Yamaha DME32 DME32 Owners Manual - Page 135

Dynamics 129 to the input signal level. A 45-degree line means that the input signal level equals the output signal level, in other words, the Compressor is having no effect. The output meter displays the level of the output signal. Parameter Range Description MUTE ON/OFF SIDECHAIN THRESHOLD RATIO KNEE ATTACK RELEASE ON/OFF 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 Selects the sidechain input as the trigger source Adjusts the threshold level Adjusts the compression ratio Adjusts the Compressor's "hardness" Adjusts the attack time Adjusts the release time GAIN 0.0 dB to +18.0 dB Adjusts the output gain 1. 5 ms-42.3 sec (fs = 48 kHz), 6 ms-46.0 sec (fs = 44.1 kHz) SIDECHAIN-When SIDECHAIN is off, the Compressor is triggered by the input signal. On the Stereo Compressor, the trigger signal is derived by mixing the signals from both inputs, so the higher of the two input signals will activate the Compressor. When SIDECHAIN is on, the Compressor is triggered by the signal connected to the sidechain input. THRESHOLD-This determines the level of trigger signal required to activate the Compressor. Trigger signals at a level below the threshold cause the Compressor to pass the input signal through unaffected. Trigger signals above the threshold level cause the Compressor to compress the input signal 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 trigger signal level. For a 2:1 ratio, for example, a 10 dB change in trigger level (above the threshold) results in a 5 dB change in output level. For a 5:1 ratio, a 10 dB change in trigger level (above the threshold) results in a 2 dB change in output level. Compression ratios above 10:1 limit signals rather than compress them. Output Level (dB) Output Level (dB) +20 +10 Compression ratio = 2:1 0 -10 Threshold = -20dB -20 -30 Knee = hard -40 -50 -60 -70 -70 -60 -50 -40 -30 -20 -10 0 +10 +20 Input Level (dB) +20 +10 Compression ratio = 20:1 0 -10 Threshold = -20dB -20 -30 Knee = hard -40 -50 -60 -70 -70 -60 -50 -40 -30 -20 -10 0 +10 +20 Input Level (dB) KNEE-This determines how compression is applied at the threshold point. When set to hard, compression at the specified ratio is applied as soon as the trigger signal level exceeds the specified threshold. For knee settings from 1 to 5 (5 being the softest), how- DME32-Owner's Manual