Chapter 4 - Pitch, Autolocation And Punching Controls; Pitch Controls - Alesis BRC Reference Manual

CHAPTER 4: PITCH, AUTO-LOCATION
AND PUNCHING CONTROLS

4.0 PITCH CONTROLS

The BRC provides controls over pitch by adjusting the speed the tape
is traveling. The Pitch controls include: PITCH MODE, PITCH UP,
and PITCH DOWN buttons; the PITCH LED display; and the
VARIABLE and FIXED LEDs. Pitch changes affect all slave machines.
The PITCH display shows the current pitch variance in cents. The
pitch range is -300 through +100 cents.
The PITCH MODE button toggles between the VARIABLE and FIXED
LEDs. When the FIXED LED is lit (VARIABLE LED will be off), the
pitch is set to the standard pitch (000).
• If either PITCH UP or PITCH DOWN buttons are pressed when
the FIXED LED is lit, the FIXED LED will turn off and the
VARIABLE LED will turn on. This way you have direct control
over the pitch by simply adjusting the Pitch value.
Press the PITCH UP to gradually move the pitch higher (+100 cents
maximum), and PITCH DOWN to gradually move the pitch lower (-
300 cents maximum). After a brief delay during which the display
shows the current pitch, the pitch changes and the display shows the
amount of pitch change in cents. Keep in mind that the counter will
not elapse in real time when the pitch is set to a value other than
zero.
When the VARIABLE LED is lit (FIXED LED off), the pitch is set to
the pitch value you selected. When you press PITCH MODE and go
back to FIXED, the last selected pitch value is remembered and
recalled when you switch back to VARIABLE. This allows you to
switch between the standard pitch and the last varied pitch, by
moving between the two pitch modes.
Note: When switching from Fixed to Variable mode, the pitch will
not change instantaneously, but will change at the same rate as if
changed manually.
Note: Should you need to set the sample clock rate to 44.1 KHz, adjust
the Pitch value to -147. When the Pitch value is set to -147, the
Pitch display will read "44.1" to indicate that this setting represents
a sample rate of 44.1 KHz.
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