BS 6840-13 discusses sound system equipment with a focus on listening tests on loudspeakers.
BS 6840-13 is the 13th part of the BS 6840 multi-series on sound system equipment that applies to loudspeakers intended for residential systems and environments. Although the procedures are specifically designed for loudspeakers which are separate sound system components for either monophonic, two-channel stereophonic, or multichannel stereophonic reproduction, they may also be applied to other devices such as complete audio and television receivers with integrated sound.
BS 6840-13 gives recommendations for establishing, conducting, and evaluating listening tests on loudspeakers. Although various aspects are under continuing discussion, BS 6840-13 is intended to give the general guidelines.
BS 6840-13 on listening tests on loudspeakers is useful for:
The power amplifiers should be of high quality with respect to signal-to-noise ratio, distortion, and amplitude response linearity. The output power capability should be sufficient for driving all test loudspeakers at the highest sound pressure level encountered in the programme material without clipping.
BS 6840-13 describes experimental procedures, including recommendations on the choice of programme material and the processing and presentation of the final data. It may be useful, when applying the methods of this publication, to also consider some of the recommendations, especially as concerns the range of perceptual attributes.
IEC 60268-13:1998