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Dynamic Noise Reduction Circuit (DNR)
https://www.petervis.com/electronics%20guides/dynamic%20noise%20reduction/dynamic%20noise%20reduction.html#:~:text=Dynamic%20Noise%20Reduction%20Circuit%20%28DNR%29%20Dynamic%20Noise%20Reduction,format%20is%20usually%20prone%20to%20such%20noise%20issues.
Stereo Noise Reduction Circuit - ElectroSchematics.com
https://www.electroschematics.com/noise-reduction-circuit-diagram/
Received by Email. The noise reduction circuit is based on the observation that noise is always disturbing in intervals when music stops. It will attenuate the signal output by about 45 dB, when the musical signal input is null or very weak. If the musical signal begins to increase, the attenuation will decrease proportionally reaching the value of 0 dB during normal or strong …
Dynamic Noise Reduction Circuit (DNR)
https://www.petervis.com/electronics%20guides/dynamic%20noise%20reduction/dynamic%20noise%20reduction.html
Dynamic Noise Reduction (DNR) is a method of removing noise from an audio signal, because any media that stores signals in analogue format is usually prone to such noise issues. An audio magnetic tape that stores data on grains of magnetic particles may exhibit noise after a few years. This noise may be due to the tape wearing out or perhaps damage due to heat, which …
Reducing noise in elementary audio circuit - Electrical ...
https://electronics.stackexchange.com/questions/21834/reducing-noise-in-elementary-audio-circuit
Either using the control on the electronic piano or by using the pot in your circuit. If the noise goes away then you can assume that the problem is either with the signal level on the input, or that you're asking the amp to put out more than the rated 3.5 watts. ... Reducing noise in audio circuit (optical pickup + op amp) 5. Reducing noise in ...
Understanding how to reduce noise in an electrical circuit
https://www.analogictips.com/tips-electrical-noise-reduction-faq/
Even without enclosing a circuit board a close ground plane helps reduce the pickup of radiated interference in sensitive, high impedance parts of a circuit. Conducted noise can be similar to radiated noise i.e. systematic but enters your circuitry by a different route – the wires/connections into your circuitry.
Noise Control Circuits - Radio receivers - Amateur Radio ...
https://www.radioexperimenter.us/radio-receivers/noise-control-circuits.html
Speaker Noise Reduction Circuit Add on VE3VDC
http://hamuniverse.com/speakernoisecircuit.html
Solder one end of the resistor to the speaker connection where you took off the wire. Then solder the wire you took off the speaker to the other end of the resistor. Tuck the parts down out of the way, making sure they don't touch the speaker itself as this would cause a buzzing sound at louder volumes.
Simple circuits reduce regulator noise floor - EDN
https://www.edn.com/simple-circuits-reduce-regulator-noise-floor/
The active regulator of Figure 3 works by sensing any noise at the input; transistor Q3 then amplifies and inverts the noise and subtracts it by adding an equal and opposite current across resistor R4. Thus in theory the noise reduction is perfect, but in practice greater than 40 dB noise reduction can be achieved.
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