A finished bounce can support more than one kind of “music video,” and the two I reach for most often are not interchangeable. One picture is driven by the audio buffer. The other is driven by the artwork. Mixing those jobs in a single template usually produces a clip that does neither well.
I keep both tools next to the project in Doremi. This is a comparison, not a review scorecard.
What a spectrum visualizer is actually showing
A classic audio visualizer plots energy over time: bars, rings, or a waveform. In the browser, that data has a public contract. The W3C Web Audio API defines AnalyserNode as a node that passes audio through unchanged while exposing real-time frequency-domain and time-domain analysis—getByteFrequencyData() and getByteTimeDomainData() are the methods most tutorials start with.
That is the right mental model for the Music Visualizer: the motion should come from the track, then you layer a logo, a title, and a 16:9 or 9:16 frame around it. I use this when the post is “here is the song,” especially a YouTube upload that would otherwise sit under a still image.
What a cover player is actually showing
An album-cover player is a different pipeline. The hero is the artwork: a spinning record, a CD case, a hand-drawn deck, or a Now Playing card. Audio-reactive motion can still be present (a groove that pulses, a progress bar that advances), but the composition is built to keep the cover readable. The Cover Player is the tool I open when the post is “here is the release object”—a Stories clip on launch day, or a consistent series card for a playlist.
Lyrics belong in this family when the viewer might watch without sound. They are optional decoration on a spectrum tunnel, and almost the point of a cover card.
A practical split
| Question | Lean visualizer | Lean cover player |
|---|---|---|
| What should the eye track? | The beat / spectrum | The artwork |
| Typical post | Full-song YouTube, weekly beat dump | Release-day Story, playlist series |
| Lyrics | Optional | Useful when the clip must be readable silent |
| Risk if you pick wrong | Cover gets lost in the effect | A quiet track looks static because the art barely moves |
YouTube’s upload help is enough of a reminder that the file you send is already a video, with its own dimensions, not a poster with audio taped on. I export the type that matches the post, then stop. The comparison is only there so I do not reuse last week’s template out of habit.
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