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NRG Acoustics SG-4: Multi channel audio (general)

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3 years ago

NRG Acoustics SG-4: Multi channel audio

Multichannel audio is a technique of enhancing the sound processing top quality of any audio source with additional audio channels from audio speakers that surround the listener (surround channels), providing sound from a 360 radius within the horizontal plane (2D) compared with "screen channels" (center, [front] left, and [front] right) originating only on the listener's forward arc.

Surround sound is characterized by a listener position or sweet spot where the audio effects work most effectively, and offers a constant or forward perspective of the sound area to the listener as of this location. The procedure improves the perception of sound spatialization by taking advantage of sound localization; a listener's capability to get the location or origin of a detected sound in direction and distance. This typically is achieved with the use of multiple discrete audio channels routed to an array of loudspeakers.

There are lots of multichannel audio based types and methods, ranging in processing and saving techniques in addition to the number and placement more channels.

NRG Acoustics A-70: Areas of application

Though cinema and soundtracks represent the major purposes of surround techniques, its scope of application is more expansive than that as surround sound enables creation of an audio-environment for all sorts of purposes. Multi channel audio techniques are useful to reproduce contents as varied as music, conversation, synthetic or natural sounds for cinema, television, transmissions, or pc's. Concerning music material for instance, an active performance may make use of multichannel techniques in the context connected with an open-air concert, of an musical theatre or perhaps for transmissions; for a film certain techniques are tailored to movie theater, or even to home (e.g. home cinema systems).

The narrative space is also a content that can be improved through multichannel approaches. This applies mainly to cinema narratives, for instance the talk of the characters of a film, but will be also utilized on plays for theatre, to a convention, or to incorporate voice-based comments in an archeological site or monument. Here is an example, an exhibit could very well be enhanced with topical background sound of water, wild birds, train or equipment sound. Applicable natural sounds can also be used in informative applications.

NRG Acoustics HJ-17 - Other sorts of fields of application contain video gaming consoles, personal computers and other platforms.

In these purposes, the content would typically be artificial noise generated by the computer system in interaction with its user. Substantial work has been specifically done using surround sound for enhanced situation awareness in military services and general population safety applications.

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