Descriptif
Faculty of Electronics and Information Technology, Warsaw, Poland
Objectifs pédagogiques
Acoustics is a branch of physics and technology related to the sense of hearing. In this course hearing and sound perception will be discussed with reference to physical characteristics of sound, properties of wave propagation, and procedures of sound measurement and analysis. Lectures will cover various dimensions of sound perception (loudness, pitch and time phenomena, binaural hearing), certain hearing models, measurement parameters specifically designed to represent perceived attributes of sound, and basic measurement for predicting the perceptual quantities. A part of the course will be devoted to practicum in acoustical measurements.
effectifs minimal / maximal:
20/30Diplôme(s) concerné(s)
Parcours de rattachement
Pour les étudiants du diplôme Ingénieur AgroParisTech
Basic knowledge of engineering, physics and mathematics.
Format des notes
Numérique sur 20Pour les étudiants du diplôme Ingénieur AgroParisTech
Vos modalités d'acquisition :
- Active participation in the course (compulsory attendance of classes, participation in practical exercises, etc).
- Evaluation test at the end of the course.
Le coefficient de l'UE est : 2
Programme détaillé
Hearing System
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Structure: External and middle ear, Inner ear, Basic physiological mechanisms of hearing,Hearing: Absolute thresholds, masking patterns, forward masking, frequency selectivity and masking, psychophysical tuning curves, the concept of auditory filter, loudness, equal loudness contours, scaling of loudness, nonlinear distortion, temporal processing in the auditory system, pitch perception, timbre perception, localization of sounds, binaural unmasking, models of auditory perceptionSpeech: Production and perception,Noise: Noise control, effects of noise on man, hearing loss, hearing aids. Acoustical measurements General: Fundamental acoustic quantities, sound wave propagation, waves and vibrations,Sound measuring instrumentation: Microphones, calibration, sound level meters, spectrum analyzers for acoustic signals,Measurements: sound pressure level measurements, sound intensity measurements, psychoacoustical measurement procedures, signal detection theory in psychoacoustical measurements, speech intelligibility measurements, physical measures developed to represent the perceived attributes of sound, sound quality assessment. Selected applications Audio coders, assessment of speech intelligibility in communication systems, assessment of the quality of reproduced sound. Practicum It is expected that practicum will include measurements of perceptual attributes of sound (e.g. loudness, thresholds, masked thresholds), and physical sound quantities (e.g. sound pressure level, sound intensity). Visits to acoustical/sound engineering laboratories are also forseen. Suggested references
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