Denon S-301 Owners Manual - Page 68

ENGLISH Additional Information Surround [1] Dolby Surround q Dolby Digital Dolby Digital is the multi-channel digital signal format developed by Dolby Laboratories. Dolby Digital consists of up to "5.1" channels - front left, front right, center, surround left, surround right, and an additional channel exclusively reserved for additional deep bass sound effects (the Low Frequency Effects - LFE channel, also called the ".1" channel, containing bass frequencies of up to 120 Hz). Unlike the analog Dolby Pro Logic format, Dolby Digital's main channels can all contain full range sound information, from the lowest bass, up to the highest frequencies - 22 kHz. The signals within each channel are distinct from the others, allowing pinpoint sound imaging, and Dolby Digital offers tremendous dynamic range from the most powerful sound effects to the quietest, softest sounds, free from noise and distortion. 2 Dolby Digital and Dolby Pro Logic Comparison of home surround systems Dolby Digital Dolby Pro Logic No. recorded channels (elements) 5.1 ch 2 ch No. playback channels 5.1 ch 4 ch 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 Dolby Digital output terminals Playback method (reference page) LD (VDP) Coaxial Dolby Digital RF output terminal 1 Set the input mode to "AUTO" ( page 51). DVD Optical or coaxial digital output (same as for PCM) 2 Set the input mode to "AUTO" ( page 51). Others (satellite broadcasts, CATV, etc.) Optical or coaxial digital output (same as for PCM) Set the input mode to "AUTO" ( page 51). 1: Use a commercially available adapter to connect Dolby Digital RF output signals to the digital input terminals. (Refer to the adapter's operating instructions.) Please refer to the instruction manual of the adapter when making connection. 2: To play in Dolby Digital Surround on the S-301, set "SETUP" - "AUDIO SETUP" - "DIGITAL OUT" to "NORMAL" in the setup. (The factory default is "NORMAL".) Additional information 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. 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 II 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: Playback channels (max.) Audio processing High frequency playback limit of surround channel L, R, C, SL, SR, SW L, R, C, S (SW - recommended) Digital discrete processing Dolby Digital encoding / decoding Analog matrix processing Dolby Surround 20 kHz 7 kHz Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic" and the double-D symbol are trademarks of Dolby Laboratories. 65 ENGLISH