LoopMastering

Automated Mixing.Refined by You.

Upload the separate tracks of your song (stems), get a polished mix automatically, then refine vocals, drums, bass, width, effects, and more with simple instructions.

How it works

From stems to a finished mix in three steps

  1. Drop your stems

    Add the tracks of one song: WAV, FLAC, AIFF, MP3, M4A or AAC.

  2. Hear three mixes

    In a few minutes you get Clarity, Punch and Space: three complete mixes of your song. Leave the page if you like. We can email you when they are ready.

  3. Make it yours

    Ask for changes in plain words, or take the faders. Then download the WAV, or send your favorite mix to mastering in one click.

Three directions

One upload. Three finished mixes.

Every mix gets the full treatment: balance, EQ, compression, space and width. The three directions differ in feel. Switch between them while the song plays, then keep the one that fits.

Clarity

Clear detail, a steady foundation and balanced space. Every part has its place, and nothing fights for attention.

Good for: Pop, singer-songwriter, R&B, and any song where every word must land.

Your balance, or a fresh one

Did you already set your levels in your DAW? Keep them: the engine mixes the song around your balance. Or switch to Rebuilt, and every stem gets a finished-mix level. Switch at any time, with no new upload. Playback stays at the same point.

Mix by chat

Say what you hear. The mix follows.

Type what you want in your own words. The studio changes the mix, and you hear the result right away. Every step stays in the history, so you can undo it or go back to it.

Things people ask for

  • “Vocals louder”
  • “Punchier drums”
  • “Less reverb on the guitar”
  • “Pan the keys left”
  • “Wider stereo”
  • “Bass down a little”

Full console

Or take the faders yourself.

Open the console for hands-on control of every stem. It runs live in your browser, so you hear each move at once. When you download or master, the studio server renders your settings at full quality.

  • Level, pan and width
  • Mute and solo
  • High-pass and low-pass filters
  • EQ with presets and a live curve
  • Compression
  • Reverb and delay sends
  • Tempo-synced delay
  • De-esser and noise gate
  • Stereo widener
  • Chorus, flanger, phaser, tremolo
  • Phase invert and mono check
  • Analog character, clean to driven
  • Loop a section
  • Save presets for your next song

Auto pitch correction

The studio finds the song key and tunes the vocal live, while you listen. Set the strength, the smoothness and the voice type, from a light touch to a firm correction.

A channel for every track

Explode any group, and each track gets its own fader, pan, EQ with a live curve, effects and presets. The group controls stay on top.

Real fixes

Hear a problem? Fix it in one sentence.

These are the changes people ask for most. Each one takes seconds.

The vocal is buried

You say“Bring the vocal up”

The vocal comes forward. Reverb and delay duck under it, so the words stay clear.

Some notes are off-key

You doTurn on Auto pitch correction

The studio finds the song key and pulls the vocal to pitch, live while you listen.

The drums feel weak

You say“Punchier drums”

The drums hit harder. For more impact on the whole song, pick the Punch mix.

The mix sounds narrow

You say“Wider stereo”

The instruments spread out. The low end stays in the center, so the mix still works in mono.

Your levels were all over the place

You doSwitch Balance to Rebuilt

Every stem gets a finished-mix level. No new upload.

Too much room on one part

You say“Less reverb on the guitar”

Only that part changes. The rest of your mix stays as it is.

Only have a finished stereo file? Split it into stems first

Under the hood

Mixed the way an engineer works

The engine listens to each stem, works out what it is, and treats it the way a mix engineer would.

Levels by role

The engine knows a lead vocal from a kick drum. Each stem gets a level that fits its role and your genre.

Room for every part

EQ clears space between the instruments, and the bass gives way to each kick. The vocal, the bass and the drums do not fight.

Dynamics that hold

Compression is set for each role. The mix keeps its movement and stays steady.

Space that steps aside

Reverb and delay duck while the lead vocal sings, and come back up in the gaps.

Width that stays mono-safe

Width goes to the instruments. The low end stays in the center, and a mono check is one click away.

Only your sounds

Nothing is generated or replaced. Every note in the mix comes from your own stems.

Mix to master

Happy with it? Master it in one click.

Send the mix you like straight into mastering. The handoff follows the rules engineers use for a master-ready mix.

  • 32-bit float WAVFull resolution. Nothing is rounded off.
  • No limiter on the mixThe peaks stay intact for the mastering stage.
  • Headroom keptTrue peak at or below -1.2 dBTP.
  • The style follows your mixClarity and Punch master in Modern. Space masters in Open.

Worried about AI flags?

We never add AI sounds to your song.

Distributors and streaming services now check new releases for AI-generated music. The mixing engine generates nothing. It balances, shapes and places your own recordings, so every note in the mix comes from your stems. Keep those stems: if a distributor asks for proof, they show the song is your own work.

  • Zero AI-generated sounds
  • Your stems in, your mix out
  • No parts replaced or added

FAQ

Mixing questions, answered

What to upload, how long it takes, and what you get.

What should I upload?

The separate tracks of one song, exported from the same session: vocals, drums, bass, instruments and so on. Every file must be full-length and start at 0:00, so they line up. You can add up to 60 tracks.

Multitracks or stems: which is better?

Both work. Multitracks (one file for each instrument or microphone) give the engine the most control, so they give the best result. Grouped stems, such as all drums in one file, work well too.

Should I remove my effects first?

Only reverb and delay: the mix adds its own. Turn off reverb, delay and everything on the master channel, and keep all the other effects, such as a guitar amp, a synth filter or a vocal effect.

How long does a mix take?

Usually a few minutes. It depends on the number of tracks and the length of the song. You can leave the page and get an email when your mixes are ready.

Can I keep my own balance?

Yes. The Balance switch lets you hear your own levels with the full mix processing, or a balance rebuilt from scratch. Both are in the same session.

Does it add AI-generated sounds?

No. The engine balances, shapes and places your own recordings. It does not generate, replace or add musical parts.

Which genres does it know?

Pop, Electronic, Hip-Hop, Latin, Afrobeats, Reggae and Dancehall, Funk and Disco, Rock, Metal, Acoustic, Country, Jazz, R&B and Soul, Gospel and Worship, Indie, Orchestral and Cinematic, and K-Pop. Not sure? Leave it on Auto.

What file do I get?

A 32-bit float WAV of the mix you pick, named after your song. Send it straight to mastering here, or take it to your own mastering engineer. To download it, pay once for this song or go Unlimited.

Can I come back to a mix later?

Yes. Your session is saved. When you are signed in, you find it in your dashboard on any device. As a guest, it is saved in this browser.

Blog

How to Mix a Song From Stems: From Export to a Master-Ready Mix

How to export stems that mix well, what a finished mix actually does, how to judge it honestly at matched loudness, and how to hand a clean, master-ready file to mastering.

No account required. Try it for free.

Upload your stems and hear all three mixes for free, with no account. Pay once to download your mix, or go Unlimited for unlimited mixes and mastering.

Pricing

Choose the plan that fits how you make music.

Unlock one song when you need it, or split, mix, and master without limits.

Unlimited DownloadsDownload as many masters, stems, and mixes as you want, with no extra fees. Masters come in WAV/MP3/M4A.
Unlimited Stem SplitterSplit any song into separate stems, with no per-song fees.
Unlimited MixingMix as many tracks as you want with full access to the mixing console.
Advanced Realtime Mastering OptionsAdjust loudness, width, bass, air, presence, & more, while previewing the changes in realtime.
Reference MasteringUpload a reference track so the master can follow its tone, loudness, and direction.
Access anytimeCome back anytime to your library to preview & download your past masters, stems, and mixes.