Tone dialing
30 points Easy

At 1pm I called my uncle who was 64 years old 10 months ago, but I heard only that. Later I started thinking about the 24 hour clock.

I hope you will help me solve this problem

you_know_what_to_do.wav
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Discussion

What if the user is deaf? I would not be able to solve this without some help as I am deaf

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Very nice Challenge! It's something new!

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It is called "DMTF", stands for Dual Tone Multi Frequency

for newbie, here is the step: 1. decode the file here http://dialabc.com/sound/detect/ 2. you get the number, so listen again the file to group the number 3. then, convert that decimal number to ascii character here https://onlineasciitools.com/convert-decimal-to-ascii

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delete it, let people think

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What a spoiler... You could've at least provided source to a Wikipedia article, and not the entire objective flow of solving the problem.

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How to convert numbers to text any one help??

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search for DTMF

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Guys read about dial tone and DTMF decoding, search online tools or use git hub tools to extract numbers from the the .wav file. Listen how numbers are being typed, its important. Then try to decode numbers. Thanks to that challenge I've learned about DTMF and how to it works. I've also learned how to write python script for decoding these numbers.

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