[vorbis] mixing and 'downgrading' of vorbis-files

Kristoff Bonne kristoff.bonne at skypro.be
Thu Feb 15 13:31:22 PST 2001



Greetings,

I was wondering some things:
For a internet radio-station (e.g. using mp3 and hopefully using ogg
soon), appart from the basic 'streaming' functionallity, there are two
things that are also important
- mixing music
- 'downgrading' a signal to a lower datarate.

Concerning 'mixing' music, it would be interesting to be able to mix two
ogg-files without the need to decode and re-encode the files?
Also, can it be done to mix vorbis-file with different data-rates?

Concerning 'datarate downgrading', concider a radio-station doing
streaming a different data-rates (128 Kbps for cable or ADSL; 80 Kbps for
dual-band ISDN, 60 Kbps for ISDN, 40 Kbps for modem, ...).

SO, it would be nice to able to 'downgrade' a (say) 128 KBps to the lower
datarates without having to decode and re-encode the signal.

Can this be done with vorbis?

Cheerio! Kr. Bonne.

-- 
KB905-RIPE                                       Belgacom  IP networking
(c=be,a=rtt,p=belgacomgroup,s=Bonne,g=Kristoff)  Internet, IP and IP/VPN
kristoff.bonne at skypro.be                         Faxbox :  +32 2 2435122

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