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
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
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