NRG Acoustics A-70: Multichannel surround sound

NRG Acoustics A-70: Multichannel surround sound

Multichannel audio is a method of enhancing the sound processing high quality of any audio source with additional audio channels from speakers that surround the listener (surround channels), providing sound from the 360 radius in the horizontal plane (2D) contrary to "screen channels" (middle, [front] left, and [front] right) coming from only within the listener's forward arc.

Multichannel audio is portrayed by a listener location or sweet spot where audio effects performs best, and provides a set or frontward perspective of the sound field towards listener at this location. The technique enhances the perception of sound spatialization by taking advantage of sound localization; a listener's ability to get the location or origin of a noticed sound in route and distance. Typically this is achieved by making use of multiple discrete audio channels routed to an array of loudspeakers.

There are various surround sound based types and techniques, ranging in processing and saving tactics together with the amount and positioning more channels.


NRG Acoustics HJ-17: Areas of application

Though cinema and soundtracks signify the primary uses of surround techniques, its scope of application is more expansive than that as multichannel surround sound permits creation of an audio-environment for all variations of functions. Multichannel techniques are useful to recreate contents as various as music, conversation, natural or synthetic sounds for cinema, television, transmissions, or pc's. When it comes to music material as an illustration, an active performance is able to use multichannel approaches to the context associated with an open-air event, of an musical theatre or perhaps for broadcasting; for a film specific techniques are adjusted to movie theatre, or to home (e.g. home cinema systems).

The narrative area is also a content which could be improved through multichannel solutions. This is applicable mainly to cinema narratives, much like the talk of the characters of a film, but will be also used on plays for theatre, to a convention, or to integrate voice-based comments in an archeological site or monument. Here is an example, an exhibition may very well be improved with topical background sound of water, birds, train or equipment sound. Applicable natural sounds could also be used in educative applications.

NRG Acoustics SG-4 - Other fields of application include gaming controllers, computers and other platforms.

In such applications, the content would typically be synthetic noise maded by the computer device in interaction with its user. Significant work has also been done using multichannel surround sound for enhanced situation knowledge in government and public safety purposes.