Fix the smartphone to the dummy head for audio quality measurement.
HHP III.2 is a handset positioner designed to position the handset at the specified ear location of the HMS II series dummy head. It is equipped with a jig to secure the handset. Using adjustment screws, the handset can be set at various positions near the auricle or in contact with the auricle. HHP III.2 supports the standard test position (STP) based on ITU-T Recommendation P.64 and the recommended test positions (RTP) specified in IEEE 269 and ITU-T Recommendation P.64. Additionally, it is also possible to adjust the pressing force from the handset to the auricle of the dummy head.
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basic information
Fixing the handset to the dummy head's ears of the HMS II series Positioning of the handset based on the coordinate system of ITU-T Recommendation P.64 ACQUA automatically records the pressing force of the handset against the pseudo ear.
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Applications/Examples of results
Dummy Head HMS II.3, HMS II.3 LN, HMS II.3 LN HEC, HMS II.3 ViBRIDGE, HMS II.4, HMS II.5 and optimal system upgrades Reproducible voice quality tests: › Smartphone (with or without display speaker) › Cordless phone › Communication device with handset › Tablet Performance analysis related to position Analysis of the impact of user movement on voice quality in near-end and far-end signal transmission of the test devices.
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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.
