A good Suno master is not simply the loudest export. It is a version that keeps the musical intent, controls distracting artifacts, translates across playback systems, and leaves safe peak headroom for distribution.
Quick answer
Export the best available WAV, listen for problems that mastering can actually solve, make tonal and dynamic changes in small steps, compare at matched loudness, check the result on several playback systems, and export a high-quality WAV. Streaming loudness figures are playback-normalization references, not upload requirements.
If you would rather have the finishing work handled for you, Suno AI Mastering accepts WAV, FLAC, and MP3 files and returns a private high-quality WAV.
1. Start with the best source
Mastering cannot fully repair a broken generation. Before processing, listen from beginning to end and decide whether the source has a mastering problem or a composition and generation problem.
Regenerate or revise the song when you hear:
- missing words, incorrect lyrics, or an unusable performance
- severe warbling, dropouts, or sections that collapse
- clipping already printed into the source
- an arrangement problem, such as a chorus that never develops
- a lead vocal or instrument that is fundamentally buried
Continue to mastering when the song works but needs better tonal balance, controlled peaks, steadier section-to-section level, clearer low mids, or more reliable translation.
Use the lossless WAV export when your Suno plan provides one. Avoid converting an MP3 to WAV: the container changes, but the lost audio detail does not return. Leave sample-rate conversion to the final delivery step unless a distributor requires a particular format.
2. Diagnose before touching controls
Listen once without processing and write down only the most distracting issues. Common Suno-export symptoms include brittle high frequencies, cloudy low mids, soft or smeared drum attacks, narrow or unstable stereo information, and synthetic consonants on vocals.
Prioritize the issues. A useful order is:
- obvious distortion or artifacts
- tonal imbalance
- uncontrolled dynamics and peaks
- stereo and mono translation
- final playback level
This order prevents a limiter from hiding problems that should have been addressed earlier.
3. Decide whether stem separation helps
Stem separation can be useful when vocal harshness needs treatment that would make cymbals dull, or when the instrumental low mids need control without thinning the voice. It is not automatically better: separation can introduce bleed, phase changes, or watery artifacts.
Compare the separated and original versions before committing. Use the original stereo export when separation creates more damage than it solves. Planetary Ultra is a $10.00 master: $7.00 for Standard processing plus $3.00 for the stem-split stage. Eligible campaign bonus balance can contribute, while signing up or logging in grants nothing automatically.
4. Shape tone with small moves
Correct broad balance before chasing tiny resonances.
- Reduce excessive sub-bass or low-mid buildup if the track masks itself.
- Soften brittle upper mids or high frequencies when vocals and cymbals become tiring.
- Use narrow cuts only for repeatable resonances that remain distracting throughout the song.
- Recheck at a quieter monitor level; tonal balance is easier to judge when loudness is not doing the persuading.
Large boosts often exaggerate generation artifacts. Several small, intentional moves are usually safer than one dramatic curve.
5. Control dynamics without flattening the song
Compression can connect sections and restore confidence, but heavy gain reduction can make AI artifacts pump or smear. Set slower attack times when the drums need more impact and faster release times only when they recover cleanly between hits.
Use automation or section-based processing when a quiet verse and dense chorus need different treatment. A single aggressive setting rarely serves both.
After compression, compare the processed and unprocessed versions at the same perceived level. If the processed version only sounds better because it is louder, the decision is not reliable.
6. Treat loudness as a playback decision
Spotify publishes -14 dB LUFS for its Normal playback setting and recommends true-peak headroom. Apple and YouTube do not publish one universal LUFS upload target in their general delivery guidance. Treat normalization as playback context, not a cross-platform upload rule.
Master for the song first. A dense electronic track may support more level than a sparse acoustic arrangement. Chasing a number can remove punch, enlarge distortion, and make the normalized result sound smaller.
Leave true-peak headroom for encoding. A conservative ceiling around -1 dBTP is a common starting point, while some lossy-delivery situations benefit from more. Measure the final exported file rather than trusting only the limiter setting.
See the source-linked loudness and pricing reference for current first-party Spotify, Apple, and YouTube documentation and its review date.
7. Quality-control the final export
Listen to the entire file after export, not only inside the mastering session.
- Check the first and last seconds for clipped fades or unwanted silence.
- Listen in mono for disappearing vocals, bass, or effects.
- Compare headphones, small speakers, and a familiar full-range system.
- Check the loudest chorus and the quietest section.
- Confirm that the file name, sample rate, bit depth, and channel count match the distributor request.
- Keep the unmastered source and final master in separate, clearly named files.
Do not compare solely against a commercial reference at unmatched loudness. Turn the reference down until both versions feel equally loud, then compare tone, punch, width, vocal focus, and fatigue.
Release checklist
Before uploading to a distributor:
- the arrangement and lyrics are final
- the master plays cleanly from start to finish
- no limiter overs or accidental clipping appear
- mono playback remains usable
- the WAV format matches the delivery specification
- artist, title, songwriter, artwork, and rights information are consistent
- you have permission to distribute every element in the recording
Mastering is one part of release preparation. Keep your metadata and ownership records with the same care as the audio.
Next step
Use Planetary Suno AI Mastering for an artifact-aware finish, browse the Suno creator guides, or review Suno meta tags before generating the next version.