Studio Sound Insulation

A television studio should obviously be well insulated from external noise. Good sound insulation is very expensive, however, so there is little point in trying to reduce levels of noise picked up from outside the studio below the internally generated noise level (e.g. camera fan motors, ventilation, etc.). A realistic studio background noise, from noise entirely originating outside the studio, is probably in the region of 30 dBA (roughly 30 dB above the average ear’s hearing threshold, assuming appropriate frequency correction).

External noise

There are two types of externally-generated noise entering a studio. First, structure-borne sound is vibration conveyed through the fabric of the building, along water-pipes, ...

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