You are here:
Audio Systems/31 band eq
Advertisement
Question
Hello some equalizers are (1/3 octave) what does that mean.also equalizers that are like that are they easier to use to find those frequencies that are to high or to low. Thanks:)
Equalizers have filters to pass each band of the audio. The filters are designed to pass a band around the center point of the frequency listed. If it is 31 band and 1/3 octave it means each of the 31 bands are designed to pass the audio for that frequency that has a slop of 1/3 octave either side of the center.
See this TOA equalizer manual for a good idea of the 1/3 octave filters and how they work:
http://www.toaelectronics.com/spec_sheets/e-1231.pdf
EQs are used to balance the sound; some use them in recording for correction of room acoustics; some use them for improving the playback sound. Each band will boost or attenuate that band with the center frequency as shown and the band either side of center that rolls of at the rate of 1/3 per octave.
Hope that clears it up.
C
Related Articles
Answers by Expert:
Cleggsan
Expertise
Audio Design Engineer; systems, loudspeakers, cd/dvd players, etc. I am knowledgeable in all high end audio equipment and installations. MAKE SURE YOU GIVE A MAKE AND MODEL NUMBER AND CAR IF IT IS AN AUTO QUESTION. Note: I am getting some who ask good questions that take a lot of time to research but then the questioner fails to read the answer. Please don't ask questions unless you are seriously looking for an answer. If you find an answer to your question otherwise then let me know with your reply. Thank you.
Experience
Have been associated with audio design, standards, testing and component systems for over 40 years.
Organizations
Life Fellow Member of Audio Engineering Society
Life Senior Member of Institute of Electronic and Electrical Engineers
Publications
Review technical manuscripts for IEEE Spectrum
Write occasionally for high-end audio publications
Education/Credentials
BSEE/MSCS/MBA
Past/Present Clients
Past Employee/advisor to several well known audio products manufacturers
©2012 About.com, a part of The New York Times Company. All rights reserved.