[tremor] Ogg/Vorbis report, FFT optimizations

[timmy brolin]

>> 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.

That is actually not neccesary.. One advantage gained by using FFT is that there are already highly optimized FFT routines available for most mordern processors.

/T

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