On 1 Nov 2000, EggyToast wrote re RE: [idm] Re: something about
bad M:
quoted 1 line One interesting aspect of encoding is the VBR, or variable bit-rate,> One interesting aspect of encoding is the VBR, or variable bit-rate,
I've done some experimenting: encoded the same track - total
running time 6:46 mins, at both Variable Bit Rate using the defaults
and standard 128 MP3 extraction.
The VBR file weighs in at 5,513KB and the 128 file at 6,349KB.
On playback, the VBR file has audible clicks and pops that are not in
either the original nor the 128 version. So that's not a preferable
choice from my point of view (using Xing's Audio Catalyst).
I believe it's the compression that the artists / producers use on
their original source material - it boosts the gain phenomenally, and
I think the algorithm of the MP3 ripper cannot deal with that
successfully, which results in a standing wave.
As an example : take any of the noisier tracks off A Shocking Hobby,
use your ripper of choice and encode to a standard of 128 Kbit's.
Listen back - is there any distortion (that was *not* on the original)?
NOW re-inflate the MP3 you've just made to a .wav file and using
any wave editor, *look at the sine wave*. Can you spot any
squared waves?
To do this (compressing the MP3), I have not gone to an
intermediary wave file, but used the direct ripping process. I'm
getting an unusable end result - very badly distorting audio.
If anybody can tell me which ripper gives you satisfactory results,
PLEASE let me know ! Apparently Blade works well, but does not rip
directly, only from a wave source file.
Thank you for your time - I'd really appreciate your comments.
I
*
---------------------------------------------------------------------
To unsubscribe, e-mail: idm-unsubscribe@hyperreal.org
For additional commands, e-mail: idm-help@hyperreal.org