Audio Stem Mixer

Audio Stem Mixer | Online Free Tool | Elysia Tools

Tool usage guide

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Category: Media
Input types: file, number, select
Output type: file
Sample coverage: 4
API ready: Yes

Overview

The Audio Stem Mixer combines multiple audio stems to create normal, vocal up, and vocal down mixes, packaged in a zip file for easy sharing and use.

When to use

When you have separate audio stems from a recording and need to mix them into cohesive tracks.
When you want to adjust vocal levels by boosting or reducing them for different listening contexts.
When you need to export audio mixes in various formats like MP3, WAV, or AAC efficiently.

How it works

1Upload 2 to 8 audio stem files in supported formats.
2Specify the vocal stem index and set gain levels for vocal up and down versions.
3Select the output format and process to generate three mixes in a zip file.

Use cases

Creating alternate mixes in music production with emphasized or de-emphasized vocals.
Balancing vocal levels in podcast episodes that have multiple audio tracks.
Adjusting dialogue stems in audio post-production for film or video projects.

Examples

1. Enhancing Vocals for a Song Mix

Background

A music producer has separate stems for drums, bass, guitar, and vocals from a studio session.

Problem

Need to create versions with louder and softer vocals for different playback environments.

How to use

Upload the four stem files, set vocal index to 3, adjust vocal up gain to 6 dB and vocal down gain to -6 dB, and choose MP3 output.

Outcome

Generates three mixes: normal, vocal up with boosted vocals, and vocal down with reduced vocals, all in a zip file.

2. Batch Processing Podcast Episodes

Podcast Editor

Background

An editor handles multiple podcast episodes with separate voice and music stems.

Problem

Manually adjusting vocal levels for each episode is time-consuming and inconsistent.

How to use

Select the stem files for an episode, specify vocal index for the voice track, set gains, and choose AAC format.

Outcome

Produces mixed versions with adjusted vocal levels quickly, ensuring consistent audio quality across episodes.

FAQ

What audio formats can I upload as stems?

You can upload common audio formats such as MP3, WAV, AAC, and others as stem files.

How many stems can I mix at once?

The tool supports mixing between 2 and 8 audio stems simultaneously.

What is the vocal stem index?

It is a 0-based index that identifies which stem file contains the vocals for gain adjustment.

Can I customize the gain for vocal versions?

Yes, you can set vocal up gain (default +3 dB) and vocal down gain (default -3 dB) within a range of -12 to 12 dB.

What output formats are available?

Available formats include MP3, AAC, M4A, OGG, Opus, FLAC, and WAV.

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Inputs

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Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Overview

When to use

How it works

Use cases

Examples

1. Enhancing Vocals for a Song Mix

2. Batch Processing Podcast Episodes

FAQ

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