PDA

View Full Version : Rippare ogg vbr con soundjuicer


Cobra78
05-11-2006, 14:43
Salve Gente.

Qualcuno sa come bisogna modificare il comando di ripping in ogg di Sound Juicer per creare file in vbr?

Attualmente lsa stringa è la seguente:

audio/x-raw-float,rate=44100,channels=2 ! vorbisenc name=enc quality=0.5 ! oggmux

Zorcan
05-11-2006, 15:21
Dalla FAQ di Vorbis (http://www.vorbis.com/faq/):

Vorbis' audio quality is not best measured in kilobits per second, but on a scale from -1 to 10 called "quality". This change in terminology was brought about by a tuning of the variable-bitrate algorithm that produces better sound quality for a given average bitrate, but which does not adhere as strictly to that average as a target.

Anche in quest'altra pagina (http://jthz.com/mp3/) si dice:

[...] Ogg Vorbis (and VBR in MP3) does this by automatically tuning a compression level for each particle of the input based upon the relative complexity of that slice of sound. [...]

Setssa cosa qui (http://breakpoint.untergrund.net/miscencode.php):
Let's start out with Ogg Vorbis, since this is the easiest one. Ogg Vorbis doesn't care much about bitrate, since it's a variable bit rate (VBR) Codec. [...]

Cobra78
06-11-2006, 10:15
Devo dedurre che l'ogg è vbr di default? Bene allora :D

Zorcan
06-11-2006, 12:52
Devo dedurre che l'ogg è vbr di default? Bene allora :D
Così mi pare di aver capito. :)