Extract, trim, normalize audio
Pull audio out of a video as MP3/WAV/AAC, then trim, convert, normalize loudness, adjust volume and fade — all offline on your Mac.
Extract audio from a video and edit it offline in 1FileTool — pull the soundtrack out as MP3, WAV or AAC, then trim, convert, normalize or fade it without anything leaving your Mac. Extraction lives in Video Tools; the editing tools are in Audio Tools.
Protect your originals first
Replace source is ON by default: the output overwrites the original file and no backup is kept. Before following along, open Settings › General and turn Replace source off, or pick a separate output folder.
Pull the audio out of a video
- Open Video Tools › Extract Audio (tool page) — or Audio Tools › Extract from Video (tool page), which also offers FLAC and OGG.
- Drop the video.
- Pick an Audio format — MP3 for sharing, WAV for editing, AAC for Apple-sized files.
- Run it. The file lands as
<name>_audio.<fmt>in your output location.
Then edit it in Audio Tools
- Convert — MP3, WAV, AAC, FLAC or OGG in either direction.
- Trim Audio — start and end times in
HH:MM:SS— cut a chapter or a ringtone. - Normalize Audio — evens loudness to a standard level (EBU R128) so clips play back at consistent volume.
- Adjust Volume — multiply loudness by 0.5× to 2.0×.
- Merge Audio — join clips end to end; Split Audio cuts at a timestamp.
- Remove Silence — strips dead air from recordings.
- Fade In / Fade Out — smooth the ends of a clip.
- Change Bitrate (64–320k) and Change Sample Rate (22.05–96 kHz) — size and quality dials.
- Stereo to Mono — collapse channels for voice notes.
What extraction can't do
Extraction copies the video's audio stream — it can't separate voices from music, and it doesn't transcribe speech to text (no transcription tool exists). For silent stretches in a video, Silence Cut (Silence Cut) jump-cuts the video itself.