# Merge Audio Files

> Concatenate two or more audio clips into one file. Drag-reorderable, optional join-fade duration, optional gap between clips, waveform preview of the merged output.

Canonical: https://helpers.aibrush.co/en/audio-merger

## What it does

Drop multiple audio files, drag them into the order you want, optionally set join-fade seconds (linear fade-in on each following clip) and gap seconds (silence between clips). The encoder produces a single output file in your chosen format.

After encoding, the merged output decodes back to a waveform preview so you can spot-check the joins without re-downloading.

## How to use it

1. **Drop multiple files** — Two or more audio clips. Each appears in an ordered list.
2. **Set join fade / gap** — A 0.5–2s join fade softens music transitions. Gap 0.5s inserts a clean silence between podcast segments.
3. **Merge and preview** — Waveform preview renders after encoding; play inline before downloading.

## When to use it

### Podcast assembly

Multi-segment podcast with intro / outro / sponsor reads — drop each, set the order, get one file with clean transitions.

### Music compilation

Personal playlist as one continuous track with softened joins.

### Audiobook chapter merge

Stitch chapter recordings into a single file for upload.

## FAQ

### What if the inputs have different sample rates?

The encoder up- or down-samples each input to a common rate (48 kHz default) before muxing. For best quality match the rates beforehand with Audio Resampler.