3 ms·
it’s still LPC-ish, yes. a lot of the work in modern codecs goes into good VQ for the codebook, and better bit allocations. LPC10 sounds like ass, but damn is
by hprotagonist 6y ago
it’s still LPC-ish, yes.
a lot of the work in modern codecs goes into good VQ for the codebook, and better bit allocations.
LPC10 sounds like ass, but damn is it cheap on bits!
- kragen 6y agoMmm, ass! My favorite! The RPE in RPE-LTP — which is also one of the two excitations in LPC-10 — is indeed fairly precisely a fart sound, although the usual euphemism is "quasi-periodic pulses". That's because your larynx sounds like a fart if it doesn't have a vocal tract glommed onto the end of it to filter it with its recursive linear resonances. Fortunately sox has LPC-10 built in, so you can enjoy the tasty tasty 80s ass quite simply if you install sox: sox foo.wav foo.lpc10 play foo.lpc10 The LPC-10 code in Sox says it was translated from Fortran with f2c sometime around 1998, and as far as I can tell, nobody's been changing it since then. That's a nice counterpoint to the fucking "this web page doesn't work because nobody has changed it in the last five years" WWW. https://web.archive.org/web/20200420003350/https://www.jwz.org/doc/cadt.html https://web.archive.org/web/20200420003350/https://www.jwz.o...
- hprotagonist 6y agoah good stuff. I studied with one of Rabiner’s old coworkers, so this is a fun trip.