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Logic Pro 9 User Manual - Help Library - Apple

Logic Pro 9 User Manual - Help Library - Apple

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Audio MP3 Preferences<br />

The MP3 pane contains the following preferences:<br />

• Bit Rate (Mono/Stereo) pop-up menus: You can choose bit rates between 32 kbps and<br />

320 kbps, but the defaults are 80 kbps mono and 160 kbps stereo. These rates offer<br />

acceptable quality and good file compression. If you can afford the increased file size,<br />

you should choose 96 kbps for mono and 192 kbps for stereo streams. These settings<br />

will deliver better audio quality. You can, of course, choose even higher rates, but the<br />

quality improvement in bit rates above 96/192 kbps is minimal.<br />

• Use Variable Bit Rate Encoding (VBR) checkbox: Variable Bit Rate (VBR) encoding<br />

compresses simpler passages more heavily than harmonically rich passages, generally<br />

resulting in better-quality MP3s. Unfortunately, not all MP3 players can accurately<br />

decode VBR-encoded MP3s, which is why this option is off by default. If you know that<br />

the audience for your MP3 files can decode VBR-encoded MP3s, you can turn this option<br />

on.<br />

Chapter 44 Preferences in <strong>Logic</strong> <strong>Pro</strong><br />

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