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Re: ogg quality problem with ffmpeg



Alex Samad wrote:
On Sat, Mar 08, 2008 at 11:57:14AM -0800, David Fox wrote:
On 3/8/08, asm4 <asm4@lehigh.edu> wrote:

the nominal bit rate shown by xmms or mplayer on out.ogg is 0k and
average bit rate is 41.7kbps
I don't think you can compare bit rates, ogg has better compression than
mp3 so 128kb ogg is suppose to sound better than 128kb mp3

hi all,
thanks for the replies. i compared the bit rates of 2 ogg files. one
created by using ffmpeg (0k nominal, 41k avg), the other created by
dumping a wav and converting to ogg using audacity (160k nominal,113k avg).

Is the quality (or lack of) extremely noticable? Ogg is variable rate,
and by "VOB" i'm thinking "movie",
where there may be a large variation of sound sources, compared to for
example a music CD.

the lack of quality is extremely noticable. the VOB is indeed a video
recording of a performance and i just wanted to get the sound. i can
live with dumping wav and converting using audacity. its just too much pain.


Then again, it could be an ffmpeg problem. I don't have any ready vobs
here to test. But I routinely dump audio from other sources (such as
avi) and encode those with ffmpeg, but not to ogg, usually a52 because
I do a fair amount of dvd encoding of avi movies.

i have 0.cvs20070307-6 of ffmpeg and this seems to be the latest
version. am i doing something wrong? or is there a better way of getting
There's a later version 20071206 but it's in the debian-multimedia repository.

i will wait till it makes into unstable. its not a pressing issue. thanks for the suggestions.


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