Denon AVR 4806 Owners Manual - Page 136

Additional Information 2 Dolby Digital compatible media and playback methods Marks indicating Dolby Digital compatibility: . The following are general examples. Also refer to the player's operating instructions. Media DVD 1 Dolby Digital output Playback method terminals (reference page) Optical or coaxial digital output (same as for PCM) 1 Set the input mode to "AUTO" ( page 45). Others (satellite broadcasts, CATV, etc.) Optical or coaxial digital output (same as for PCM) Set the input mode to "AUTO" ( page 45). 1: Some DVD digital outputs have the function of switching the Dolby Digital signal output method between "bit stream" and "(convert to) PCM". When playing in Dolby Digital surround on the AVR-4806, switch the DVD player's output mode to "bit stream". In some cases players are equipped with both "bit stream + PCM" and "PCM only" digital outputs. In this case connect the "bit stream + PCM" terminals to the AVR-4806. w Dolby Pro Logic II • Dolby Pro Logic II is a new multi-channel playback format developed by Dolby Laboratories using feedback logic steering technology and offering improvements over conventional Dolby Pro Logic circuits. • Dolby Pro Logic II can be used to decode not only sources recorded in Dolby Surround ( ) but also regular stereo sources into five channels (front left, front right, center, surround left and surround right) to achieve surround sound. • Whereas with conventional Dolby Pro Logic the surround channel playback frequency band was limited, Dolby Pro Logic II offers a wider band range (20 Hz to 20 kHz or greater). In addition, the surround channels were monaural (the surround left and right channels were the same) with previous Dolby Pro Logic, but Dolby Pro Logic II they are played as stereo signals. • Various parameters can be set according to the type of source and the contents, so it is possible to achieve optimum decoding ( page 56). e Dolby Pro Logic IIx • Dolby Pro Logic IIx furthers the matrix decoding technology of Dolby Pro Logic II to decode audio signals recorded on two channels into up to 7.1 playback channels, including the surround back channel. Dolby Pro Logic IIx also allows 5.1-channel sources to be played in up to 7.1 channels. The mode can be selected according to the source. The Music mode is best suited for playing music, the Cinema mode for playing movies, and the Game mode for playing games. The Game mode can only be used with 2-channel audio sources. Sources recorded in Dolby Surround • These are sources in which three or more channels of surround have been recorded as two channels of signals using Dolby Surround encoding technology. • Dolby Surround is used for the sound tracks of movies recorded on DVDs, LDs and video cassettes to be played on stereo VCRs, as well as for the stereo broadcast signals of FM radio, TV, satellite broadcasts and cable TV. • Decoding these signals with Dolby Pro Logic makes it possible to achieve multi-channel surround playback. The signals can also be played on ordinary stereo equipment, in which case they provide normal stereo sound. • There are two types of DVD Dolby Surround recording signals. q 2-channel PCM stereo signals w 2-channel Dolby Digital signals 2 Sources recorded in Dolby Surround are indicated with the logo mark shown below Dolby Surround support mark: Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic", "Surround EX" and the double-D symbol are trademarks of Dolby Laboratories. r Dolby Headphone • This is a three-dimensional sound technology developed jointly by Dolby Laboratories and Lake Technology Ltd. of Australia for achieving surround sound using regular headphones. • Previously, when using headphones all the sounds resonated inside the head and it was uncomfortable to listen with headphones for long periods of time. Dolby Headphone simulates speaker playback in a room and places the sound at the front or the sides, outside the head, to achieve a powerful sound like the sound of movie or home theaters. This technology is mainly for multichannel audio/video equipment with Dolby Digital or Dolby Pro Logic Surround decoding functions and works with a high performance digital signal processing (DSP) chip. • Dolby Headphone is effective not only for multichannel sources but also for stereo programs. • On the AVR-4806, it is possible to output signals encoded in the Dolby Headphone mode from the recording output terminal and record them on a separate recorder. 136