Руководство по эксплуатации Rane G4

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OPERATORS MANUAL G4
QUAD GATE / DUCKER / EXPANDER
SIDE-CHAIN dBr LINK SIDE-CHAIN dBr SIDE-CHAIN dBr LINK SIDE-CHAIN dBr
12 34
MASTER SLAVE MASTER SLAVE
-24 -12 -6 -3 -1 TH 1 3 612 OL -24 -12 -6 -3 -1 TH 1 3 612 OL -24 -12 -6 -3 -1 TH 1 3 612 OL -24 -12 -6 -3 -1 TH 1 3 612 OL
CLOSED OPEN CLOSED OPEN CLOSED OPEN CLOSED OPEN
-20 -20 -20 -20
-30 -10 50 250 .5 -30 -10 50 250 .5 -30 -10 50 250 .5 -30 -10 50 250 .5
G4
-40 0 -40 0 -40 0 -40 0
25 100 125 500 .25 2 25 100 125 500 .25 2 25 100 125 500 .25

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Front Panel Controls Meters Active / Bypass switch SIDE-CHAIN dBr ACTIVE BYPASS -24 -12-6-3-13 TH 1 612 OL CLOSED OPEN The Active / Bypass switch bypasses or activates dynamics The eleven-segment SIDE-CHAIN signal meter indicates processing for each channel. Side-chain metering and Listen level relative to the Threshold (dBr), allowing easy and intuitive continue to operate in Bypass. Bypass switches remain indepen- adjustment of the Gate threshold. The Threshold indicator TH dent in Link mod

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Release Side-Chain Key Sources: Internal / External 250 125 500 INTL EXT NORMAL ISTEN 25 2 Sec ms SIDE-CHAIN RELEASE In Gate mode, the RELEASE setting determines how quickly The INTernal / EXTernal switch determines the source of the the Gate closes (gain decrease) as the key signal drops below side-chain key signal. threshold. When set to INT, the channel input is the source. When In Expand mode, the RELEASE setting determines how set to EXT, the side-chain input jack is the source. Side-chai

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Operation Figure 1 shows the waveform and envelope of a gated signal. The G4 has 3 modes: Gate, Ducker or downward Expander. The leading edge of the envelope is the attack time (0 to 250 ms). The hold time (0 to 3 seconds) determines how long the Side-chain Detector gate remains open after the signal goes below the set threshold. The side-chain detector compares a reference signal, commonly The release rate (25 ms to 2 seconds) determines how rapidly referred to as the key signal, to the

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Expand Mode The basic objective of expansion is the same as gating: expand the dynamic range of a signal by reducing the noise floor. However, an expander provides a more subtle response than a gate in applications requiring smooth, natural decay. It works by controlling the ratio of output change to input change, in effect dynamically modifying gain below a set threshold. For example, if the ratio is set to 4:1 then the output decreases 4 dB for every 1 dB of decrease in input level (S

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Duck Mode Kick Drum Attack Example Ducking reduces the level of a signal by a certain amount (the The pictures below show the affect of attack time on the leading depth) when the side-chain key signal exceeds a set threshold. edge of a kick drum. The blue trace shows the Gate input signal. Ducking is useful for voiceover and instrument solo applications. The yellow trace shows the Gate output signal. The time differ - Example uses ence between the two signals represents the total propagat