Drawmer M500 Dynamics Processor - Manual (Page 37)

M500 OPERATORS MANUAL Ch 5 - 10
The range parameter can be set so that the EXPAND effect is operational
RANGE
but not too severe. The maximum range of 40dB 40dB is only available with
higher RATIO and THRESHOLD settings.
EXPAND PATCHES Patches numbered 66 to 71. Combinations with other Effect modules
patches can be found at patch 101 and patch 103
ADVANCED COMPRESS
The Compressor is relatively simple to set up and uses only one parameter screen in addition to
the View screen. The variable parameters are; Threshold, Ratio, Attack, Hold and Release and
there is also the option to switch the Compressor type from Normal (linear) to Soft Knee.
AUTO COMPRESSOR
Auto Auto THRESHOLD is available on the Compressor by turning the threshold
fully anti-clockwise. For this, it relies on the threshold of the LIMITer,
whether or not the Limiter is assigned. It functions by automatically
adjusting the Compressor threshold so that peaks are 6dB below the
Limiter threshold. The update of this floating threshold follows time
constants loaded with patch numbers 73 to 80.
Each patch having separate:
Attack - time to wait before re-adjustment.
Hold - time to remain at this level
Decay - how quickly to change to another level.
The 'amount' of auto threshold adjustment ranges between 0dB and the
Expander threshold, even if the Expander is not assigned. Any signal level
below the Expander threshold will cause the auto gain make up to 'freeze'
at its current level. This is done to prevent massive re-adjustment of gain
make-up and auto parameters when more than one track is processed and
the gap of silence between tracks would be classed as very low level
program.
The default is for the Compressor auto threshold to force the Expander
threshold down to the maximum range of -31dB. In most cases the
Expander threshold will not need further adjustment.
AUTO GAIN MAKE-UP
Gain make-up is also automatic in this mode, and is calculated to put back
any level drop caused by the compression, making the overall output level
remain more constant. This amount can be seen by observing the OUTPUT
page. (The display is not updated in real time and so may be changing far
more often than appears). Manual override of automatic gain make-up is
always possible, but not recommended.
AUTO ATTACK / RELEASE
The Attack and Release times also have Auto settings which vary the
attack and release times automatically depending on the nature of the
program material being processed. This is a useful option for signals that
vary dramatically in attack and release times, alternately slapped and
plucked bass guitar being one example.
HIDDEN PARAMETERS
The AUTO time constants are not offered for user editing. Different
response and time characteristics can be produced simply by using a
different preset factory patch as a starting point. See the Factory Patches
section, patches numbered 73 to 80, for more details.