Need help in newbie timer project?

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Hello everyone.
I'm just a newbie in coding and I would like to ask for some of your help on my little project. I'm currently trying to make a simple adjustable 99900 milliseconds countdown timer that is trigger by any sound (strong enough) it pick-up from an android phone's microphone and plays a SCARY_SOUND.mp3 located inside the phone after the timer reaches zero.
This project will be running on my android phone..

NEEDED HELP IN THE FOLLOWING:
1.) 99900 milliseconds countdown timer
2.) way to access and used an android phone's microphone
3.) retrieve audio files in phone's memory

I really appreciate any help I can get...
Thank you everyone...

What I have tried:

HTML

<html>
<head>

<style>

 div {
	width:auto;
	height:auto;
	-webkit-align-self: center; /* Safari 7.0+ */
	align-self: center;	}
	
 .Add10000, .Add1000, .Add100, 
 .Subtract10000, .Subtract1000, .Subtract100 {
	background-color: blue;
	color: white;
	font-size: 89.43px;}

</style>	

<script>

</script>
</head>

<body>

<div>

        <table table;" cellspacing="0" cellpadding="0" border="1">
            <tbody>
			<tr>
                <td><button class="Add10000">+</button></td>
                <td><button class="Add1000">+</button></td>
                <td><button class="Add100">+</button></td>
				<td class="Addonemilli"></td>
            </tr>
            <tr>
                <td><div id="tenthousand" style="font-size: 271px;">0</div></td>
                <td><div id="onethousand" style="font-size: 271px;">0</div></td>
                <td><div id="onehundred" style="font-size: 271px;">0</div></td>
                <td><div id="tensones" style="font-size: 89.43px;">00</div></td>
				
            </tr>
            <tr>
                <td><button class="Subtract10000">-</button></td>
                <td><button class="Subtract1000">-</button></td>
                <td><button class="Subtract100">-</button></td>
				<td class="subtractonemili"></td>
            </tr>
            
        </tbody></table>
		
		<table>
        <tbody><tr>
		<tr>
                <td colspan="1" style="padding-right:3px;" align="right">
                    <button id="Start" style="font-size: 48px;">Start</button>
					<button id="Reset" style="font-size: 48px;">Reset</button>
					<button id="Stop" style="font-size: 48px;">Sound Test</button>
                </td>
            </tr>
			</tbody></table>
		
		</div>

</body>
		
</html>

Posted 26-Jul-19 18:18pm

ionman001

Updated 26-Jul-19 21:37pm

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Comments

Dave Kreskowiak 27-Jul-19 9:22am

So you want to play a sound almost 100 seconds after you hear a sound loud enough to start the timer?

1 solution

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Richard MacCutchan · Answer 1 · 2019-07-26T21:38:00

Solution 1

Start here: CountDownTimer | Android Developers[^].

Posted 26-Jul-19 21:38pm

Richard MacCutchan