Wireless wearable (watch-type) terminal voice transmission test in accordance with ETSI TS 103 334 and ETSI TS 103 607.
The test specifications defined by ETSI TS 103 334 and ETSI TS 103 607 have been commercialized as the ACQUA standard specifications TS 103 334/607. This ACQUA standard specification is a comprehensive test for manufacturers to evaluate the signal and audio quality of wireless wearable (watch-type) terminals. This standard supports multiple access networks for connecting to wireless devices such as packet/circuit-switched mobile networks and Bluetooth wireless technology.
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basic information
ACQUA standard specifications fully realized as follows: › ETSI TS 103 334 (2018-01) – Voice and multimedia transmission quality (STQ); Transmission requirements for wearable wireless terminals from the QoS perspective as perceived by users. › ETSI TS 103 607 (2024-07) – Voice and multimedia transmission quality (STQ); Transmission requirements for wearable wireless wideband voice terminals from the QoS perspective as perceived by users. Automatic and repeatable test sequences Automatic evaluation of nominal volume Automatic measurements with echo path variations using HRR I (HEAD acoustics rotating reflector) Narrowband and wideband measurements and requirements
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Applications/Examples of results
Performance in a Background Noise Environment The wireless wearable device is attached to a dummy arm and connected to labCORE via Bluetooth. labCORE sends playback audio signals to HMS II.3 and receives recorded signals from the wireless wearable device through Bluetooth. ACQUA generates playback signals and analyzes the recorded signals. To evaluate the performance of the device in a background noise environment, 3PASSlab plays back background noise, and ACQUA assesses the voice signal processing of the wireless wearable device in compliance with the requirements of ETSI TS 103 607.
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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.