Re: [mpc-general] Re: Adding a lossless mode to MPC SV8

Christian HJ Wiesner <[email protected]> Sun, 05 Oct 2003 10:04:41 +0200
Newsgroups gmane.comp.audio.mpc.devel,gmane.comp.audio.mpc.general
Message-ID <[email protected]>
Jo=C3=ABl Bourquard wrote:

>I like the mixing lossless/lossy channels idea a lot. This way concerts
>could be encoded with full quality for the front channels, without
>bloating the filesizes :-)
> =20
>
Thats only one possible way of using it, for different channels ina=20
multichannel file, but i was thinking about using lossless also for very=20
complex passages, like a fortissimo in orchestral music or explosions=20
etc. in movie soundtracks.

>Also it would be good if for a given channel, lossy <-> lossless
>switching could be done on a reasonable boundary (~1 second? ~1 frame?).
>Even more space can then be spared on unimportant parts of a track.
> =20
>
Wavpack4 will allow that for every block of data according to David=20
Bryant, so we should be able to do the same in MPC IMHO.

>Third, I'd propose to separate entropy coding from the rest (just as the
>psymodel would be modularized too). This way I could implement a nice
>arithmetic coding layer for those who want to save maximum space ;-)
>Regards Jo=C3=ABl
>
:O ..... ehehehe, i was hoping for that to happen, some high quality=20
technical talking on the ML. I wonder if Frank is capable to NOT comment=20
on this :D :D !!! But please dont expect me to understand what you are=20
talking Joel ;) ....

Regards

Christian
MPC and matroska project admin

http://mpc.corecodec.org