Biomedical Acoustics
		            Dr. Rice
                    Syllabus and Assignments

Catalog Description
Introduction to sounds in the physiological and medical arena. 
Topics include physics of sound propagation, sources and
mechanisms of cardiac and respiratory sound production, sound
transmission, auscultation and stethoscope evaluation,
psychoacoustics and auditory perception, speech production and
structure of the speech signal, medical ultrasound applications
and safety.

Course objectives
This course presents the theory underlying sound production,
propagation, and reception, and its interaction with matter.  It
examines a number of specific applications using this theory. 
The structure of the course permits flexibility, so the specific
applications covered can vary with the interests of the class

On the completion of this course, the student should be able to:

*  Identify the mechanism and theory pertaining to a particular application
    such as sound speed, resonant frequencies, or two- 
    and three-media propagation.

*  Interpret measurements of sound speed, intensity, or spectral content.

*  Explain the anatomical, mechanical, and physiological mechanisms of hearing
    as well as the structure of the speech signal.

*  Be able to determine the audibility of a sound alone or in the presence
    of other sounds (masking).

*  Interpret anatomic and physiologic quantities from diagnostic ultrasound 

BMEN 304, Math 221, or permission of the instructor

Grades are based on homework, tests, and a term project

Text:  Kinsler, LE, Frey, AR, Coppens, AB, Sanders, JV.  Fundamentals of Acoustics, 4th ed., Wiley

TOPICS  syllabus and assignments
Introduction, definition of sound
Exponential and phasor representation of SSS
Wave equation interpretation and demonstration
Transverse and standing waves on a string
Transverse waves in bars
Plane waves in fluids
Sound speed and its measurement
Acoustic impedance, specific acoustic Z
Sound speed in tissue
Transmission and reflection, two- and three-layer propagation
The ear and hearing
Sound level measurements
Sounds and structure of speech
Speech synthesis and recognition
Sound sources, monopole, dipole, practical transducers
Directivity, beamwidth, near- and far-field
Sonar, principles, active, passive, doppler
Ultrasound: signals and transducers
Diagnostic ultrasound: dosimetry, safety, modes, imaging
Therapeutic ultrasound
Ultrasonic tissue characterization
Audio equipment specifications: microphones, receivers, amplifiers, speakers
Sound recording and coding

some acoustic weblinks