<!DOCTYPE html>
<html>
<head>
<title>Google Map with Marker and Spectrogram</title>
<script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/scipy/1.7.0/signal.min.js"></script>
</head>
<body>
<div id="map"></div>
<script>
var map = new google.maps.Map(document.getElementById("map"), {
  center: {lat: 37.4419, lng: -122.1419},
  zoom: 13
});

var marker = new google.maps.Marker({
  position: {lat: 37.4419, lng: -122.1419},
  map: map
});

marker.addListener("click", function() {
  var audio = new Audio("audio.mp3");
  audio.play();

  var spectrogram = new google.visualization.Spectrogram(document.getElementById("spectrogram"));
  spectrogram.draw(audio.getFrequencyData(), audio.getSampleRate());
});
</script>
<div id="spectrogram"></div>
</body>
</html>