5 � The US-122 Control Panel
Optimizing the USB
There is another option available which allows you to disable the audio, and only use the MIDI facilities of the US-122. This is useful if you have a high volume of MIDI data to be transmitted through the interface and the timing is critical.
The Chromatic Tuner
Open the US-122�s control panel and select the Tuner tab. 440 Hz for a middle �A� note, but you can use the up/down arrows to change it to a number between 430 and 450 Hz. As you play, the detected note will be displayed below the Tuning lights (A# or E, for example). If the note is sharp, the Sharp arrow and a Tuning light to the right of 0 are bright red; if the note is flat, the Flat arrow and a Tuning light to the left of 0 are bright red. In the Input section, select the US-122 input channel that you want to tune (L or R). Play a note and adjust the level for that input until the signal is strong, but not clipping. The Level meter on the screen should display bright green segments without lighting the top red segment. If desired, you can change the Tuning Standard in the Reference section. Normally, the Tuning Standard is set to The numbers below the tuning lights indicate how far out of tune the note is, in cents (100 cents is one semitone). When the note is in tune, the center �0� light and both the Flat and Sharp arrows are bright green.
NOTE
The chromatic tuner consumes some CPU bandwidth in your system. Therefore, when you finish using the tuner, we recommend that you either select another control panel tab or close the control panel.
