Sound field program information

Elements of a sound field

What really creates the rich, full tones of a live instrument are the multiple reflections from the walls of the room. In addition to making the sound live, these reflections enable us to tell where the player is situated as well as the size and shape of the room in which we are sitting.

There are two distinct types of sound reflections that combine to make up the sound field in addition to the direct sound coming straight to our ears from the player’s instrument.

Early reflections

Reflected sounds reach our ears extremely rapidly (50 ms to 100 ms after the direct sound), after reflecting from one surface only (for example, from a wall or the ceiling).

Early reflections actually add clarity to the direct sound.

Reverberations

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

Direct sound, early reflections and subsequent reverberations taken together help us to determine the subjective size and shape of the room, and it is this information that the digital sound field processor reproduces in order to create sound fields.

If you could create the appropriate early reflections and subsequent reverberations in your listening room, you would be able to create your own listening environment. The acoustics in your room could be changed to those of a concert hall, a dance floor, or a room with virtually any size at all. This ability to create sound fields at will is exactly what Yamaha has done with the digital sound field processor.

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 designed for acoustic effects. Since home conditions, such as room size, wall material, number of speakers, and so on, can differ so widely, it is inevitable that there are differences in the sound heard. 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 audiovisual experience of a 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.

Compressed Music Enhancer

The Compressed Music Enhancer feature of this unit enhances your listening experience by regenerating the missing harmonics in a compression artifact. As a result, flattened complexity due to the loss of high-frequency fidelity as well as lack of bass due to the loss of low- frequency bass is compensated, providing improved performance of the overall sound system.

INFORMATION

ADDITIONAL

 

 

English

109 En

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Yamaha DSP-AX863SE Sound field program information, 109 En, Elements of a sound field, Early reflections, Reverberations

DSP-AX863SE specifications

The Yamaha DSP-AX863SE is a high-performance AV receiver designed to deliver exceptional audio and video quality, making it an excellent choice for home theater enthusiasts. This model stands out with its robust amplifier section, which provides a powerful output of 110 watts per channel across seven discrete channels. This power ensures that all your favorite movies, music, and games come to life with remarkable clarity and depth.

One of the main features of the DSP-AX863SE is its advanced digital signal processing technology. Yamaha's reputation for innovation is apparent in the inclusion of their proprietary CINEMA DSP technology. This feature allows users to experience rich and immersive surround sound by emulating the acoustics of iconic concert halls and movie theaters. With a variety of preset sound fields to choose from, users can customize their listening experience according to the genre or mood.

The DSP-AX863SE also supports a wide range of audio formats, including Dolby Digital Plus, Dolby TrueHD, DTS-HD Master Audio, and more. This versatility enables users to play high-definition audio tracks with precision, enhancing the overall movie and music experience. Additionally, the receiver incorporates Yamaha's YPAO (Yamaha Parametric room Acoustic Optimizer) technology, which automatically calibrates the audio settings based on the specific characteristics of your room. This ensures that the sound quality is optimized, no matter where your speakers are placed.

In terms of connectivity, the Yamaha DSP-AX863SE is well-equipped to handle modern home entertainment systems. It features multiple HDMI inputs and outputs, along with component and composite video capabilities, allowing seamless integration with a wide variety of devices, including Blu-ray players, gaming consoles, and streaming devices. The receiver also includes built-in AM/FM radio tuners and supports various music streaming services, providing numerous options for audio playback.

The receiver's user-friendly interface is another highlight, featuring an on-screen display that makes navigating settings and configurations straightforward. Its remote control is designed for convenience, giving users access to all functions with ease.

Overall, the Yamaha DSP-AX863SE is a versatile and powerful AV receiver that combines advanced technology with user-friendly features to enhance home entertainment systems. Whether you're watching movies, listening to music, or gaming, this receiver promises to deliver exceptional sound quality and an immersive experience.