26
PROGRAM INPUT
A 1/4” / XLR combo jack input, the PROGRAM INPUT can accept signals from
microphones or line level audio. Spectravox’s microphone preamplifier will
work with un-powered microphones like dynamic or piezo microphones. It does
not supply phantom power and cannot power condenser microphones or other
microphones that require a bias voltage.
GAIN LEVEL
This sets the gain of the signal at PROGRAM INPUT (or the auxiliary PROGRAM
input in Spectravox’s patch bay on the right). Adjust GAIN LEVEL so the LED
shows a strong bright red light at the loudest parts of the PROGRAM signal and
shows a dim red light during quieter parts.
PROG TRIG -> EG
When ON, this triggers the envelope generator of Spectravox whenever the
PROGRAM signal exceeds a certain threshold.
NOTE: In addition to the 10 band-limited envelope followers of Spectravox’s analysis
filter bank, there is also a global PROG ENV F that tracks the amplitude of the entire
unfiltered PROGRAM signal (post GAIN LEVEL). The PROG ENV F is available at its
associated output on the patch bay and is used to generate the PROG TRIG.
HOLD
Every filter in the analysis filter bank has a sample and hold circuit that, when
HOLD is switched ON, will hold each envelope follower at its current voltage.
Switching HOLD to OFF will release each envelope follower to continue
tracking each band in the analysis filter bank.
TIP: Use the HOLD feature to capture certain vowel sounds! Say “aaaah” into a
microphone connected to the PROGRAM INPUT and flip HOLD to ON to hold all 10
filters in the “aaaah” shape.
PROGRAM (Continued)
To Next Page
Loading...
