HMS II.3 – Fullband artificial head complying with all relevant standards

HMS II.3 is the fullband artificial head ideal for measuring voice and audio quality of... 

HMS II.3 is the fullband artificial head ideal for measuring voice and audio quality of close-to-the-ear audio and telecommunication devices (e.g. mobile phones, handsets, ANC headphones/headsets). In addition, the artificial head allows measurements even of far-to-the-ear communication devices like hands-free systems or smart speakers. The artificial head realistically replicates all acoustically relevant structures of the human anatomy.

HMS II.3 supports measurements in sending and receiving direction. For this purpose, the artificial head is equipped with an impedance simulator in the right ear and a two-way mouth loudspeaker – both meeting the requirements in the recommendations ITU-T P.57 and P.58. With HMS II.3, users can create aurally-accurate voice and audio recordings for analysis with the measurement and analysis software ACQUA. The artificial mouth reproduces the complete spectrum of human voice, allowing narrowband, wideband, super-wideband and even fullband measurements.

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HMS II.3 is the fullband artificial head ideal for measuring voice and audio quality of close-to-the-ear audio and telecommunication devices (e.g. mobile phones, handsets, ANC headphones/headsets). In addition, the artificial head allows measurements even of far-to-the-ear communication... 

HMS II.3 is the fullband artificial head ideal for measuring voice and audio quality of close-to-the-ear audio and telecommunication devices (e.g. mobile phones, handsets, ANC headphones/headsets). In addition, the artificial head allows measurements even of far-to-the-ear communication devices like hands-free systems or smart speakers. The artificial head realistically replicates all acoustically relevant structures of the human anatomy.

HMS II.3 supports measurements in sending and receiving direction. For this purpose, the artificial head is equipped with an impedance simulator in the right ear and a two-way mouth loudspeaker – both meeting the requirements in the recommendations ITU-T P.57 and P.58. With HMS II.3, users can create aurally-accurate voice and audio recordings for analysis with the measurement and analysis software ACQUA. The artificial mouth reproduces the complete spectrum of human voice, allowing narrowband, wideband, super-wideband and even fullband measurements.

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Highlights

  • The artificial head measurement system is ideally suited for measurements of close-to-the-ear and far-to-the-ear audio and communication devices under realistic conditions
  • HMS II.3 is suitable for super-wideband and fullband measurements in sending and receiving direction
  • The artificial head enables binaural recordings to evaluate acoustic scenarios aurally-accurate (requires optional impedance simulator HIS L for the left ear)
  • HMS II.3 complies with all relevant international standards like recommendations ITU-T P.57, P.58 as well as IEC 60318-4

Applications

  • Voice quality and audio quality testing of e.g.:
    • Mobile phones and handsets
    • Headsets, headphones like in-ear buds, and wearables – with and without Active Noise Cancellation (ANC)
    • Hearing aids and active/passive hearing protection
    • In-vehicle applications like hands-free terminals, in-car communication (ICC) systems, infotainment systems, emergency call (eCall) devices
    • Voice-controlled smart home devices like smart speakers and other IoT devices
    • Conference phones and hands-free devices

Features

  • HMS II.3 is equipped with a two-way mouth loudspeaker as well as an impedance simulator for the right ear (HIS R) – optionally, it is possible to add an ear simulator for the left ear (HIS L)
  • The ear simulators of the artificial head provide a transmission range from 3 Hz to 20 kHz
  • With equalization, HMS II.3 transmits speech signals from 50 Hz up to 20 kHz
  • The mouth simulator of the artificial head is able to play back high speech levels with low distortion
  • The measurement and analysis software ACQUA enables to equalize the two-way mouth simulator automated and comfortably
  • HMS II.3 is available with the anatomically shaped pinna simulator (type 3.3) or with the simplified pinna simulator (type 3.4)
  • The artificialhead can be equipped with an artificial nose (AN-HMS); it enables acoustic measurements of audio and communication devices where a nose ensures secure hold of various devices (e.g. augmented reality glasses, virtual reality headsets)
  • Users can mount all artificial head variants on the height-adjustable tripod HMT III or on the torso box HTB VI

Variants

HMS II.4 – Measurements in receiving direction

The artificial head measurement system HMS II.4 provides an ear simulator only but no artificial mouth. Thus, the artificial head HMS II.4 is ideally suited if measurements are required in receiving direction only.

 

HMS II.5 – Measurements in sending direction

HMS II.5 is the artificial head measurement system equipped with a mouth simulator only, not with an ear simulator. Therefore, HMS II.5 is the right choice if measurements are required in sending direction only.

 

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