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7 SYSTEM Button Press this button to set various parameters that affect
the ATR-1’s overall functionality (MIDI response, LCD contrast, etc.) The
accompanying LED lights to remind you that you are in System Edit
Mode. When the LED is lit, press the SYSTEM buttom again to exit the
System Edit Mode.
8 BYPASS Button Press the Bypass button to pass audio through the
ATR-1 without any pitch correction or other processing. Switching the
Bypass state will not cause any audio artifacts, so it can be used in
performance or in the middle of a recorded track. The ATR-1 can also
be placed into Bypass Mode via a footswitch (see below) or by MIDI.
The accompanying LED lights to remind you that you are in Bypass
Mode, whether the mode was initiated by the Bypass button, the foot
switch, a Song Step Item or MIDI.
9 SIGNAL LEVEL Meter These six LEDs light to indicate the input signal
level in dBs. Ideally, you should adjust the input to the highest level that
does not consistently cause the top red LED to light. (The red LED lights
at a level of -3dB. Digital clipping, which introduces a particularly nasty-
sounding distortion, will occur if the input exceeds 0dB.)
10 PITCH CHANGE Meter These LEDs indicate, in real time, the amount of
pitch correction being applied to change the input pitch to the target
pitch. The green LEDs indicate that the input is flat and that positive
correction is being applied. Conversely, the yellow LEDs indicate that the
input is sharp and that negative correction is required. They are labeled
in cents (i.e., 100ths of a semitone).
ATR-1 front panel
