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民航局航空医学中心 Civil Aviation Medicine Center, CAAC

Development of Mandarin Speech Test

Materials for Chinese Civilian Pilots

Mosheng Hu

Civil Aviation Medical Center

Beijing,China

2018.11.12

民航局航空医学中心 Civil Aviation Medicine Center, CAAC

Background--Motivation and Problem Statement

➢Communication is crucial for aircraft safety

➢Hearing loss will bring risks to pilots

➢Current audiological test method of CAAC has faults

➢Experience can make up the effect of hearing loss

➢Using occupational stimuli is a meaningful effort

➢Directly relate to the “real world” job performance

民航局航空医学中心 Civil Aviation Medicine Center, CAAC

Select language database

Edit sentence lists

Record stimuli audio

Equivalence verification

Formalize pass/fail criteria

short-term goal

long-term goal

Methods

民航局航空医学中心 Civil Aviation Medicine Center, CAAC

Methods—The potential speech corpus

民航局航空医学中心 Civil Aviation Medicine Center, CAAC

Departure

Speed

En route

VOR

Altitude

Trasponderfrequency

Descent

Direction

Landing

Afterlanding

QNH

Nonroutineconditions

Methods

key points

民航局航空医学中心 Civil Aviation Medicine Center, CAAC

Results--Preliminary sentence list size

• lists have been edited20

• sentences for each list20

• sentences in total400

民航局航空医学中心 Civil Aviation Medicine Center, CAAC

Results--Basic characteristics of 40 subjects

n=40

民航局航空医学中心 Civil Aviation Medicine Center, CAAC

Results--Mean word recognition score(WRS)

民航局航空医学中心 Civil Aviation Medicine Center, CAAC

Results -- Equivalence verification

民航局航空医学中心 Civil Aviation Medicine Center, CAAC

Results--Mean performance of sentence lists

民航局航空医学中心 Civil Aviation Medicine Center, CAAC

Results -- Logistic Regression and P-I Functions

民航局航空医学中心 Civil Aviation Medicine Center, CAAC

Conclusion

➢14 sentence lists left

➢The difficulty level is equivalent

➢Can be used for further research

民航局航空医学中心 Civil Aviation Medicine Center, CAAC

THANK YOU FOR YOUR ATTENTION

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