Arcam FMJ AV9 User Manual download pdf (Page 31)

AV9

E-30

English

AV9

E-31

DSP Effects Modes

The AV9 has a number of effects modes that can be used to enhance a stereo signal and to make use of

the surround loudspeakers. DSP effects modes are only available with stereo source signals.

You can listen to the inuence of any effect mode by playing a CD, then pressing pause, when the

decaying reverberation effect can be heard.

Available effects modes

Music: Music surround makes full use of the additional speakers placed at the centre, sides and rear of

the room. This effect uses ambiance extraction for the side and rear speakers and offers the most subtle

surround processing with no reverberation or reections.

Party: The Party effect allows unprocessed stereo signals to be played over all speakers for background

music or for maximum acoustical output of the system.

Club: The Club effect generates reections and short reverberation information to the front, side and

rear speakers. It simulates a small club venue, such as a Jazz Club.

Concert Hall: The Concert Hall effect generates the ambient information for the simulation of a medium

size hall. Reections and medium length reverberation information are sent to all channels.

Sports: Sports stadium effect is ideal for use when watching live sports events which would normally

be in stereo. The open ambience of a sports stadium is actively recreated around you, except from the

centre channel which is kept clear for commentary.

Church: The Church effect uses a reverberation algorithm which emphasises rich, smooth reverberant

decay in large spaces. As its name suggests, it works well for simulating a space with long reverberation

time relative to its size, such as a large church or cathedral.

About THX

cinema processing

THX technology

Re-Equalization

™

The tonal balance of a lm soundtrack will be excessively bright and harsh when played back over

audio equipment in the home because lm soundtracks were designed to be played back in large movie

theatres using very different professional equipment. Re-Equalization restores the correct tonal balance

for watching a movie soundtrack in a small home environment.

Timbre Matching

™

The human ear changes our perception of a sound depending on the direction from which the sound is

coming. In a movie theatre, there is an array of surround speakers so that the surround information

is all around you. In a home theatre there are usually only two speakers located at either side of your

head. The Timbre Matching feature lters the information going to the surround speakers so that they

more closely match the tonal characteristics of the sound coming from the front speakers. This ensures

seamless panning between the front and surround speakers.

Adaptive Decorrelation

™

In a movie theatre, a large number of surround speakers help create an enveloping surround sound

experience, but in a home theatre there are usually only two speakers. Two surround speakers can

sound like headphones that lack spaciousness and envelopment. The surround sounds will also collapse

into the closest speaker as you move away from the middle seating position. Adaptive decorrelation

slightly changes one surround channel’s time and phase relationship with respect to the other surround

channel. This expands the listening position and creates – with only two speakers – the same spacious

surround experience as in a movie theatre.

ASA (Advanced Speaker Array)

™

ASA is a proprietary THX technology which processes the sound fed to two surround and two surround

back speakers to provide the optimal surround sound experience. ASA is used in two modes; THX Ultra2

Cinema and THX MusicMode.

THX Standards

Lucaslm dene a series of technical performance standards that equipment must exceed before it is

awarded THX certication. Several levels of performance standards are dened, the most demanding

standards are set for THX Ultra2. THX Ultra2 requirements cover every aspect of the product including

pre-amplier performance and operation, video pass through, and hundreds of other parameters in both

the digital and analogue domain.

Before any home theatre component can be THX Ultra2 certied, it must incorporate all the technology

features above and also pass this rigorous series of quality and performance tests. Only then can a

product feature the THX Ultra2 logo, which is your guarantee that the home cinema products you

purchase will give you superb performance for many years to come.

A list of available DVD software titles encoded with Dolby Digital Surround EX technology can be found at

www.thx.com and www.dolby.com.

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Arcam FMJ AV9 User Manual Page 31

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