gml gml2020 Manual De Usuario
V. Dynamics
Note: A basic understanding of the fundamental terms and concepts regarding dynamic range devices in general is
paramount to the following discussion and is presumed to exist for the user.
paramount to the following discussion and is presumed to exist for the user.
In contrast to most conventional dynamic range devices, the Dynamics section of the
Model 2020 is a complex dynamic range controller that incorporates several powerful
features to provide unparalleled flexibility and musicality. Indeed, this section may be
thought of as two completely different dynamic range controllers in one package: the
simple (physically) change of the Ratio setting from Soft Knee to Hard Knee style
compression affects this complete change in the section. This difference will be further
delineated as it becomes necessary and/or appropriate throughout the following
discussion.
Model 2020 is a complex dynamic range controller that incorporates several powerful
features to provide unparalleled flexibility and musicality. Indeed, this section may be
thought of as two completely different dynamic range controllers in one package: the
simple (physically) change of the Ratio setting from Soft Knee to Hard Knee style
compression affects this complete change in the section. This difference will be further
delineated as it becomes necessary and/or appropriate throughout the following
discussion.
All input signals, whether in Soft Knee or Hard Knee operation, must first undergo
conversion to a logarithmic control signal. Logarithmic control, whether peak or RMS,
results in the same audible effect--in terms of sonic coloration--over the entire range of
compression, in contrast to many contemporary dynamic range devices, which produce
different audible artifacts varying with the amount of compression employed due to a
linear control path signal. In the case of sidechain operation (as determined by the
Routing control), this logarithmic control signal is derived from the sidechain signal
instead of the audio input signal itself, as in normal operation.
conversion to a logarithmic control signal. Logarithmic control, whether peak or RMS,
results in the same audible effect--in terms of sonic coloration--over the entire range of
compression, in contrast to many contemporary dynamic range devices, which produce
different audible artifacts varying with the amount of compression employed due to a
linear control path signal. In the case of sidechain operation (as determined by the
Routing control), this logarithmic control signal is derived from the sidechain signal
instead of the audio input signal itself, as in normal operation.
The logarithmic control signal generated by the log converter passes next to three
detectors. These independent detection circuits are optimized to affect different
transient aspects of any possible audio signal: the Slow RMS Detector acts on the least
transient (program level) signals, the Fast RMS Detector responds to more highly
transient signals, and the Peak Detector deals with the steepest transients. This control
architecture allows for individual circuit optimization in each style of detector. The
nature of utilizing RMS-style control signals more closely follows the natural response of
the human ear-brain complex, thus resulting in greater musicality and audible integrity,
even in cases of drastic compression.
detectors. These independent detection circuits are optimized to affect different
transient aspects of any possible audio signal: the Slow RMS Detector acts on the least
transient (program level) signals, the Fast RMS Detector responds to more highly
transient signals, and the Peak Detector deals with the steepest transients. This control
architecture allows for individual circuit optimization in each style of detector. The
nature of utilizing RMS-style control signals more closely follows the natural response of
the human ear-brain complex, thus resulting in greater musicality and audible integrity,
even in cases of drastic compression.
The Timing control affects the actions of the detection circuits in an intuitive manner,
wherein interrelated attack and release time constants are varied simultaneously for the
Slow and Fast RMS Detectors, while timing release values are determined for the Peak
Detector. Interestingly, the release of the Fast RMS Detector corresponds to the attack
of the Slow RMS Detector, while the Slow RMS Detector's release time may be varied
independently of its associated attack time constant by engaging the Release
Hysteresis control.
wherein interrelated attack and release time constants are varied simultaneously for the
Slow and Fast RMS Detectors, while timing release values are determined for the Peak
Detector. Interestingly, the release of the Fast RMS Detector corresponds to the attack
of the Slow RMS Detector, while the Slow RMS Detector's release time may be varied
independently of its associated attack time constant by engaging the Release
Hysteresis control.