Dolby Headphone; Brief Introduction - Philips SBCHP1500/17 Instructions For Use Manual

0912HP_EU 09-12-2003 12:12 Pagina 6
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Dolby Headphone

A brief introduction
Dolby Digital and DTS provide discrete left and right surround channels,
for more precise localization of sound and a more convincing, realistic
ambience. Discrete means that each channel contains its own particular
audio information and plays a unique role in creating a realistic surround
sound experience.
Up until now all this was reserved to speaker set-ups, but thanks to
Dolby Headphone, the ultimate experience in home theatre surround with
five (left, right, centre, rear-left and rear-right) discrete channels of digital
sound quality is now also available to headphones.
Dolby Headphone is a revolutionary signal processing system that works
not only with multi channel audio but also with conventional stereo signals.
In case of multi channel audio signals, Dolby Headphone technology will
process these signals in such a way that you will experience the sound
through your headphone as if it were coming from an actual five speaker
home entertainment set-up. And even when listening to conventional stereo
signals, Dolby Headphone will give you a much more natural and less
fatiguing listening experience, equivalent to a good two-speaker playback
system in a room with good acoustics.
Dolby Headphone technology can model the sound of a playback system in
up to three different listening environments, based on acoustic
measurements of real rooms:
• DH1 is a small, well-damped room appropriate for both movies and
music-only recordings.
• DH2 is a more acoustically live room particularly suited to music
listening, but also great for movies.
• DH3 is a larger room, more like a concert hall or movie theatre.
You can easily switch between these room modes and select whichever one
suits the particular program material and your own preferences.