CODEWITHSUNDEEP
javascripthtmlaudiocontextwma
John Porter
John Porter

Reputation: 51

How to convert WMA (audio) to an array of frequencies and durations

I am recording sounds for a game on my computer, but I am only able to use the audio context to play sounds. I cannot download audio from a server, so how do I convert WMA to a playable array with audio context.

It is easy to record audio on my computer and play it back with Windows Media Player. I have set up some code for playing frequencies with different timing. But I cannot move the sound from my computer to my website.

This is what I use to play some climbing notes

<html>
    <head>
        <meta charset="utf-8">
        <title>head ache</title>
    </head>
    <body>
    <script>
    var notes = [];
    for(var i = 0; i < 8; i ++){
        notes.push([i*25+80,i/2,0.5])
    }
    for(var i = 0; i < 8; i ++){
        notes.push([i*25+100,i/2+4,0.5])
    }
    for(var i = 0; i < 8; i ++){
        notes.push([-i*25+425,i/2+8,0.5])
    }
    var play = 1;
    var audioCtx = new (window.AudioContext || window.webkitAudioContext)();
    if(play){
        for(var i = notes.length; i --;){
            if(notes[i].length<3){continue;}
            var oscillator = audioCtx.createOscillator();
            oscillator.type = 'sawtooth';
            oscillator.frequency.setValueAtTime(notes[i][0], audioCtx.currentTime);
            oscillator.connect(audioCtx.destination);
            oscillator.start(notes[i][1]);
            oscillator.stop(notes[i][1]+notes[i][2])
        }
    }
    </script>
    </body>
</html>

I am unable to move the file from my computer to my website. I should be able to play the noises when I am able to get the frequencies and durations of the WMA file.

Upvotes: 0

Views: 251

Answers (0)

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