This is a test of devices equipped with an analog interface for analog headsets/headphones (3.5 mm jack, TRS, TRRS).
P.381-3 The terminal is a productized ACQUA standard that conforms to ITU-T Recommendations P.381 / P.382 / P.383 for measurement methods and requirements of terminals. The ACQUA standard provides comprehensive testing for terminal manufacturers and network operators to evaluate the signal and voice quality of terminals such as mobile phones through analog or digital interfaces (wired/wireless). It supports various connection types, including analog (TRRS), digital wired (USB), and digital wireless (Bluetooth technology).
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basic information
Testing of devices with analog headset/headphone interfaces (3.5 mm jack, TRS, TRRS) Testing of devices with digital interfaces for headsets: › Bluetooth wireless technology › USB Full frequency range testing: narrowband, wideband, super wideband, fullband Audio and voice call quality testing
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Automatic testing of terminals equipped with analog interfaces compliant with ITU-T Recommendations P.381/P.382/P.383 (03/2023) and terminals equipped with digital interfaces (wired/wireless).
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Company information
HEAD acoustics Japan Co., Ltd. has been active as a leading company in the fields of dummy head-related recording and playback systems, acoustic analysis based on human auditory characteristics, and communication measurement technology for over 25 years. HEAD acoustics has consistently been a pioneer in developing innovative technologies such as dummy head-related binaural technology, acoustic analysis related to human hearing, interactive sound simulation systems, and transmission path analysis. HEAD acoustics will continue to focus on research and development through collaboration with universities and other research institutions and participation in international research projects.