如何使用从音频上下文创建的分析器来检测播放的声音是否可听

首先，我将描述我的问题，我正在从随机歌曲创建一个自动播放列表，其中一些歌曲在歌曲结束时有 10-15 秒的静音时间，我试图实现的是从分析器中检测歌曲何时静音 5 秒并采取行动。

到目前为止，我有这个：

var context, analyser, source, audio;
context = new (window.AudioContext || window.webkitAudioContext)();
analyser = context.createAnalyser();
audio = new Audio();
source = context.createMediaElementSource(audio)
source.connect(analyser);
analyser.connect(context.destination);
var playNext = function() {
    var pickedSong;
    // chooses a song from an api with several 
    // thousands of songs and store it in pickedSong
    audio.src = pickedSong;
    audio.play();
}
audio.addEventListener('ended', playNext);
playNext();

我知道答案在分析仪的某个地方，但我没有发现从它返回的数据有任何连贯性。

我可以做这样的事情：

var frequencies = new Float32Array(analyser.frequencyBinCount);
analyser.getFloatFrequencyData(frequencies);

频率 VaR 将包含 2048 个键，每个键都有一个随机（对我来说）数字（-48.11、-55、-67 等），这些数字是否意味着与播放的感知声音有关？，我如何检测它是否足够低以至于人们会认为没有任何东西在播放。

对于检测，我主要想要这样的东西：

var isInSilence = function(){
    return !audible;
}
var tries = 0;
var checker = function() {
    tries = isInSilence() ? tries + 1 : 0;
    if(tries >= 5) playNext();
    setTimeout(checker, 1000);
}
checker();

唯一缺少的部分是检测歌曲当前是否静音，任何帮助将不胜感激。

编辑：

根据威廉的回答，我设法通过这样做来解决它：

var context, compressor, gain, source, audio;
context = new (window.AudioContext || window.webkitAudioContext)();
compressor = context.createDynamicsCompressor();
gain = context.createGain();
audio = new Audio();
source = context.createMediaElementSource(audio)
// Connecting source directly
source.connect(context.destination);
// Connecting source the the compresor -> muted gain
source.connect(compressor);
compressor.connect(gain);
gain.connect(context.destination);
gain.gain.value = 0; // muting the gain
compressor.threshold.value = -100;
var playNext = function() {
    var pickedSong;
    // chooses a song from an api with several 
    // thousands of songs and store it in pickedSong
    audio.src = pickedSong;
    audio.play();
}
audio.addEventListener('ended', playNext);
playNext();
var isInSilence = function(){
    return compressor.reduction.value >= -50;
}
var tries = 0;
var checker = function() {
    tries = isInSilence() ? tries + 1 : 0;
    if(tries >= 5) playNext();
    setTimeout(checker, 1000);
}
checker();