Denon AVR 3802 Owners Manual - Page 37
ADDITIONAL INFORMATION, Optimum surround sound for different sources, Surround back speakers - replacement remote
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ENGLISH Remote control unit Symptom Cause Measures This unit does not operate properly when remote control unit is used. • Batteries dead. • Remote control unit too far from this unit. • Obstacle between this unit and remote control unit. • Different button is being pressed. • < and > ends of battery inserted in reverse. • Replace with new batteries. • Move closer. • Remove obstacle. • Press the proper button. • Insert batteries properly. Page 16 16 16 - 16 16 ADDITIONAL INFORMATION Optimum surround sound for different sources There are currently various types of multi-channel signals (signals or formats with more than two channels). 2 Types of multi-channel signals Dolby Digital, Dolby Pro Logic, DTS, high definition 3-1 signals (Japan MUSE Hi-Vision audio), DVD-Audio, SACD (Super Audio CD), MPEG multi-channel audio, etc. "Source" here does not refer to the type of signal (format) but the recorded content. Sources can be divided into two major categories. Types of sources • Movie audio Signals created to be played in movie theaters. In general sound is recorded to be played in movie theaters equipped with multiple surround speakers, regardless of the format (Dolby Digital, DTS, etc.). Movie theater sound field FL SW C FR SL SR SB Multiple surround speakers (For 6.1-channel system) Listening room sound field FL SW C FR SL SR SB In this case it is important to achieve the same sense of expansion as in a movie theater with the surround channels. To do so, in some cases the number of surround speakers is increased (to four or eight) or speakers with bipolar or dipolar properties are used. SL: Surround L channel SR: Surround R channel SB: Surround back channel • Other types of audio These signals are designed to recreate a 360° sound field using three to five speakers. FL SW C FR In this case the speakers should surround the listener from all sides to create a uniform sound field from 360°. Ideally the surround speakers should function as "point" sound sources in the same way as the front speakers. SL SR These two types of sources thus have different properties, and different speaker settings, particularly for the surround speakers, are required in order to achieve the ideal sound. The AVR-3802's surround speaker selection function makes it possible to change the settings according to the combination of surround speakers being used and the surrounding environment in order to achieve the ideal surround sound for all sources. This means that you can connect a pair of bipolar or dipolar surround speakers (mounted on either side of the prime listening position), as well as a separate pair of direct radiating (monopolar) speakers placed at the rear corners of the listening room. Surround back speakers A 6.1-channel system is a conventional 5.1-channel system to which the "surround back" (SB) channel has been added. This makes it easy to achieve sound positioned directly behind the listener, something that was previously difficult with sources designed for conventional multi surround speakers. In addition, the acoustic image extending between the sides and the rear is narrowed, thus greatly improving the expression of the surround signals for sounds moving from the sides to the back and from the front to the point directly behind the listening position. Change of positioning and acoustic image with 5.1-channel systems FL SW C FR Change of positioning and acoustic image with 6.1-channel systems FL SW C FR SL ch SR ch SL ch SR ch SB ch Movement of acoustic image from SR to SL Movement of acoustic image from SR to SB to SL With this set, speaker(s) for 1 or 2 channels are required to achieve a 6.1-channel system (DTS-ES, etc.). Adding these speakers, however, increases the surround effect not only with sources recorded in 6.1 channels but also with conventional 2- to 5.1-channel sources. The WIDE SCREEN mode is a mode for achieving surround sound with up to 7.1 channels using surround back speakers, for sources recorded in conventional Dolby Surround as well as Dolby Digital 5.1-channel and DTS Surround 5.1-channel sources. Furthermore, all the Denon original surround modes (see page 30) are compatible with 7.1-channel playback, so you can enjoy 7.1-channel sound with any signal source. 2 Number of surround back speakers Though the surround back channel only consists of 1 channel of playback signals for 6.1-channel sources (DTS-ES, etc.), we recommend using two speakers. When using speakers with dipolar characteristics in particular, it is essential to use two speakers. Using two speakers results in a smoother blend with the sound of the surround channels and better sound positioning of the surround back channel when listening from a position other than the center. 2 Placement of the surround left and right channels when using surround back speakers Using surround back speakers greatly improves the positioning of the sound at the rear. Because of this, the surround left and right channels play an important role in achieving a smooth transition of the acoustic image from the front to the back. As shown on the diagram above, in a movie theater the surround signals are also produced from diagonally in front of the listeners, creating an acoustic image as if the sound were floating in space. To achieve these effects, we recommend placing the speakers for the surround left and right channels slightly more towards the front than with conventional surround systems. Doing so sometimes increases the surround effect when playing conventional 5.1-channel sources in the 6.1 surround or DTS-ES Matrix 6.1 mode. Check the surround effects of the various modes before selecting the surround mode. 37