It is an advanced background noise simulation system that can record and reproduce realistic background noise in measurement rooms and vehicle interiors.
Devices and applications equipped with multiple microphones to capture human voices for cars, homes, and offices are becoming more common. To accurately test such systems under realistic conditions, advanced multi-point background noise simulation (MPNS) is required to customize the placement of microphones and speakers. 3PASS flex meets these needs. It supports all necessary steps, including recording background noise scenarios, automatic digital equalization of the playback system, and synchronization between background noise playback and measurement.
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basic information
Non-contact data collection technologies including laser vibrometers, compliant with audio vibration ETSI TS 103 224 Automated digital system equalization Flexible mounting of microphones and speakers Binaural equalization using a dummy head compliant with 3GPP TS 26.132 and ETSI TS 103 224 Remote operation of 3PASS flex playback via ACQUA/VoCAS through TCP/IP, REST, or adapter cables
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Applications/Examples of results
Sound field reproduction for device testing at a single point in accordance with ETSI TS 103 224 Multi-microphone system testing in a background noise environment: › In-car hands-free systems › In-car communication (ICC) › Voice recognition devices › Conference systems › Smart speakers › Internet of Things (IoT) devices › Home automation systems › Active noise cancelling (ANC) headphones/headsets/hearing aids › Handsets Multi-point sound field reproduction (MPNS) for conducting tests in accordance with the following: › ITU-T P.1100 Annex F › ITU-T P.1110 Annex F › ITU-T P.1120 Annex F › ITU-T P.1140 Annex B
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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.