Course detail

Room Acoustics

FEKT-MPC-AKPAcad. year: 2019/2020

The course deals with the propagation of sound in closed space, the solution of the wave equation in closed space, wave, geometric and statistical acoustics, measurement of the reverberation time and impulse response of the space, objective criteria for evaluation of listening space quality, design of acoustic absorption and dispersion elements and modern methods of evaluation of acoustics of listening Spaces such as 3D impulse response of the space, SIRR method and acoustic studies with virtual orchestra. Laboratory exercises are focused on the design and simulation of acoustics of selected types of listening spaces in EASE and EASERA programs.

Language of instruction

Czech

Number of ECTS credits

6

Mode of study

Not applicable.

Guarantor

doc. Ing. Jiří Schimmel, Ph.D.

Department

Department of Telecommunications (UTKO)

Learning outcomes of the course unit

On completion of the course, students are able to:
- explain sound propagation in enclosed space,
- measure the reverberation time and the impulse characteristic of the space,
- calculate objective criteria for the quality assessment of listening spaces,
- design basic absorption and diffusion elements to adjust the reverberation time of listening spaces,
- create a simulation of the distribution of sound pressure using geometric and numerical methods,
- propose solutions for acoustic modifications of newly realized and existing listening spaces.

Prerequisites

The knowledge of basic physical laws and quantities of the sound field is required as well as the knowledge of laws and quantities in electrical circuits, characteristics of electric circuit elements, circuit behaviour with inertia elements, fundamentals of electro-mechanic and electro-acoustics analogy, periodical and non-periodical signal spectra, random variables and basic terms from the area of statistics

Co-requisites

Not applicable.

Planned learning activities and teaching methods

Teaching methods depend on the type of course unit as specified in article 7 of the BUT Rules for Studies and Examinations.
- Lectures provide explanations of the basic principles, subject methodology, examples of problems and their solutions.
- Laboratory exercises support practical mastering of the themes presented in lectures. Active participation of students is required.
Participation in lectures is recommended. Participation in other ways of instruction is checked.

Assesment methods and criteria linked to learning outcomes

Evaluation of study results follow the BUT Rules for Studies and Examinations and Dean's Regulation complementing the BUT Rules for Studies and Examinations. Up to 40 points can be obtained for elaboration of projects in laboratory exercises. The minimal scope of the elaboration of projects are specified by a regulation issued by the guarantor of the course and updated for every academic year. Up to 60 points are given for the final examination, and it is necessary to get at least 20 points for its successful completion.

Course curriculum

1. Spreading of sound in enclosed space, diffusion reflection, diffraction, solution of wave equation in closed space, wave acoustics.
2. Geometric acoustics, sound image method of simulation, ray-tracing. Statistical acoustics, reverberation.
3. Measurement of reverberation time and impulse response of the space, energy decay curve and energy decay relief.
4. Objective criteria for assessing the quality of listening spaces.
5. Structures for acoustic absorption and diffusion, oscillating panels, Helmholtz resonator.
6. 3D impulse response of the space, SIRR method, acoustic study with virtual orchestra.

Work placements

Not applicable.

Aims

The aim of the course is to acquaint students with the methods of sound propagation in enclosed space, design of acoustic absorption and scattering elements, measurement of reverberation time and impulse characteristics of space and calculation of objective criteria of acoustics of listening space.

Specification of controlled education, way of implementation and compensation for absences

It is obligatory to undergo all laboratory exercises in regular or alternative terms to complete the course. Other forms of checked instruction are specified by a regulation issued by the guarantor of the course and updated for every academic year.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

KOLMER, F., KYNCL, J. Prostorová akustika. 2, vyd. Praha: Státní nakladatelství technické literatury, 1982, 242 s., ISBN 0451480 (CS)

Recommended reading

Not applicable.

Classification of course in study plans

  • Programme MPC-AUD Master's

    specialization AUDM-TECH , 2 year of study, summer semester, compulsory-optional
    specialization AUDM-ZVUK , 2 year of study, summer semester, compulsory-optional

Type of course unit

 

Lecture

26 hod., optionally

Teacher / Lecturer

doc. Ing. Jiří Schimmel, Ph.D.

Laboratory exercise

18 hod., compulsory

Teacher / Lecturer

doc. Ing. Jiří Schimmel, Ph.D.

Exercise in computer lab

21 hod., compulsory

Teacher / Lecturer

doc. Ing. Jiří Schimmel, Ph.D.