I am going to port Speex on LPC2368
I tested Speex encoding and the mesurments shows ~40ms cpu time for one
frame
Do you know who ported speex to NXP or other 32bit platform?
Best Regards
Zohar fox
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