Mailing List Archive: audio in ogg?

audio in ogg?

May 11, 2003, 8:47 PM

Post #1 of 3 (1030 views)

Any particular reason why audio is stored as mp3 instead of vorbis?

Personally, I've seen that vorbis is easier on the cpu to encode
(encodes faster), and from what I've read, is much better quality at
lower bitrates.

Then again, that would seriously hinder my desire to have an svcd export
ability for saved shows (man, THAT would be cool - reencode saved shows
to svcd during idle.. heh, oh well). Though it might help for live tv
stuff.

-Chris

Re: audio in ogg? [ In reply to ]

ijr at po

May 11, 2003, 9:01 PM

Post #2 of 3 (997 views)

Permalink

On Sunday 11 May 2003 11:47 pm, Chris Petersen wrote:
> Any particular reason why audio is stored as mp3 instead of vorbis?
>
> Personally, I've seen that vorbis is easier on the cpu to encode
> (encodes faster), and from what I've read, is much better quality at
> lower bitrates.

It's much harder to encode, at least, last I checked it was something like 3x
slower to encode to equivalent sized oggs than it was to go to mp3. The
other thing is there isn't a 'low-latency encode' mode to the ogg encoder --
you can't give it data, and get back the compressed portion for that bit of
data, you have to wait until it's done, and that can be several seconds
later.

Isaac

Re: audio in ogg? [ In reply to ]

lists at forevermore

May 11, 2003, 9:06 PM

Post #3 of 3 (1018 views)

Permalink

> It's much harder to encode, at least, last I checked it was something like 3x
> slower to encode to equivalent sized oggs than it was to go to mp3. The
> other thing is there isn't a 'low-latency encode' mode to the ogg encoder --
> you can't give it data, and get back the compressed portion for that bit of
> data, you have to wait until it's done, and that can be several seconds
> later.

ahh, weird. was sure that it was faster for me to encode ogg than mp3
(but that's not a knowledgeable observation). dunno. the low-latency
thing makes a lot of sense, though. thanks for the info.

-Chris