Description: This is a classic signal mixer that is used for audio purpose. VR1 & VR2 are inputs audio volume controllers and VR3 is used to control the balance between Input1 and Input2. Connect a dynamic microphone to Input1 and a music without vocal to Input2, then adjust the VR1, VR2 and VR3 for obtaining a good mixed audio signal from the circuit Output. VR4 is an optional volume control for output audio signal.
The described circuit functions as a basic audio signal mixer, allowing users to blend two distinct audio sources effectively. The primary inputs, designated as Input1 and Input2, serve different purposes: Input1 is intended for a dynamic microphone, which captures vocal audio, while Input2 is designed for instrumental music tracks that do not contain vocal elements.
The variable resistors (VR1 and VR2) act as volume controls for each input, enabling the user to adjust the amplitude of the audio signals independently before mixing. This feature is crucial for achieving a balanced output, as it allows the user to increase or decrease the volume of each source according to preference.
VR3 serves as a balance control, allowing for fine-tuning between the two inputs. By adjusting VR3, the user can emphasize one audio source over the other, facilitating a more tailored sound experience.
The output of the mixer combines the adjusted signals from Input1 and Input2, producing a mixed audio signal that can be sent to a speaker or other audio output device. An additional variable resistor, VR4, is included as an optional feature to control the overall output volume, providing further flexibility in managing the final audio level.
In summary, this classic signal mixer circuit is designed for straightforward audio mixing applications, making it suitable for various scenarios, such as live performances, home studios, or any setting where mixing vocal and instrumental audio is required.This is a classic signal mixer that is used for audio purpose. VR1 & VR2 are inputs audio volume controlers and VR3 is used to control the balance between Input1 and Input2. connect a dynamic microphone to Input1 and a music without vocal to Input2, then adjust the VR1, VR2 and VR3 for obtaining a good mixed audio signal from the circuit Output.
VR4 is an optional volume control for output audio signal.
That circuit protects the overdriven signals going into an amplifier. Instead of a zener diode, we use a transistor. That way we ensure that the above the ordinary input voltages (1 volt r.m.s.) can be achieved without distortion. Also, the...
Utilizes three transistor stages and a Foster-Seeley discriminator to produce an audio output of 1 V peak-to-peak. -D. Bray, Solid State Makes Debut in Big Screen Color TV, Electronics, 39:8, p 99-105.
The circuit in question employs a combination of three...
The function of this automatic volume control circuit is to amplify signals without distorting their dynamic compression. The amplitude differences in the signal are leveled off, eliminating disturbing effects. This technique avoids overcompensation in volume. The circuit is utilized to...
A circuit that activates a relay upon detecting audio pulses from one channel of an MP3 player. The intention is to synchronize recorded audio pulses with music to control a motor for mouth movement. For a stereo player, music or...
The circuit utilizes a transistor (VT) and a voltage regulator (VSL) to create a constant current source, employing three regulators to enhance the performance of the regulator circuit.
The described circuit employs a transistor (VT) in conjunction with a voltage regulator...
This is a classic 2-transistor astable multivibrator. Many other NPN small signal or switching transistors can be used, including 2N4401, PN2222, or 2N2222 using the circuit on the left. The circuit can also be inverted using PNP transistors such as...
A 100W full-wave single-junction transistor trigger control circuit designed for constant or variable speed control of a wire feed motor. The input control signal consists of a voltage adjusted by the master potentiometer (RPs) and a feedback voltage from potentiometer...
A useful feature of this circuit is that the frequency can be changed by modifying the capacitor value. A switch can be added to select between various frequencies.
This circuit utilizes a capacitor in conjunction with an oscillator to determine its...
This circuit utilizes two transistors to regulate the speed of a 12 V DC fan based on temperature changes. A thermistor (R1) detects the temperature. As the temperature rises, the base current of transistor Q1 (BC 547) increases, leading to...
We use cookies to enhance your experience, analyze traffic, and (if you allow) serve personalized ads.
By clicking Accept All, you agree to our use of cookies.
Learn more