Tip & How-To about Audio Players & Recorders

What is the purpose of a graphic equalizer?

A graphic equalizer is designed to allow the user to tailor the music to his or her personal hearing. Obviously not everyone hears frequencies the same. As you get older or are exposed to loud noises you lose sensitivity to certain frequencies. To compensate for that you can boost or cut the fequencies being played through your system. Originally the graphic equalizer was designed to make corrections to bad recordings and deficiencies in the recording medium of the time. Now they are used more to compensate for hearing deficiencies. To understand how an equalizer works you need to understand that ideally the normal person can hear about 20 khz of audio when they are young and have perfect hearing. Probably more realistically they can hear 20 hz to 15 khz. Enter the equalizer. All sounds are heard differently according to the intensity of the frequency. If your hearing is bad, say down 10db at 10khz, with an equalizer you could boost 10khz by 10db and make up for it. An equalizer contains filters which breaks the audio spectrum into bands. Could be 3, 6, 10, 15, 20 or more. The more bands the more the equalizer costs but the more corrective power you have. We have equalizers with 64 bands. . The numbers on the sliders are the frequencies your equalizer can boost or cut. Keep in mind that they are the center frequency and will effect frequencies on either side for about a 10db range. So you can cut/boost frequencies at 50hz (very low), 200hz (low but still bass), 800hz (low to mid range), 3.2khz (range of speech), and 12.8khz (high frequency). The best way to observe how your equalizer works would be to play something and adjust one control at a time to see what it does. You will notice a difference. Then it basically becomes a project to adjust the unit to the way that you like to hear your music. You like bass, boost the low frequencies. Like the highs, boost them. Give it a try.


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1 Answer

how do I stop feedback through speakers

Well, a feebackback destroyer is oke, or a good equalizer, no cheap noisy one and take one with 31 channeles /channel and lower the trequencies where about where you hear it lower frequency frequency by frequency, until you have the frequency which gives the problem and keep the frequency low in volume . But there are more ways, like replacing you monitors a bit. A low noise graphic equalizer ain't cheap. I thought ART has reasonable anti feedback surpressors....

Oct 07, 2014 | Philips 2.1 Multimedia Speaker System -...

1 Answer

Sound does not sound right Settings for Sharp Aquos LCD TV Sound Menu please Sound Mode - Should this be set to Personal, Music or Speech Equalizers (5) - Suggested plus or minus settings Vitual Sound - Should this be on or off Digital Audio - Should this be off or PCM AVL - Should this be on or off

Re Sharp LCD TV sound -

Sound mode:
"Personal" is your own user-defined setting to your own taste.
Others are presets for quick selection.
Basically it's just a Graphic Equalizer as seen on Hi-Fi's.
Leftmost slider is for low frequency Bass and rightmost is high frequency Treble.
Boost is up, or higher number.
The personal user settings depend on your speakers, room, your preference.
I personally prefer slightly boosting bass and treble for mellowness and clarity. Mid can also be slightly boosted for clearer voice etc. Like a 'W'.
Boosting mids too much can cause a 'boxy' sound.

Virtual "surround" sound:
This technology creates a wider stereo effect, simulating 3D sound depth by delaying some sounds and feeding to opposite channel.
Ear/brain trickery. Some audio suits this, other not. Your choice.

Digital Audio:
Probably for a fibre-optic port.
Unless your'e using a fibre-optic cable to a compatible digital device, try off.

PCM=Pulse Code Modulation:
AVL=Analog Voltage Level:
I 'think' this refers to matching with the audio source type as in playing DVD's.

Oct 11, 2017 | Sharp Televison & Video

2 Answers

Thanks for the answer - If we have 3 controls as Bass, Mid and Treble. If we keep those in 12 O Clock position, will the output level be equal. In using the Bass and Treble control only (if we have only two controls as Bass and Treble), controlling these knobs will affect the mid range adjustment - meaning will the relative Mid range frequencies be increased or decreased.

If all are in 12 o'clock position they are "flat" (nothing has been added or subtracted foam input signal) If you only have bass & treble, yes adjusting will affect "mids" but Mids change can go both ways dependent on increase or decrease of Bass and /or treble. By increasing bass you will pull some mids up also. By increasing treble you'll subtract some mids.

Mar 17, 2011 | Audio Players & Recorders

1 Answer

i want to do it without the need for everyone in the house to hear

I think you are telling about hearing music or sound just buy a headphone this will help you to hear the music personally.

Jan 29, 2010 | Toshiba Satellite A100-S8111TD Notebook

1 Answer

I want to know what an User EQ is?

Most Audio devices will allow you to adjust how the music is played. an EQ is just something that can increase or decrease audio Frequencies. there are usually preset EQ levels that will make Jazz, Classical, Pop music sound better. this is done by increasing the High notes or increasing the low notes to give you more of a bass sound. User EQ settings allow you to manage the frequencies more to your liking. If you want to here the high notes better or adjust the middle to hear the vocals better then you can increase those levels. Or if you love your bass sounds then you would increase the lower frequencies to give your music more boom.

Jul 29, 2009 | Coby Audio Players & Recorders

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