Apple Soundtrack Pro 3 User Manual

Page 440

• Audio Coding Mode pop-up menu: Specifies the audio channels of the encoded stream.

The audio coding mode affects settings such as the available bandwidth and surround
channel preprocessing.

Choose the audio
channel grouping for
the encoded stream
from the Audio Coding
Mode pop-up menu.

For example, “3/2 (L, C, R, Ls, Rs)” means three front channels (left, center, right) and
two rear (surround) channels. “2/0 (L, R)” is essentially a standard stereo file. If you
choose the Automatic setting, Compressor makes its best guess at the intended audio
coding mode, based on available source audio files.

Note: “S” stands for a single rear “Surround” channel.

3/1 channels

3/0 channels

2/2 channels

1/0 channels

2/1 channels

2/0 channels

(LFE option not available)

3/2 channels

LFE

• Enable Low Frequency Effects checkbox: Select this option to include the LFE channel in

the encoded stream.

Note: This option is not available for 1/0 mono or 2/0 stereo.

• Sample Rate pop-up menu: Specifies the sample rate. All files intended for video and

audio DVD authoring must have a 48 kHz sample rate as per the DVD specification. The
32 kHz and 44.1 kHz sample rates are only available when Generic AC-3 is the target
system.

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Chapter 20

Exporting Multitrack Projects