Yamaha DME32 DME32 Owners Manual - Page 142

136 Chapter 8-Component Guide Part I input signal level. A 45-degree line means that the input signal level equals the output signal level, in other words, the Expander 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 expander ratio Adjusts the Expander'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 Expander is triggered by the input signal. On the Stereo Expander, the trigger signal is derived by mixing the signals from both inputs, so the higher of the two input signals will activate the Expander. When SIDECHAIN is on, the Expander is triggered by the signal connected to the sidechain input. THRESHOLD-This determines the level of the trigger signal required to activate the Expander. Trigger signals above the threshold cause the Expander to pass the input signal through unaffected. Trigger signals below the threshold level cause the Expander to expand the input signal by the amount specified using the Ratio parameter. RATIO-This determines the amount of expansion. That is, the change in output signal level relative to the change in trigger signal level. For a 2:1 ratio, for example, a 5 dB change in trigger level (below the threshold) results in a 10 dB change in output level. For a 5:1 ratio, a 2 dB change in trigger level (below the threshold) results in a 10 dB change in output level. With a Ratio setting of Infinity:1, the Expander functions just like a gate. KNEE-This determines how expansion is applied at the threshold point. When set to hard, expansion at the specified ratio is applied as soon as the trigger signal level falls below the specified threshold. For knee settings from 1 to 5 (5 being the softest), however, expansion is applied gradually before the trigger falls below the specified threshold, creating a more natural sound. Output Level (dB) Output Level (dB) +20 +10 Expansion ratio = 2:1 0 Knee = hard -10 -20 Threshold = -10dB -30 -40 -50 -60 -70 -70 -60 -50 -40 -30 -20 -10 0 +10 +20 Input Level (dB) +20 +10 Expansion ratio = 2:1 0 Knee = 5 -10 Threshold = -20dB -20 -30 -40 -50 -60 -70 -70 -60 -50 -40 -30 -20 -10 0 +10 +20 Input Level (dB) DME32-Owner's Manual