Background noise suppression - Storyline 360

I am not sure if this is possible in software, but I have been asked to try and find a solution.

We need the ability to turn off background noise (particularly music) in the videos in our courses.

Option 1 - Two different videos - switch between (filesize)

Option 2 - Background music on slide - switch off (buffering mistiming?)

Either of these could work, but have drawbacks.

Option 3 - Could I use JavaScript to noise supress successfully?

This is what I have so far (Copilot) but it sort of equally take from both sides and I have tried adjusting settings to no avail.

var player = GetPlayer(); // Ensure this function is defined
var audioContext = new (window.AudioContext || window.webkitAudioContext)();
var video = document.querySelector('video'); // Target the video element
if (video) {
    var source = audioContext.createMediaElementSource(video);
    var gainNode = audioContext.createGain();

    // Create a high-pass filter to remove low-frequency music elements
    var highPassFilter = audioContext.createBiquadFilter();
    highPassFilter.type = 'highpass';
    highPassFilter.frequency.value = 300; // Adjust frequency to target lower background noise
    // Create a low-pass filter to remove high-frequency music elements
    var lowPassFilter = audioContext.createBiquadFilter();
    lowPassFilter.type = 'lowpass';
    lowPassFilter.frequency.value = 3000; // Adjust frequency to target higher background noise

    // Create notch filters to target specific music frequencies
    var notchFilter1 = audioContext.createBiquadFilter();
    notchFilter1.type = 'notch';
    notchFilter1.frequency.value = 500; // Example frequency
    notchFilter1.Q.value = 10; // Quality factor to adjust the bandwidth

    var notchFilter2 = audioContext.createBiquadFilter();
    notchFilter2.type = 'notch';
    notchFilter2.frequency.value = 1000; // Example frequency
    notchFilter2.Q.value = 10; // Quality factor to adjust the bandwidth

    var notchFilter3 = audioContext.createBiquadFilter();
    notchFilter3.type = 'notch';
    notchFilter3.frequency.value = 2000; // Example frequency
    notchFilter3.Q.value = 10; // Quality factor to adjust the bandwidth

    // Connect the filters in series
    source.connect(highPassFilter);
    highPassFilter.connect(notchFilter1);
    notchFilter1.connect(notchFilter2);
    notchFilter2.connect(notchFilter3);
    notchFilter3.connect(lowPassFilter);
    lowPassFilter.connect(gainNode);
    gainNode.connect(audioContext.destination);

    gainNode.gain.value = 1.0; // Adjust gain to maintain overall balance
} else {
    console.error('Video element not found or does not have an audio track.');
}

Any advice on isolating music only would be gratefully received or if there is another way to do this I am all ears.

Thanks for your time.