Year: 2021

  • 21
    Sep

    Church Sound Systems – how to get it right

    Why Churches Buy Three Sound Systems, and How You Can Buy Only One. There’s a saying among the better sound contractors that they want to sell a church their LAST sound system. That’s because, strange as it seems, most churches are so afraid of buying sound systems that they...

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  • 21
    Sep

    The Role of an Acoustic consultant

    The Role of an Acoustic Consultant (Part 2) An acoustic consultant is an expert who you hire to design your church’s acoustics and your sound system. Some consultants specialize in acoustics, while others specialize in sound system design. Many of the larger firms have people who do both. A...

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  • 21
    Sep

    Finding a Good Acoustic Consultant

    Finding A Good Consultant  (Part 3).   How does a church find a good consultant? Strange as it may seem, there are no good lists of consultants qualified to design sound systems for churches. There are professional societies, but they include many who specialize in completely unrelated areas of...

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  • 16
    Sep

    Acoustic Terms

    Disturbance. A general acoustic term describing a parameter in some system that is time varying.  We could say the angular displacement of a pendulum is a form of disturbance, as is the acceleration of a vibrating floor. Frequency. Frequency is a measure of the number of occurrences of a...

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  • 16
    Sep

    Understanding NRC Values

    Noise Reduction Coefficient or NRC is single number value ranging from 0 to 1.  This number describes the average absorption value of an acoustic material and in no way does it relate to noise control.  The naming is ambiguous and is more accurately described as a Sound Absorption Average...

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  • 16
    Sep

    3Ci Church

    Creating a truly special place for praise and worship had long been the dream of the passionate team at Capital City Church International (3Ci) based in Pretoria, South Africa.  This dream became a reality in 2020/21.   From the inception, the design team at 3Ci instinctively knew that acoustics...

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  • 14
    Sep

    Durban Playhouse

    Upgrade to the recording studios at the Durban Playhouse. CONSULTATION  The original music studio’s were built back in the early 1980’s at sub basement levels -2 and -3 ( below sea level) in the Playhouse Theatre Complex, Durban, KwaZulu Natal.  The studios walls were covered in old hessian behind which...

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  • 13
    Sep

    Noise Disturbance

    The Bylaws pertaining to Noise Disturbance in South Africa may vary between Municipalities and Provinces.  Below is the Bylaws for Ethekweni Municipality, KZN, South Africa. Noise levels at night time should not exceed Outdoors – Night Time – Lreq, n 50dBA Indoors, with open windows – Night Time –...

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  • 13
    Sep

    Noise in our daily lives

    A few examples of A-weighted sound pressure levels that we encounter as noise in our daily lives.   140 dB(A)       Threshold of Pain. 120 dB(A)       Jet Aircraft at 100m. 110 dB(A)        Inside a very noisy factory. 100 dB(A)    ...

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