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Relay switching for audio - Electrical Engineering Stack ...
https://electronics.stackexchange.com/questions/102382/relay-switching-for-audio#:~:text=%20A%20relay%20in%20an%20audio%20path%20is,it%20at%20the%20moment%20it%20opens.%20More%20
"Pop" when relay closed or open. | diyAudio
https://www.diyaudio.com/community/threads/pop-when-relay-closed-or-open.316379/
The "pop" sound loud when the relay is closed (when the headphone is connected to the amplifier) , while the relay is open, the "pop"vsound is very small. Samsara said: You right. Only if the schematic is not adapted to the supply voltage, if adapted and have rational delay there will not be "PLOP" .
"pop" noise in relay volume control | diyAudio
https://www.diyaudio.com/community/threads/pop-noise-in-relay-volume-control.215210/
The DC changes with level and causes the pops. Also known as zipper noise when you rapidly change levels. It sometimes happens with some steps, not with others, that is because the effect is greatest with greatest steps. For instance, going from -15dB to -16dB may involve engaging the -16dB relay and disengaging the -8, -4, -2 and -1 dB step relay.
Relay switching for audio - Electrical Engineering Stack ...
https://electronics.stackexchange.com/questions/102382/relay-switching-for-audio
A relay in an audio path is going to cause a "pop" under two conditions: If there's a voltage across it at the moment it closes. If there's a current flowing through it at the moment it opens.
Relay based Audio 2 in, 1 out switch, how to stop click/pop?
https://forum.allaboutcircuits.com/threads/relay-based-audio-2-in-1-out-switch-how-to-stop-click-pop.161605/
If the pop is caused by different DC voltages being switched then your RC circuit should stop the pop. The value of the resistors is not critical and the values for the capacitors depend on the impedances of the inputs. If you find it lacking bass sounds compared to a direct connection then increase the capacitor values.
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