How to prepare stems for mixing

Sending stems the right way is one of the fastest ways to improve your mix results. A clean export saves revision time, prevents sync issues, and lets your engineer focus on sound — not fixing file problems.

This guide covers what to export, how to label files, and the most common mistakes to avoid before you upload to GigTunes.

What are stems?

Stems are separate audio files for groups of instruments in your song — for example:

• Drums (or kick, snare, overheads separately)
• Bass
• Lead vocals
• Backing vocals
• Synths / keys
• Guitars
• FX / atmospheres

Your mix engineer imports these into a DAW and balances them together. Unlike a single stereo bounce, stems stay editable — levels, EQ and effects can be adjusted per group.

If you are new to the concept, read Mixing vs Mastering to see how stems fit into the full release workflow.

Before you export

1. Finish your production decisions

Export when you are happy with:

• Arrangement (no more adding major parts)
• Tempo and key
• Core sound design and MIDI parts printed to audio

Small changes after export are fine, but rebuilding half the song mid-mix slows everyone down.

2. Note your session info

Include in your project notes:

• BPM (tempo)
• Key
• Time signature (if not 4/4)
• Any tempo map or beat drops (if applicable)

3. Remove what should not be mixed

Mute or delete:

• Master bus limiters or heavy mix-bus compression (export dry groups when possible)
• Test tones, click tracks you do not want in the mix
• Duplicate muted tracks that add confusion

Export settings (recommended)

Avoid: MP3 or AAC for mixing. Lossy files limit quality and can introduce artifacts.

How to export from your DAW

Every DAW is different, but the workflow is similar:

1. Solo or route each stem group to its own output
2. Start playback from bar 1 (or the same start point for all exports)
3. Export from the beginning of the timeline through the full song length
4. Include a bar or two of silence at the start if you use pre-roll — tell your engineer

Dry vs processed stems

Dry stems (no reverb/delay on the file) give the engineer the most flexibility.
Processed stems (with effects printed) are fine when the effect is part of the sound — e.g. a dotted-delay vocal hook.

A common approach:

• Dry: drums, bass, most instruments
• Wet / printed FX: specific vocal throws, creative delays, distorted layers

Mention your choices in the upload notes.

Stem naming that engineers love

Clear names beat clever ones. Use simple English labels:

01_Drums.wav
02_Bass.wav
03_Guitars_Electric.wav
04_Synths_Pad.wav
05_Vocals_Lead.wav
06_Vocals_Backing.wav
07_FX_Risers.wav

Tips:

• Use underscores instead of spaces
• Put the song name or order number in a folder, not in every file if it is redundant
• Label Lead vs Backing vocals separately
• Split kick and bass when the low end is tricky

What to include in your upload

Along with stems, provide:

1. Reference track(s) — one or two songs that match the vibe (streaming links or files)
2. Rough mix (optional) — your level balance so the engineer hears your intent
3. Lyrics (for vocal-heavy songs)
4. Notes — what you want louder, softer, or more atmospheric

At GigTunes you can upload sources and references in your order workspace after checkout.

Common mistakes to avoid

Different lengths per stem

Every file must be the same duration and start at the same point. Otherwise vocals drift against drums.

Exporting with master bus processing

A limiter on the master makes all stems squash together. Bypass the master chain for exports when possible.

Stereo vs mono confusion

Kick and bass are often mono or narrow; wide pads are stereo. Export what you actually use — do not collapse everything to mono without reason.

Forgetting to disable normalization

Many DAW export dialogs have “normalize” checked by default. Turn it off so levels stay natural across stems.

Sending only a stereo bounce

A single stereo file is a mix, not stems. You need separate files unless you only booked mastering.

Minimum stem list (simple sessions)

For a typical pop or hip-hop track:

• Drums (or kick / snare / rest split if you have time)
• Bass
• Instruments (keys, guitars, synths — split if they fight in the mix)
• Lead vocal
• Backing vocals
• FX / transitions

More separation helps on complex productions; fewer stems are fine when parts already blend well as groups.

Checklist before upload

• All stems same length and start point
• WAV, 24-bit, session sample rate
• No master limiter on exports
• Files clearly named
• BPM and key in project notes
• References uploaded
• Rough mix included (optional but helpful)

Next steps

When your stems are ready, start a mixing order and upload your files. If you are unsure whether your track needs mixing or only mastering, read Mixing vs Mastering first.