[LAU] Rolling off high frequencies when mastering?

[jurgen]

you can't judge mp3 etc, they roll of much earlier due to their perceptual algorithm. Have a look into a spectrum analyzer!

Also, a CD is rolling of REAL SHARP at 22k due to the Nyquist frequency.

J

On Apr 21, 2010, at 12:50 PM, Reuben Martin wrote:

> Yo, back on Tuesday 20 April 2010 Ken Restivo was all like:
>> Kind of a general mastering question, but obligatory Linux screenshots of JAPA are included, I promise.
>> 
>> I've noticed with some professional cd's/oggs/mp3s I have, the high end is rolled off at around 20Khz.
>> 
> 
> What makes you think that is due to mastering? Consider the fact that most mics freq response begins to roll off between 16k and 18k...
> 
> -Reuben
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