[vorbis] Is this just anti-Ogg FUD?

Giuliano Pochini pochini at shiny.it
Sat Dec 28 09:50:01 PST 2002



On Thu, 2002-12-26 at 18:51, Jem wrote:
> Ogg has to this day, fundemental problems with low frequency encoding. 
> Sometimes refered to as "pre-echo aliasing" ... it is something that is a 
> problem for music (primarly electronic which is why I don't use it) with 
> low end bass and subsonics.

You should ask your friend to provide us some samples to test. Vorbis
applies a low-pass filter, so low frqs shouldn't be affected by
compression. Lossy stereo can damage bass effects because we are very
sensitive to phase differences between channels, but vorbis try to save
stereo information at low frqs, so... I don't know :)

> Most people don't realise
> that you need a certain amount of distance from the generation source to
> your ear for the bass wave to resonate correctly.

No, it depends on many factors: placement of the speakers, how the walls
reflect the sound, etc...

<p>> This is why sometimes 
> when you are at a rave and you could be 10 feet from the bass bins and 
> there is very little bass, but you step back 20 feet and its knocking you 
> on your ass.

Sometimes standing waves play funny tricks :)

Bye.

<p>--- >8 ----
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