Apple Soundtrack Pro 3 - Manual (Page 330)

To turn off a send in a channel strip
Do one of the following:
µ
Deselect the checkbox to the left of the send name.
µ
Control-click the send, then choose Disable Send from the shortcut menu.
To turn on an effect again
µ
Select the checkbox to the left of the effect name.
Setting the Overall Project Volume Level
As you finalize a project mix, you set the overall project volume to the appropriate level.
Certain formats or methods of distribution may require that the project conform to a
particular maximum level. In general, you set the overall volume of the project to the
highest level at which no clipping occurs at any point in the project.
Clipping occurs when the digital audio signal exceeds the maximum level that can be
reproduced accurately. Unlike analog audio, digital audio is completely unforgiving of
clipping, which creates sharp distortion of the audio signal. Soundtrack Pro projects clip
whenever the output displayed in the level meters exceeds zero decibels (0 dB). It’s
important to eliminate clipping from projects before exporting the final mix. For more
information about digital distortion, see
Audio Fundamentals .
You can monitor audio output levels using the level meters in the Mixer, the Meters tab,
and in individual track headers. In the Mixer, each channel strip has level meters that
show the levels for that channel strip. In the Meters tab, the level meters show the levels
for all submixes assigned to physical output channels. For more information about setting
up physical outputs, see
Setting the Audio Input and Output .
The Meters tab includes additional controls and displays to help you maintain proper
audio levels and eliminate clipping.
Level meters
Reset button
Peak Value and
Location display
6-channel meter 2-channel meter
330 Chapter 12 Basic Mixing in Soundtrack Pro