MOTU Track16 - Desktop Studio FireWire/USB 2.0 Interface - Manual (Page 98)

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TUNER
The Tuner window is an accurate and easy to use
tuner.
Opening the Tuner
Each MOTU audio interface has its own Tuner
window. Choose the
Tuner item from the Devices
menu under the desired interface (Figure 9-26 on
page 82).
Choosing a channel to tune
The Tuner window follows the currently focused
audio input or output. If you focus a mono channel
(e.g. Analog 3), its corresponding stereo pair will
be displayed (Analog 3–4).
In the Tuner window, the displayed channel pair is
shown in the lower left corner. Each channel has a
checkbox to enable or disable its input to the tuner.
Tuner controls
Detected frequency: fundamental frequency of the
incoming signal, in Hertz (Hz).
Detected note: note name and octave that
correspond to the detected fundamental
frequency.
Meter: representation of the pitch difference
between the detected note and the detected
fundamental frequency. The horizontal position of
the illuminated segments indicates how far the
detected frequency is from the detected note. The
number of illuminated segments indicates
uncertainty or inharmonicity in the signal; a
greater number of illuminated segments represents
greater uncertainty. The color of the segments
changes gradually from green (in tune) to yellow,
orange, and red (progressively further out of tune).
Meter value: difference between the detected note
and the detected frequency, in cents.
Arrows: the direction in which the detected
frequency needs to move to match the frequency of
the detected note. The color of the arrows changes
progressively in the same manner as the meter
segments. When the detected fundamental
frequency matches the detected note within
three cents, both arrows will be illuminated.
Reference frequency: sets the frequency reference
for the pitch A4, between 400 and 480 Hz. The
default frequency is 440 Hz.The reference
frequency can be adjusted by dragging on the bar
below the number, or by clicking the number and
typing a value. To reset the tuner to the default
frequency, double-click the slider, or click the
number, press the Delete key, and press Enter.
Tuning stereo signals
When tuning a stereo signal, the tuner analyzes the
sum of the two channels. If the channels are not
phase coherent, the tuner may not be able to
measure the frequency of the signal. To tune only
one channel of the channel pair, disable one of the
channels as described in “Choosing a channel to
tune” on page 98.
Meter value Meter Detected frequency
Reference
frequency Arrow Detected
note