Course detail
Biomechanics IV - Bioacoustics
FSI-RBKAcad. year: 2024/2025
Bioacoustics deals with human organs and organs of other living creatures whose function is in some way tied to the use of sound waves, collectively to the use of acoustics. Bioacoustics deals mainly with human speech generation and hearing perception. The source voice is generated by vocal folds and is further acoustically modified by passing through the vocal tract. The auditory organ captures acoustic waves from the surrounding environment and processes them by means of complicated electro-mechanical systems into the signals, which are then supplied to the brain.
The course is also devoted to computational models of vibroacoustic systems - deterministic models (finite element method FEM, boundary element method BEM), statistical models (statistical energy analysis SEA), hybrid models (FEM + SEA).
Language of instruction
Number of ECTS credits
Mode of study
Guarantor
Entry knowledge
Rules for evaluation and completion of the course
Final examination: The examination is carried out in the form of a cross-sectional written test. Making the correct answer to less than half of the questions is a reason not to pass the exam. The final qualification of the exam takes into account the quality of elaboration of partial tasks from exercises.
The specific form of the exam, types, number of questions or examples and details of the assessment will be given by the lecturer during the semester.
The inspection of the education is carried out systematically, on the exercises the presence will be written in the student’s list. Unexcused absence is the reason for not granting the credit. A student’s readines for the education is carried out continuously for individual students, or by the short test. In case of orderly excused missing presence it is necessary to fulfil the missing items and optionally to solve some compensatory examples. The missing experimental exercise must be replaced by another date.
Aims
Students will learn valuable information about the two very important human organs important for life. The first is the vocal tract, the second is the auditory organ, which is one of the basic sensory organs. Students will learn about the proper functioning of both organs and some of their disorders and defects. In addition, students will learn computational models of vibroacoustic systems.
Study aids
Prerequisites and corequisites
Basic literature
I. R. Titze: Principles of Voice Production, Prentice Hall, 1994 (EN)
Nový, R.: Hluk a chvění, České vysoké učení technické, Praha, 2009 (CS)
Recommended reading
Lyon, R. H., DeJong, R.G: Theory and Application of Statistical Energy Analysis, Butterwortth-Heinemann, Boston, 1995 (EN)
Ohayon, R., Soize, C.: Structural Acoustic and Vibration, Academic Press, London, 1998
Rossin, T. D., editor: Springer Handbook of Acoustics, Springer, Würzburg, 2007 (EN)
Titze, I. R. , Alipour, F.: The Myoelastic Aerodynamic Theory of Phonation, National Center for Voice and Speech, Denver and Iowa City, 2006 (EN)
Elearning
Classification of course in study plans
Type of course unit
Lecture
Teacher / Lecturer
Syllabus
- Finite element method (FEM) and boundary element method (BEM) in acoustics
- Acoustic properties of open and closed spaces, spectra
- Psychoacoustic noise kriteria
- Biomechanics of human voice formativ
- Vocal tract - its spectral and modal properties, vowel formants
- Vocal folds - their functions and computational models, alternative sources of voice
- Methods for experimental voice analysis
- Biomechanics of human hearing
- Cochlea and its function, some defects of auditory organ
- Voice disorders
Computer-assisted exercise
Teacher / Lecturer
Syllabus
- Acoustic quantities and conversions between them, band spectra, decibel scales
- Spectral and modal properties of cavities
- Acoustic wave propagation in free space, acoustic sources
- Transmission of acoustic waves across different types of walls
- Vocal tract, its spectral and modal properties
- Vocal folds and their functions
- Computational models of vocal folds fiction
- Experimental voice analysis, vowel formants
- Computational models of human ear
- Modeling of cochlea function
Elearning