Sessions & Tracks : Tracks : Edit Window Views : I/O View

I/O View
In the Edit window, I/O view provides Input and Output selectors on audio, Auxiliary Input, Master Fader (output only), MIDI, and Instrument tracks (corresponding to the controls of the same name in the Mix window).
To show the I/O View in the Edit window:
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Select View > Edit Window > I/O.
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Channel strips in the Mix window always display Input and Output selectors as well as volume and pan values, so there is no I/O view display option for the Mix window.
Volume/Peak/Channel Delay Indicator
The Volume indicator on an audio track has three display modes: Volume, Peak, and Channel Delay.
To toggle the Volume indicator display:
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Control-click (Windows) or Command-click (Mac) the indicator to toggle it between the following modes:
Volume Indicator (and Pop-Up Fader)
Shows the current volume, or input level of a track as set by the track Volume fader. In I/O view (Edit window), click the Volume indicator to display the Volume pop-up fader, which can be used to adjust the volume.
 
Peak Indicator
Functions as a headroom indicator based on the last peak playback level. To reset the peak counter, click anywhere in the meter. Values range from – (no signal) to 0 dB.
Pan Indicator
The Pan indicator displays the current pan setting of a track. Pan values range from <100 (full left) to 100> (full right). Pan controls are only available for stereo tracks or for mono tracks routed to a stereo output.
In I/O view (Edit window), click the Pan indicator to display the Pan pop-up slider, which can be used to adjust panning.
 
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Greater-than-stereo multichannel tracks do not provide a Pan indicator in I/O view. You can view and adjust multichannel panning in the track’s Output window or in the Mix window.
Pan Slider
The Pan slider controls the balance of a track between the assigned output pair. It only appears if you are using stereo tracks or mono tracks routed to a stereo output.
The Pan slider on a MIDI track is effective only if you are controlling a sound module that supports MIDI panning.
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Send Pan controls can be linked to the Main Pan controls of a track by enabling the Follow Main Pan button in Send window.
Volume Fader
The Volume fader controls the playback level of a track when it is playing back, and the monitor level of the track when it is recording. You can link the record and monitor levels by enabling the Link Record and Play Faders option in the Operation preferences.
The maximum fader gain for a volume fader is +12 dB.
MIDI Volume Fader
If your MIDI sound module supports volume, the volume fader on a MIDI or Instrument track can send a value of 0–127 to the MIDI volume controller.
Real-Time Properties
In the Edit window, Real-Time Properties view provides access to Real-Time Properties controls (such as Quantize or Transpose) on MIDI and Instrument tracks. For more information, see MIDI Real-Time Properties.
Track Color
In the Edit window, Track Color view displays the Track Color strip at the left-most side of the Track controls.