Philips HP1500 manual Dolby Headphone, A brief introduction, English

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

6ENGLISH

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.