GLOSSARY

Audio formats

Dolby Digital

Dolby Digital is a digital surround sound system that gives you completely independent multi-channel audio. With 3 front channels (left, center, and right), and 2 surround stereo channels, Dolby Digital provides 5 full-range audio channels. With an additional channel especially for bass effects, called LFE (low frequency effect), the system has a total of 5.1-channels (LFE is counted as 0.1 channel). By using 2-channel stereo for the surround speakers, more accurate moving sound effects and surround sound environment are possible than with Dolby Surround. The wide dynamic range (from maximum to minimum volume) reproduced by the 5 full-range channels and the precise sound orientation generated using digital sound processing provide listeners with previously unheard of excitement and realism.

With this unit, any sound environment from monaural up to a 5.1-channel configuration can be freely selected for your enjoyment.

Dolby Digital EX

Dolby Digital EX creates 6 full-bandwidth output channels from 5.1-channel sources. This is done using a matrix decoder that derives 3 surround channels from the 2 in the original recording. For the best results, Dolby Digital EX should be used with movie sound tracks recorded with Dolby Digital Surround EX. With this additional channel, you can experience more dynamic and realistic moving sound especially with scenes with “flyover” and “fly-around” effects.

Dolby Pro Logic II

Dolby Pro Logic II is an improved technique used to decode vast numbers of existing Dolby Surround software. This new technology enables a discrete 5-channel playback with 2 front left and right channels, 1 center channel, and 2 surround left and right channels (instead of only 1 surround channel for conventional Pro Logic technology). Music and Game modes are also available for 2-channel sources in addition to the Movie mode.

Dolby Pro Logic IIx

Dolby Pro Logic IIx is a new technology enabling discrete multi-channel playback from 2-channel or multi-channel sources. There is a Music mode for music, a Movie mode for movies and a Game mode for games.

Dolby Surround

Dolby Surround uses a 4 channel analog recording system to reproduce realistic and dynamic sound effects: 2 front left and right channels (stereo), a center channel for dialog (monaural), and a surround channel for special sound effects (monaural). The surround channel reproduces sound within a narrow frequency range.

Dolby Surround is widely used with nearly all video tapes and laser discs, and in many TV and cable broadcasts as well. The Dolby Pro Logic decoder built into this unit employs a digital signal processing system that automatically stabilizes the volume on each channel to enhance moving sound effects and directionality.

DTS 96/24

DTS 96/24 offers an unprecedented level of audio quality for multi-channel sound on DVD-Video, and is fully backward-compatible with all DTS decoders. “96” refers to a 96 kHz sampling rate (compared to the typical 48 kHz sampling rate). “24” refers to 24-bit word length. DTS 96/ 24 offers sound quality transparent to the original 96/24 master, and 96/24 5.1-channel sound with full-quality full- motion video for music programs and motion picture soundtracks on DVD-video.

DTS (Digital Theater Systems)

Digital Surround

DTS digital surround was developed to replace the analog soundtracks of movies with a 6-channel digital sound track, and is now rapidly gaining popularity in movie theaters around the world. Digital Theater Systems Inc. has developed a home theater system so that you can enjoy the depth of sound and natural spatial representation of DTS digital surround in your home. This system produces practically distortion-free 6-channel sound (technically, a left, right and center channels, 2 surround channels, plus an LFE 0.1 channel as a subwoofer, for a total of 5.1- channels). The unit incorporates DTS-ES decoder that enables 6.1-channel reproduction by adding the surround back channel to existing 5.1-channel format.

Neo:6

Neo:6 decodes the conventional 2-channel sources for 6 channel playback by the specific decoder. It enables playback with the full-range channels with higher separation just like digital discrete signal playback. Two modes are available: “Music mode” for playing music sources and “Cinema mode” for movies.

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Yamaha DSP-AX757SE owner manual Glossary, Audio formats

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.