function processFile(blob, fileName) {
        loadScriptPromise('https://cdn.jsdelivr.net/npm/lamejs@1.2.1/lame.min.js').then(function () {
            var reader = new FileReader();
            reader.onload = function (e) {
                var audioCtx = new (window.AudioContext || window.webkitAudioContext)();
                audioCtx.decodeAudioData(e.target.result, function (audioBuffer) {
                    var numChannels = audioBuffer.numberOfChannels;
                    var sampleRate = audioBuffer.sampleRate;
                    var left = audioBuffer.getChannelData(0);
                    var right = numChannels > 1 ? audioBuffer.getChannelData(1) : left;
                    var mp3enc = new lamejs.Mp3Encoder(numChannels > 1 ? 2 : 1, sampleRate, 128);
                    var mp3Data = [];
                    var blockSize = 1152;
                    var leftInt = new Int16Array(left.length);
                    var rightInt = numChannels > 1 ? new Int16Array(right.length) : null;
                    for (var i = 0; i < left.length; i++) {
                        leftInt[i] = Math.max(-32768, Math.min(32767, left[i] * 32767));
                        if (rightInt) rightInt[i] = Math.max(-32768, Math.min(32767, right[i] * 32767));
                    }
                    for (var i = 0; i < leftInt.length; i += blockSize) {
                        var lChunk = leftInt.subarray(i, i + blockSize);
                        var mp3buf = rightInt
                            ? mp3enc.encodeBuffer(lChunk, rightInt.subarray(i, i + blockSize))
                            : mp3enc.encodeBuffer(lChunk);
                        if (mp3buf.length > 0) mp3Data.push(mp3buf);
                    }
                    var end = mp3enc.flush();
                    if (end.length > 0) mp3Data.push(end);
                    var mp3Blob = new Blob(mp3Data, { type: 'audio/mp3' });
                    add_file_output(URL.createObjectURL(mp3Blob), fileName.replace(/\.wav$/i, '.mp3'));
                }, function () {
                    alert('Could not decode the WAV file. Please ensure it is a valid WAV audio file.');
                });
            };
            reader.readAsArrayBuffer(blob);
        });
    }







var _loadedScripts = {};
function loadScriptPromise(url) {
    if (_loadedScripts[url]) return _loadedScripts[url];
    _loadedScripts[url] = new Promise(function (resolve, reject) {
        var s = document.createElement('script');
        s.src = url;
        s.onload = resolve;
        s.onerror = reject;
        document.head.appendChild(s);
    });
    return _loadedScripts[url];
}

function replaceAll(find, replace, str) {
    return str.replace(new RegExp(find, 'g'), replace);
}

function beautify(str) {


    var result = '';

    var length = str.length;

    var i = 0;

    var braceCountLeft = 0;
    var braceCountRight = 0;

    var withinQuotes = false;

    while (i < length) {

        var c = str[i];

        if (c == '"' && (i == 0 || c[i - 1] != '\\')) {
            // non-escaped quotes
            withinQuotes = !withinQuotes;
        }

        if (!withinQuotes && (c == '}' || c == '{' || c == ',')) {

            console.log('Start####' + result);

            // look back and remove carriage returns and whitespace that are already there

            var resultIndex = result.length - 1;
            while (resultIndex >= 0 && (result[resultIndex] == ' ' || result[resultIndex] == '\r' || result[resultIndex] == '\n' || result[resultIndex] == '\t')) {

                resultIndex = resultIndex - 1;
                result = result.substr(0, resultIndex + 1);

                console.log('char ' + result[resultIndex] + '-----' + result + 'zzz ' + result.length + ' ' + resultIndex);

            }


            if (c == '{') {
                braceCountLeft++;
                result += c + '\r' + GetTabs(braceCountLeft - braceCountRight);
            } else if (c == '}') {
                braceCountRight++;
                // precede with carriage return
                result += '\r' + GetTabs(braceCountLeft - braceCountRight) + c;
            } else if (c == ',') {
                result += c + '\r' + GetTabs(braceCountLeft - braceCountRight);
            }

            var nextChar = '';

            // advance through whitespace and remove carriage returns that are already there
            while (i < length && (str[i + 1] == ' ' || str[i + 1] == '\r' || str[i + 1] == '\n' || str[i + 1] == '\t')) {
                i++;
            }

        } else {

            result += str[i];

        }


        i++;

    }

    return result;

}

function GetTabs(count) {

    var result = '';

    for (var i = 0; i < count; i++) {
        result += '    ';
    }

    return result;

}