Yamaha DME32 DME32 Owners Manual - Page 138

132 Chapter 8-Component Guide Part I signal level, in other words, the De-Esser is having no effect. The output meter displays the level of the output signal. Parameter Range Description MUTE ON/OFF THRESHOLD RATIO KNEE ATTACK RELEASE ON/OFF ON/OFF -54 dB to 0 dB 1:1 to Infinity:1 HARD, 1, 2, 3, 4, 5 0 ms-120 ms 1 Mutes the output Turns the component on and off Adjusts the threshold level Adjusts the de-esser ratio Adjusts the De-esser's "hardness" Adjusts the attack time Adjusts the release time GAIN FREQ 0.0 dB to +18.0 dB 80.0 Hz to 10.0 kHz Adjusts the output gain Adjusts the frequency above which signals are compressed 1. 5 ms-42.3 sec (fs = 48 kHz), 6 ms-46.0 sec (fs = 44.1 kHz) THRESHOLD-This determines the level of input signal required to activate the De-Esser. On the Stereo De-Esser, the trigger signal is derived by mixing the signals from both inputs, so the higher of the two input signals will activate the De-Esser. Signals below the threshold level pass through the De-Esser unaffected. Signals above the threshold level that are above the specified frequency are compressed by the amount specified using the Ratio parameter. RATIO-This determines the amount of compression, that is, the change in output signal level relative to the change in input signal level for signals above the specified frequency. For a 2:1 ratio, for example, a 10 dB change in input level (above the threshold) results in a 5 dB change in output level. For a 5:1 ratio, a 10 dB change in input level (above the threshold) results in a 2 dB change in output level. Compression ratios above 10:1 limit signals rather than compress them. KNEE-This determines how compression is applied at the threshold point. When set to hard, compression at the specified ratio is applied to signals above the specified frequency as soon as the input signal level exceeds the specified threshold. For knee settings from 1 to 5 (5 = softest), however, compression is applied gradually as the signal exceeds the specified threshold, creating a more natural effect. ATTACK-This determines how soon the signal is compressed once the De-Esser has been activated. With a fast attack time, the signal is compressed almost immediately. With a slow attack time, however, the initial transient of a sound passes through unaffected. RELEASE-This determines how soon the De-Esser returns to its normal gain once the trigger signal level drops below the threshold. If the release time is too short, the gain will recover too quickly causing level pumping (i.e., noticeable gain fluctuations). If it is set too long, the compressor may not have time to recover before the next high level signal at the specified frequency appears and it will be compressed incorrectly. GAIN-This sets the De-Esser's output signal level, and can be used to compensate for the level change in signals above the specified frequency caused by the compression process. FREQ-This sets the frequency above which signals are compressed when the De-Esser is activated. DME32-Owner's Manual