Master / Slave Stereo Link; Active / Bypass - Rane C4 Operator's Manual

Quad compressor / limiter

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Operator's manual (12 pages)

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MASTER / SLAVE Stereo Link

LINK

MASTER

SLAVE

The MASTER / SLAVE switches link channels 1 & 2, or

channels 3 & 4 for stereo operation. When linked, the associ-

ated 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 pre-

serves a stable left/right image when compressing a stereo source,

such as a vocal or horn submix.

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Figure 8. Active controls in Linked Mode

Stereo Linking in Compressor Mode

Linked Compressors use the rms sum of the two channels'

side-chains, and display this summed result on the side-chain

dBr meters of both channels. The Master channel settings deter-

mine the actual gain reduction characteristics.

Linked Controls in De-ess Mode

When channels are linked in De-ess mode, both channels

use the Master channels' control settings, but the de-essing es-

sentially 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 De-ess mode.

Stereo-Linked Limiters

When channels are linked, the Master channel Limit

Threshold setting determines the maximum output level for

both channels. However, the greater of the two peak-detected

signals is used to control the gain of both Master and Slave

channels. For example, if the Slave channel signal exceeds the

Mater channel's Limit Threshold by 3 dB, both channels are

limited by 3 dB. The Limit Headroom meters remain indepen-

dent for both channels, as the dynamics of the Master and Slave

channels may be quite diﬀerent.

LINK

MASTER

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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,

SLAVE

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, indicat-

ing both channels are being processed.

ACTIVE / BYPASS

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Selecting BYPASS disables all Compressor/De-esser process-

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ing, including the GAIN control. The side-chain dBr meter,

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threshold indicator and gain reduction meter continue to operate

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when a channel is bypassed. Similarly, the side-chain Listen

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function is also available. Channels can be individually by-

passed, even in Linked mode.

Note: The Limiter is active at all times and is not aﬀected

by the BYPASS switch. To bypass the Limiter, simply rotate the

Limiter Threshold control fully clockwise (+22 dBu setting).

ACTIVE

BYPASS

Manual-5

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Master / Slave Stereo Link; Active / Bypass - Rane C4 Operator's Manual

MASTER / SLAVE Stereo Link

ACTIVE / BYPASS

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