Sound Sculpture Volcan, Руководство пользователя

Страница: 2 / 16

1
Thank you
for purchasing the Volcano remotely controlled volume control. Take a look at some of the reasons this is
the best volume effect you will ever use.
The
Volcano
is an all analog effect containing an ultra high quality audio channel allowing gain changes in an audio
path under MIDI Control Change or Program Change messages or directly from an expression pedal connected to the
pedal input. Because of the unique approach to the design of the Volcano, the audio quality is superior to its typical
counterparts especially with regard to noise, transparency, accuracy, flexibility and size.
The
Volcano
can be used as a remote volume pedal without the need for MIDI simply by connecting an expression
pedal. The range of the pedal can be set to commonly used ranges using a selector switch inside the unit. Multiple units
can be connected via MIDI cables and these units will track the expression pedal connected to the first unit
automatically.
The
Volcano
can be controlled by MIDI messages from your favorite foot controller or computer. Using MIDI the gain
can be set to a vast range of fixed gains, or a range of gains that can be controlled by a MIDI continuous control pedal or
from the expression pedal input. Advanced commands such as Softchange will quickly and quietly switch gains on the
Volcano
even while playing without the spikes heard in other systems.
Audio Quality:
Unlike all other effects of this type, the Volcano does not use any voltage controlled amplifiers (VCAs).
VCA systems tend to be noisy and have excessive distortion and can block the natural tone of your instrument. The
Volcano takes an entirely new and different approach to signal level control that depends strictly on rapidly selecting
various resistances to control gain. Using resistors to change gain is simply the cleanest, purest method of controlling
signal levels and results in a crisp, transparent tone from your guitar, keyboard, vocals or other instruments. In addition,
a high quality low distortion/high transparency input and output buffer are included in the Volcano to keep your
instrument signal as clean as possible. In a nutshell, your signal goes through nothing more than an input buffer, a
resistor selector circuit, and an output buffer for absolutely the cleanest possible signal available. For an added measure
of quality and to insure the lowest possible noise levels a balanced (differential) internal signal path is used.
No Lag
: The response to gain changes from movement of the expression pedal or from a CC or Program message is
virtually instant with no lag in response time.
Accuracy
: Since the volcano uses precision resistors to select gains, the selected gains are repeatable and accurate.
When you select a 12dB boost on the Volcano, you get just that, exactly 12dB of boost regardless of temperature,
humidity, or age. This results in a repeatable performance time after time. For added convenience a yellow/red
indication is also offered for check for potential overload conditions.
Precision Zero Cross Detect
: For the lowest possible distortion and to eliminate zippering noise the gain of an audio
signal should be changed only during the point at which audio passes through zero. The Volcano incorporates a
hardware based ultra precision zero crossing detection scheme which is used during all volume changes which results in
very natural sounding volume changes and lowest distortion during sweeping.
The Volume Effect
: The Volcano can vary the level of a signal in real time from -72dB to +18dB (when set to
instrument level) or from -84dB to +6dB (when set to line level) including mute in approximate 1/3 dB increments. Since
the level is controlled exclusively by MIDI messages or by an expression pedal connected directly to the unit, the
Volcano can be used as a remotely controlled volume pedal where the Volcano can be placed near the signal path while
being controlled remotely by a pedal that is not part of the audio signal. This has the great advantage of achieving the
lowest noise, highest purity, and highest reliability. Instant changes to the signal level can also be achieved by sending a
Program message or on/off type Control Change messages to the Volcano.