Main Page - DRC. Acoustic Treatment and Design for Recording Studios and Listenin. 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. Everything is included except the sidebars. I've been pleased to see the current growing interest in acoustic treatment. These days, all gear is acceptably flat over the most important parts of the audio range. What's the point in buying a microphone preamp that is ruler flat from DC to microwaves when the acoustics in your control room create peaks and dips as large as 20 dB throughout the entire bass range?
This article explains the basic principles of acoustic treatment. This text will surely expand as I learn more. Please understand that acoustic treatment as described here is designed to control the sound quality within a room. Unfortunately the better commercial diffusors are not cheap. The Recording Manual. Music Acoustics, Physics, UNSW. 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 Summer scholarships and Honours scholarships are available for Australian students. (International PhD scholarships available but highly competitive.) Featured projects An unusual interaction between timpani and horns. Room EQ Wizard - REW Home Page. GIK Acoustics. Acoustic Panels and Bass Traps. Untitled Document.
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. Every room has its associated resonant frequencies. Rooms built using preferred dimensions ratios have potentially more even distributions of these resonant frequencies. Room built with angles walls or ceilings have more complicated resonant modes than typical rectangular rooms and the resonances can be potentially less severe. Absorption properties of the noise barriers made of scrap tires.
Acoustics. 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.
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.
DIN 18041 uses the noise reduction ΔL and an average absorption coefficient α–of the room’s surface area. You will find the Room Acoustics Calculator on the websites of: Acoustic Basics. 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.
Bass frequencies are the most difficult to tame in the small rooms many people use to record and mix their music. Since you hear less bass than is really in the track, you add too much bass with EQ to compensate. Welcome to ETF Acoustics.