Yes. During playback of 5.1 material, the low-frequency effects of the ".1" channel are mixed into the Left and Right channels prior to Dolby Headphone processing-giving you the 5.1 surround sound experience. No. Dolby Headphone technology works well without the need for any individual adjustments or fine-tuning. The only thing you need is a system capable of processing audio with Dolby Headphone technology.

Dolby Digital programs can deliver surround sound with up to five discrete full-range channels: Left, Center, Right, Left Surround, Right Surround-plus a sixth channel for powerful low-frequency effects. As it needs only about one-tenth the bandwidth of the others, the LFE channel is referred to as a ".1" channel (and sometimes erroneously as the "subwoofer" channel).

Dolby Headphone technology is a signal-processing system that enables ordinary stereo headphones to portray the sound of a five-speaker surround playback system. It does this by virtualizing the sound of up to five speakers properly set in a good listening room. It can also be used to simulate a two-speaker stereo system.

The technology behind 5.1-channel Dolby Digital provides two surround channels, instead of the one from Dolby Surround, for more precise localization of sounds and a more convincing, realistic ambience. Also, Dolby Digital's surround channels cover the entire audible range (20 Hz-20,000 Hz), whereas the range of Dolby Surround's single surround channel is limited (100 Hz-7,000 Hz). The increased range of Dolby Digital further heightens realism and gives sound mixers more creative freedom.

Yes. Dolby Headphone technology can be used with any multichannel format after it has been decoded back to PCM, including multichannel music programs encoded with MLP Lossless on DVD-Audio discs. This means that music lovers will be able to enjoy one of the most exciting features of DVD-Audio on the road as well as at home. For this reason, Dolby Headphone technology could well give added impetus to broader acceptance of this new super-high-fidelity format.

Yes. Just like a multichannel speaker system, Dolby Headphone technology can be used in conjunction with processors that are intended to give a surround effect on stereo material. For example, Dolby Surround Pro Logic II, the latest Dolby multichannel matrix decoder, provides a wider, more enveloping soundfield on many conventional stereo recordings, which Dolby Headphone technology (in its five-channel mode) will reproduce to great effect.

Dolby Headphone technology can be included in almost anything with a headphone output. This includes portable DVD players, PCs, digital TVs, wireless products, and virtually any other device that can process stereo or multichannel audio and is equipped with a headphone output. Dolby Headphone is designed to process a 5.1 signal. It can also process stereo sources, but the stereo signal must first be converted to a 5.1 signal.

Dolby® Digital technology is an advanced form of digital audio coding that makes it possible to store and transmit high-quality digital sound far more efficiently than was previously possible. First used in movie theaters in 1992, Dolby Digital technology is the result of decades spent by Dolby Laboratories developing signal-processing systems that exploit the characteristics of human hearing.

Two-channel stereo products such as CD, MiniDisc, and MP3 and AAC players will feature a two-channel-only version of Dolby Headphone technology, indicated by the Dolby Headphone Stereo logo. On stereo material, just like multichannel material, Dolby Headphone technology gives you a much more natural and less fatiguing listening experience, equivalent to a good two-speaker playback system in a room with good acoustics.

Nobody is more enthusiastic about multichannel sound than Dolby Laboratories. However, we also recognize the importance of standardization, compatibility, and the reluctance of producers to release, and retailers to stock, more than one version of a given program. As a result we will not release CDs with Dolby Digital soundtracks, or encourage others to do so. channel music CDs, such as those released by DTS, are non-standard; they don't provide the PCM audio specified by the CD "Red Book.

These new discs combine traditional DVD and CD formats with HE AAC files that are encoded with Dolby Headphone technology. You can download these files to your personal MP3 player and enjoy the sound quality of Dolby Headphone technology in devices that do not have Dolby Headphone capability.

with Dolby Digital program material, "Dolby Digital" on a component such as a DVD player indicates that it incorporates Dolby Digital decoding, but not the number of channels. Many program sources, including all DVD players and digital cable set-top boxes, provide a built-in, two-channel Dolby Digital decoder with analog stereo outputs (see question 7). For 5.

If your current system consists of separate audio components, you will need a 5.1-channel Dolby Digital decoder and a six-channel preamplifier (available separately or combined in one convenient unit). The preamplifier's outputs will plug into your existing power amplifiers. See Figure 12-1. If you have an older, integrated A/V receiver with Dolby Surround Pro Logic that does not provide external inputs to its built-in amplifiers, you have two choices.

A headphone amplifier, or headphone amp, is simply a small amplifier specifically designed to drive the miniature audio drivers inside headphones. Because headphones are often used in portable applications, many headphone amps are conveniently battery powered. Headphone amps can also be used in a work station or desktop setting where they sometimes act as a switch between various sound sources or as a pre-amp for powered desktop speakers.

Mobil 1 with SuperSyn Technology exceeds the latest industry and OEM requirements. It is designed for vehicles under warranty and will provide protection for the maximum oil change interval recommended in your owner's manual or by your oil life sensor. The overall goal for Mobil 1 has always been to protect your engine, even under the most severe conditions, such as cold starting temperatures, extreme high-temperature operations and high-load conditions.

Technically speaking, you already have a copyright once your material is put into tangible physical form (ie; recorded on CD or tape). However, we urge you to register your copyright with the Library of Congress as soon as possible, as you wouldn't be able to file any kind of infringement suit without one, even if someone has blatantly stolen your material.

To receive the 5.1-channel soundtrack on programs such as the Dolby Digital-encoded theatrical films broadcast by DIRECTV on its pay-per-view channels, you need a new satellite receiver that provides a Dolby Digital output (the "Digital" output on conventional satellite receivers does not handle Dolby Digital signals). As with other Dolby Digital components, you connect the Dolby Digital coaxial or optical output to a digital input on your Dolby Digital decoder unit.

That depends on the computer's configuration and its DVD/audio card, so check the specifications carefully to be sure you get the audio capability you want. Most PCs can be connected to external playback equipment ranging from amplified stereo speakers to a full 5.1-channel playback system. The latter include not only full home theater systems, but compact, multichannel PC speaker systems incorporating amplifiers and Dolby Digital and/or Dolby Surround Pro Logic decoding.

Yes, it is. To meet the demanding requirements of today's specifications (and our customers' expectations), Mobil 1 with SuperSyn uses high-performance fluids, including polyalphaolefins (PAOs), along with a proprietary system of additives. Each Mobil 1 with SuperSyn viscosity grade uses a unique combination of synthetic fluids and selected additives in order to tailor the viscosity grade to its specific application.