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USED FLIGHT HARDWARE:
- Cosmonaut hearing protection set
- Acoustic noise monitoring system (two-channel
sound analyzer BK 2260)
- Laptop
CONSUMABLES:
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PURPOSE:
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.
OBJECTIVES:
- 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.
EXPERIMENT RESULTS:
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' organs of hearing
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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