How to join audio files
- Add two or more audio or video files into the joiner queue.
- Reorder the files using the up and down arrow buttons, and select any pause interval.
- Pick an export format such as MP3, M4A, or WAV, then merge and download your unified track.
Assembling podcast episodes and audiobook chapters
Podcasters and content creators frequently need to stitch together opening theme music, main interview recordings, sponsor ads, and outro credits into a finished episode. The audio joiner merges your files in exact queue order, allowing you to reorder items quickly using the up and down arrow buttons.
You can also insert natural spacing between segments using the silence gap option. Selecting 0.5, 1, 2, or 3 seconds of generated silence creates polished, professional pauses between podcast segments or distinct audiobook chapters without requiring complex DAW timeline editing.
Harmonizing mixed sample rates and video audio
In collaborative media projects, audio clips arrive in an assortment of formats, sample rates, and channel layouts. The joiner normalizes all queued inputs, automatically resampling every segment to a standard 44.1 kHz sampling rate to prevent pitch or speed distortion.
Channel configurations are balanced intuitively: if any track in your sequence contains stereo audio, the final master renders in stereo; if all inputs are mono voice tracks, the output remains mono. You can even include video files; the tool pulls the soundtrack and discards the visual frames.
Single-pass re-encoding to popular formats
Export your finished recording as MP3, M4A (AAC), WAV, FLAC, or OGG Vorbis. For lossy formats, you can select bitrates up to 320 kbps (defaulting to 192 kbps). Because all files must be aligned and resampled, the entire sequence undergoes a clean, single-pass re-encode.
The finished track takes the name of your first queued file with -joined appended before the extension. All joining occurs in your browser memory, keeping unreleased podcasts, voice notes, and audiobooks completely private.
Questions
Can I pull audio from a video clip and join it to an MP3?
Yes. Drop video files into the queue alongside audio files; the joiner extracts the soundtrack and merges it seamlessly.
How do I change the playback sequence of my files?
Use the up and down arrow buttons next to each file in the queue to arrange them in your preferred playback order.
What silence gap should I choose between podcast segments?
A gap of 1 or 2 seconds provides a natural, professional transition between distinct podcast topics or commercial breaks.
Can I join FLAC stems and export as MP3?
Yes. The joiner accepts mixed input formats including FLAC and WAV, and lets you export the merged file as MP3.