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MDX 5.1

Whenit’sindicatedtobringupdialoglevelandspeech

intelligibility,youmayendupwithsomethinglikethelevel

diagrampresentedinFig4.

Fig 4. MDX5.1 Example. Preset named “Spectral Dialog Lift 1”.

In this example, low level boost and spectral shaping is

added to the Center channel.

The diagram shows more low level gain being added to

the Center channel than to the other channels. It also

showstheCenterchannelatlowlevelbeingsubjectedto

extra boost at high frequencies, thereby helping speech

intelligibility further. The spectral boost is obtained

by bringing the Hi band Steer up, and/or the Hi band

Threshold down in the sidechain which processes the

Center channel.

When Steer and Thresholds are set identically in all three

frequencybands,spectralshapingisnotinvoked.InFig

4,theL/RFrontandL/RSurroundcurvesareexamplesof

channels with no spectral shaping.

Tip: To produce multiple mastering versions from the

same source material, start doing the one for the highest

resolution. Lower resolution versions can be achieved by

adjustingtheLimitThresholdtocomplywiththealternative

deliveryformat,thenadjustingtheRefLeveltooptimize

results under the new, restricted dynamic range conditions.

Inmanycases,nofurthertweakingwillbeneeded.

Please be advised that some reproduction systems distort

when down-mixing hot multichannel signals to stereo.

Therefore,don’tabusemultichannelformatsbybringingall

channelscloseto0dBFSatthesametime,exceptforshort

duration, loud incidents.

Whenmakingthefinalmasteringadjustments,try

changing the Ref Level parameter up and down a

few dB. This is an efficient way of trimming

hundredsofparametersinMDX5.1atthesame

time. Listen to the result, while deciding what is the

optimum setting for that particular material.

TC Electronic SYSTEM 6000 MKII Algorithm Manual

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