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Yamaha DSP-AZ1 ■Early reflections, ■Reverberations, Understanding sound fields, DIGITAL SOUND FIELD PROCESSING (DSP)

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DIGITAL SOUND FIELD PROCESSING (DSP)Understanding sound fields

A sound field is defined as the “characteristic sound reflections of a particular space”. In concert halls and other music venues, we hear early reflections and reverberations as well as the direct sound produced by the artist(s). The variations in the early reflections and other reverberations among the different music venues is what gives each venue its special and recognizable sound quality.

Yamaha sent teams of sound engineers all around the world to measure the sound reflections of famous concert halls and music venues, and collect detailed sound field information such as the direction, strength, range, and delay time of those reflections. Then we stored this enormous amount of data in the ROM chips of this unit.

■Early reflections

Reflected sounds reach our ears extremely rapidly (50 ms – 80 ms after the direct sound), after reflecting from one surface only — for example, from the ceiling or a wall. These reflections provide vital information to our ears. Early reflections actually add clarity to the direct sound.

■Reverberations

These are caused by reflections from more than one surface — walls, ceiling, the back of the room — so numerous that they merge together to form a continuous sonic “afterglow”. They are non-directional, and lessen the clarity of the direct sound.

Reflected sounds image

E-86

Contents

AV Amplifier OWNER’S MANUAL ■For U.K. customers ■Special Instructions for U.K. Model CAUTION Contents CHECKING THE PACKAGE CONTENTS Introduction ■Built-in 8-channelpower amplifier ■Digital Sound Fields (DSP) ■CINEMA-DSP:Dolby Digital + DSP and DTS + DSP ■Virtual CINEMA DSP and SILENT CINEMA DSP ■Various decoders to support the newest sound effect technology ■Various input and output jacks ■Multi-functionremote control CONTROLS AND FUNCTIONS Front panel 45 6 78 9 0 q w e r y u ■Opening and closing the front panel door Remote control Page ■Installing batteries in the remote control ■About changing batteries ■Using the remote control Front panel display 0 q w er Rear panel 9 0 q w e Preparations ■8-speakerconfiguration –full CINEMA-DSP– ■6-speakerconfiguration –Hi-FiDSP– ■5-speakerconfiguration –standard5.1 channel– ■ 4-speakerconfiguration –minimumrequirement– ■Speaker configurations and speaker mode ■Placing the main speakers ■Placing the center speaker ■Placing the front effect, rear and rear center speakers ■When you use a projection screen ■Placing the subwoofers CONNECTIONS Before connecting components ■ Connecting an FM/AM tuner ■ Connecting a CD recorder ■Connecting a CD player ■Connecting an MD recorder/tape deck ■Connecting a turntable ■About the video jacks ■Connecting a DVD player ■Connecting a digital TV/TV ■Connecting a cable TV tuner ■Connecting a satellite tuner ■Connecting a VCR ■Connecting an LD player ■Connecting a video monitor ■Connecting the SPEAKERS terminals ■Connecting a front subwoofer ■Connecting a rear subwoofer ■Impedance selector switch ■Connecting external amplifiers ■Connecting an external decoder ■Connecting a game console Connecting the power supply cords ■Connecting the AC power cord AC OUTLET(S) ■VOLTAGE SELECTOR (General and China models) ON-SCREENDISPLAYS (OSD) OSD modes Selecting the OSD mode ■Summary of SPEAKER SET items 1A through 1G ■Mode setting ■1A CENTER SP (center speaker mode) ■1B MAIN SP (main speaker mode) ■1C REAR L/R SP (rear speaker mode) ■1D REAR CT SP (rear center speaker mode) ■1E LFE/BASS OUT (bass output mode) ■1F FRONT EFCT SP (front effect speaker mode) ■1G MAIN LEVEL ■Button/switch to be used for adjustment ■Before you begin TEST DOLBY SUR TEST DSP Basic operations BASIC PLAYBACK ■BGV (Back Ground Video) function ■To mute the sound ■When you have finished using this unit ■Notes on the digital signal ■Notes on playing DTS-CD/LDs ■Notes on playing an LD source Selecting a sound field program ■Normal stereo reproduction ■Displaying the information about the input source ■Playing the Dolby Digital EX or DTS ES software ■ Selecting PRO LOGIC, PRO LOGIC or Neo: ■Virtual CINEMA DSP ■SILENT CINEMA DSP ■DTS 96/24 ■Special considerations when recording DTS Advanced operation SET MENU ITEMS Operating the SET MENU ■About the test tone 3 HP TONE CTRL (headphone tone control) 4 CENTER GEQ (center graphic equalizer) 5 REAR CT GEQ (rear center graphic equalizer) ■6A L, C, R EQ (main L/center/main R equalizer) ■6B FRNT EFCT EQ (front effect equalizer) ■6C REAR L/R EQ (rear L/R equalizer) ■6D REAR CT EQ (rear center equalizer) ■8A <1> to <4> COAXIAL INPUT jacks ■8B <5> and <6> OPTICAL OUTPUT jacks ■8C <7> to <12> OPTICAL INPUT jacks ■8D [A] to [C] COMPONENT VIDEO INPUT jacks 9 INPUT MODE (initial input mode) 10 PARAMETER INI (parameter initialization) 11 LFE LEVEL 12 DYNAMIC RANGE 13 SP DELAY ■Setting by “msec” ■Setting by “meters” ■Setting by “feet” ■ DIMMER ■OSD SHIFT (OSD off-setposition) ■BLUE BACK ■18A CENTER to (direction of the center channel signals) ■18B SWFR to (direction of the signals input into the subwoofer) ■ Main unit control area ■ Component control area ■Source select ■About Zone2 ■About OPTN ■Light up function Setting the manufacturer code ■Changing the component category (Library) ■Amplifier Library (L:AMP) ■Factory setting for Library and manufacturer Programming a new remote control function (Learn feature) ■Programmable buttons ■Operating a tuner (TUNER area) ■Operating a CD player/CD recorder (CD and CD-Rareas) ■Operating an MD recorder (MD/TAPE area) ■Operating a DVD player (DVD area) ■Operating an LD player (D-TV/LDarea) ■ Operating a VCR (VCR 1, VCR 2 and VCR3/DVR areas) ■Operating a TV/digital TV (D-TV/LDarea) ■ Operating a cable or satellite TV tuner (CABLE and SAT areas) Using the Macro feature ■Operating the macro ■Programming a macro Page Changing the source name in the display window Clearing a learned function or macro ■To clear a learned function ■To clear the macro function Clearing learned functions, macros, renamed source names, and setup manufacturer codes ADJUSTING THE LEVELS OF THE EFFECT SPEAKERS ■Canceling the sleep timer ■Setting the sleep timer ■A sample of system configuration and connections ■Special considerations when using DTS software Remote control in ZONE Sound field programs ■Early reflections ■Reverberations Recreating a sound field ■Virtual sound sources ■Echo patterns HI-FI DSP-SOUNDFIELD PROGRAM ■Tokyo ■Freiburg ■Royaumont ■Village Gate ■Village Vanguard CINEMA-DSPSOUND FIELD PROGRAM The sound design of CINEMA-DSPsound field programs Sound field images of the CINEMA-DSPprograms Page ■Table of program names for each input format ■DOLBY PRO LOGIC + DSP sound field effect ■Dolby Digital/DTS + DSP sound field effect ■Dolby Digital EX/DTS ES + DSP sound field effect ■Mono Movie ■Variety/Sports ■Normal/EX/DTS-ES/ESMatrix 6.1/ES Dis crete ■Enhanced/EX/ES ■To reset some of the parameters to the factory-setvalues ■To reset all of the parameters to the factory set values ■EFCT TRIM (Effect Trim) ■INIT. DLY (Initial Delay) ■ROOM SIZE/P. ROOM SIZE for the presence sound field ■LIVENESS ■P. INIT. DLY (Presence Initial Delay) ■S. INIT. DLY (Surround Initial Delay) ■S. DELAY (Surround Delay) ■S. ROOM SIZE (Surround Room Size) ■S. LIVENESS (Surround Liveness) ■RC INI. DLY (Rear Center Initial Delay) ■RC ROOM SIZE (Rear Center Room Size) ■REV. TIME (Reverberation Time) ■REV. DELAY (Reverberation Delay) ■REV. LEVEL (Reverberation Level) For 8ch Stereo ■CT LEVEL (Center Level) ■RL LEVEL (Rear Left Level) ■RC LEVEL (Rear Center Level) ■RR LEVEL (Rear Right Level) Appendix ■ General Page ■ Remote control ■L, C, R preset value ■FRONT and REAR preset value ■ HIGH frequency ■ PEQ frequency REFERENCE CHART FOR THE INPUT AND OUTPUT JACKS ■ Audio Section ■ Video Section