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AC vs DC coupling: What is it? – Noise Engineering
https://noiseengineering.us/blogs/loquelic-literitas-the-blog/ac-vs-dc-coupling-what-is-it
Yep, the AC-coupling circuit is a really basic highpass filter. Audio signals are high enough frequency that a super low highpass filter won’t take out anything that we care about. But why would we want to modify a signal at all? …
AC Coupling - Sound on Sound
https://www.soundonsound.com/glossary/ac-coupling
AC Coupling (sometimes also known as DC-Blocking) is an electronic engineering arrangement that allows an audio (or any other alternating) signal to be passed through a connection while simultaneously preventing any DC bias or offset voltage on …
AC coupled | Electronic Music Wiki | Fandom
https://electronicmusic.fandom.com/wiki/AC_coupled
AC coupled Edit A circuit that will not pass a DC level or offset from its input to its output. Most audio processors and amplifiers have AC coupled outputs; they will not pass DC levels, and they usually filter subsonic frequencies from the output also.
Why would I need AC coupling if audio inputs already do ...
https://electronics.stackexchange.com/questions/85990/why-would-i-need-ac-coupling-if-audio-inputs-already-do-the-job
But why would they do it if the audio input does the AC coupling itself? audio ac filter decoupling-capacitor. Share. Cite. Follow edited Jun 11 '20 at 15:10. Community Bot. 1. asked Oct 20 '13 at 22:15. privera privera. 83 1 1 silver badge 6 6 bronze badges \$\endgroup\$ 1. 1
Signal Coupling | AC Circuits | Electronics Textbook
https://www.allaboutcircuits.com/textbook/experiments/chpt-4/signal-coupling/
Now, connect the audio signal detector across the motor terminals, with the 0.047 µF capacitor in series, like this: You should be able to hear a “buzz” or “whine” in the headphones, representing the AC “noise” voltage produced by the motor as the brushes make and break contact with the rotating commutator bars.
Modular Interfacing - Sound on Sound
https://www.soundonsound.com/techniques/modular-interfacing
Most audio interfaces have what is called AC-coupled outputs, where a capacitor is used to filter out the extreme low frequencies. This is a disaster for CV, as it cannot output the sort of slow-moving or static values we need.
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