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Category: Audio Circuits / Audio Mixers This circuit is also crossed to: , Stereo Circuits Views: 5475 Rank: 0 This circuit is useful for removing ground loop hum on a remote line level audio signal line. It can be used to to connect a computer sound card to a stereo amplifier`s line input. Other uses include tapping into a line level signal for powering a remote amplifier, and removing common mode ground interference on 12 Volt audio equipment such as a car stereo. The circuit can be used in mono applications by simply ignoring the second channel.Connections: L and R RCA Jacks, stereo 3.5mm jacks Operating voltage: 1V P-P nominal (line level audio) Input Impedance: 10K ohms Output Impedance: 10K ohms Frequency response: untested L-R Channel isolation: untested Theory The audio signal is visit page. Connections: L and R RCA Jacks, stereo 3.5mm jacks Operating voltage: 1V P-P nominal (line level audio) Input Impedance: 10K ohms Output Impedance: 10K ohms Frequency response: untested L-R Channel isolation: untested Theory The audio signal is http://english.cxem.net/amplifier/amplifier35.php
Related circuits Low Noise 4 Channel Guitar Mixer Circuit ICl-a, ICl-b, IC2-a, and IC2-b all function with a gain of about 19. Their outputs are mixed via the level-control pots and the resulting signal amplified by IC3-a and fed to tone-control stage IC3-b. Using two op amps, this circuit produces a full-wave rectified version of the input signal. Op amp IC1 invert This project is probably the most ambitious so far, and can be expected to be very expensive. On the positive side, it is also capable of excellent performance, and can be tailored to suit your exact specifications. There are several different input modules in the series, the first being the... Audio input selector circuit (4416 CMOS) CMOS switches are used directly to select the entries in the audio circuits, it can introduce unacceptable levels of distortion, but if the switch is included in the feedback network of an op amp, the distortion due to the switch may be virtually eliminated. The circuit uses a CMOS switch 4416,... This project is a 3 or more lines mixer. For more than 3 inputs you can repeat the input parts (P=10K R=22K). It powered with 9Vdc. 2 CD-ROM drives to one soundcard The PC soundcards are typically designed to accept the audio signal only from one CD-ROM drive. Even if the soundcards have many types of CD-ROM audio input connectors those are just wired together and are designed to be used so that there is only one sound input in use at one time. Two or more signals can be switched and/or mixed without annoyingclicks by using FETs Four (or more) inputs can be mixed and produce stereo output. Gain of each stage can be boosted by adding RX, but it should be kept below 50 (RX above 2 K) to avoid poor frequency, response. If more than four stages are used, decrease RXto 6 K for six inputs, or 4 K for eight inputs DJkittv get indepth with the Pioneer DJ DJM-750 MIXER
Color Organ (Old Skool Music Visualizer)
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