Acoustical Investigation of Voice and Audio Links (Conncections) of the Crew on ISS (Akustika-M (Acoustics-M)) - 10.21.14

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The following content was provided by Ya. A. Altman, Y. Altman, M.D., and is maintained in a database by the ISS Program Science Office.

Experiment Details


Principal Investigator(s)

  • Ya. A. Altman, S.P. Korolev RSC Energia, Russia
  • Y. Altman, M.D., Russia

  • Co-Investigator(s)/Collaborator(s)
    Information Pending
    ACTA University, Amsterdam, IL, Netherlands

    Air Liquide, Paris, , France

    Johnson Space Center, Robotics Systems Technology Branch, Houston, TX, United States

    Sponsoring Space Agency
    Russian Federal Space Agency (Roscosmos)

    Sponsoring Organization
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    Research Benefits
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    ISS Expedition Duration
    June 2002 - December 2002

    Expeditions Assigned

    Previous ISS Missions
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    Experiment Description

    Research Overview
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    Determination of integrated acoustic load on the ISS crew with regard to both onboard systems noise, and voice signals and interference during radio communication sessions, evaluation of quality of voice communication and cosmonauts hearing, approbation of reducing acoustic load on the crew during communication sessions and improvement of the onboard communication quality.

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    Space Applications
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    Earth Applications
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    Operational Requirements
    Cosmonaut hearing protection set, Acoustic noise monitoring system (two-channel sound analyzer BK 2260), Laptop, Acoustika kit.

    Operational Protocols
    Recording of voice information on the ISS and interference in the communication link during communication sessions of the crew with the ground for further analysis. Measurement of characteristics of ISS acoustic medium and onboard communication links qualifying voice transmission and acoustic load on the crew during communication coverage.

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    Results/More Information
    Recommendations to improve the onboard communication quality with concurrent reduction of volume of audio signals, that will allow to reduce the acoustic load on cosmonauts' ears. Recommendations to add requirements aimed at assuring reliability of the audio communication concerning articulation and articulation characteristics of speech transactions to the operational requirements for acoustic conditions in the ISS RS modules. Acquisition of data to develop computer techniques to remove interference from a speech signal.

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    Related Websites
    Energia - Science Research on the ISS Russian Segment

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    image Acoustika kit.
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