[tremor] Ogg/Vorbis report, FFT optimizations

Nicolas Pitre nico at cam.org
Fri Mar 12 14:49:01 PST 2004



On Fri, 12 Mar 2004, timmy brolin wrote:

> ARM is among the best when it comes to MIPS per Watt.
> A quick check in the datasheets tells me that the TI C5510 and ARM7 have about the same power consumpt)on.ID
> In order for the C5510 to consume less power than a ARM7, it must do the same job with fewer cycles.
> An educated guess based on the numbers in your paper is that a ARM7 will require about the same number of cycles (the same level of power consumption) as the C5510 if a ARM7 version of your FFT based MDCT is implemented.
> It would be very interesting to see some hard numbers on your FFT based MDCT for ARM7. I think it could be a winner.

I'm not a signal processing expert, but if given a working C implementation 
I'm willing to try optimizing it specifically for ARM.

<p>Nicolas

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