User manual RANE C4

[. . . ] OPERATORS MANUAL C4 QUAD COMPRESSOR / LIMITER -12 -6 -10 dBr 0 +10 +20 dBu -3 -1 TH 18 12 8 4 2 1 1 MASTER LINK 2 SLAVE -20 -10 -12 -6 dBr 0 +10 +20 dBu -3 -1 TH 18 12 8 4 2 1 -10 -12 -6 dBr 0 +10 +20 dBu -3 -1 TH 18 12 8 4 2 1 3 MASTER LINK 4 SLAVE -20 -10 -12 -6 dBr 0 +10 +20 dBu -3 -1 TH 18 12 8 4 2 1 -20 -30 -40 2 1. 5 1 5 10 -6 -12 Reduction dB 0 +6 +12 ACTIVE BYPASS LIMIT 3 -20 -30 Hard Soft -40 dBu -10 0 +10 +22 dB 6 12 24 2 1. 5 1 5 10 -6 -12 Reduction dB 0 +6 +12 ACTIVE BYPASS LIMIT 3 -20 -30 Hard Soft -40 dBu -10 0 +10 +22 dB 6 12 24 -20 -30 -40 2 1. 5 1 5 10 -6 -12 Reduction dB 0 +6 +12 ACTIVE BYPASS LIMIT 3 -20 -30 Hard Soft -40 dBu -10 0 +10 +22 dB 6 12 24 2 1. 5 1 5 10 -6 -12 Reduction dB 0 +6 +12 ACTIVE BYPASS LIMIT 3 -20 -30 Hard Soft -40 dBu -10 0 +10 +22 dB 6 12 24 -30 -40 -30 -40 COMP THRESHOLD 100 50 25 250 500 Auto 2 1 0. 5 5 10 125 20 125 50 25 RATIO 500 1s 2s ms Auto n:1 GAIN dB COMP THRESHOLD 100 50 25 250 500 Auto 2 1 5 10 125 20 125 50 25 RATIO 500 1s 2s ms Auto n:1 GAIN dB COMP THRESHOLD 100 50 25 250 500 Auto 2 1 5 10 125 20 125 50 25 RATIO 500 1s 2s ms Auto n:1 GAIN dB COMP THRESHOLD 100 50 25 250 500 Auto 2 1 5 10 125 20 125 50 25 RATIO 500 1s 2s ms Auto n:1 GAIN dB ATTACK ms RELEASE 640 3. 15k KNEE 0 LIMIT THRESHOLD Headroom ATTACK ms RELEASE 640 3. 15k 20k KNEE 0 LIMIT THRESHOLD Headroom ATTACK ms RELEASE 640 3. 15k 20k KNEE 0 LIMIT THRESHOLD Headroom ATTACK ms RELEASE 640 3. 15k 20k KNEE 0 LIMIT THRESHOLD Headroom QUAD COMPRESSOR POWER C4 Comp Listen BANDWIDTH oct FREQUENCY PEQ Hz 20k -12 GAIN dB +12 0. 5 SIDE-CHAIN BANDWIDTH oct FREQUENCY PEQ Hz -12 GAIN dB +12 Comp Listen Dynamic EQ 0. 5 SIDE-CHAIN BANDWIDTH oct FREQUENCY PEQ Hz -12 GAIN dB +12 Comp Listen Dynamic EQ 0. 5 SIDE-CHAIN BANDWIDTH oct FREQUENCY PEQ Hz -12 GAIN dB +12 Comp Listen Dynamic EQ SIDE-CHAIN Quick Start Rejected Rane advertising slogan #1743: "C4. It'll blow your mind!" We're not entirely sure why the marketing department didn't like the idea, but be assured: unlike its explosive material namesake, the C4 Quad Compressor will not blow up. The only thing smokin' will be your mix, thanks to the C4's smooth compression, precise dynamic EQ and ultra-fast limiting. Each of the C4's four channels offers a full-featured compressor with selectable Compressor and Dynamic EQ modes. [. . . ] Example: With THRESHOLD set to -15 dB, the TH indicator lights when the sibilant portion of the program material is 15 dB below the broadband program material. If the sibilants are 18 dB below the broadband material, then the ­3 dBr indicator is lit. Gain Reduction Display The Gain Reduction meter displays the amount of gain correction presently applied to the signal, lighting from right to left as the amount of gain reduction increases. In Compressor mode, this meter display the amount of gain correction being applied to the broadband program material. this meter shows the amount of gain correction being applied to the dynamic EQ (DEQ) in the main signal chain. This meter does not reflect any gain reduction occurring due to limiting. Gain Reduction meter ballistics follow the actual gain correction value as determined by the THRESHOLD, RATIO, ATTACK, RELEASE and KNEE controls. Gain reduction may be indicated when the Threshold indicator is off, as attack and decay rates may dictate continued gain reduction even when the rms level is below threshold. MIXER C4 Figure . Connection to a mixing console. MIC INPUT INSERT SEND INSERT RETURN GRAPHIC EQ MASTER CONTROL 4 2 0 OL 10 BYPASS 6 8 ±12 ±6 RANGE LEVEL + 6 4 2 1 0 1 2 4 6 ­ 25 31. 5 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1k 1. 25k 1. 6k 2k 2. 5k 3. 15k 4k 5k 6. 3k 8k 10k 12. 5k 16k 20k + 12 8 5 2 0 2 5 8 12 ­ ME 30B MICROGRAPHIC EQUALIZER POWER CH 1 SIDE-CHAIN CH 1 INPUT CH 1 OUTPUT MIXER C4 Figure . Using an external equalizer in the side-chain. Manual-6 MASTER / SLAVE Stereo Link 1 MASTER LINK 2 SLAVE 3 MASTER LINK 4 SLAVE When channels are Linked · Bypassing the Master channel does not automatically bypass the Slave channel. Channel ACTIVE / BYPASS switches are the only controls which do not follow the Master channel, making it possible to bypass each channel individually. · Selecting Listen on the Master channel automatically puts both channels into Listen mode. Side-chain function switch indicators are turned off on the Slave channel. · Meters for Master and Slave channels remain active, indicating both channels are being processed. ACTIVE / BYPASS The MASTER / SLAVE switches link channels 1 & 2, or channels 3 & 4 for stereo operation. When linked, the associated LINK indicator lights and only the controls of the Master channel (channel 1 or channel 3) are active, with the exception of channel ACTIVE / BYPASS switches. This feature helps preserves a stable left/right image when compressing a stereo source, such as a vocal or horn submix. -12 -6 -10 dBr 0 +10 +20 dBu 2 1. 5 1 5 10 -6 -12 -3 -1 TH 18 12 8 4 2 1 1 MASTER LINK 2 SLAVE -20 -10 -12 -6 dBr 0 +10 +20 dBu -3 -1 TH 18 12 8 4 2 1 -20 -30 -40 Reduction dB 0 +6 +12 ACTIVE BYPASS LIMIT 3 -20 -30 Hard Soft -40 dBu -10 0 +10 +22 dB 6 12 24 2 1. 5 1 5 10 -6 -12 Reduction dB 0 +6 +12 ACTIVE BYPASS LIMIT 3 -20 -30 Hard Soft -40 dBu -10 0 +10 +22 dB 6 12 24 -30 -40 ACTIVE BYPASS COMP THRESHOLD 100 50 25 250 500 Auto 2 1 0. 5 5 10 125 20 125 50 25 RATIO 500 1s 2s ms Auto n:1 GAIN dB COMP THRESHOLD 100 50 25 250 500 Auto 2 1 5 10 125 20 125 50 25 RATIO 500 1s 2s ms Auto n:1 GAIN dB ATTACK ms RELEASE 640 3. 15k 20k KNEE 0 LIMIT THRESHOLD Headroom ATTACK ms RELEASE 640 3. 15k 20k KNEE 0 LIMIT THRESHOLD Headroom BANDWIDTH oct FREQUENCY PEQ Hz -12 GAIN dB +12 Comp Listen Dynamic EQ 0. 5 SIDE-CHAIN BANDWIDTH oct FREQUENCY PEQ Hz -12 GAIN dB +12 Comp Listen Dynamic EQ SIDE-CHAIN Figure . Active controls in Linked Mode Stereo Linking in Compressor Mode Linked Compressors use the rms sum of the two channels' sidechains, and display this summed result on the side-chain dBr meters of both channels. The Master channel settings determine the actual gain reduction characteristics. Linked Controls in Dynamic EQ Mode When channels are linked in Dynamic EQ mode, both channels use the Master channels' control settings, but the dynamic EQ essentially functions independently for each channel. Combining the rms values of broadband and bandpass signals, as is done in Compressor mode, is of no advantage in Dynamic EQ mode. Stereo-Linked Limiters When channels are linked, the Master channel Limit Threshold setting determines the maximum output level for both channels. [. . . ] Good settings for natural sounding, yet compressed vocals, are a medium fast (25 ­ 50 ms) attack and a medium-slow (100 ms ­ 1 sec) release. Releasing too quickly sounds unnatural, while attacking too slowly misses the problem surges. Adjust the ratio to match the dynamics of the singer, with 2:1 being a good starting point. Manual-0 ATTACK Vocals Clicky Bass Mushy Bass Medium to Fast Fast Medium to Slow RELEASE Medium to Slow Fast Medium to Slow Slow Medium to Slow Fast Fast Slow RATIO 2:1 to 4:1 4:1 or higher 4:1 4:1 or higher (more sustain) 4:1 5:1 or higher 4:1 2:1 to 10:1 KNEE Soft Hard Hard Hard Medium Hard Hard Hard Raging Electric Guitar Fast Acoustic Guitar Brassy Horns Drums (kick, snare) Drums (cymbals) Medium to Slow Fast Fast Fast Table . Suggested Compressor Settings Bass It is common for the sound mixer to reduce the bass signal because it overwhelms the total system. [. . . ]