How to Mix a Home-Recorded Cover Vocal: Steps, and What a Mix Can't Fix
Mix a home-recorded cover vocal in this order: check the raw take, clean it up, set a rough balance with the backing track, then do EQ, compression, level rides and effects, and finish by listening on several speakers. To start right now, play your vocal alone with no effects and write down every noise, distorted word and timing slip you hear. That list tells you what to fix in the mix and what to record again.
The steps below follow that order. Any numbers in them are starting points to try, not standards, because every voice, microphone and song is different.
What a mix can't fix
A mix makes a good take clearer and helps it sit with the music. It struggles to change what was captured. Before you spend time on processing, listen to the raw vocal for these problems:
- Distortion from recording too loud. If the input was so hot that the loudest words crackle or sound flattened, that damage is part of the file. Repair tools can soften it a little at best. Usually the fix is to lower the input level and sing the line again.
- Too much room sound. A bare room adds echo that gets recorded into the voice. It is very hard to remove later, and adding reverb on top tends to push the voice even farther away. Singing closer to the microphone, or recording among soft furnishings such as a wardrobe full of clothes, often helps more than any plugin.
- Steady background noise. A fan, an air conditioner or a computer sits under every word. If you try noise reduction, start with its lightest setting and listen to the vowels. If they start to sound watery or hollow, back off. If the lightest setting that removes the noise already damages the vowels, the noise is better solved at the recording stage.
- Large pitch or timing slips. Small ones can be edited or gently corrected. Large ones tend to sound unnatural when forced into place, and a new take of that line is often quicker.
- The performance itself. Emotion, phrasing and clear words come from the singing. A mix can bring them forward. It can't add them.
- A take that is very quiet or far from the microphone. Turning it up also turns up the room and the noise.
Two more signs point to the recording rather than the mix. If you keep cutting the same harsh or muddy spot with EQ and it never clears up, the microphone position or the room may be the cause. If lines recorded on different days sound like different voices, the distance to the microphone probably changed between sessions.
When you hear any of these, recording just the problem line again is usually faster than a long repair. Keep the same microphone position and distance so the new line matches the rest. None of this means the take is bad; it means the next improvement is more likely to come from the recording than from more processing.
The mixing steps, in order
- Set up the project. Open a new project in your recording software, import the backing track and the vocal, and keep an untouched copy of the raw vocal file somewhere safe. Play the first line and check that the vocal starts in time with the music. If the whole vocal is early or late, slide it until it lines up, then check a line near the end of the song too.
- Clean the take. Remove or lower the sounds between phrases: clicks, chair creaks, rustling lyric sheets. Keep breaths that belong to the phrasing, because a vocal with every breath deleted often sounds unnatural. Try lowering loud breaths by a few dB instead, and listen to whether they still sound like part of the line. Add short fades at the edges of each edit so they don't click.
- Set a rough balance. As a starting point, set the backing track so its loudest peaks reach around -6 dBFS on the track meter, which leaves room for the vocal. Then bring the vocal up in small steps until you can follow the words in the verse without effort. From here, move the vocal and leave the backing track where it is, so you can tell what each change does.
- Use EQ to clean up the tone. Start with a low-cut filter on the vocal to remove rumble from the room or the microphone stand; try a cutoff around 80 Hz and lower it if the voice starts to sound thin. If the voice sounds boxy, muddy or harsh, sweep a narrow boost slowly to find the spot that sounds worst, then turn it into a gentle cut. Try a cut of 2 to 3 dB first. Switch the EQ on and off to compare, at the same playback volume.
- Compress to even out the level. A compressor narrows the gap between loud and quiet words. As a starting point, use a ratio of 3:1 and set the threshold so the gain reduction meter shows about 3 to 6 dB on the loudest words. Listen for side effects: breaths getting loud, a flat squashed sound, or pumping. If you hear them, ease off.
- Ride the level line by line. Even after compression, some words will still be buried and others will poke out. Raise the quiet words and the ends of phrases, and lower the words that jump out. Moves of 1 to 2 dB are a good step size to start with. The next section shows where to do this in three common programs, and why Audacity users should finish EQ before this step.
- Place harmonies and doubles under the lead. If you recorded extra parts, try setting them 3 dB lower than the lead and adjust from there. When they sit close to the lead's level, the lead tends to lose its place at the front. Check that each word starts and ends with the lead, and trim any word endings that stick out.
- Add reverb and echo last. Put the effect on a separate send or bus if your software allows it, so you can control how much you add. Start with the send all the way down and raise it until you can hear a short tail after each phrase ends. Then pull it back a little. The target is that the words stay as clear as they were with the effect switched off. If the take already has a lot of room sound, use less.
- Check the balance. Turn playback right down; the vocal should be among the last things you can still hear. Compare with the original song at a matched loudness, by lowering the original until it sounds about as loud as your mix, so the louder track doesn't fool you. Then play your mix on earbuds, a phone speaker and, if you can, in a car. Adjust only what fails on more than one of them.
- Rest, then export. Take a break, come back, and listen to the whole song once. Fix only what you notice on that pass. Save the project, then export a WAV and keep the sample rate and bit depth your project already uses, so the file isn't converted on the way out. If you upload to YouTube, YouTube's recommended upload settings list stereo audio with a sample rate of 48 kHz and the AAC-LC (or Opus) codec. If a service publishes a loudness figure, use its own help page rather than a number from a forum. For example, Spotify's help page says it normalizes loudness to -14 dB LUFS, turning louder masters down and softer ones up.
Where to ride the vocal level
These are the places to draw the level changes from the line-by-line step (menu names can differ between versions):
- Audacity: choose the Envelope Tool on the Tools Toolbar, click the vocal track to add control points, then drag them up or down. To change a whole phrase, select it, use Effect > Volume and Compression > Amplify, and type the gain in the Amplification (dB) box. In Audacity, some effects such as filters and EQ can remove a track's envelope, so do EQ first and draw the envelope afterwards.
- GarageBand (Mac): choose Mix > Show Automation (or press A), open the Automation Parameter pop-up menu in the track header and choose Volume fader. Click the automation curve to add points, then drag them up or down.
- REAPER: select the vocal track and press V to show its Volume envelope. With the default mouse settings, Shift-click the envelope to add points and drag a segment up or down. To change a whole clip, drag the item's volume handle, the bar along the top edge of the item, up or down.
Listen to each change with the backing track playing. A word that sounds too loud on its own can be just right inside the full mix.
A short checklist
- I listened to the raw vocal alone and noted noises, distortion and slips.
- I recorded again any line the mix can't fix.
- I kept an untouched copy of the raw vocal.
- The vocal lines up with the backing track at the start and the end.
- Breaths are lowered, not all deleted.
- I did EQ before compression, and in Audacity before drawing the envelope.
- Harmonies and doubles sit under the lead.
- The reverb is audible but the words stay clear.
- I checked at low volume, against the original, and on more than one speaker.
- I exported at my project's own settings and checked the upload service's help page.
Want the vocal-to-backing balance done for you?
KUBOMI, auto-mix and mastering for cover singers, takes over two parts of this job: the balance between your vocal and your backing track, and the final master. You upload your vocal and backing track, and it mixes and masters them. If the vocal level or the echo amount isn't what you want, you can change it to make a new version, and earlier versions stay so you can compare and choose. A clean, close, well-sung take and the decision to record a line again stay with you, so get that first and then try one song.