obviously have no equivalent in natural environments.
Control of the brightness of this program is achieved via the HI FILTER control.
If the stereo outputs of this program are summed to mono, an effect similar to
NONLIN will be obtained.
Program 18 NONLIN 1
This program is for special effects or loudness enhancement, in which the sound
does not decay for the first period of time set by the decay control, then very
rapidly dies away. The decay values are not calibrated in this mode, but values may
be used for reference.
A predelay before the reverberation begins is also selectable.
The program has two outputs - one having discrete reflections (2), the other having
a more diffused character (1). Either output may be used at short decay times for
multiplying percussive sounds like hand claps - the smoother program at short
decay times for a certain type of room simulation.
Appendix C
High and Low Frequency Decay Characteristics
High and low frequency profiles may, for many programs, be modified as specified
below. These figures apply to the final, reverberant phase of the decay or each
program, but early reflections are also affected in certain programs, so the figures
should be used as a guide only. The final setting should be selected by ear.
Nominal High Frequency Decay Control Characteristics
Setting Half decay time frequency
0 18 kHz (flat)
-1 15 kHz
-2 10 kHz
-3 8 kHz
-4 6.5 kHz
-5 5 kHz
-6 3.5 kHz
-7 2 kHz
-8 1.5 kHz
-9 1 kHz
Low Frequency Decay Control Characteristics
The low frequency filter control affects the decay time of the reverberant phase of
the programs at a frequency of 350Hz, varying nominally from a quarter of the
indicated time at a setting of -9, to four times at +9. Program material content
varies the subjective effect of this control considerably; again it is best set by ear.
RMX-16 Digital Reverberation System - 19 - Issue 1
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