Thus allowing more volts to travel to the speaker raising the volume.Ĭontrastingly, turning the knob to the left increases the resistance. ![]() In that, it raises or reduces the resistance from electrical signals.įor example, you reduce the resistance when turning the knob to the right. When you turn the resistor in a specific direction, the knob is a resistor. The control knob acts as a variable resistor in an electrical circuit. However, the factors behind the phenomenon are pretty complicated. On the other hand, turning the knob to the right increases the volume. This phenomenon is that the volume reduces any time you rotate the volume knob to the left. Volume control efficiently works with a certain phenomenon. ![]() Notably, a volume controller does not require an external circuit.īecause the device has an inbuilt bias voltage source, reducing the number of external components.Ī single or dual power supply can operate a volume controller integrated IC. This controller has an interface with push buttons for external control in a TSSOP package. We will discuss the volume controller circuit, its working, and the step-by-step process of making one.Īlso, it will help you learn and make the right connections for your needs! 1. Significantly, adjusting the volume assists in finding the correct volume and balance level for our audio equipment. A volume control circuit is a wiring system found in a volume controller. It is usually centered around 80 Hz and is used to enhance bass vocals, and low frequency instruments.Īlso, because low frequencies tend to go everywhere and often cause feedback, we can use this control to cut that frequency back in some inputs.The course helps to build an audio device. The same is true of the low frequency control. The control though centered at 12 kHz will effect on most consoles, about two octaves of frequencies. What we control up at those frequencies would be mostly to add crispness to an instrument or to take the “S” sounds out of the speaking or singing voice. That frequency is, for you musicians, about F# in the ninth octave on the piano. Most high frequency controls such as this one are centered around 12,000 hertz (or “12 kHz”). If we turn the high, mid, or low knob to the left we will begin to turn down those frequencies. Let me take a shot at clearing up the confusion.įirst let’s review just what happens when we turn any of the control knobs. That fourth knob, the one for determining the frequency for the mid-range filter is what confuses many people. The bass control at home would be similar to the low frequency control on the console. To equate that to the stereo at home the High frequencies would be those controlled by your treble control, which also overlaps into the mid-range frequencies. The picture below (click to enlarge) is an example of a rather basic EQ section on a Mackie 3204 console, a common board in many churches.Īs you can see there are four separate knobs, one each for high frequencies, mid-range frequencies, and low frequencies, and one to select the center frequency for the mid control. It’s these folks, and others afraid to ask about things like the EQ section on the console, to whom this article is devoted.įirst let’s take a look at the audio console EQ section. First, where’s the bass and treble control?Īnd, what are these knobs for – the ones on the console labeled high, mid and low?”īelieve it or not, I’ve heard questions like this posed more than once by people who do sound at their churches. “You know, I’ve been doing sound here at my church for about two years now, and there are a couple of things that aren’t quite clear to me.
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