Dither when bouncing to mp3?

Back in 2008, someone noticed that Logic does not provide any dithering options on an MP3 bounce.
To answer his questions, the lossy MP3 compression adds more noise than dither, so you really should start with a 24-bit master and convert directly to MP3 without any dither. The reason Logic doesn't offer the option is because you should not be using dither.
I regularly use Logic to bounce a mixing and mastering session directly to MP3 or AAC so that the client can hear it with minimal bandwidth. The only issue I have is whether 48 kHz or 44.1 kHz will be appropriate for my client.
In a little more detail, dither is basically the process of adding noise to a signal so that the bit depth can be reduced without significantly increasing the existing quantization noise. On a 24-bit file (from the 32-bit Logic mix) dither adds noise at about -144 dB, which is incredibly low. Dither on a 16-bit adds noise at about -96 dB. In both of those cases, POW-r dither uses noise shaping to hide this added dither noise behind the existing audio frequencies, hoping that you won't hear anything. When you compress to MP3, the lossy process results in noise that is much stronger than -96 dB, but it still tries to hide behind the audio in much the same way as POW-r (give or take some proprietary algorithms).
In other words, you don't need dither because MP3 is basically an equivalent process.

Hey all:
To help simplify my questions: Does anyone bounce to mp3 in logic? and if so what consideration are being made regarding Dither?
Id appreciate any comments regarding this..
Thanks

Similar Messages

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    MUYconfundido wrote:
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    !http://farm5.static.flickr.com/4084/4996323899_071398b89a.jpg!
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