demorphus
To remove Suno artifacts around cymbals and hi-hats, first locate the problem: one hit, a repeated pattern or the whole mix. Start with the smallest useful edit. Cutting all the highs may hide a defect while dulling the voice and ambience.
Describe the sound and mark its location
Write timestamps for a sharp hi-hat burst, a watery cymbal decay or a persistent wash over the chorus. These listening descriptions help compare attempts without assuming you know the technical cause from one listen.
Replay at a comfortable level and, if possible, on another playback device. Check whether the problem occurs on a few hits or throughout the arrangement. If the whole mix distorts, investigate that broader issue before treating the cymbals alone.
Keep a local problem local
If you have an editable percussion stem, try the smallest useful adjustment there and judge it in the full mix. Changing one hit’s level is different from filtering the complete song. Keep the previous version so you can reverse a choice that disconnects the cymbal from the room sound.
Stems may contain other instruments. Check for vocal or snare leakage before processing the percussion. The stem-cleanup guide covers checks to make before recombining files.
Do not mistake a cymbal tail for a noise sample
Audacity’s Noise Reduction documentation describes relatively constant background noise and a noise-only reference sample. A cymbal decay is musical content: using it as that reference can remove material you intended to keep. Stronger reduction can also damage the remaining sound.
When trialling an EQ or repair, compare vocal consonants, snare attacks and the quiet ending alongside the harsh hit. A treatment that hides the defect but loses those details may be the wrong tradeoff for the song.
Judge listening quality before the score
Record whether the problem improved, the voice survived, percussion remains natural and ambience still works. Choose the version you prefer before reading its detection result. The audible harshness you dislike is not necessarily the same feature that a classifier uses.
To evaluate Demorphus Cleaner as well, process a copy and compare it with the targeted repair. Choose processing access for your needs and keep the output that meets your goal. For wider noise and metallic textures, start with the main artifact guide.
Prepared with AI assistance. Sources below.