How to Prepare Your Stems for Mixing: A Complete Guide

Sending your project to a mixing engineer for the first time is exciting — but if your stems aren't prepared correctly, you're adding hours of unnecessary work to the session and potentially compromising the quality of your mix. Here's exactly how to do it right.

What Are Stems?

Stems are individual audio tracks or grouped audio files exported from your DAW (Digital Audio Workstation). Instead of sending your entire project file — which requires the engineer to have the same DAW, plugins, and samples — you export each element as a separate audio file. This is the universal standard for professional mixing.

Step 1: Clean Up Your Session First

Before you export anything, spend 20–30 minutes cleaning up your session. Remove any unused tracks, silence any sections where a track isn't playing, and make sure every track is labeled clearly. A clean session = a clean stem export = a faster, better mix.

Also check for any timing issues — if a vocal take is slightly off-grid or a sample is drifting, fix it now. Don't leave timing problems for the mixing engineer to discover.

Step 2: Set Your Export Settings

Export your stems at 24-bit / 48kHz WAV. This is the professional standard. Do not export as MP3 — you lose audio quality that cannot be recovered. Do not export at 16-bit — you lose dynamic range that matters in the mix.

Make sure all stems start at the same point in the timeline (bar 1, beat 1, or 00:00:00:00). This is critical — if stems start at different points, the engineer has to manually align everything, which wastes time and introduces errors.

Step 3: Leave Headroom

Before exporting, check your master bus level. You want your mix to peak at around -6dB to -3dB — not hitting 0dB or clipping. If your mix is too loud, pull down the master fader or individual track levels before exporting. The mixing engineer needs headroom to work.

Remove any limiting or heavy compression from your master bus before exporting. The mixing engineer will apply their own processing — don't pre-limit the mix.

Step 4: Label Everything Clearly

Name every stem clearly and consistently. Good naming conventions:

• Lead_Vocal_Main.wav
• Lead_Vocal_Harmony_L.wav
• Kick_808.wav
• Snare_Main.wav
• Hi_Hat_Closed.wav
• Bass_Synth.wav
• Piano_Chords.wav
• FX_Riser_01.wav

Avoid names like "Audio 01", "Track 7", or "New Recording". The engineer should be able to understand what each stem is without opening it.

Step 5: Organize Your Files

Create a folder for your project and organize stems into subfolders:

• Vocals/ — all vocal tracks
• Drums/ — kick, snare, hi-hats, percussion
• Bass/ — 808s, bass synths, bass guitar
• Melodics/ — synths, piano, guitar, pads
• FX/ — risers, impacts, atmospheres
• Reference/ — any reference tracks you want the engineer to hear

Step 6: Include a Reference Track and Notes

Include 1–2 reference tracks that represent the sound you're going for. These don't have to be in the same genre — they just need to capture the energy, tone, or vibe you want. A brief note explaining what you like about each reference is helpful.

Also include a short brief: the song's BPM, key, genre, any specific requests (e.g., "keep the vocals upfront," "I want a lot of low-end punch"), and your delivery deadline.

Common Mistakes to Avoid

• Exporting stems with heavy master bus limiting applied
• Stems that don't all start at the same point in the timeline
• Exporting as MP3 instead of WAV
• Not labeling tracks clearly
• Forgetting to include a reference track
• Sending a rough mix without noting what you want changed

Frequently Asked Questions