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Acoustic Treatment and Design for Recording Studios and Listening Rooms by Ethan Winer This page was last updated on June 26, 2011. French readers, see THIS version that is being translated by Christian Parent. Hungarian readers, see THIS version that was kindly translated by Tamás Bánfi.
The Recording Manual
Physics and music have been related for millenia. The art and science of music acoustics are presented here, in musician-friendly format, as is our research in music science. Navigate using the headings and images above, the site map or 'search'. News Music Acoustics, Physics, UNSW
Room Acoustics Software REW is room acoustics analysis software for measuring and analysing room and loudspeaker responses. It includes tools for generating audio test signals; measuring SPL and impedance; measuring frequency and impulse responses; generating phase, group delay and spectral decay plots, waterfalls, spectrograms and energy-time curves; generating real time analyser (RTA) plots; calculating reverberation times; calculating Thiele-Small parameters; determining the frequencies and decay times of modal resonances; displaying equaliser responses and automatically adjusting the settings of parametric equalisers to counter the effects of room modes and adjust responses to match a target curve. The audio analysis features of REW help you optimise the acoustics of your listening room, studio or home theater and find the best locations for your speakers, subwoofers and listening position. New in REW V5
GIK Acoustics. Acoustic Panels and Bass Traps.
Acoustic Sound is conveyed through waves in the air. Waves that exist between a pair of surfaces can create standing wave resonances whenever the distance between the surfaces is any even multiple of one-half of the wavelength. At resonant frequencies (tones), the sound is louder and decays much more slowly than at non-resonant frequencies, causing uneven tonal quality and interference with clarity. Resonant frequencies occur mainly in the bass range, due to the relationship between the wavelengths of low-frequency sounds and the typical sizes of listening rooms.
Abatement and Distance from Source The disruption of sound pressures waves which reduces the noise is called attenuation - Sound Pressure Level Calculator Acceptable Noise - dBA - Levels Acoustics
Room Acoustics Calculator The Room Acoustics Calculator enables you to design the acoustics of a room according to DIN 18041 and ÖNORM B 8115-3. After the usage and the appropriate standard have been selected the calculator derives the relevant design quantities, tolerance ranges or limits, and the corresponding state of the room (furnished, unfurnished, occupied or unoccupied). Where a room is required to provide good audibility over greater distances, such as, for example, in a lecture hall, both standards require compliance with a reverberation time T within a given tolerance range. For rooms where the main issue is noise reduction, and good audibility is only desired over shorter distances as, for example, in open plan offices, different design quantities are defined in the two standards.
By Ethan Winer Most budget electronic gear these days is very high quality, and can create first-rate music that sounds as good as anything on the radio. Yet many recording enthusiasts, unhappy with the quality of their productions, wrongly blame their gear. Of course, experience matters, but so does having accurate acoustics. This "Tip Jar" article from Music Connection magazine explains the basics of acoustics in a way that everyone can easily understand. All of the information herein also applies to audiophile and home theater listening rooms. Acoustic Basics
RPlusD is the latest software from AcoustiSoft. The software was written with the experience of creating five analyzers previous, all designed to meet the needs of users and available technology of the time in which the analyzer was developed. RPlusD is simply the best available analyzer for room acoustics measurement for the purpose of hifi sound in small and medium sized rooms available at any price. It is as easy to operate as can be with the guiding principle of getting measurements that are (1) verifiable (2) relevant, and most importantly (3) repeatable. Many analyzers on the market may be free or cheaper, but none or so thoroughly designed with goal of obtaining accurate and repeatable measurements in mind using typical computer hardware. Welcome to ETF Acoustics