Fixing the Watery Edge in an AI-Generated Song

The song did not sound broken at first. It had a gentle guitar, a soft vocal, and the sort of reverb that tries to convince you a room exists somewhere behind the pixels. Then I heard the watery edge around the chorus, that faint underwater wobble that makes an AI-generated track feel like it was recorded through a glass of nervous mineral water. I tested the cleanup with sunofix.app because the song was close enough to annoy me.

That is the cruel category: not bad, just almost believable. A truly bad AI song is easy to dismiss. This one had a mood. It had a melody I caught myself humming while washing a cup. But every time the vocal rose, the edges softened into a phasey film, and the guitar sounded as if it had been left overnight in a bathtub.

The artifact was not one single noise

Calling it watery is convenient, but it was really a group of small problems agreeing to be irritating. The vocal had a phasey shimmer on held notes. The acoustic guitar lost its pick attack and turned into a wet cardboard texture. The reverb tail smeared into the next phrase, so the song never quite exhaled. Above it all sat brittle highs, thin as cheap foil.

The strangest part was that the artifact moved. On one line it clung to the vocal. On the next it hid in the reverb. Then it appeared around the guitar, like a stain returning after paint dries. That is why simple EQ rarely solves these tracks. You can pull down the top end and still have the underwater feeling. You can brighten the guitar and make the glassiness worse. AI artifacts are annoyingly social.

I listened in short loops, which is not a dignified activity but is often necessary. Three seconds before the chorus, the room illusion still worked. Two seconds into the chorus, the whole image bent slightly. Not enough to sound dramatic. Enough to make the singer feel unreal.

What cleanup could and could not fix

The cleanup helped most when it tightened the edges rather than trying to reinvent the recording. The vocal stopped waving at the end of phrases. The guitar regained a little dry contact. The reverb still had that generated softness, but it no longer spread across the track like fog from an overcommitted machine.

I do not want an AI song cleaner to bleach everything. Some grain is useful. Some room illusion, even fake room illusion, gives a track a place to stand. The danger is overcorrection. Remove too much and the song becomes sterile, like a voice memo polished into a hospital corridor. This track needed less water, not less life.

After the pass, the chorus became easier to follow. The lead vocal had a more stable center. The guitar stopped sounding like it was dissolving every time the vocal entered. The brittle highs relaxed, and the song felt less synthetic without pretending to be handmade. That distinction matters to me. I do not need to be lied to beautifully; I just need the file to stop confessing its machinery every five seconds.

The ordinary playback test

I played the cleaned version on earbuds first, because earbuds are merciless in a petty way. The watery edge was still faintly there if I hunted for it, but it no longer ran the song. On small speakers, the guitar felt more like a guitar and less like a memory of one. In the car, the vocal stayed forward instead of becoming a shiny ghost above the dashboard.

That was the moment I trusted the improvement. Not because the song became perfect, but because I stopped monitoring the artifact. Before cleanup, I was listening like a technician with a grudge. After cleanup, I was listening like a person who might keep the chorus if nobody asked too many questions.

The track still had AI tells. The phrasing was a little too smooth, the emotional shape a little too well behaved. But the watery edge had stopped making everything feel synthetic. There was enough grip in the vocal, enough texture in the guitar, enough space between phrases to let the song act normal.

I like cleanup best when it returns attention to the music without staging a parade. This was that kind of repair. The song did not become more impressive. It became less suspicious. For an AI-generated track with a good melody and a damp little halo around every important note, that is a very practical victory.

I kept the original file beside it as a reminder, because the difference was easy to forget once the irritation was gone. That is the odd reward of artifact removal: success can sound uneventful. The guitar simply stopped melting at the edges. The vocal stopped leaning sideways. The reverb behaved like atmosphere instead of evidence. Nothing announced itself as repaired, which, for this kind of synthetic dampness, was exactly the point.