samedi 6 décembre 2014

Abcs Of Church Sound System Design

By Claudine Hodges


The term soundengineer is a generic term that can applied to different businesses, with specific qualifications. The soundengineer has the function of managing sounds in different industries. A soundengineer registered or mixes sounds or music programs, through real or virtual machines: amps, preamps, compressors, EQs, effects, effects pedals (church sound system design).

The multiplicity of experiences (internships, assistantships event ...) is preferred and can complete an initial training. Studies on treatment / signal theory / Acoustic / music. The sounds systems consists of distribution of sounds signal in a large space with electroacoustic means. A microphone converts sounds into an electrical signal sources. It can replaced by a cell directly sensing the mechanical vibrations of certain instruments (guitar, cello, bass, etc.). Even if the source delivers an electrical signal, it may be necessary to use adapters between the signal delivered and the console needs. A DIbox allows symmetrical and adapt the electroacoustic impedance guitar signal.

Technologically similar to microphones used in studio, the microphones for sounds systems meet the different signals to recipient. The consoles have a concert dedicated to large number of entries provided for microphones, advanced EQ sections, a large number of auxiliary buses, especially for consoles dedicated to returns. DJ oriented consoles have little input - and most stereo, simple adjustments, a smaller footprint, and for a long correction "RIAA" for turntables. In Public Address, the console is reduced to a minimum and sometimes integrated directly into amplifier.

Sounds editor that seeks the best sounds (effects and atmospheres) can enrich soundstrack and adapt the script and narration of film. Sounds effects, recorded by a buzzer mounted by sounds editor. The film is the last post mixing operation is a sensitive time, sometimes painful for the director, one knows, with mixing, it is at the end of his creative process, faced with doubts and regrets, his work will be final (also colloquially compared to childbirth syndrome).

The former is common in Hi-Fi world. The second solution is preferred sounds as it allows greater flexibility (it is easier to correct the settings of an active filter, higher numerical reason that components a passive filter). But above all, the powers involved are the cost, weight and size of components of passive filter capable of supporting hundreds or thousands of watts would cause problems.

The first steps during hardware installation, are to choose the power and position of return distribution systems - those for musicians - and front - to public. If, in small configurations, the engineer may also hold the post of soundengineer and thus manage the mix, it is common in larger events, there is one or more engineers / soundengineers facade and one or more engineers / soundengineers in return for a faster response and better adapted to potential problems mentioned above.

He deals with the artistic part but knows how to disappear behind the composer. He works with the engineer to interface between artistic and technical aspects: what microphones to use, how to place them, what type of amplifier used, what equalization, what compression, etc.

The amplifiers increase the signal voltage and are capable of delivering at very low impedances. Technologically similar to what is found in Hi-Fi, they differ essentially in: the involved powers, of order of several hundreds to several thousands of watts; robustness; the extensiveness ofir internal protections (short circuit, overheating, DC, etc.) and their connection: screw terminals similar to Hi-Fi amplifiers leave gradually place Speakon.




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