Pioneer VSX-D908S Techno Tidbits & Problem-solving, Dolby Digital, Laser disc format

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Techno Tidbits & Problem-solving

Dolby Digital

Dolby Digital is a compression format which records the sound of 6 channels of the theater surround system (Dolby Digital) on the movie film digital track. Of the 6 channels, the sub woofer channel is intended for bass only, and because the frequency range is smaller than the main channel, it is expressed as 5.1 channel.

Dolby Digital is the name of the Dolby surround multi-channel digital system that was developed after the Dolby Surround System and Dolby Pro Logic Surround System.

5.1 channel digital

4 channel analog

surround track

sound track (Matrix)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dolby

Digital encoding

Dolby Digital for movie films

The number of movies made using Dolby Digital since 1992 has exceeded 300 and continues to increase. For compact disc players and laser disc digital sounds, 16 bits are used to sample the original analog audio waveform and sampling is carried out 44,100 times every second. However because an enormous amount of recording signal data is required for the multi channel system with this method, AC-3 is used to compress the data.

In reproducing audio signals, the smaller the bit number used, the lower the sound quality. With AC- 3, drop in auditory sound quality is prevented by using masking technology and digital filtering technology based on the human auditory characteristics.

Laser disc format

Laser discs are now available on the market in large numbers. This means that the recording of different format audio signals on the laser disc raises the important question of compatibility with existing laser discs. Dolby Digital tracks on Laser discs record signals using the space of one analog audio channel so it will maintain compatibility with existing discs and players.

As shown in the following figure, the digital audio sounds of Dolby Digital discs can be played back as currently done. Analog sounds are played back by using the other channel without the Dolby Digital signals for monaural audio signals.

Analog sound

 

Dolby Digital

 

 

(Monaural)

 

 

sound

 

 

 

 

Digital

 

 

 

 

 

 

Video

 

 

 

 

 

 

sound

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

4

6

8

10

12

14 MHz

 

 

 

 

 

 

Frequency

Comparison with Dolby Pro Logic Surround

Dolby Digital is also known as the 5.1 channel system. It is equipped with 5 channels (front left, front right, center, surround left, surround right) in the frequency range from 20 Hz to 20 kHz and an independent Low Frequency Effect (LFE) channel. The sub woofer channel is also called Low Frequency Effect (LFE).

The sub woofer channel can be used as desired to enjoy strong bass sounds.

The table on the next page shows the comparison with Dolby Pro Logic Surround effects.

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Contents VSX-D908S This is for your security For Canadian modelInformation to User Important Safety InstructionsFeatures Table of Contents How to Use This Manual Checking the Supplied AccessoriesInstalling the Receiver Before You StartOperating range of remote control unit Preparing the Remote ControlOpening the Front Panel Loading the batteriesCassette deck placement Connecting Your EquipmentAudio Components Audio cordsAudio/Video cords Video ComponentsFront Digital audio cord Optical cable Or standard video cord Digital ConnectionsDigital audio cords/Optical cables DVD/LD player Or LD player RF demodulator RFD-1 Example of Connection Using a DVD/LD or LD playerWhen playing LD recorded in Dolby Digital Components equipped with 5.1 channel analog output jacks External Decoder InputAntennas Using external antennasAM loop antenna To improve FM receptionFront Speakers a To be used as Center Speaker Powered sub wooferSpeakers Speaker impedance First turn the receiver off, then press the power buttonSpeaker terminals While holding down the Speakers buttonFront Center Speaker placementRight Sub WooferPower connections AC Outlets Connecting additional amplifiersSwitched Total 100 W 0.8 a MAX Unswitched 100 W 0.8 a MAXDisplay Displays & Controls~ Tuner indicators = LFE indicator@ Speaker indicators # H.P headphonesFront Panel = Master Volume Remote Control Remote Setup button System SET UP button# Master Volume button Signal Select buttonSetting Up for Surround Sound Surround Sound Set UpPress System Setup button On Screen DisplayGo on to the next page to continue set up Press Enter Speaker SettingSelect Speaker Setting with the 5´ buttons Center default setting is Large Front default setting is LargeSurround default setting is Large SUB Woofer default setting is YESUsing the commands below Channel DelayUse the 5´ buttons to select a speaker. Specify Distance from your listening position to each speakerChannel Level Select aTEST Tone modeAuto automatic Test Tone Manual manual Test ToneManu mode Auto modeIf you are using a Sound Pressure Level SPL meter To exit before outputting the Test ToneSpecify the crossover frequency for your small speakers Select Exit to return to the System Setup MenuCrossover Network Press Enter to return to the previous screen Select Setting Start and press EnterBass Peak Level Manager Use the 2 or 3 arrows to choose OFF, MID or MAX Range ControlChoose a Digital in and assign it an input function Digital-In SelectPlaying Sources with Stereo Sound Basic PlaybackSound modes Standard modeDSP modes Stereo modeHall JazzSurrround operation Selecting a Sound ModeSelect the sound mode For more see Sound Modes p Playing Sources with Dolby Digital or DTS SoundAnalog Digital Switching ANALOG/DIGITAL Signal InputReducing noise during playback Digital NR function Each press switches Midnight Listening mode on or off Listening in Midnight Listening ModePress Midnight Midnight96kHz24bit Performance External decoder playback front panel onlyPress External Decorder External DecorderDirect playback front panel only Listening in Loudness Mode front panel onlyAdjusting bass and treble tone control front panel only FL Dimmer Adjusting the brightness of the display front panel onlyPress FL Dimmer Automatic and Manual Tuning Using the TunerMPX Mode Adjust the volumeTo cancel before inputting the frequency Direct Access TuningPress Tuner Press Band button on the remote or the FM/AMMemorizing Frequently Used Stations Using the front panelTune in the desired station Press Memory to activate the memory functionRecalling Memorized Stations Using the remote controlSetting Up the Remote Control to Control Other Components Remote Control of Other componentRecalling preset codes Press Remote SetupPress the Multi Control button for the component Press Remote Setup to exit the Preset Recall Setup modeYou want to control Press the 5´ buttons repeatedly to display the nameSelected button continues to blink Remote Setup menu appears on your TV screenTo cancel Learning Setup mode Press the button to be programmed Press Remote Setup to exit the Learning Setup modeInches To program additional operations for the current componentDVD or LD player operations Remote Controlling Other ComponentsSouce Enter Side A/BSource VCR & DVD video recorder operationsChannel -/+ Use to select channelsDisc CD player operationsDisc DISP/CHARA MD operationsGuide STB satellite tuner operationsExit MenuSTB DTV operations TV operations Press to switch the TV on or offDTV Menu DTV ON/OFFCassette deck operations Press to switch the cassette deck on or off notNumber buttons 1~6 Possible with all modelsRecord monitor Tape 2 Monitor Using Other FunctionsRecording from Audio Components Recording from Digital Audio Components Recording from Video Components Multi Operations To cancel MULTI-OPERATION Setup modePress Remote Setup Press the Multi Operation button on the remote control 47Press Remote Setup to exit the MULTI-OPERATION Setup modePerforming multi operations Multi Control buttons start to blinkSystem OFF You can repeat this process for up to five commandsUsing the system off button Setting up the direct functionOFF MID MAX Press and hold both Remote SetupRemote Back Light Erasing the multi operations Resetting the Remote ControlErasing all signals learned & preset codes Erasing the learned remote control commandsMULTI-ROOM connections Set up exampleMulti-Room Press System Setup on the remote control MULTI-ROOM set upUp mode and press Enter Select the Volume Level by using the 2´3 buttonsPress the Multi Room & Source button Using the front panel with the MULTI-ROOM systemPress the Control button DVD/LD TV/SAT CD VCR 1 Tuner MD/TAPEPress Volume +/- to adjust the volume Using the remote control with the MULTI-ROOM systemClass Receiver Station +Control Dolby Digital Techno Tidbits & Problem-solvingLaser disc format Comparison with Dolby Pro Logic SurroundDTS Dolby DigitalDolby Pro Logic SurroundDevice Preset Code ListDevice Manufacturer Code Symptom Cause Remedy TroubleshootingFM broadcasts AM broadcastsSymptomCause Specifications 0 4 2 1 1 4 0 99E00ZF0P00 EIA

VSX-D908S specifications

The Pioneer VSX-D908S is a remarkable home theater receiver that epitomizes the blend of advanced technology and user-friendly design. Launched in the early 2000s, this versatile component remains a popular choice for audio enthusiasts seeking to enhance their home entertainment experience.

One of the standout features of the VSX-D908S is its powerful amplification system, capable of delivering up to 100 watts per channel across five channels. This ensures that users can enjoy dynamic sound reproduction, even with demanding audio tracks or during intense movie scenes. The receiver supports both Dolby Digital and DTS surround formats, making it an ideal choice for those looking to immerse themselves in a cinematic experience at home.

The VSX-D908S also boasts multiple inputs and outputs, allowing users to connect a variety of audio and video sources. With several composite, S-video, and component video inputs, it accommodates a range of devices, from DVD players to gaming consoles. Furthermore, the receiver features a built-in AM/FM tuner and supports the playback of music CDs, making it a comprehensive solution for all entertainment needs.

Another notable characteristic is the advanced DSP (Digital Signal Processing) technology that the VSX-D908S incorporates. This technology allows for the simulation of different acoustic environments, enabling the user to customize their listening experience according to their preferences. With multiple preset sound fields, including options for concert halls and theaters, the receiver adapts to various audio situations seamlessly.

For those who value ease of use, the VSX-D908S includes a user-friendly interface and remote control. The intuitive layout of the front panel makes it simple to navigate settings, adjust volumes, and switch between sources. The inclusion of a multi-language on-screen display further enhances the user experience, catering to a broader audience.

In addition to its impressive audio capabilities, the Pioneer VSX-D908S also emphasizes build quality, featuring solid construction and reliability. With its robust design, users can expect long-term performance without compromising on sound quality.

Overall, the Pioneer VSX-D908S stands out as a home theater receiver that harmonizes performance, versatility, and user-friendliness. It continues to be a solid option for anyone seeking to elevate their audio-visual setup, making it a notable piece of equipment in the world of home entertainment.
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