Sound system equipment, Methods for specifying and measuring the characteristics of artificial reverberation, time delay and frequency shift equipment— 16 стр.
Fire detection and fire alarm systems for buildings, Code of practice for the design, installation, commissioning and maintenance of emergency voice communication systems— 72 стр.
Fire detection and fire alarm systems for buildings, Code of practice for the design, installation, commissioning and maintenance of voice alarm systems— 98 стр.
Cinematography. 35 mm film. Sound, Specification for reproduction characteristics of the A-chain frequency response for 35 mm photographic sound— 10 стр.