Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

When one listens to music at home, one would like to have an acoustic impression close to that of being in the concert hall. Until recently this meant elaborate multi-channelled sound systems with 5 or more speakers. But head-related stereophony achieves the surround-sound effect in living rooms with only two loudspeakers. By virtue of their slight directivity as well as an electronic filter the limitations previously common to two-speaker systems can be overcome and this holds for any arbitrary two-channel recording. The book also investigates the question of how a wide and diffuse sound image can arise in concert halls and shows that the quality of concert halls decisively depends on diffuse sound images arising in the onset of reverberation. For this purpose a strong onset of reverberation is modified in an anechoic chamber by electroacoustic means. Acoustics and Hearing proposes ideas concerning signal processing in the auditory system that explain the measured results and the resultant sound effects pleasing to the audience.

Music --- Sound --- Acoustics and physics. --- Reverberation. --- Reverberation (Sound) --- Sound reverberation --- Echo --- Musical acoustics --- Physics --- Monochord --- Acoustics. --- Biomedical engineering. --- Engineering. --- Biomedical Engineering and Bioengineering. --- Engineering, general. --- Construction --- Industrial arts --- Technology --- Clinical engineering --- Medical engineering --- Bioengineering --- Biophysics --- Engineering --- Medicine --- Acoustics and physics

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Thanks to the progress made in materials research and to the introduction of innovative manufacturing technologies, a wide range of sound-absorbing elements are currently available to adjust the acoustic features of an environment. Nowadays, performance is only one of the required specifications, together with environmental compatibility, longevity, and affordable cost. This book collects the most recent advances in the broad-spectrum characterization of sound-absorbing materials used in civil, industrial, and tertiary applications, by means of experimental, numerical, or theoretical studies.

hollow perforated spherical structure with extended tubes --- low frequency sound absorption --- melamine foam --- wideband sound absorber --- speech clarity --- bass ratio --- sound absorption --- reverberation time --- acoustics --- aerogels --- modeling --- fiber --- porous materials --- acoustic measurements --- sound absorption coefficient --- cement-based materials --- building materials --- pervious concrete --- acoustic concrete --- household end-of-life materials --- building retrofitting --- sound insulation --- vulnerable houses --- circular economy --- egg-box --- cardboard --- textile waste --- reuse --- shunted loudspeaker --- optimal sound absorption --- fully exhaustive method --- steel industry by-products --- sound reduction index --- granular materials --- inverse method --- cross laminated timber --- impact noise --- rubber ball --- sustainable --- timber --- perforated plate --- stepwise apertures --- low frequency --- membranes --- measurement method --- transmission loss --- simulations --- experiment --- scattering effect --- diffusion coefficient --- reflecting panels --- QRD --- ISO 17497 --- n/a

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Satisfactory acoustics is crucial for the ability of spaces such as auditoriums and lecture rooms to perform their primary function. The acoustics of dwellings and offices greatly affects the quality of our life, since we are all consciously or subconsciously aware of the sounds to which we are daily subjected. Architectural acoustics, which encompasses room and building acoustics, is the scientific field that deals with these topics and can be defined as the study of generation, propagation, and effects of sound in enclosures. Modeling techniques, as well as related acoustic theories for accurately calculating the sound field, have been the center of many major new developments. In addition, the image conveyed by a purely physical description of sound would be incomplete without regarding human perception; hence, the interrelation between objective stimuli and subjective sensations is a field of important investigations. A holistic approach in terms of research and practice is the optimum way for solving the perplexing problems which arise in the design or refurbishment of spaces, since current trends in contemporary architecture, such as transparency, openness, and preference for bare sound-reflecting surfaces are continuing pushing the very limits of functional acoustics. All the advances in architectural acoustics gathered in this Special Issue, we hope that inspire researchers and acousticians to explore new directions in this age of scientific convergence.

acoustic measurements --- impulse response measurements --- omnidirectional source --- dodecahedron --- acoustic parameters --- sound source --- reverberation time --- ISO 3382 --- auralization --- sound absorption --- perforated panels --- micro-perforated panels --- resonant absorbers --- frequency domain --- PUFEM --- room acoustics --- wave-based method --- discretization error --- explicit method --- finite element method --- high order scheme --- room acoustic simulations --- time domain --- shoebox concert hall --- diffusive surfaces --- diffusers location --- acoustical parameters --- variable acoustics --- subjective investigation --- acoustics --- opera house --- intangible cultural heritage --- open-air ancient theatres --- ISO 3382-1 --- firecrackers --- building acoustics --- sound absorption coefficient --- prediction models --- supervised learning method --- worship space acoustics --- acoustics simulation --- acoustic heritage --- archaeo-acoustics --- acoustic subspaces --- FDTD simulation --- speech intelligibility --- open-plan offices --- spatial decay --- ISO 3382-3 --- room absorption --- office noise --- speech --- calculation models --- absorption --- scattering --- airflow resistivity --- long space --- coherent image source method --- sound-absorbing boundary --- sound field modeling --- scale-model experiment --- reflection power --- room response --- directional decay rates --- room modes --- eigenbeam processing --- spatial correlation --- concert hall acoustics --- lateral reflections --- shoebox typology --- spatial impression --- perception thresholds --- skeletal reflections --- reflection sequence --- seat dip effect --- seat height --- seat spacing --- mechanism --- n/a