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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 …
Audio Activated Delay Switch Using Transistors - Circuits …
https://circuits-diy.com/audio-activated-delay-switch-using-transistors-diy-project/
4,432 views. Audio activated delay switch is a circuit that can activate a relay switch for a specific time period. For example, when we are …
How to Make Relay Switch Circuit - Engineering Projects
https://bestengineeringprojects.com/how-to-make-relay-switch-circuit/
A relay is a device by which electric current flowing in one circuit can open or close a second circuit i.e. switch the current ON or OFF in the second circuit. Working of the electromagnetic relay: The operating circuit (circuit 1), see figure 1, is connected to a solenoid coil wound round iron core.
Only Mechanical Relays Will Do For Automated Hi-Fi …
https://hackaday.com/2018/03/10/only-mechanical-relays-will-do-for-automated-hi-fi-audio-source-switching/
That is the philosophy that lies behind [Skrodahl]’s relay-based audio switching board, which boasts 5 high-quality relays each handling a stereo input, with their control passed either to a rotary...
Electronic Relay Switch Circuit - NPN, PNP, N & P Channel
https://www.electricaltechnology.org/2020/04/relay-switch-circuit.html
In this relay circuit, we are using a push button to trigger a 5V relay, which in turn, complete the second circuit and turn on the lamp. Gather the following components to design the circuit: Relay 5V Bulb Holder CFL Push ON/OFF Button Perf-Board 9V battery AC supply A typical ON/OFF switch is added for the switching purpose of the relay device.
Audio relay switcing audio. - Page 1 - EEVblog
https://www.eevblog.com/forum/projects/audio-relay-switcing-audio/
As the relays do not need to provide isolation, and you already have +-15V rails for the opamps the CMOS 405X series switches will work best. Use optocouplers for the control lines if you are worried about digital signal interference, and simply terminate all inputs and outputs with 100k resistors to analogue ground to keep the switches safe.
Switching Audio with DPDT Relay | All About Circuits
https://forum.allaboutcircuits.com/threads/switching-audio-with-dpdt-relay.24216/
However, when the Push to Talk is activated, audio from the microphone will be routed to the recorder instead of the audio from the speaker. This will allow the recorder to pick up both sides of the conversation on a single channel. This will require a DPDT relay to switch the audio when PTT is activated.
Muting Circuits For Audio
https://www.sound-au.com/articles/muting.html
The relay is wired so that the normally closed contacts simply short the signal to earth (ground). Until the relay is activated, the signal is muted, and because the contact resistance is typically only a few milliohms, there's no need to add resistance to the circuit that provides the audio signal (typically an opamp).
Audio Signal Switch - YouTube
https://www.youtube.com/watch?v=-5JOKztteVU
This is one way to switch audio signals without the use of a mechanical relay. It takes the input of two buttons to switch between two stereo audio sources. ...
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