Defines the methods for measurement of overall characteristics of the FM audio, recorded using slanted tracks similar to those used for recording video information, and covers two channels, high fidelity and companders for noise reduction.
BS EN 61041-3:1994 history
1994BS EN 61041-3:1995 Non-broadcast video tape recorders. Methods of measurement. Audio characteristics for FM recording
1994BS EN 61041-3:1994 Non-broadcast video tape recorders - Methods of measurement - Audio characteristics for FM recording