NAD M15 HD2 AV Manuel du propriétaire télécharger pdf (Page 13)

DSP OPTIONS

The following signal processing parameters can be setup under the DSP

(Digital Signal Processing) Options menu.

IMPORTANT NOTICE

 TheM15HDisanAVSurroundSoundPreamplierandthereforehas

nospeakers.Thementionof“Speaker(s)”inthismanualreferstothe

speakersofyourexternalamplierasinterfacedwiththeM15HD.

LIP SYNC DELAY

DSP Options has the feature ‘Lip Sync Delay’ whose function is to match any

delay that may occur in the picture relative to the audio.

By varying ‘Lip Sync Delay’ from 0ms to 120ms, one can delay the audio

output in order to synchronize it with the video image.

ADC ANALOGTODIGITAL CONVERTER RATE

An analog audio input is converted to digital signal by making use of M15

HD’s superb circuitry called analog-to-digital converter (ADC).

Using this ADC Rate feature, the sampling rate of the resulting digital audio

signal (available at the digital output ports) can be converted into three

levels – 48K, 96K and 192K. Make sure that the associated equipment will

be able to handle the applicable digital audio signal level.

AUDYSSEY MultEQ

Audyssey MultEQ becomes available among the DSP options only after

successfully completing Audyssey Auto Calibration (accessible through

the Setup Menu). Refer also to Audyssey Auto Calibration segment of the

Speaker Setup under Operation – Using the M15 HD – Setup Menu.

Audyssey MultEQ can be set to the following levels

Audyssey: Audyssey developed target curve.

Flat: This setting is appropriate for very small or highly treated rooms

in which the listener is seated quite close to the loudspeakers. MultEQ

lters are used in the same way as the Audyssey curve, but it does not

apply a high frequency roll-o.

NAD: Ideal “in room” response developed by NAD engineers along with

Audyssey Engineers.

O: MultEQ lters are not used or no measurement process at all.

NOTES

• “AUDYSSEY”andalitgreenboxiconareilluminatedattheVFDifNAD,

AudysseyorFlatisselected.If“O”isselected,“AUDYSSEY”andthe

greenboxiconwillnotbeilluminated.

• IfNAD,AudysseyorFlatisselectedandchangesaredoneatthe“Tone

Controls”,“SpeakerConguration”,“SpeakerLevels”and“Speaker

Distance”settings,“AUDYSSEY”andalitredboxiconareilluminated

attheVFD.RestoretheparametertoitspreviouslycalibratedAudyssey

settingbyadjustingbackthealteredconguration.

• AudysseyMultEQoptionscanalsobedirectlyselectedorchangedusing

HTRM’sAUDYSSEYbuttonwithDEVICESELECTORsettoAMPmode.

ToggleAUDYSSEYbuttontoselect“AudysseyMultEQ”andthenusethe

[D/F]toselectthroughtheAudysseyMultEQoptions.PressAUDYSSEY

againtosavetheselectedoptionandatthesametimemoveontothe

nextmenusettingorexitthemenusettingaltogether.

AUDYSSEY DYN EQ AUDYSSEY DYNAMIC EQ

Audyssey Dynamic EQ solves the problem of deteriorating sound quality as

volume is decreased by taking into account human perception and room

acoustics. By carefully combining information from incoming source levels

with actual output sound levels in the room, Audyssey Dynamic EQ delivers

unprecedented sound reproduction at all volume levels.

Audyssey Dynamic EQ selects the correct frequency response and surround

volume levels moment-by-moment. The resulting bass response, octave-

to-octave balance and surround impression remained the same despite

changes in volume.

Audyssey Dynamic EQ is designed to work in conjunction with Audyssey

MultEQ. Dynamic EQ determines the proper loudness compensation based

on the sound pressure level measurements MultEQ provides. Audyssey

Dynamic EQ working in tandem with Audyssey MultEQ provides the right

listening conditions for every listener at any volume level.

On: Activate Audyssey Dynamic EQ function.

O: Defeat Audyssey Dynamic EQ function.

NOTE

 AudysseyDynamicEQandAudysseyDynamicVolume(seebelow)

canbedirectlyselectedorchangedusingHTRM’sAUDYSSEYbutton

withDEVICESELECTORsettoAMPmode.ToggleAUDYSSEYbuttonto

select“DynEQ”or“DynVol”andthenusethe[D/F]toselectthrough

theirrespectiveoptions.PressAUDYSSEYagaintosavethesettingand

atthesametimemoveontothenextoptionorexitthemenusetting

altogether.

Oset: Adding a Volume Oset will have the eect of reducing the

amount of boost applied by Dynamic EQ, for any given volume setting. As

a consequence, the amount of overall digital attenuation required is also

reduced. For example, with the Oset set to 10dB, and a volume setting of

-30dB, the loudness curve selected will be for a volume level of -20dB.

The oset level can be set from 0dB to 15dB.

OPERATION

USING THE M15 HD  MAIN MENU

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NAD M15 HD2 AV Manuel du propriétaire Page 13

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