The buzz
A faint 200 Hz hum under everything, from the decoder’s repeating 240-sample grid. We found it in 11 of 12 Suno songs we measured. Sunscreen takes it out only where it’s there.
Sunscreen for your Suno songs.
Takes out the buzz and haze, brings back the width and air, and masters for streaming. On your Mac, in about a minute a song.
Coming soon to the Mac App Store
For macOS 14 or later, on Apple silicon and Intel Macs.
Hear it for yourself
Twenty seconds of Glass Hearts & Gasoline, made with Suno. Press play, then flip between the original and Sunscreen’s version. Levels are matched, so you hear the difference, not the volume.
Press B to switch
10 kHz1 kHz100 Hz - Taken out: buzz and haze
- Put back: tone and air
Why Suno songs need it
Suno’s songs come out of an audio decoder, and it leaves fingerprints. You may not notice them on laptop speakers. On good headphones, in a car, or next to a pro master, you will.
The haze
A fizzy, hiss-like layer in the highs, plainest in quiet moments and fades. Sunscreen clears it, and leaves it alone where the music already covers it, so nothing sounds scrubbed.
The squeeze
The stereo highs get pulled into the middle and the top end stops short, so songs sound narrow and a bit dull. Sunscreen rebuilds the width and adds back the air.
How it works
Every song goes through the same short routine, all on your Mac. Each step is a checkbox in the sidebar, so you can switch off anything you don’t want.
Read it like the back of the bottle.
Sound Facts
| Active ingredients | Purpose |
|---|---|
| Debuzz 200 Hz grid | Removes the decoder buzz |
| Denoise masking-aware | Clears the haze you’d actually hear |
| Smooth | Steadies shimmering, fluttering highs |
| Widen | Rebuilds the stereo highs |
| Excite | Adds air above Suno’s cutoff |
| Match | Tilts the tone toward commercial masters, or a song you choose |
| Master −1 dBTP | Sets streaming loudness with a true-peak limiter |
Uses
Makes songs made with Suno sound finished, ready to share or send to your distributor.
Directions
- Drop songs, or whole folders of them, on the window. MP3, WAV, FLAC or M4A.
- Pick a preset (Polish, Release or Clean only), or tick the steps yourself. Drop in a song you love under Sound like to tilt the tone toward it.
- When a song is done, click it to play. Press ⌘B to flip between before and after.
- Open the song’s folder and take the finished file.
Warnings
- Will not fix a weak chorus.
- “Very loud” is very loud. Check it on more than one pair of speakers.
- If a step doesn’t suit a song, untick it and run it again. Your originals are never changed.
Other information
Runs entirely on your Mac. Several songs at once, about a minute each. Saves Apple Lossless or AAC with the original’s title, artist, artwork and lyrics, plus the WAV of every step.
Inactive ingredients
None. No account, no upload, no subscription, no tracking.
See exactly what changed
Click any finished song and Sunscreen plays it with three spectrograms: before, after, and a map of what changed, in the same blue and orange as above. A live spectrum follows along as it plays.
Switch versions mid-phrase with ⌘B. Levels stay matched, so louder never fools your ears.
Ready to release
Pick a loudness target and Sunscreen masters to it, with a limiter that keeps true peaks under −1 dB so nothing clips after streaming services re-encode it.
- −16LUFS Apple Music
- −14LUFS Spotify & YouTube
- −11LUFS Loud
- −9LUFS Very loud
The finished song is saved as Apple Lossless or AAC, tagged with the title, artist, album, artwork and lyrics from your Suno download, so it looks right in Music and in your distributor’s upload form.
Your songs stay on your Mac.
Sunscreen processes everything locally. Your songs are never uploaded, and the app collects no data. No account, no analytics.
Questions?
Something sound off, or a song that won’t process? Get in touch.
support@xenocode.co.jpInclude your macOS version, the Sunscreen version, and what happened. If it’s about one song, the Report.txt in its folder helps a lot.
Does it only work with Suno?
It’s tuned for Suno’s fingerprints, but any MP3, WAV, FLAC or M4A goes in. The buzz removal only acts when it finds the 200 Hz grid, so on other music it steps aside and the rest works as a gentle clean-up and master.
Where do the finished songs go?
To ~/Music/Sunscreen by default, one folder per song. You can choose another folder in the welcome screens or at the bottom of the sidebar. Each folder holds the tagged .m4a, a WAV of every step for comparing, the noise that was removed, a report and a spectrogram.
Which settings should I use?
Start with the Polish preset: everything on, mastered for Spotify & YouTube (−14). That suits most songs. If one sounds too bright, untick “Add air” or “Match tone” and run it again.
How long does it take?
About a minute for a typical song on a recent Mac. Sunscreen runs up to three songs at once, depending on your Mac’s memory, and keeps going while you do something else.
Can I upload the result to Spotify or Apple Music?
Sunscreen gets the sound ready. Whether you can release a song depends on your Suno plan and its terms, so check those first.