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Audio Equalizer Circuits
Audio Equalizer Circuits
Delay equalizer circuit
PCB Parametric Audio Equalizer
This project is based on the parametric equalizer proposed by Elektor in the late 80s or early 90s and later published in the book "Creations electroniques" in 1993 (Publisher: Publitronic). Their design involved three stereo potentiometers per channel, which means a lot of cables from the front panel to the circuit board. It`s quite tiedous to...
parametric equalizer on an audio-mixer-sized PCB
A parametric equalizer on an audio-mixer-sized PCB.
4 Band Equalizer schematic diagram
The afterward diagram is the four bandage blaster circuit. Blaster is about acclimated to advance the allegiance of sound, to accent assertive instruments, to abolish causeless noises, or to actualize absolutely new and altered timbres
10-Band Graphic Equalizer
This circuit allows you to equlize the audio signals in 10 band. It uses low amount op-amps (TL074 - JFET op-amp) to anatomy a able blaster circuit. The affection of the architecture is a classical band-pass alive filter. The VCC is in ambit of 12 ~ 15 VDC and The VDD is in ambit of -12 ~ -15 VDC respectively. As shown in the diagram, there are 10
Light circuit diagram: Audio Graphic Equalizer Circuit Using Op Amp
This is a design circuit for audio graphic equalizers, that are very common as commercial products but circuits for them are very rarely published. This circuit is a simple design circuit. The circuit is need an op-amp for amplifying the input signal. This is the figure of the circuit. Only one gyrator stage is shown: all 7 gyrators are the same c
24 band equalizer schematic design
5 Band Graphic Equalizer Circuit
This circuit is for graphic equalizer that can build with low components count and control using LA3600 single IC chip. The internal design of the chip uses transistors gyrator circuit, with connections to external capacitors to set the response. This is the figure of the circuit. Sorry, this picture is not clear. This graphic equalizer circuit is
MSGEQ7 Audio Equalizer
LA3600 5 Band Equalizer Circuit
One type of regulator of tone / tone controls are the Audio Graphic Equalizer. Audio Graphic Equalizer have 2 kinds in my opinion. Namely Audio Graphic Equalizer Bar and the type of parametric type is often called parametric equalizer. Audio Graphic Equalizer In the article this is the type of bar with 5 channels using IC LA3600. IC LA3600 is a...
The time constant of R1C1 determines the low-cutoff frequency while the time constant of R2C2 determines the high cutoff frequency. The pass-band gain, Avpass=R2/R1. For a low-cut filter, that is a high-pass filter, Za must be capacitors and Zb resistors. By substituting Za=1/sC and Zb=R into above equation, the following equation is obtained: For
6 graphic equaliser circuit 741 op amp
This circuit is half dozen Band Graphic Equaliser, you can modify sound in low, mid and high that circuit used IC 741 Op-Amp. With this circuit you can management and mix frequencies and tones as desired. The audiblefrequency spectrum is roofed in six steps: 50Hz, 160Hz, 500Hz, 1. 6kHz, 5kHz, 16kHz. All potentiometers are of 100k © linear kind. The
3 Band graphic equalizer circuit
Here is a simple 3 band graphic equalizer circuit made of a single op amp IC LF351 (IC1) and few passive components. The component values of this circuit are not very critical and can be replaced with nearest values with a little loss on the performance. This feature make it easy to be assembled from your junk box. The opamp LF351 is wired to...
3 Band graphic equalizer circuit
Here is the circuit diagram of a simple 3 band graphic equalizer circuit using a single IC and few components. The IC used here is LF 351 which is a wide bandwidth single JFET operational amplifier. The high input impedance of the IC makes this circuit compatible with most of the audio signal sources. The opamp is wired as an inverting amplifier.
5 band graphic equalizer using LA3600
The graphic equalizer shown here is based on the IC LA3600 from Sanyo Semiconductors. LA 3600 is a single integrated single Op-amp, 5 band graphic equalizer IC which is very suitable for applications like portable stereo, radio sets, home theater systems, car audio systems etc. The LA3600 can be operated from anything between 5 to 15V DC and is ex
Bass and Treble Controller- Audio Equalizer Circuit
An audio equalizer circuit is used to adjust the frequency response of an audio signal. This is a simple equalizer circuit for controlling the bass and treble (tone) of an audio amplifier. For use this equalizer circuit in amplifier, equalizer`s output should be given in the input of amplifier. So that the main input audio signal`s bass and trebl
BA3822FS 5-channel Stereo Graphic Equalizer
3 Band Graphic Equalizer Circuit
The circuit illustrates the use of 3 frequencies to produce a graphic equalizer that will be used for acoustic signals. Equalizer a passive or an active..
Equalizer Circuit Operating on Three Bands
The circuit was designed to illustrate the use of tone control circuit by which the audio signals are adjusted before being carried out to any output devi..
Graphic Equalizer Circuit for 10 Frequency Bands
The circuit was designed to create ten different frequency bands to be handled by a single graphic equalizer to produce and maintain a predetermined area..
Middle Frequency Equalizer with Parametric Feature
Equalizer a passive or an active electronic element or circuits (like tone control) used for the reason of altering or flattening the frequency response characteristics of a system NE5532 an internally compensated low noise dual operational amplifier with features such as full power bandwidth up to 140 KHz, input noise voltage of 8 nV, com
The equalizer presented in this article is suitable for use with hi-fi installations, public-address systems. mixers and electronic musical instruments. T..
10 Channel Graphic Equalizer by LA3600
In addition to using the LA3600 IC, was the 5 channel graphic equalizer. We can also be designed was the 10 Channel Graphic equalizer circuit. By connection..
5 channel graphic equalizer by BC548 transistor
The graphic equalizer circuit the frequency adjust circuit. For some kinds of audio frequency response is not smooth. The..
5 Channels Graphic Equalizer by LA3600
This circuit 5 Channels 2 Octave Graphic Equaliser,easy to make equalizer, because using IC LA3600 (easy to use) For you who take an interest sound of music..
BA3822 five-point stereo graphic equalizer circuit design
BA3822 five-point stereo graphic equalizer integrated circuit has two channels, and the five center frequencies for each channel are independently set using external capacitors. These IC feature a wide operating power supply voltage range (VCC = 3. 5V to 14V), and are available in compact 24-pin SZIP and SSOP packages, depending on the type.
LM1036 volume controller equalizer electronic project
This volume controller equalizer electronic project is designed using LM1036 DC tone volume controller with volume and balance circuit for stereo applications. The four control inputs of the LM1036 volume controller provides control of the bass, treble, balance and volume functions through application of DC voltages from a remote control system o
LM833 3 Band Audio Equalizer
The main component of this 3 band graphic equalizer is LM833 produced by National Semiconductor. LM833 has a very low noise, and a band / amplifier of 15MH..
3 Band Audio Equalizer Circuit
This 3 band equalizer circuit is an active filter network for bass, mid and high audio ranges. It is designed around the LM833 opamp from National Semiconductors. The output of this 3 way graphic equalizer is designed to be DC coupled, however due to slight DC variations through the 100K potentiometers at the feedback lines of the opamp A2, a coup
3 Band Graphic Equalizer
Using a single op-amp this easy to make equalizer offers three ranges, low frequency, mid frequency, and high. With component values shown there is approximately +/-20dB of boost or cut at frequencies of 50Hz, 1kHz and 10kHz. Supply voltage may be anything from 6 to 30 Volts. Maximum boost 20dB is only realized with maximum supply voltage of 18...
5 Band Graphic Equalizer circuit
Other one unit of graphic EQ. five bands. The basic difference with the other circuits is, that I use instead of IC, transistor and the power supply, go up in +/- 24V DC, ensuring low distortion and bigger margins of overloading. With switch S1, we can isolate the EQ. inside or except operation, leaving the musical signal to pass without no...
Audio Filters Circuits
Audio Amplifier Circuits
Audio Oscillator Circuits
Audio Mixer Circuits
Audio Tone Balance Circuits
Beeper Buzzer Circuits
Vacuum-Tube Valves Circuits
Musical & Effects Circuits
Ultrasonic distance finder circuit
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is measured. There are three main categories of distance measurement methods in use: a) By...
Simple Metal detector circuit with CD4030
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to find something potentially valuable, hidden a few centimeters below the soil. So many...
Fully automatic watering circuit for flower pots
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This circuit comes as a solution to this problem. Depending on humidity of the pot at...
Simple deep searching metal detector circuit
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the circuit of this metal detector, it is possible to detect a metal coin in depth of 90 to...
Sub-Harmonic Bass Converter for Electric Guitars
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound, such as filtering or distortion. Instead, a frequency division system produces outputs...
Echo Depth Sounding Sonar for Boats
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the calibration of the rope. This arrangement still exists in some yachts. The big...
100W HiFi Audio Amplifier Circuit
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power supply must be symmetrical so that no electrolytic capacitors are needed at the outlet....
Plant-Pot Water Level Indicator Circuit
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower. The circuit of the device is shown in Figure 2. The water detection is made from the bottom...
Analogue Sound Preasure dB-Meter Circuit
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to have a good accuracy we will get the limits of 20Hz to 20KHz. A sound to be heard does...
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