search for: o999

...ple wave file at http://dagobah.ucc.asn.au/speextest/sample.wav if anybody wants to compare times. I'm curious now why my machine is slower - perhaps it's something about the way I've compiled it. (Compiles by default with -O2, and I can slice another .07 seconds off by compiling with -O999 :) > Sending it to the list is a good idea I think. If you want to know what > the code does... it's simply calculating the distance between an input > vector and a list of vectors (codebook) and it returns the id's of the N > closest (n-best) codebook vectors. Thanks. I'm...

...agobah.ucc.asn.au/speextest/sample.wav if anybody > wants to compare times. > > I'm curious now why my machine is slower - perhaps it's something > about the way I've compiled it. (Compiles by default with -O2, and I > can slice another .07 seconds off by compiling with -O999 :) Maybe not everything got re-compiled and some parts were left with -g or something? With the files you sent, I get (on my PIII 1 GHz, with -O3): speexenc --comp 3 --quality 3 sample.wav sample.spx 0,65s user 0,00s system 100% cpu 0,647 total trange... > Thanks. I'm beginning to grasp i...

...iled and some parts were left with -g or > something? With the files you sent, I get (on my PIII 1 GHz, with -O3): > speexenc --comp 3 --quality 3 sample.wav sample.spx > 0,65s user 0,00s system 100% cpu 0,647 total > > strange... I'm recompiling the lot, no debugging, -O3 (or -O999). The packaged speex1.0beta3 from debian runs in about the same time. I'll just blame it on some weird quirk of my laptop. Thanks though. > > at the codebook search - next culprit on the list as given by gprof > > (and OPTIMIZE :) > > This part is a bit more obscure, but I t...

I have a patch for libspeex, which optimises some of the loops in vq_nbest and vq_nbest_sign that speeds up encoding - my results: test file: 10s wav file at 16000 Hz, mono encoding with wideband --quality 3, --comp 3 machine: PIII-900Mhz, 256MB RAM before: 2.78s after: 2.38s I'm still trying to grasp the code (I'm just a coder, no background in sound processing), and just optimised