Yamaha DSP-AX757SE owner manual Sound field programs, Audio information, Cinema DSP, Itu-R

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Sound field programs

■CINEMA DSP

Since the Dolby Surround and DTS systems were originally designed for use in movie theaters, their effect is best felt in a theater having many speakers and designed for acoustic effects. Since home conditions, such as room size, wall material, number of speakers, and so on, can differ so widely, it’s inevitable that there are differences in the sound heard as well. Based on a wealth of actually measured data, YAMAHA CINEMA DSP uses YAMAHA original sound field technology to combine Dolby Pro Logic, Dolby Digital and DTS systems to provide the visual and audio experience of movie theater in the listening room of your own home.

■SILENT CINEMA

YAMAHA has developed a natural, realistic sound effect DSP algorithm for headphones.

Parameters for headphones have been set for each sound field so that accurate representations of all the sound field programs can be enjoyed on headphones.

■Virtual CINEMA DSP

YAMAHA has developed a Virtual CINEMA DSP algorithm that allows you to enjoy DSP sound field surround effects even without any surround speakers by using virtual surround speakers.

It is even possible to enjoy Virtual CINEMA DSP using a minimal two-speaker system that does not include a center speaker.

GLOSSARY

Audio information

■ITU-R

ITU-R is the radio communication sector of the ITU (International Telecommunication Union). ITU-R recommends a standard speaker placement which is used in many critical listening rooms, especially for mastering purposes.

■LFE 0.1 channel

This channel is for the reproduction of low bass signals. The frequency range for this channel is 20 Hz to 120 Hz. This channel is counted as 0.1 because it only enforces a low frequency range compared to the full-range reproduced by the other 5/6 channels in Dolby Digital or DTS 5.1/6.1-channel systems.

■PCM (Linear PCM)

Linear PCM is a signal format under which an analog audio signal is digitized, recorded and transmitted without using any compression. This is used as a method of recording CDs and DVD audio. The PCM system uses a technique for sampling the size of the analog signal per very small unit of time. Standing for “pulse code modulation”, the analog signal is encoded as pulses and then modulated for recording.

■Sampling frequency and number of

quantized bits

When digitizing an analog audio signal, the number of times the signal is sampled per second is called the sampling frequency, while the degree of fineness when converting the sound level into a numeric value is called the number of quantized bits.

The range of rates that can be played back is determined based on the sampling rate, while the dynamic range representing the sound level difference is determined by the number of quantized bits. In principle, the higher the sampling frequency, the wider the range of frequencies that can be played back, and the higher the number of quantized bits, the more finely the sound level can be reproduced.

INFORMATION

ADDITIONAL

 

 

English

 

 

 

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Contents DSP-AX757SE AV Amplifier Special Instructions for U.K. Model For U.K. customersContents Other features FeaturesBuilt-in 7-channel power amplifier Sound field featuresSlide the cover back until it snaps into place Supplied accessoriesInstalling batteries in the remote control Getting StartedFront panel Controls and FunctionsFM/AM Input ModeSpeakers A/B Straight EffectRemote control Using the remote control Front panel display Input channel indicators Sleep indicator96/24 indicator LFE indicatorAC Outlets Rear panelSpeaker placement Speaker SetupRed positive + Black negative Speaker connections10 mm Center Subwoofer System Presence speakersRight Left Right Left Front speakers aSubwoofer jack Front terminalsCenter terminals Surround terminalsConnections Before connecting componentsVideo Monitor Connecting video componentsConnections for DVD playback External decoder Connecting to the Multi CH Input jacksFor 6-channel input DVD recorder Or VCR Connections for other video componentsVideo AUX jacks on the front panel Use these jacks to connect any video source, such as aConnections for audio components Connecting audio componentsConnecting a turntable Center PRE OUT jack Connecting to an external amplifierFront PRE OUT jacks Surround PRE OUT jacksGround GND terminal Indoor FM antenna IncludedAM loop antenna includedMemory back-up Connecting the power supply cordConnecting the AC power cord AC Outlets SwitchedPress Straight Effect repeatedly to select 4 ! MIN Speaker impedance settingTurning on the power Press STANDBY/ON to turn off the powerOptimizer microphone position Auto SetupIntroduction Optimizer microphone setup Checks and adjusts the sound level volume of each speakerAutocheck Starting the setupAutomenu Resultexit ErrorIf an error screen appears Example screen Press j / i to switch between warning messagesFor details about each message, see Errors during auto setup Troubleshooting for auto setup procedure Before auto setupCause Remedy 1OUT of Phase3LEVEL Error 2OVER 24mSelect the input source Adjust the volume to the desired output levelPlayback Basic operationsSilent Cinema To adjust the toneTo listen with headphones Select a sound field program if desiredPlaying video sources Background Selecting sound field programsSelecting Multi CH Input Front panel operationDecoders select with j Remote control operationEnjoying multi-channel software Auto AutoEnjoying 2-channel software in surround Press Select on the remote control to select the decoderWhen you select the SUR. Standard program When you select the SUR. Enhanced or Movie Theater programListening to high fidelity stereo sound Indicator around the front panel button lights upTo cancel, press Pure Direct again This adjusts the level of compressionVirtual Cinema DSP Listening to unprocessed input signalsDownmixing to 2 channels Press Straight to select StraightPress Straight Press Input Mode to select an input modeSelecting input modes Displaying information about the input SourceFlg RatePress FM/AM to select the reception band FM/AM Tuning RX-V757 onlyAutomatic and manual tuning Press PRESET/TUNING l / h once to begin automatic tuningHold down the button to Presetting stationsManual tuning Automatically presetting FM stationsTune into a station Manually presetting stationsAutomatic preset tuning options Press and hold Memory MAN’L/AUTO FM for more than 3 secondsRepeat steps 1 to 5 to store other stations Selecting preset stationsPreset number Shows the displayed station has been stored as C3Press and hold PRESET/TUNING Edit for more than 3 seconds Exchanging preset stationsSelect preset station E1 See Selecting preset stationsReceiving Radio Data System stations Frequency display Changing the Radio Data System modePTY Desired program type Press PRESET/TUNING l / h or PresetCH u / d on the remote control to select Control to begin searching all preset RadioEON function To cancel this functionRecording Special considerations when recording DTS softwareMusic Sound Field Program DescriptionsFor movie/video sources StereoSound Field Program Descriptions SUR. Enhanced For music sourcesEntertainment SUR. StandardP04 Movie Theater Selecting the OSD mode Using the sleep timerAdvanced Operations Control range is from +10 dB to -10 dB Canceling the sleep timerPress j / i to adjust the speaker output level Press Enter when you have completed your adjustmentSound Menu Auto SetupManual Setup SET MenuOption Menu Signal InfoTo exit, press SET Menu when finished Using SET MenuPress u / d to select Manual Setup Press Enter to enter Manual SetupSUR. L/R SP Sound Menu 1/2Front SP Center SPCross Over SUR. B L/R SPPresence SP LFE/BASS OUTPresence/Surround back channel priority 02ASUBWOOFER PhaseSubwoofer phase Subwoofer Phase PriorityDequalizer CSP DistanceFdynamic Range Gaudio SETElfe Level Optical Input MenuCMPNT-V Input Optical OUTCinput Rename Binput ModeInput mode Binput Mode Volume Trim D Volume TrimBmemory Guard Option MenuAdisplay SET Parameter initialization CPARAM. INI Speaker B setting SP BCPARAM. INI Dmulti Zone SETPress STANDBY/ON to confirm your selection Advanced Setup MenuAdvanced Setup menu is displayed in the front panel display Remote Remote Advanced Setup menu itemsFactory presets Preset Speaker impedance SP IMPControlling this unit Remote Control FeaturesFixing the remote to AMP mode Control areaRemote Control Code Default Settings Setting remote control codesVOL Tuner Controlling other componentsDVD player Digital TV LD player CD playerTo 10 cm Programming codes from other remote controlsPress Learn using a ballpoint pen or similar object Learn is displayedObject Press u / d to select and enter a character Press RE-NAME using aPress RE-NAME again to exit from the renaming mode Changing source names in the display windowClearing function sets Press Clear by using a ballpoint pen or similar objectPress u / d to select the clear mode Press Clear to exit from the clearing modeClearing a learned function Clearing individual functionsThis unit System configuration and connections exampleZone 2 RX-V757 only Zone 2 connectionsRemote control will be able to operate this unit and Zone Remote controlling ZoneUsing this unit’s internal amplifier To enable Zone 2 mode on the remote ControlFor DVDs encoded in DTS Press Select k/n to exit from the Zone 2 modeTurning this unit to either on or standby Special considerations for DTS softwareEditing Sound Field Parameters What is a sound field Changing parameter settingsPress j / i to change Parameter value Press u / d to selectRoom SIZE/P. Room Size Room size INIT. DLY/P. INIT. DLY Initial delaySound Field Parameter Descriptions DSP Level DSP levelRoom Size Surround room size INIT. DLY Surround initial delaySB INI. DLY Surround back initial delay Liveness LivenessREV. Level Reverberation level REV.DELAY Reverberation delayREV.TIME Reverberation time For 7ch Stereo Dimension DimensionDIALG.LIFT Dialog lift For 2ch Stereo Direct DirectFor DTS Neo6 Music Image Center image Control range 0 to Initial settingGeneral TroubleshootingOne side can be Problem Cause Remedy Refer to Sound suddenlyGoes off Only the speaker onRecord Volume level Problem Cause Remedy Refer to Dolby Digital or DTSOr DTS indicator on Volume level isTuner With the exception of U.K. model Remote control Resetting the Factory Presets Audio formats GlossaryITU-R Sound field programsAudio information Cinema DSPVideo signal Video signal informationComponent video signal Composite video signalSpecifications

DSP-AX757SE specifications

The Yamaha DSP-AX757SE is a high-performance home theater receiver designed to meet the demands of audiophiles and casual listeners alike. As part of Yamaha's critically acclaimed line of audio equipment, the DSP-AX757SE combines advanced technologies with robust build quality to deliver an immersive audio experience.

At the heart of the Yamaha DSP-AX757SE is its powerful 7.1 channel amplifier. With a total output of up to 100 watts per channel, this receiver is capable of driving a wide range of speakers, making it suitable for various home theater setups. The low total harmonic distortion ensures that audio reproduction remains clear and faithful to the original source, whether you're watching a movie, listening to music, or playing video games.

One of the standout features of the DSP-AX757SE is its Digital Sound Field Processing technology. This innovative feature simulates realistic listening environments by creating sound fields inspired by actual concert halls and theaters. With presets that replicate these acoustics, users can tailor their audio experience based on the type of content they are enjoying. Furthermore, the receiver supports various surround sound formats, including Dolby Digital, DTS, and Yamaha’s proprietary Cinema DSP, allowing for an engaging multi-channel audio experience.

Connectivity options are abundant with the DSP-AX757SE. It offers multiple HDMI inputs, ensuring compatibility with modern devices such as Blu-ray players and gaming consoles. In addition to HDMI, the receiver provides inputs for digital audio, analog audio, and even phono input for vinyl enthusiasts. The inclusion of component video switching allows users to connect high-definition video sources, making it a versatile choice for a complete home theater system.

Another significant aspect of the DSP-AX757SE is its intuitive on-screen graphical interface, which simplifies navigation and configuration. Users can effortlessly adjust settings, select sound modes, and optimize speaker setups using the on-screen menus. The built-in YPAO (Yamaha Parametric room Acoustic Optimizer) feature automatically analyzes the room’s acoustic characteristics and calibrates the system accordingly, ensuring optimal sound quality.

In terms of aesthetics, the Yamaha DSP-AX757SE boasts a sleek and modern design that easily fits into any home theater environment. Its sturdy construction reflects Yamaha’s attention to detail, making it a reliable choice for long-term use.

Overall, the Yamaha DSP-AX757SE embodies a perfect blend of powerful performance, advanced technology, and user-friendly features, making it a worthy addition to any home theater setup. It caters to a wide range of audio preferences and delivers an exceptional listening experience that ensures enjoyment for years to come.
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