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Full Version: Why aren't I getting 192kbps?
Hydrogenaudio Forums > Lossy Audio Compression > MP3 > MP3 - Tech
sperk
I'm, using EAC with Lame 3.97 and have it set up to encode at 192kbps VBR (according to the tutorial) but when I look at a file in Media Monkey or a Windows folder the rate varies; some songs are as low as 64 while some are over 200. What's going on?
thanks for any help.
pepoluan
Because it is Variable Bit Rate. It will use high bitrates for complex segments, and low bitrates for simple segments, trying to average near 192 kbps.

If you meant that the numbers "64" and "200" in your posting refers to the average bitrate (i.e. bitrate measured over the whole file), then this is the explanation:

In a nutshell, the way VBR is implemented is to set some parameters before encoding, which -- when applied to 90%~99% of audio files -- will achieve an average bitrate around 192 kbps plus/minus some %.

As it happens, some files compress very nicely with the chosen parameters, resulting in very low bitrates. And other files compress badly, resulting in inflated bitrates.
Mike Giacomelli
I think Windows just can't calculate bitrate correctly. It says some of my files are > 500kbps, when they're really 200k.
pepoluan
Well, MediaMonkey can. I was an avid user of MediaMonkey, until quite recently.

zipr
QUOTE(pepoluan @ Oct 31 2006, 16:27) *

Well, MediaMonkey can. I was an avid user of MediaMonkey, until quite recently.


Why'd you give up the Monkey? I've been using it for a while now, and really dig it.
pepoluan
I've joined the dark side of the force, and now use foobar2000 biggrin.gif

No, but seriously: Yes, the Monkey is really good. However there are some things I don't like. Nothing serious, just a matter of personal preference. foobar2000 is more compatible with my finicky taste wink.gif

It's still installed in my PC, btw.
LANjackal
QUOTE(Mike Giacomelli @ Oct 31 2006, 16:02) *

I think Windows just can't calculate bitrate correctly. It says some of my files are > 500kbps, when they're really 200k.


In my experience, updating to the latest version of WMP fixes that problem.
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