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How to detect sound from microphone in .net


How to detect sound from microphone in .net

By : Ancil Maxwell Hoffma
Date : October 18 2020, 11:12 AM
Any of those help Please see CheckSilent method from http://alvas.net/alvas.audio,tips.aspx#tip73 example
code :


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How to listen to microphone and detect sound loudness in Delphi 7

How to listen to microphone and detect sound loudness in Delphi 7


By : user3055491
Date : March 29 2020, 07:55 AM
it fixes the issue I recommend you to look AudioLab
Can record sound using Microphone once, but cannot start microphone second time

Can record sound using Microphone once, but cannot start microphone second time


By : Oren Kislev
Date : March 29 2020, 07:55 AM
seems to work fine You might want to look into Microphone's RecordingThread here as well as re-read the page where you got that code here since the difference between the code you used and what you want to do is the code you used doesn't start and stop the microphone, it's continuously recording. A RecordingThread looks to be what you're after since you can easily call start() and stop() to get what you're after.
How to detect sound blowing/screaming using a microphone (for a proof of concept)?

How to detect sound blowing/screaming using a microphone (for a proof of concept)?


By : BarrieA
Date : March 29 2020, 07:55 AM
like below fixes the issue You can do this with the non-stable Web Audio API and getUserMedia.
On html5rocks is a short article about that feature: http://updates.html5rocks.com/2012/09/Live-Web-Audio-Input-Enabled
How to capture sound from microphone with java sound API?

How to capture sound from microphone with java sound API?


By : Ravi Prakash Kamatha
Date : March 29 2020, 07:55 AM
this one helps. Left-field suggestion.
Provide a visual rendering of each sound line, in a component along the lines of the AudioPlotPanel or a simpler RMS volume. It should not take the user too long to figure which sound line they are yodeling through. ;)
How do I interpret the audio stream from the microphone to detect a certain sound in WP7?

How do I interpret the audio stream from the microphone to detect a certain sound in WP7?


By : Gdp
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further I think this might help http://en.wikipedia.org/wiki/Pulse-code_modulation. I think the values in a way represent the offset of the mechanical part in the microphone from its middle position, but I am sure the theory and vocabulary might go really deep.
When it comes to recognizing sounds - it can also get arbitrarily complex, but a clapper might be a simple task - you basically want to detect a sudden increase in volume, which would manifest in a sharp, short-term increase of the moving-average of absolute values in the stream, so I'd put a sliding windows on the stream and keep checking with certain thresholds - one short window for the high volume threshold and two adjacent, longer and lower threshold windows to make sure there was no such noise before and after the clapper.
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