Displaying 6 results from an estimated 6 matches for "720mhz".
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700mhz
2006 Jan 18
2
TI 6xxx platform performance
...6713 (floating point) platform. The application is a 32 channel
speech encoder. (CBR only, 8khz, 8kbps)
To get a feel for the computational load, I am running 1 second (50 frames)
of voice through the encoder.
My profile of the 6416 indicates I'm at 27.4M cycles/channel. I need to get
below 720Mhz/32 channels = 22.5M cycles per channel. I did a little work on
inner_prod() and normalize16() and I'm confident I can get 32 channels by
optimizing 5 or 6 functions. I expect these numbers to translate over the
DM642.
Symbol Name Count cycle.Total: Incl.
cycle.Total:Excl.
compute_weight...
2006 Jan 19
2
TI 6xxx platform performance
...a feel for the computational load, I am running 1 second (50
frames)
> of voice through the encoder.
You might want to use a bit more just so you don't see the
initialization complexity at all.
> My profile of the 6416 indicates I'm at 27.4M cycles/channel. I need to
get
> below 720Mhz/32 channels = 22.5M cycles per channel. I did a little work
on
> inner_prod() and normalize16() and I'm confident I can get 32 channels by
> optimizing 5 or 6 functions. I expect these numbers to translate over the
> DM642.
have you tried defining PRECISION16? That should reduce the...
2006 Jan 18
0
TI 6xxx platform performance
...a feel for the computational load, I am running 1 second (50 frames)
> of voice through the encoder.
You might want to use a bit more just so you don't see the
initialization complexity at all.
> My profile of the 6416 indicates I'm at 27.4M cycles/channel. I need to get
> below 720Mhz/32 channels = 22.5M cycles per channel. I did a little work on
> inner_prod() and normalize16() and I'm confident I can get 32 channels by
> optimizing 5 or 6 functions. I expect these numbers to translate over the
> DM642.
have you tried defining PRECISION16? That should reduce the...
2006 Jan 19
2
TI 6xxx platform performance
...a feel for the computational load, I am running 1 second (50
frames)
> of voice through the encoder.
You might want to use a bit more just so you don't see the
initialization complexity at all.
> My profile of the 6416 indicates I'm at 27.4M cycles/channel. I need to
get
> below 720Mhz/32 channels = 22.5M cycles per channel. I did a little work
on
> inner_prod() and normalize16() and I'm confident I can get 32 channels by
> optimizing 5 or 6 functions. I expect these numbers to translate over the
> DM642.
have you tried defining PRECISION16? That should reduce the...
2006 Jan 19
0
TI 6xxx platform performance
...a feel for the computational load, I am running 1 second (50
frames)
> of voice through the encoder.
You might want to use a bit more just so you don't see the
initialization complexity at all.
> My profile of the 6416 indicates I'm at 27.4M cycles/channel. I need to
get
> below 720Mhz/32 channels = 22.5M cycles per channel. I did a little work
on
> inner_prod() and normalize16() and I'm confident I can get 32 channels by
> optimizing 5 or 6 functions. I expect these numbers to translate over the
> DM642.
have you tried defining PRECISION16? That should reduce the...
2006 Jan 18
2
Errors in speex lib with Blackfin
Hello!
I'v downloaded speex lib 1.1.11.1.
I am trying to port speex lib to Blackfin processor.
I am using VisualDSP++ 4.0.
If I am compiling source codes with using floating point everything
ok.
When I am compiling with FIXED_POINT defined everything's ok and code
works about two times faster.
But when I am defining BFIN_ASM I am getting several compiling errors
in Blackfin assembler