Bus assignment/Device selection
Clicking the Bus Assignment button 
and selecting a letter from the menu allows you to assign the corresponding track to the specified output bus. However, the button is only available in projects containing multiple busses.
MIDI Input button
Clicking the MIDI Input button 
allows you to choose a MIDI input device for recording MIDI. For more information, see Recording
MIDI Output button
Clicking the MIDI Output button allows you to select soft synths and MIDI devices and the channel you want to use to play MIDI data on the track. For more information, see Setting up a MIDI controller for recording into a track on page 190.
Program button
Clicking the Program button 
allows you to change the settings of your soft synth and show/hide keyframes. For more information, see Changing the track voice on page 203 and Adding a program change keyframe on page 210.
Invert Track Phase button
Clicking the Invert Track Phase button 
reverses the phase of all events on an audio track.
Although inverting data does not make an audible difference in a single file, it can prevent phase cancellation when mixing or crossfading audio signals.
Track FX button
The Track FX button 
accesses the Audio
Freeze Track button
The Freeze Track button 
on a MIDI track converts a MIDI track to .wav file, effectively taking your soft synths offline and conserving processing and disk resources.
Mute button
Clicking the Mute button 
temporarily suspends playback of the corresponding track, allowing you to focus on the project’s remaining tracks. A muted track appears grayed out in the track view. For more information, see Muting or unmuting tracks on page 42.
Solo button
Clicking the Solo button 
isolates the track during playback by muting the project’s remaining tracks. For more information, see Soloing
Record Device Selector button
Click the Record Device Selector button 
to turn input monitoring on or off and choose a recording device.
INTRODUCING ACID SOFTWARE 19