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 Ethan Winer is co-owner of RealTraps, a leading manufacturer of acoustic treatment products. Ethan has at various times earned a living as a professional musician, computer programmer, circuit designer, recording engineer, composer/arranger, technical writer, acoustician, and college instructor. Ethan has more than 150 feature articles published in various computer and audio magazines. He’s produced dozens of educational and music videos, and composed three pieces for full orchestra, all of which have been performed. A shorter, and much simpler, version of this document is on the RealTraps web site. If you have questions about anything in this article, or anything else related to audio, you're welcome to ask in my Audio Expert Forum. This page was last updated on May 9, 2016.
I've been pleased to see the current growing interest in acoustic treatment. This text will surely expand as I learn more. Top. 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. In Search of..... - TV.com www.tv.com/shows/in-search-of Narrarated by Leonard Nimoy, In search of was a 30 minute syndicated show that covered a wide range of paranormal topics.
It pioneered a lot of the methodology that ... Search Engine - Download.com download.cnet.com/s/search-engine search engine free download - GSA Search Engine Ranker, Nomao - The personalized search engine, Zoom Search Engine, and many more programs Google Search - Download.com download.cnet.com/s/google-search google search free download - Google Search, Google Toolbar for Internet Explorer, Google Search, and many more programs Star Search - Episode Guide - TV.com www.tv.com/shows/star-search-2003/episodes Star Search episode guides on TV.com. 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 Acceptable noise - dBA - levels at some locations Acoustic Calculation of Ventilation Systems A procedure for acoustic noise calculation of ventilation systems Adding Decibels The logarithmic decibel scale is convenient calculating sound power levels and sound pressure levels for two or more sound sources Blade Dampers and Noise Generation Noise generated in blade dampers Blade Pass Frequency - BPF The fan Blade Pass Frequency noise can be very intense - vary with number of blades and rotation velocity Classification of Noise Reduction Silencers Eliminating noise with reactive silencers - diffuser type silencers - active silencers and/or dissipative silencers Comparing Noise Criteria Comparing Noise Criteria - Noise Criterion (NC), Noise Rating (NR) and dB(A) Daily Noise Dose Level Decibel Decibel A, B and C Sound Power.
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. One common problem is a mix that sounds great in your room is too bassy when played anywhere else. Since you hear less bass than is really in the track, you add too much bass with EQ to compensate. AVOID EARLY REFLECTIONS Another common mixing problem is poor clarity and imaging caused by "early" reflections. Welcome to ETF Acoustics.