Noise Tools 1U Manual
7.
SLEW TIME - Sets how quickly (or slowly) the output voltage responds to a change in
input voltage, thus converting any instantaneous voltage changes appearing at the
SLEW IN to a gradual “slewed” voltage change at the SLEW OUT.
Slew times range from nearly instantaneous at the knob’s minimum (counter-clockwise)
position to a maximum of about 1 second for a 5V change.
Inputs and Outputs
A.
PULSE - Outputs the Pulse signal (5 V gate) generated by Noise Tools’ internal pulse
circuit.
B.
PINK - Pink noise output.
Pink noise has less high frequency energy than white noise, and thus sounds “darker.”
Pink noise contains equal power per octave, which means the 55Hz wide range of
frequencies in the octave between A1 and A2 contains the same amount of energy as
the 880Hz range of frequencies in the octave between A5 and A6. This has the effect of
giving more sonic weight to lower frequencies, resulting in a deeper, thicker sounding
noise.
C.
WHITE - White noise output.
White noise contains equal power per frequency, which means every frequency,
whether it’s 70Hz or 7,000Hz is equally present in the noise signal, and the energy
curve is not skewed toward the lower frequencies favored by pink noise. This gives
white noise more brightness and sizzle than pink noise.
Page 9
