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Line signal to microphone input - Audio | Video | Circuits
https://www.epanorama.net/circuits/line_to_mic.html#:~:text=Professional%20audio%20audio%20line%20level%20%28%2B4dBu%29%20to%20microphone,100%20ohm%20Circuit%20technical%20data%3A%20Attenuation%3A%2050%20dB
How to Build a Simple Attenuator Circuit
http://www.learningaboutelectronics.com/Articles/Attenuator-circuit.php
Attenuator circuits are very useful for whenever we need to decrease the strength of signals. Think of applications such as volume control. If the music is too loud, then we need to attenuate them in order to get less volume. The music comes to our ears through audio signals. We then would need an attenuator to decrease the level of these audio signals, which translates into …
Line signal to microphone input - Audio | Video | Circuits
https://www.epanorama.net/circuits/line_to_mic.html
Consumer audio line (-10dBu) level to microphone matching can be done using a "40 dB L-pad attenuator". This circuit is indeed quite simple: +Line level input -----R1----+-- +Mic level output | +----R2----+ | Ground (input)----+----- Ground (output) R1 = 10 kohm R2 = 100 ohm Circuit technical data: Attenuation: 40 dB Input impedance: 10 kohm Output impedance: 100 ohm
Homemade RCA Attenuator : 5 Steps (with Pictures ...
https://www.instructables.com/Homemade-RCA-Attenuator/
Homemade RCA Attenuator: This project arose from the fact that I had too much gain in my audio system, and I needed a practical solution without modifying the PCB circuit. The problem can be solved using an RCA (in-line) attenuator, but since a new one can be quite expensiv…
Attenuators | Amplifiers and Active Devices | Electronics ...
https://www.allaboutcircuits.com/textbook/semiconductors/chpt-1/attenuators/
Summary: Attenuators. An attenuator reduces an input signal to a lower level. The amount of attenuation is specified in decibels (dB). Decibel values are additive for cascaded attenuator sections. dB from power ratio: dB = 10 log10(PI / PO) dB from voltage ratio: dB = 20 log10(VI / VO) T and Π section attenuators are the most common circuit configurations.
L-pad Attenuator - Circuits Geek
https://circuitsgeek.com/tutorials/l-pad-attenuator/
L-pad attenuators are commonly used in audio electronics to reduce the audio signal produced by an amplifier delivered to a speaker or headphones. However, one of the main disadvantages of the “L-pad attenuator” is that because the L-pad attenuator is a constant impedance device, at low power settings the attenuator converts all of the energy not sent to the load into heat which …
Audio Attenuator circuit - Page 1 - EEVblog
https://eevblog.com/forum/beginners/audio-attenuator-circuit/
The audio signals are going through a fixed attenuator where roughly 20% of the voltage goes to the TV. Apparently the source puts out a pretty "hot" audio signal and the circuit knocks it down to a more conventional audio level for the TV.
Muting Transistor Attenuator Circuits and the 2SC2878 ...
https://www.electroschematics.com/muting-transistor-attenuator-circuits-2sc2878/
In amplifiers and pre-amplifiers, the muting circuit is intended to prevent the popping of loudspeakers when power is applied. In mixers and audio line & level equipment, the muting circuit may also be employed to select /deselect various input channels –such must be done cleanly or quietly.
audio attenuator headphone to line | Electronics Forums
https://www.electronicspoint.com/forums/threads/audio-attenuator-headphone-to-line.223524/
The line input on the recorder will likely be around 47k ohms. Just use two 1k resistors. If that doesn't give enough attenuation, double up on the 'top' resistor to say 2k2. Only thing that might make all of that wrong, is if the input that you are trying to use on the recorder, is not a 'line level' input. I say that
impedance - Circuit to Convert Line Level to Mic Level ...
https://electronics.stackexchange.com/questions/29564/circuit-to-convert-line-level-to-mic-level
How much should you attenuate the signal? It depends on the typical line levels you'll get from your equipment. According to one test, typical microphone voltage levels are in the region of a couple of 10s of millivolts. Line levels are probably in the region of a volt. So you'll need something like a 100:1 reduction in signal level.
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