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I’ve been a proud user of Winamp for over twelve years and one of the most important reasons is the EQ.Īll of the sliders are centered on a certain frequency, in Hz.
EQ DEFINITION SOFTWARE
Software EQs, like those in your audio player of choice, essentially imitate this setup. You can adjust knobs visually very easily to get what sounds you like. In a hardware system these filters can get pretty complicated, but it’s pretty easy to see thanks to graphic EQs. Because of this, each band controls a small range of frequencies, thus allowing more control over the sound.Īudio filters are used to isolate bands, usually in a bell shape around a central band. The more bands you have, the more divisions you have in the wide range of human hearing.
EQ DEFINITION PROFESSIONAL
Professional music equipment uses twenty to thirty bands. Nicer sound systems may have three, five, or even up to twelve bands. These are also referred to as “treble” and “bass” bands, respectively. How Is It All Equalized?Įqualizers work in ranges, or “bands.” Odds are that your car at the minimum has a dual-band EQ, meaning you can cut and boost the high and low ranges. In this case, an EQ can be used to lessen and strengthen, or “cut” and “boost,” specific ranges of frequencies. You can’t move the speakers to better locations or change the layout of your seats. In your car, for example, you can’t really change how the sound travels much aside from speaker balance and fading. While still used in this way for live shows and the like, everyday listeners can use EQs to not only adjust for deficiencies in their acoustics, but for more aesthetic reasons. In general, you equalize for the physical space, to account for the particular combination of the room and equipment.
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For example, some venues will respond better to bass frequencies, so the EQ can be turned down on that end to prevent feedback and turned slightly up on the higher end to even things out.
EQ DEFINITION MOVIE
(Photo by Wikimedia Commons)Įqualizers were originally developed for physical venues such as movie theaters and outdoor areas, places that aren’t designed with acoustics in mind, to “equalize” all of the sound frequencies. Compounded by the fact that our cars, rooms, and speakers are in various shapes, sizes, and configurations, the same note from the same instrument can sound completely different, let alone a whole song! That’s why ancient amphitheaters were designed with acoustic projections in mind, so voices could carry. Our range is around 20-20,000 Hz, and the closer we approach or exceed these boundaries, the softer things sound. Certain frequencies are louder than others to our ears, despite having the same or even more energy behind it.
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As with all sound engineering, the basis is on the human ear. Equalizers are software or hardware filters that adjust the loudness of specific frequencies.