Displaying 2 results from an estimated 2 matches for "mips4k".
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2006 May 01
2
Re: speex echo cancellation limitations
...I've focused mainly
on acoustic echo, which is a harder problem (but line echo should work
as well).
> I'm looking for ways to further reduce the cycle count besides enabling fixed
> point and possibly providing some inline assembler for a fixed*.h file (my
> target processor is mips4k series... no floating point).
I think most of the gain would come from using an FFT optimised for your
CPU. I've made it (relatively) easy to swap FFTs through my fftwrap.c
wrapper.
> I observe experimentally that the computation time on a per sample basis is
> not heavily dependent on...
2006 May 02
0
Re: speex echo cancellation limitations
...; on acoustic echo, which is a harder problem (but line echo should work
> as well).
>
> > I'm looking for ways to further reduce the cycle count besides enabling
> > fixed point and possibly providing some inline assembler for a fixed*.h
> > file (my target processor is mips4k series... no floating point).
>
> I think most of the gain would come from using an FFT optimised for your
> CPU. I've made it (relatively) easy to swap FFTs through my fftwrap.c
> wrapper.
>
> > I observe experimentally that the computation time on a per sample basis
>...