Audio sensing circuit

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#1 21672329 13 Sep 2014 01:19

Anuar Khan Abu Bakar Anuar Khan Abu Bakar

Anonymous

Post #1
21672329 13 Sep 2014 01:19

Hi there,

Is there a circuit which senses the audio input if it is analogue or digital and then lights up the led accordingly?

Thanks
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#2 21672330 13 Sep 2014 03:56

John Schmitz John Schmitz

Anonymous

Post #2
21672330 13 Sep 2014 03:56

If the digital signal is DC coupled and the analog signal is AC coupled than it would be fairly easy to differentiate them and thus make a circuit that would do what you want.
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#3 21672331 13 Sep 2014 04:35

Anuar Khan Abu Bakar Anuar Khan Abu Bakar

Anonymous

Post #3
21672331 13 Sep 2014 04:35

Thanks John. I am not sure but it is an audio signal which comes out of the XLR patch panel. And we will not know if audio is present until we plug in a headphone to listen. And if it is analogue signal, I will be able to listen to the audio and if it is digital, I will not hear anything.

And i need to built a circuit to be able to do this with led mounted on the board indicating if the signal is analogue or audio.

Thanks.
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#4 21672332 20 Sep 2014 01:03

Sudheer Gupta Sudheer Gupta

Anonymous

Post #4
21672332 20 Sep 2014 01:03

Hi!

Please find the following link:
http://www.electronicshub.org/clap-switch-circuit-for-devices/

I hope this post would be more helpful for you.

-Sudheer
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#5 21672333 20 Sep 2014 01:58

Anuar Khan Abu Bakar Anuar Khan Abu Bakar

Anonymous

Post #5
21672333 20 Sep 2014 01:58

Hi Sudheer,

Thanks for the reply. I can't link it to the circuit. Sorry mate.
#6 21672334 11 May 2019 18:07

James martin James martin

Anonymous

Post #6
21672334 11 May 2019 18:07

I have same question and didn't get satisfied solution.
#7 21672335 14 May 2019 10:44

James martin James martin

Anonymous

Post #7
21672335 14 May 2019 10:44

I have same question and didn't get satisfied solution.
Any update ???
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