Tools/Speed Changer/Voiceover Artists
Speed Changer for voiceover artists
Change playback speed without affecting pitch. Tuned for voiceover artists and audiobook narrators — runs entirely in your browser, no signup, no upload.
Loudness target
-19 LUFS
True peak
-3 dBTP
Output format
MP3
Bitrate / depth
192k
Why voiceover artists use this
Mouth clicks, breath noises, dead air, inconsistent levels
Voiceover delivery is heavy on cleanup. Every take needs silence trimming, level matching, and chunking by line or chapter. Audiobook clients want -18 to -23 LUFS with -3 dBTP peaks; commercial work wants -16 LUFS. Browser tools cover the full delivery flow without leaving Chrome.
For voiceover artists and audiobook narrators, the typical workflow is: Record → trim breaths → normalize → split takes → deliver. The Speed Changer fits in that chain by handling change playback speed without affecting pitch. — without leaving the browser, without uploading the file, and without a watermark.
Recommended settings
The right config for voiceover artists and audiobook narrators
| Setting | Recommended | Why |
|---|---|---|
| Loudness target | -19 LUFS (ACX safe zone) | Sits inside the -23 to -18 LUFS Audible/ACX window |
| True peak | -3 dBTP | ACX rejects anything peaking above this |
| Format | MP3 192 kbps mono CBR | ACX delivery spec — one MP3 per chapter |
Where this fits in your workflow
The voiceover artists and audiobook narrators workflow
- 01Record→
- 02trim breaths→
- 03normalize→
- 04split takes→
- 05deliver
More for voiceover artists
Other tools voiceover artists and audiobook narrators use
Audio Trimmer
Trim silence and dead air from any audio clip.
Open →Audio Merger
Stitch multiple audio files into one seamless track.
Open →Audio Splitter
Split a long audio file into smaller named pieces.
Open →Volume Booster
Increase loudness on quiet recordings safely.
Open →Silence Remover
Auto-remove silent gaps from podcasts and recordings.
Open →Audio Cutter
Cut precise sections out of your audio with a waveform.
Open →Speed Changer for everyone
Other ways to use the Speed Changer
Voiceover Artists FAQ
What loudness for audiobook delivery?
ACX (Audible) requires -23 to -18 LUFS integrated, with -60 dB or quieter noise floor and -3 dBTP peaks. Most narration sits around -19 LUFS for safety inside the window.
Should I encode VO as MP3 or WAV?
Most clients want WAV for the master, then convert to whatever format they distribute. ACX specifically wants MP3 192 kbps CBR mono per chapter — convert at the end of the pipeline.
Upload a track to
instantly master
Choose a file or drag it here
Supports WAV · FLAC · MP3 · M4A · AIFF