ABox Help
Basics
Objects
Signals
Tutorials
Knob
Value
dB Attenuation
Hertz
Seconds
Delay Time
Note Frequency
Note Ratio
Midi Note
The knob produces values between ±1.0.
The value may be displayed a number of ways.
Pins:
X
Output X = Displayed value
Controls:
One control wiper.
Keyboard and Context menu:
del
delete the object
l
linear taper (default)
a
audio (log) taper
v
display as value (default)
d
display as decibels attenuation
h
display as Hertz (cycles per second)
n
display as equally tempered note (frequency)
i
display as musical interval (ratio)
m
display as midi note
s
display as seconds (time)
b
display as Beats Per Minute (tempo)
e
display as delay time (for the delay object)
1-9
Set number of turns ( 1-65536 in 4x jumps )
num 1
set value to +1.0
num 0
set value to 0.0
num +
make value positive
num -
make value negative
Default State:
display as value
1 turn
linear taper
value = 0.0
Display Formats:
Note Frequency:
name
octave
±cents
.
Example above reads "A flat, 9th octave, detuned -19 cents". Applicable for frequency inputs.
Note Ratio:
interval
±cents
octave
.
Example above reads "minor third plus 4 cents, two octaves down". Applicable when two frequencies are multiplied together.
Midi Note:
note number
fraction of note
The number is
not
rounded to the closest note.
In the example above, the Midi note is 35 + 76 cents, which would be heard as midi note 36 - 24 cents.
Notes:
To control the knob, left click and drag while the control circle is highlighted.
The control wiper always points at the mouse. Move the mouse around the center of the knob to use multi turn.
Knobs turn backwards compared to those found on other electronic equiptment.
When the maximum value is reached, the knob will slip back one turn.
Settings on the knob may be adjusted with the keyboard while the knob is being controlled with the mouse.
Changing the display setting does
not
change the output value.
When the circuit is playing, changes to a knob are intepolated across the sample frame (23ms).