Errorbox
Digital Bit-Mangling Effect
ADM03
Errorbox employs three different digital distortion techniques
to mangle your signals: sample-rate reduction, bit-depth
reduction, and Audio Damage’s proprietary ERR function.
Sample-rate reduction causes frequency-dependent distortion
by measuring and reproducing the level of signals at a lower-
Control voltages present at the
jacks are added to the values set
with the knobs.
Positive voltages at the SRR jack
lower the sampling rate; negative
voltages raise it.
Positive voltages at the BRR jack
reduce the number of bits used to
represent the signal; negative
voltages increase the bit
resolution.
Positive voltages at the ERR jack
increase damage caused by the
ERR function; negative voltages
decrease it.
The useful range of voltage for the
CV jacks is ±5V.
than-normal rate. Bit-depth reduction removes information
about the amplitude of signal, creating noisy approximations of
the original. ERR introduces errors into the signal, damaging it
in unpredictable ways. Errorbox’s effects range from a subtle
vintage digital vibe to complete sonic obliteration.
KnobsControl-Voltage Jacks
SRR controls the sample-rate reduction.
Turning this knob up lowers the sampling
rate (which increases the amount of
distortion). The sampling rate ranges from
48kHz to 48Hz. You’ll find that sample-rate
reduction affects higher frequencies first.
BRR controls the bit-resolution reduction.
Turning this knob up reduces the number of
bits used to reproduce the signal, making it
noisier and sometimes louder. The number
of bits ranges from 16 to 1. The effect varies
with the amplitude of the input signal.
We’re not going to tell you exactly what ERR
does, but turning the knob up wreaks an
increasing amount of havoc with the signal.
The BRR and ERR knobs are somewhat
complementary in that the effect of the ERR
function is less noticeable at high settings of
the BRR knob.
Audio Input Jack Audio Output Jack
The audio input signal goes in
here. The hardware will be
happiest if the signal level is
within ±7V.
• Obviously the main intent of this module is to induce a
serious amount of digital-sounding distortion. This, in the
words of a famous convicted felon, is a good thing.
However, subtle amounts of sample-rate- or bit-resolution
reduction can add a subtle sheen or fuzziness, adding
character to the sound without destroying it.
The processed signal comes out here. It may
or may not bear much resemblance to the
input signal.
•
Following this module with a low-pass filter can roll off
the harsh high frequencies inherent in digital distortion,
preserving the interesting textures present in lower
frequencies.
• Errorbox is a quick and effective tool for turning a ho-hum
analog VCO into something with old-school digital charm.
Assembled in USA from US and foreign components.
Revision 1.0
©2013 Audio Damage, Inc.
www.audiodamage.com
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