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  2. Full-band dummy head HMS II.4 for measuring reception direction (HEAD acoustics GmbH)
Full-band dummy head HMS II.4 for measuring reception direction-HMS II.4
Full-band dummy head HMS II.4 for measuring reception direction-HEAD acoustics GmbH

Full-band dummy head HMS II.4 for measuring reception direction
HEAD acoustics GmbH

About This Product

■Summary

HMS II.4 is a full-band dummy head dedicated to measuring voice and audio quality in the receiving direction. Ideal for testing transducers used near the ear, such as mobile phones, handsets, ANC headphones, and headsets. It is also possible to measure transducers used away from the ear, such as hands-free systems and smart speakers. The shape and acoustic characteristics of the head and torso simulator are designed based on ITU-T recommendation P.58, and reproduce all structures that affect the acoustics of the human body. HMS II.4 supports measurements in the receive direction only. Therefore, only a pseudo ear is installed, and a pseudo mouse is not installed. The artificial ear complies with the requirements of ITU-T Recommendation P.57 and IEC60318-4. With HMS II.4, it is possible to create voice and audio recording data that is faithful to the sense of hearing for analysis with the measurement and analysis software ACQUA. HMS II.4 features a newly introduced module concept. This concept is common to all HEAD acoustics dummy heads in the call and audio test field. In the future, the same dummy head will be able to handle different applications. Quickly and easily replace the artificial ear and pinna to suit the measurement task.

■Highlights

・HMS II.4, which is dedicated to the receiving direction, is ideal for full-band measurements of transducers used near and far from the ear. - Binaural recording is possible for evaluating acoustic scenarios that are faithful to the sense of hearing. The left pseudo ear HIS L is required. - Conforms to international standards ITU-T P.57, P.58, and IEC60318-4 regarding reception direction measurement. - Modular concept allows for quick and easy adaptation of the dummy head to suit the measurement task.

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    Full-band dummy head HMS II.4 for measuring reception direction

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1 Models of Full-band dummy head HMS II.4 for measuring reception direction

Image Part Number Price (excluding tax)
Full-band dummy head HMS II.4 for measuring reception direction-Part Number-HMS II.4

HMS II.4

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About Company Handling This Product

HEAD acoustics GmbH

Company Overview

HEAD acoustics GmbH, founded in 1986 and headquartered in Herzogenrath, Germany, is a manufacturer and distrib...

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