Apple Logic Pro X - Manual (Page 723)

Chapter 21 Share projects 723
Because not all media players can accurately decode VBR-encoded files, this option is off by
default. If you know that your target listeners can decode VBR-encoded files, you can turn this
option on.
•
Quality pop-up menu: Keep this set to Highest (the default) whenever possible. Reducing the
quality shortens the conversion process, but at the expense of audio quality.
•
“Use best encoding” checkbox: Like the Quality parameter, if you deselect this option, you
shorten the time needed to bounce the file at the price of audio quality. This should always be
selected, unless conversion time is an issue.
•
“Filter frequencies below 10 Hz” checkbox: When this option is selected, frequencies below 10 Hz
(which usually aren’t reproduced by speakers, and aren’t audible to human ears at any rate)
are removed. This leaves slightly more data bandwidth for the frequencies that are audible,
resulting in an improvement of the perceived quality. Only deselect this option if you’re
experimenting with subsonic test tones.
•
Stereo Mode pop-up menu: Choose Joint Stereo or Normal stereo mode. Depending on the
original file, these settings may (or may not) offer any audible difference. Experiment with both
settings to see which provides better results.
•
“Write ID3 tags” checkbox: Writes ID3 tags to the file.
•
ID3 Settings button: Opens a dialog where you can edit and configure ID3 tags.
To edit an ID3 tag, double-click any of the Content column fields to the right of the
corresponding ID3 Frame column entry, and enter your text.
Select the “Use default values” checkbox to display default settings for certain Content
columns, such as the Project Title and Tempo (Beats Per Minute) columns. Selecting “Use
default values” also sets the Initial Key column to the first entry shown in the Signature track.
(This defaults to C if no key has been set for the project).