## Monday, December 3, 2012

### EC2053 ENGINEERING ACOUSTICS SYLLABUS | ANNA UNIVERSITY BE ECE 8TH SEMESTER SYLLABUS REGULATION 2008 2011 2012-2013

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EC2053 ENGINEERING ACOUSTICS SYLLABUS | ANNA UNIVERSITY BE ECE 8TH SEMESTER SYLLABUS REGULATION 2008 2011 2012-2013 BELOW IS THE ANNA UNIVERSITY 8TH SEMESTER B.E ELECTRONICS AND COMMUNICATION ENGINEERING DEPARTMENT SYLLABUS, TEXTBOOKS, REFERENCE BOOKS,EXAM PORTIONS,QUESTION BANK,PREVIOUS YEAR QUESTION PAPERS,MODEL QUESTION PAPERS, CLASS NOTES, IMPORTANT 2 MARKS, 8 MARKS, 16 MARKS TOPICS. IT IS APPLICABLE FOR ALL STUDENTS ADMITTED IN THE YEAR 2011 2012-2013 (ANNA UNIVERSITY CHENNAI,TRICHY,MADURAI, TIRUNELVELI,COIMBATORE), 2008 REGULATION OF ANNA UNIVERSITY CHENNAI AND STUDENTS ADMITTED IN ANNA UNIVERSITY CHENNAI DURING 2009

EC2053 ENGINEERING ACOUSTICS L T P C
3 0 0 3
AIM
This course aims at providing an overview of engineering acoustics.
OBJECTIVE
 To provide mathematical basis for acoustics waves
 To introduce the concept of radiation reception absorption and attenuation of
acoustic waves.
 To present the characteristic behaviour of sound in pipes, resonators and filters.
 To introduce the properties of hearing and speech
 To describe the architecture and environmental inclusive of reverberation and noise.
 To give a detailed study on loud speakers and microphones.
UNIT I ACOUSTICS WAVES 9
Acoustics waves - Linear wave equation – sound in fluids – Harmonic plane waves –
Energy density – Acoustics intensity – Specific acoustic impedance – spherical waves –
Describer scales.
Reflection and Transmission: Transmission from one fluid to another normal and
oblique incidence – method of images.
118
UNIT II RADIATION AND RECEPTION OF ACOUSTIC WAVES 9
Radiation from a pulsating sphere – Acoustic reciprocity – continuous line source -
radiation impedance - Fundamental properties of transducers.
Absorption and attenuation of sound
Absorption from viscosity – complex sound speed and absorption – classical absorption
coefficient
UNIT III PIPES RESONATORS AND FILTERS 9
Resonance in pipes - standing wave pattern absorption of sound in pipes – long
wavelength limit – Helmoltz resonator - acoustic impedance - reflection and transmission
of waves in pipe - acoustic filters – low pass, high pass and band pass.
Noise, Signal detection, Hearing and speech
Noise, spectrum level and band level – combing band levels and tones – detecting
signals in noise – detection threshold – the ear – fundamental properties of hearing –
loudness level and loudness – pitch and frequency – voice.
UNIT IV ARCHITECTURAL ACOUSTICS: 9
Sound in endosure – A simple model for the growth of sound in a room – reverberation
time - Sabine, sound absorption materials – measurement of the acoustic output of
sound sources in live rooms – acoustics factor in architectural design.
Environmental Acoustics:
Weighted sound levels speech interference – highway noise – noise induced hearing
loss – noise and architectural design specification and measurement of some isolation
design of portions.
UNIT V TRANSDUCTION 9
Transducer as an electives network – canonical equation for the two simple transducers
transmitters – moving coil loud speaker – loudspeaker cabinets – horn loud speaker,
receivers – condenser – microphone – moving coil electrodynamics microphone
piezoelectric microphone – calibration of receivers.
TOTAL : 45 PERIODS
TEXT BOOK
1. Lawrence E.Kinsler, Austin, R.Frey, Alan B.Coppens, James V.Sanders,
Fundamentals of Acoustics, 4th edition, Wiley, 2000.
REFERENCE
1. L.Beranek , “Acoustics” - Tata McGraw-Hill