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HEAD acoustics launches new generation of artificial heads with advanced types of artificial ears

07-13-2021 01:19 PM CET | IT, New Media & Software

Press release from: HEAD acoustics GmbH

HMS II.3 LN HEC is the new artificial head measurement system for testing voice and audio quality

HMS II.3 LN HEC is the new artificial head measurement system for testing voice and audio quality

The new generation of artificial head measurement systems by HEAD acoustics offers a variety of new and unique features for telecommunication and audio testing. The basis is a modular concept allowing to exchange different types of artificial ears by the user himself. The new type of artificial ear which better reproduces the ear canal geometry and the human ear impedance is combined with a truly fullband artificial mouth. In addition, numerous detailed refinements and an extensive range of accessories help to make life easier for acoustics engineers. Due to its modularity, the new artificial head is future proof. Users can be easily extend and upgrade the artificial head.

“The new HMS II.3 LN HEC artificial head is perfect for testing the voice and audio quality of all telecommunication and audio equipment,” says Christian Schüring, sales manager Telecom at HEAD acoustics GmbH. “By emulating the acoustically relevant structures of the pinna and ear canal as well as an improved replication of the ear impedance in combination with the outstanding dynamic range, the artificial head sets a new standard, especially for measurements of sound transducers close to the ear, such as headphones, hearing aids and mobile phones."

New occluded ear simulator and pinnae

HMS II.3 LN HEC realistically emulates all the acoustically relevant structures of the human ear. The new pinnae with a human-like ear canal are especially suitable for testing e.g. in-ear headphones and ear buds. The artificial head is equipped with a low-noise occluded ear simulator whose impedance response matches that of the human ear. The high-sensitivity microphone capsule has an inherent noise floor of 16 dBSPL(A) and a maximum sound pressure level of 148 dBSPL. This dynamic range makes the artificial head the perfect measurement instrument for testing high-quality ANC headsets. In addition, measurements can cover the entire dynamic range of human hearing, from the hearing threshold to the pain threshold.

Two-way mouth loudspeaker

The artificial mouth of HMS II.3 LN HEC is equipped with a two-way loudspeaker. It reproduces the full frequency range of the audible human voice, making it ideal for fullband measurements. In sending direction, the transmission range is between 50 Hz and 20 kHz. The acoustic characteristics of the two-way mouth exceed the requirements of the international recommendation ITU-T P.58.

Modular concept

The modular concept is yet another feature of HMS II.3 LN HEC: in the future, ear simulators and pinnae of the new artificial head measurement systems can be interchanged quickly and easily. “This feature means that for the first time, users now have an artificial head that they can customize for different applications,” says Dr. Gierlich. “Depending on the measurement scenario, engineers can use different types of artificial ears for their measurements. They can choose from low-noise or standard occluded ear simulators, standard or simplified pinnae or the new pinnae with human-like ear canal.”

For further information please visit the landing page for the new artificial head generation: https://www.head-acoustics.com/new-artificial-heads?mtm_campaign=artificial-head&mtm_kwd=open-pr

PRESS TEAM
HEAD acoustics GmbH
Ebertstr. 30a
D-52134 Herzogenrath
Germany

+49 2407 577 0
presse@head-acoustics.com

About HEAD acoustics
HEAD acoustics GmbH is one of the world's leading companies offering holistic solutions for sound and vibration analysis. In the telecom sector, the company enjoys global recognition due to the expertise and pioneering role in the development of hardware and software for the measurement, analysis and optimization of voice and audio quality as well as customer-specific solutions and services. HEAD acoustics' range of services covers sound engineering for technical products, investigation of environmental noise, speech quality engineering as well as consulting, training and support. The medium-sized company from Herzogenrath near Aachen has subsidiaries in China, France, Italy, Japan, South Korea, the UK and the USA as well as numerous sales partners worldwide.

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