On Thu, Nov 13, 2014 at 7:12 AM, Alexander E. Patrakov <patrakov at gmail.com> wrote: > 13.11.2014 01:16, Andrey Semashev пиÑ?еÑ?: >> >> However, the other three presets do have different performance and >> quality. In >> my test results [1] -mq is about 2 times faster than -vhq, and -hq is >> somewhere in between. Performance wise, there should be no problem with >> -vhq >> on modern CPUs, but maybe the little extra would be desired in embedded >> domain >> to conserve battery. > > > Well, in the embedded domain, there is usually no FPU or a bad FPU, and a > different resampler (hint: speex-fixed-X) is needed anyway :) Most current ARM CPUs have NEON, and libsoxr has optimizations for it. I didn't benchmark it, but since soxr is faster than speex on x86, it seems possible for it to be faster on ARM as well. It'be interesting to bench it though.
