Aardvaak
2001-Jul-02 06:20 UTC
[vorbis] Calculating encoded file size with different format
Hi there, Irealized different codecs can encode achieve different compression ration with different files. The point is a wma *can* result in a smaller file fo one song. For another one (all other thng like bitrate... being equal), mp"pro or vorbi or whatever you like can encode better. I guess it is possible to calculate the average resulting size using different encoders _before_ encoding of course. Did you heard about a program that could tell me for one given input file, which codec will achieve the smallest size? It is possible to do that in a batch way? After all, with all these different decoders we hve in players, with the total transparency we have, that could be great for saving space if you're not absolutely concerned with quality (that is the case for people who have an archive copy of their song (CD or Monkey's Audio) and don't have great audio gear; like most laptop speakers.>>>Wake up Neo. The MaTRiX has you...<<<--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
Robert Voigt
2001-Jul-02 11:25 UTC
[vorbis] Calculating encoded file size with different format
On Monday 02 July 2001 15:20, Aardvaak wrote:> Hi there, > > Irealized different codecs can encode achieve different compression ration > with different files. The point is a wma *can* result in a smaller file fo > one song. For another one (all other thng like bitrate... being equal), > mp"pro or vorbi or whatever you like can encode better. > > I guess it is possible to calculate the average resulting size using > different encoders _before_ encoding of course. Did you heard about a > program that could tell me for one given input file, which codec will > achieve the smallest size? It is possible to do that in a batch way?Doesn't make sense. The easiest way to tell exactly the resulting file size is to encode. And if different encoders produce different file sizes, they probably produce different quality too. If you don't care about those differences in quality, just stick to one encoder and choose a lower bitrate. Different encoders produce different file sizes because each has its own technology. Ogg Vorbis is open. If someone has an improvement, he can add it to the code. The more people do so, the better Vorbis will get. There will be no need for different codecs. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.