--- Marek Peteraj <[EMAIL PROTECTED]> wrote: > On Sat, 2004-10-09 at 22:41, Josh Coalson wrote: > > --- Marek Peteraj <[EMAIL PROTECTED]> wrote: > > > Also i'd like to ask whether a no-lax 192kHz mode is planned in > flac, > > > seems like 192kHz isn't directly supported although flac can > compress > > > such rate in lax mode. > > > > no, it's a limitation of native FLAC. if the only reason to > > use --lax is for 192kHz, the files will still be streamable > > but some hardware players may not support a sample rate that > > high. > > It would be cool to have a native 192kHz support since it will become > the standard in consumer audio in a few years i believe and it's a > heavily used samplerate in studios these days. Is it possible to add > 192kHz while retaining backwards compatibility or would it break the > current specs?
no, it would break slightly. maybe no one would notice since not many people are using 192kHz stuff. also, 192kHz is a bit too much demand to place on all h/w makers. 96kHz is pushing the limit of what low-power devices can decode using straight libFLAC. using --lax just for 192kHz will not inhibit the file from being streamable or usable in any other way that a subset file is, except if a player cannot handle 192kHz to begin with. > A theoretical/technical question - what are the differences between > meridian lossless packing(MLP) used in DVD-A and FLAC? From the > technical point of view, would it be possible to replace MLP with > FLAC > or are there any technical hurdles? MLP is proprietary, not much is publically known about it. 'replace' is a little too general. FLAC cannot be used on a DVD-A disc because it's not part of the spec. MLP also has a rate limiting feature. some people believe that you can always rate limit with MLP and still be lossless when this is actually not mathematically possible; OTOH FLAC is always lossless. aside from that I think FLAC could be used to encode anything that MLP can. > > > My last question - is there any chance for flac to support w64 > files? > > > That would be cool since it would allow to compress >2Gb files. > > > (not sure if flac can compress >2Gb raw files) > > > See http://www.mega-nerd.com/libsndfile/ for reference. > > > > never heard of w64 before now. if it's close to WAVE it's > > more likely. is there a spec? > > Unfortunately no, the only source for specs is the abovementioned > link, > the libsndfile library supports reading and writing of w64 files in > various resolutions. using libsndfile may be an option, I'll make a note of it. Josh _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com _______________________________________________ Flac mailing list [EMAIL PROTECTED] http://lists.xiph.org/mailman/listinfo/flac
