... Radio Designer’s Handbook, (Chapter 14 Fidelity and Distortion) Illiffe (1954) Parkin, P.H and Humphries, H .R., Acoustics, Noise and Buildings Faber and Faber, London (1971) Rumsey, F and McCormick, ... P.H and Humphries, H .R., Acoustics, Noise and Buildings, Faber and Faber, London (1971) chp1.ian 4/6/98 4:55 PM Page 13 Sound Waves 13 Rettinger, M., Handbook of Architectural Acoustics and ... and are being employed more and more for stage and televisions shows, and other applications where complete freedom of movement is demanded The radio microphone itself is usually very small and...