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Scientific knowledge expected from
audiological engineers and researchers
being applied in Phonak‘s research and
development
Draft Dec 2007
Michael Boretzki
Foundations of research
• Hypothesis, theory and experienced world
• Mathematics and modelling
• Design and conduction of measurements,
oberservations, experiments
• Causality: Handling variability in experiments
vs. observations
• Development of an experimental setup
• Principles of asking and instructing subjects
• Interviewing, questionaires
• Data analysis
• Data handling: databases, data preparation
• Descriptive, inferential statistics
• Data mining
• Documentation, communication of
measurements, observations, experiments
Acoustics
• Measurement of
• Sound pressure level
• Frequency spectrum
• Reverberation
• Room acoustics
• Electroacoustics
• Acoustics of sound stimulating the ear
• Basics of sound engineering
• Recording
• Cutting
• Processing
• Mixing
Physiology of hearing
• Basics of neuronal processing
• System and components of hearing organ
• Objective measures of the auditory system
Psychophysics
• Measurement of
• absolute thresholds
• difference thresholds
• absolute magnitudes
• Auditory psychophysical relations
• Loudness
• Timbre
• Intelligibility
• Localization
• Auditory pleasantness
Psychoacoustics
• Basics of sensory processing
• Sensation and masking
• Formation of perceptual field, Gestalt
formation
• Impact of experience and memory
• Dimensions of hearing
• Measurement of
• Hearing thresholds
• Loudness
• Intelligibility
• Localization
• Auditory pleasantness
Audiology
• Hearing impairment
• Origins of hearing impairment
• Disorders of auditory system
• Functional impairments
• Auditory disabilities
• Handicaps
• Psychological consequences of hearing
impairment
• Rehabilitation
• Pharmaceutic
• Surgery
• Amplification
• Psychological
• Pediatric audiology
• Diagnostics
• Audiometry
• Needs assessment
• Outcome assessment
• Gerontology
Amplification
• Principles of digital signal processing
• Microphones, receivers
• Hearing aids, cochlear implants, middle-ear
implants, bone-anchored systems
• Technical principles of hearing aids
• Analysis of incoming sound
• Amplification: Adaptive gain steering
• Sound cleaning: Noise suppression,
directionality
• Artifact suppression
• Automatic steering of signal processing
• Manual steering of signal processing
• Fitting hearing aids
• Model and diagnostics-driven part
• Experience-driven part
• Measurement and analysis of hearing aids‘
behaviour in general and at individual ear
Tools
• Word, Excel, Powerpoint, Access, Outlook
• Internet
• Matlab, C, VBA
• Statistics software
• Sound engineering software
• Audiometrical software
• Fitting software
• Equipment and software for electroacoustic
analysis
• English