[vorbis] 24/96 ?

fungus vorbis at artlum.com
Wed Dec 19 11:56:31 PST 2001



Moritz Grimm wrote:

> Wilson wrote:
> 
>>>Since the average human can't percieve tones higher than
>>>~20kHz, 44.1kHz are all you need.
>>>
> 
>>I think you're getting samples and cycles mixed up.
>>I for one am hyped for DVD-Audio and 24/96 sources.
>>Most CDs sound ghetto; like some ugly monster chewing on my ears.
>>
> 
> Either this is because you're listening to badly mastered CDs or your
> mind plays tricks on you ("this is CD, i CAN'T sound good). I don't
> really believe that you could successfully ABX 24/96 vs. 16/44.1.
> 

<p>Ummm....so why do they make CD players with oversampling,
bitstream, etc.?

<p><p>> If there's crap on CD (or DVD), you will/should hear it. A very good CD
> can sound very good, and this has little to do with bit resolution and
> sample rate. (Well, except you're Batman with ears more sensitive to
> high frequencies. ;) )
> 

<p>Even with 44.1kHz you can still get aliasing in the sampling and
lose/create signals.

<p>Imagine I have a 22.5kHz sine wave and I sample it at 44.1kHz.

Depending on the pahse of the moon, I could sample it either
at the peaks or at the zero-crossing points. One would produce
a signal at the end of the day, the other would produce silence.

Signal processing is a lot more complex than "a 44.1kHz sample
rate can produce a 22.5kHz waveform".

<p>
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