Multichannel surround sound

Multichannel surround sound is a method of enriching the sound processing high quality of any audio source with additional audio channels from audio speakers that surround the listener (surround channels), providing sound with a 360 radius in the horizontal plane (2D) as an alternative to "screen channels" (center, [front] left, and [front] right) originating only within the listener's frontward arc.

Surround sound is portrayed by a listener location or sweet spot where the audio effects work most effectively, and provides a fixed or forward perspective of the sound area towards the listener as of this location. The procedure improves the belief of sound spatialization by manipulating sound localization; a listener's ability to get the location or origin of a detected sound in direction and range. Typically this is achieved by means of multiple discrete audio channels routed to an array of loudspeakers.

There are lots of multichannel audio based formats and methods, varying in processing and recording tactics combined with the number and placement of additional channels.

Areas of application

Though cinema and soundtracks characterize the primary uses of surround approaches, its scope of use is expansive than that as multichannel audio permits creation of an audio-environment for all variations of purposes. Multichannel techniques may be used to recreate contents as various as music, speech, natural or synthetic sounds for cinema, television, transmissions, or portable computers. Concerning music content for example, a live performance may also use multichannel techniques in the context connected with an open-air event, of a musical theatre or even for broadcasting; for a film particular techniques are adjusted to cinema, or even to residence (e.g. home cinema systems).

The narrative space is also a content which could be improved upon through multichannel techniques. This applies mainly to cinema narratives, much like the speech from the characters of a film, but will even be applied to plays for theatre, to a seminar, or to integrate voice-based comments in an archeological site or monument. To provide an example, an exhibition may perhaps be enhanced with topical background sound of water, wild birds, train or equipment noises. Applicable natural sounds can also be used in educative programs.

- Additional fields of application contain gaming controllers, computers along with other platforms.

In this purposes, the material would typically be fabricated noise made by the computer unit in interaction with its user. Significant work has been specifically done using surround sound for enhanced situation awareness in government and public safety purposes.

BNW Acoustics SR-44

Rumble
A low-frequency noise, especially that caused by earth/floor vibration or by uneven surfaces in the drive mechanism of a recorder or playback unit.

BNW Acoustics Reviews Speaker
1) A device that changes electrical signals to sound which can be heard; a transducer changing the electrical audio signal into a sound pressure wave.
2) The part of the system that physically produces the sound.

BNW Acoustics RS-9 Submaster Assignment (Sub-Master Assignment)
The choosing of what buss (and therefore what sub-master) the console channel will feed to; usually accomplished by pressing a button in the Switch Matrix.

BNW Acoustics TR-4 Polyphonic
Able to play more than one pitch at the same time, in synthesizers.