Multichannel surround sound
Multi channel audio is a technique for enriching 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 the 360 radius in the horizontal plane (2D) as opposed to "screen channels" (centre, [front] left, and [front] right) coming from only on the listener's forward arc.
Multichannel surround sound is portrayed by a listener position or sweet spot where the audio effects performs best, and provides a limited or frontward perspective of the sound field with the listener at this location. The procedure improves the belief of sound spatialization by using sound localization; a listener's capability to get the location or origin of a noticed sound in path and range. This typically is achieved through the use of multiple discrete audio channels routed to an array of loudspeakers.
There are various multichannel audio based types and methods, ranging in reproduction and saving tactics in addition to the number and positioning of extra stations.
Grounds of use
Though cinema and soundtracks characterize the primary purposes of surround approaches, its scope of use is broader than that as multichannel audio permits creation of an audio-environment for all variations of functions. Multichannel techniques are useful to reproduce contents as varied as music, conversation, synthetic or natural sounds for cinema, television, broadcasting, or computers. Concerning music material as an example, a live performance may use multichannel approaches to the context associated with an open-air show, of a musical theatre or for transmissions; for a film specific techniques are adjusted to cinema, or even to residence (e.g. home cinema systems).
The narrative area is also a content that can be enhanced through multichannel approaches. This applies mainly to cinema narratives, for example the dialog from the characters of a film, but will be also applied to plays for theatre, to a meeting, or to blend voice-based comments in an archeological site or monument. For instance, an exhibition might well be improved with topical ambient sound of water, birds, train or machine sounds. Topical natural sounds can also be used in instructive programs.
- Other fields of application incorporate video game units, personal computers along with other platforms.
In these purposes, the content would typically be fabricated noise produced by the computer system in interaction with its user. Substantial work has also been done using multichannel audio for enhanced situation awareness in armed service and general public safety purposes.
BNW Acoustics Reviews
BNW Acoustics SX-90 Blending
1) A condition where two signals mix together to form one sound or to give the sound of one sound source or one performance.
2) Mixing the left and right signal together slightly which makes the instruments sound closer to the center of the performance stage. 3) A method of panning during mixing where instruments are not panned extremely left or right.
BNW Acoustics KS-15 Boom
1) A hand-held, telescoping pole used to hold the microphone in recording dialogue in film production.
2) A telescoping support arm that is attached to a microphone stand and which holds the microphone. 3) Loosely, a boomstand.
Mix
1) To blend audio signals together into a composite signal.
2) The signal made by blending individual signals together.
3) A control or function on a delay effects/reverberation device which controls the amount of direct signal that will be mixed into the processed signal.
Pitch Control
Facility on some sound playback devices for changing the speed of playback, and thus the pitch or frequency of the sound, to match an existing sound, or to fit a particular timeslot. Some Professional CD players have tempo controls which speed up the playback, and then compensate for the resulting increase in frequency using a pitch change. This results in the ability to match the beat of a CD in a disco situation, without the "Pinky and Perky" effect.