Re: OT That 'sizzle sound' of Mp3s

[andy butler <akbutler@tiscali.co.uk>]

Charles Zwicky wrote:
> 
> You should record a 20-20k sweep tone and convert it to MP3.  You would 
> be surprised.
> 

You're right, I was :-)

Didn't expect it to reproduce a smooth sweep.

It's a good test, but doesn't show up the limitations at all.
(dunnow, maybe in a better listening environment, there certainly were a
  few artefacts revealed when mixing out of phase with the original) 

Next I tried with white noise,
and the metallic sizzle appeared like magic.




andy butler

( tests done with Audition, and mid-fi speakers, sitting
  by noisey pc. 
  mp3 at 128bps
  well, really it was 64bps mono,)