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this method for the measurement of battery duration can be applied under the condition of powered loudspeaker playback only
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and the Japan Post Production Association's BWF-J [15]
US National Adoption of Portable multimedia equipment - Determination of battery duration - Part 1: Powered loudspeaker equipment IEC 63296-1:2021 (ANSI/CTA-6008)
Assistive Listening Devices and Systems for Active Assisted Living - Part 1 Audio and Video this method for the measurementUS National Adoption of Assistive listening devices and systems for active assisted living Part 1: General IEC 63087 1: 2021 (ANSI CTA 6020) This is the US National Adoption of Assistive listening devices and systems for active assisted living Part 1: General IEC 63087 1: 2021. IEC 63087 1: 2021 specifies requirements, and the associated methods of measurement, for the electroacoustic performance of personal listening systems. This document specifies
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