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BSI BS EN IEC 60268-21:2018

Sound system equipment -- Acoustical (output-based) measurements
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BSI BS EN IEC 60268-21:2018

Sound system equipment -- Acoustical (output-based) measurements

PUBLISH DATE 2019
PAGES 84
BSI BS EN IEC 60268-21:2018

This part of IEC 60268 specifies an acoustical measurement method that applies to electroacoustical transducers and passive and active sound systems, such as loudspeakers, TV-sets, multi-media devices, personal portable audio devices, automotive sound systems and professional equipment. The device under test (DUT) can be comprised of electrical components performing analogue and digital signal processing prior to the passive actuators performing a transduction of the electrical input into an acoustical output signal. This document describes only physical measurements that assess the transfer behaviour of the DUT between an arbitrary analogue or digital input signal and the acoustical output at any point in the near and far field of the system. This includes operating the DUT in both the small and large signal domains. The influence of the acoustical boundary conditions of the target application (e.g. car interior) can also be considered in the physical evaluation of the sound system. This document does not assess the perception and cognitive evaluation of the reproduced sound and the impact of perceived sound quality.

NOTE Some measurement methods defined in this document can be applied to headphones, headsets, earphones and earsets in accordance with [1]1. This document does not apply to microphones and other sensors. This document does not require access to the state variables (voltage, current) at the electrical terminals of the transducer. Sensitivity, electric input power and other characteristics based on the electrical impedance will be described in a separate future standard document, IEC 60268-22, dedicated to electrical and mechanical measurements.

SDO BSI: British Standards Institution
Document Number IEC 60268-21
Publication Date Jan. 9, 2019
Language en - English
Page Count
Revision Level
Supercedes
Committee EPL/100
Publish Date Document Id Type View
Jan. 9, 2019 BS EN IEC 60268-21:2018 Revision