
Chapter 4 Working in the Mixer Windows 43
2 In the Bounce dialog, activate the AAC option, choose a file name and destination, then
click Bounce.
The AAC Sound Settings window offers the following settings:
 Format: Displays the selected compression codec.
 Channels: Allows you to choose between a mono or stereo output file.
 Rate: A number of predefined sample rates are available in this pop-up menu,
ranging from 8000 Hz to 48,000 Hz. The Recommended option will select a rate
based on choices made in the Advanced Settings.
 Show Advanced Settings: Activate this checkbox to show further AAC settings in the
area below.
 Quality (Sample Rate Converter): Sets the quality of the sample rate conversion.
Reducing the quality accelerates the conversion process, but at the expense of audio
quality. Keep this set to Best whenever possible.
 Bit Rate Format: You have a choice of Constant or Variable Bit Rate: Variable Bit Rate
(VBR) encoding compresses simpler passages more heavily than passages that are
(more) harmonically rich. Not all AAC players can decode VBR-encoded AAC data,
which is why this option is set to Constant Bit Rate by default.
 Target Bit Rate: Sets the bit rate for the AAC export. The more kilobits per second, the
better the audio quality.
 Precedence: Allows you to connect the bit rate and sample rate options. If you set
Precedence to Sample Rate, the available Target Bit Rates are dependent on the
selected Sample Rate. If you set Precedence to Bit Rate, the options available in the
Sample Rate menu are dependent on the chosen Bit Rate setting.
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