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Hydrogenaudio Forums > Lossless Audio Compression > FLAC
Lokutus01
Hello,

are there any optimized presets like "-0" or "-8" for music with 24bit/88,2KHz- and 24/96KHz-material in flac?

I realized, that wavpack scales far better in compression ratios (20% in some examples) on high bitrates, but radically slows down on decoding as well (>50% slower), which is critical for me.

Is it the complete different philosophy of these different codecs, which justify such differences on high sample-rates/bit-depths or is there room for optimization?

Kind regards
Andreas
jcoalson
the reference encoder is not really tuned yet for hi-res/high sample rate yet; it's one of the things I'll be looking into after the next releae.

Josh
Lokutus01
Hey Josh,

thanks for your response!

After the next release means something like 1.14, right?

I have so much high-res material to compress at the moment, that the different compression-rates really make a difference.

Still: I wanna thank you for offering this nice codec, giving me the opportunity to store all my music losslessly in such a elegant way.

Andreas
shadowking
You could try wavpack without the -h switch which will slow decoding and also use -x which is good with some artificial music / non-standard sample rates. You can add -f to get a decode as fast or faster than flac.

Example:

wavpack.exe -x

wavpack.exe -fx


jcoalson
QUOTE(Lokutus01 @ Aug 11 2006, 02:51) *
After the next release means something like 1.14, right?

it will be 1.1.3

QUOTE(Lokutus01 @ Aug 11 2006, 02:51) *
I have so much high-res material to compress at the moment, that the different compression-rates really make a difference.

yeah, it probably won't get much better until after 1.1.3, but I have added FLAC->FLAC encoding to the command-line encoder which also copies the metadata, so in the future it will be trivial to re-FLAC a library.

Josh
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