A generated track can sound great on first listen and then fall flat next to a commercial song. Very often the problem is in the drums and the low end: the kick is loud but doesn't thump, the snare is a soft smudge rather than a crack, and the bass blurs into the kick so neither one lands. This guide walks through a careful, step-by-step way to put the punch back: split the track into stems, shape the drum transients, keep the kick and bass centred in mono, and use gentle compression to hold the bass steady. Then we check it all by ear.
A quick note first: we're one human songwriter and Petunia, our AI collaborator. This is general mixing advice, not a set of magic numbers. Every generation is different, so treat every setting below as a starting point and let your ears make the final call.
Why Generated Drums Lose Their Punch
Punch mostly lives in the transient, the first few milliseconds of a hit, and in how quickly that hit gets out of the way of the next one. When drums, bass and everything else arrive as one stereo mix, the attack of each hit is often softened and the tail can run on into the next beat. Jack Righteous, who writes regularly about finishing AI music, puts it well: a sound can feel "too soft, too sharp, too smeared or too long" even when its average level is fine. His advice is to work out whether the problem is the attack or the sustain before changing either, and not to reach for a transient shaper just because a preset says "punch".
That's the mindset for this whole guide. Turning the drums up rarely fixes it. A kick that's already loud but feels soft usually needs better attack definition or less masking from the bass, not more level.
Step by Step: Get the Drums and Bass on Their Own
Step 1 — Export stems. You can't shape a kick drum properly while it's glued to the vocals and guitars. Suno Studio's Stems panel can split a song into parts such as vocals, drums and bass, and the Export menu offers a "Multitrack" option that downloads every track in your Studio session as separate stems. Suno's help pages say all Studio audio exports come as WAV files. Check your clip's tempo, transpose and speed settings before exporting, because they change the exported audio. If you use another tool, any decent stem separator will do; just export at the same length and start point so the stems line up in your DAW.
Step 2 — Set up a fair comparison. Load the stems into your DAW, set them to roughly the same balance as the original mix and bounce a quick reference. Keep the original stereo mix on a muted track too. Every change from here gets compared at matched loudness, because louder almost always sounds "better" for a few seconds and fools you.
Step 3 — Listen for the real problem. Solo the drum stem, then play it against the bass. Ask three questions: does the kick have a clear click or thud at the front? Does the snare crack or just swell? Do bass notes run into the next kick? Jack Righteous suggests fixing from the least destructive move to the most: choose a better take or section, fix the balance, adjust timing and note length, then compression, then transient shaping, and only then layering or replacing a sound. Write down which problem you're actually hearing before you touch a plugin.
Step by Step: Shape the Transients
Step 4 — Add a transient shaper to the drum stem. Most transient shapers have two main controls: attack (the front of each hit) and sustain (the tail). iZotope's guide describes the basic "punch" move as slightly increasing the attack and reducing the sustain. Start small: a modest attack boost and a small sustain cut, then bypass and compare. If the stem has a washy room sound baked in, reducing sustain also helps tidy it up.
Step 5 — Treat the kick and snare differently if you can. If your separator gives you a single drum stem, you can still duplicate it and use EQ to focus one copy on the kick and the other on the snare. In a MusicRadar walkthrough, the kick got roughly half attack and sustain pulled right down, which tightened it but pushed up some boxy mids, so they cut a narrow EQ notch around 130 Hz. On the snare they did the opposite: eased the initial peak back and raised the sustain for more body. That's a useful reminder that "punchy" doesn't always mean "more attack".
Step 6 — Re-match the level. Transient shaping changes how loud a stem seems. MusicRadar's tip is to bring the output back to the same loudness as the unprocessed signal before you judge it. If the shaped version only wins when it's louder, it hasn't really won.
Step by Step: Control the Low End
Step 7 — Keep the kick and bass centred in mono. Stereo width in the very low end usually makes a mix sound vaguer, not bigger, and can cause trouble on mono speakers and phones. Armada Music's guide recommends keeping both the kick and the bass mono below about 120 Hz, which is where most of the low-end weight sits. A simple way to do this is a mid/side EQ on the bass stem with a steep low-cut on the side signal at around 120 Hz. Many DAWs also have a utility or imager plugin with a "bass mono" setting that does the same job. Keep the kick fully mono.
Step 8 — Compress the bass gently. iZotope's bass compression guide names 2:1 to 4:1 as common ratios. For a smooth, even bass, it suggests a medium-fast attack, a slow release and a relatively high threshold. For a punchier bass, a slower attack, faster release and lower threshold. Our habit is to start at 2:1, pull the threshold down until you can clearly hear it working, set the attack and release by ear, then back the threshold off until the compressor is only catching the louder notes. If your compressor has a sidechain filter, iZotope suggests filtering the lows out of the detector so the deepest notes don't trigger it unevenly; the bass itself keeps its weight.
Step 9 — Give the kick room. If bass notes still blur the kick, duck the bass slightly each time the kick hits. Armada's method is a sidechain compressor on the bass, keyed from the kick, with a fast attack, a threshold set below the kick's level and a release that lets the bass come back as the kick fades. Keep it subtle unless you're making a style where obvious pumping is the point. If the two still clash, check their phase: Armada found that nudging the timing with a small delay gave a tighter low end than a phase tool alone.
The Before-and-After Listening Checklist
Bounce the new version and compare it with your Step 2 reference at matched loudness. Then go through this list:
Kick: can you hear the front of each kick on small speakers or earbuds, not just feel it on big ones?
Snare: does it crack on the beat without sounding thin or clicky?
Bass: does each note stop before the next kick, or do they still blur?
Mono: switch your monitoring to mono. Does the low end stay solid, or does something drop out?
Groove: does it still feel like the same song? If the drums now sound like a different genre, you've gone too far.
Fatigue: listen at a low volume for a full chorus. Over-sharpened transients get tiring fast.
Common Mistakes
Turning everything up: extra level hides the problem for a few seconds and makes the master harder later.
Maxing the attack control: it can make generated drums sound brittle and exposes separation artefacts. Small moves, compared in context.
Shaping the full mix: a transient shaper on the whole stereo track will sharpen vocals and cymbals too. Work on stems where you can.
Widening the bass: stereo sub bass sounds impressive in headphones and disappears on a phone.
Over-ducking: heavy sidechain pumping suits some dance music but makes most other songs feel nervous.
Skipping the bypass check: if you can't hear a clear improvement at the same volume, undo it.
Where That Leaves Us
Generated drums don't need to be replaced to hit properly. Most of the time they need their attack and tail separated, the low end kept centred and steady, and a little space made for the kick, all checked by ear at matched loudness. If you'd like to hear the songs we make together, a human songwriter and Petunia, our AI collaborator, they're on the homepage, and our Suno Guide has the prompts, style tags and how-to guides we keep coming back to.
Sources
Suno Help — Exporting from Studio (Full Song, Selected Time Range and Multitrack exports; Stems panel; WAV output)
Jack Righteous — Transient Control & Punch for AI Music (August 2026, updated September 2026; diagnosing attack and sustain separately, least-to-most destructive fixes)
iZotope — How to Use Transient Shaper for Better Drum Breaks (basic punch move: more attack, less sustain)
iZotope — Essential Bass Compression Guide (2:1 to 4:1 ratios, smooth versus punchy attack and release, sidechain filtering)
Armada Music — How to Mix Your Kick & Bass: 5 Must-Know Methods (mono below 120 Hz, sidechain ducking, phase and timing)
MusicRadar — How to Use Transient Shaping on Drums (kick and snare settings, level matching)
