Saturday, 31 October 2015

Sound



Public Address systems are made up of five elements : see video for ensemble. 

(Vid 2, Anonymous 2013)

Source (what is producing the sound)
Eg. Microphone

Monitor
Monitors enable musicians to hear the balance of sources and each can be adjusted to musician's preference.

Mixer & Amp
The mixer is used to balance vocals and instruments and send this information to the monitors. An amp amplifies the audio signals from speakers and is normally connected to the mixer .

An XLR cable is commonly used to connect equipment because it helps ‘deliver balanced microphone and line-level signals over long distances’ (Mack 2014). 

'Audio cables are particularly susceptible to electrical interference' (Palmer, 2000 p198). To avoid reduction of sound quality keep electric and audio wires as far apart as possible.

Speakers

Basic types of speaker:

The Full Range - This speaker 'Outputs sound across the complete range of hearing frequencies' (Coleman, 2014 p24)

The Bi Amp and The Tri Amp - These speakers  'require the frequencies fed individually from dedicated amplifiers' (Coleman, 2014 p24)

Normally located at front of house facing audience and/or musician. 


Technical Specifications should indicate what sound equipment is needed for the stage layout.

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