Denon AVR-4802R User Manual Page 81

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Surround
The AVR-4802R is equipped with a digital signal processing circuit that lets you play program sources in the surround mode to achieve the same
sense of presence as in a movie theater.
(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 Digitals 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
No. recorded channels (elements)
No. playback channels
Playback channels (max.)
Audio processing
High frequency playback limit of surround
channel
Dolby Digital
5.1 ch
5.1 ch
L, R, C, SL, SR, SW
Digital discrete processing Dolby Digital encoding/decoding
20 kHz
Dolby Pro Logic
2 ch
4 ch
L, R, C, S (SW - recommended)
Analog matrix processing Dolby Surround
7 kHz
2 Dolby Digital compatible media and playback methods
Marks indicating Dolby Digital compatibility: .
The following are general examples. Also refer to the players operating instructions.
Media
LD (VDP)
DVD
Others
(satellite broadcasts, CATV, etc.)
Dolby Digital output jacks
Coaxial Dolby Digital RF output jack
1
Optical or coaxial digital output
(same as for PCM)
2
Optical or coaxial digital output
(same as for PCM)
Playback method (reference page)
Set the input mode to AUTO.
(Page 47)
Set the input mode to AUTO.
(Page 47)
Set the input mode to AUTO.
(Page 47)
1 Please use a commercially available adapter when connecting the Dolby Digital RF output jack of the LD player to the digital input
jack.
Please refer to the instruction manual of the adapter when making connection.
2 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-4802R, switch the DVD players 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 jacks to the AVR-4802R.
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