SET YOUR AUDIOBOOKS FREE ON YOTO!
FAQ's and Help
What files can Little Vox work with?
Little Vox accepts M4B, MP3, M4A, FLAC, WAV, OGG, and AAC files. Most audiobooks you download from DRM-free stores, rip from CD, or find on the Internet Archive will fall into one of these formats.
Can I use Audible books?
No. Audible audiobooks use a proprietary encrypted format (AAX/AA) protected by digital rights management (DRM). If you want to bring a title to Yoto, you'll need a DRM-free copy. Many public libraries offer free audiobook loans through Libby / OverDrive, and some publishers sell DRM-free MP3 downloads directly. Some third party software (like https://www.viwizard.com/audible-converter/) claim to strip DRM - but we cannot endorse this. Even claims to remove DRM for backup/personal use are on shaky ground.
What are Yoto's audio specifications?
Yoto is optimized for spoken-word audio. Little Vox prepares files to meet those requirements automatically. Through compression technology, transcoding and intelligent file division, we are able to meet Yoto's requirements that individual tracks (chapters) not exceed 100 MB without loss to audio fidelity. We will say, however, it's a good thing we're not playing these files on a hifi system :)
How does Little Vox actually work?
When you queue a file, Little Vox runs a multi-stage preparation pipeline:
Inspection — FFprobe analyzes the source file's codec, bitrate, duration, chapter markers, and embedded artwork.
Art extraction — Cover art is extracted from the container metadata (ID3 tags for MP3, iTunes atoms for M4B/M4A) and saved as a separate image.
Segmentation — For files that exceed Yoto's per-track size ceiling, the audio stream is split at safe boundaries to produce multiple numbered track files. M4B chapter markers are used as split points when available.
Transcoding — Each segment is passed through FFmpeg. FLAC, WAV, OGG, and high-bitrate sources are re-encoded to MP3 at your chosen bitrate. MP3 and M4B files are stream-copied at their original quality (no re-encoding, no quality loss) when they already meet Yoto's specifications.
Optional normalization — If enabled, an EBU R128 loudness pass adjusts perceived volume to −16 LUFS, useful when mixing recordings made at different levels.
Upload — With a connected Yoto account, Little Vox authenticates via OAuth, creates a new playlist entry in your Yoto library, and uploads each track segment in parallel. Yoto's servers then run their own transcode pass before the book appears in the Yoto app.
What are the limitations of the Internet Archive?
The Internet Archive is an incredible free resource, but it's worth knowing what you're getting:
Public domain only. The audiobooks collection contains works whose copyright has expired — primarily books published before 1928 in the US. You won't find recent bestsellers here.
Volunteer readers. Almost all recordings are made by volunteers as part of the LibriVox project. Quality varies: some readers are wonderful; others have noticeable background noise, inconsistent pacing, or audio artifacts. There's no quality guarantee.
No chapter markers. Most IA recordings are distributed as individual chapter files (one MP3 per chapter) rather than a single chaptered M4B. Little Vox merges and prepares them automatically, but the Yoto player won't have named chapters — just numbered track segments.
Format variety. Items may include MP3s at a wide range of bitrates, M4B files, or ZIP archives of chapter files. Little Vox handles all of these, but download times will vary.
Availability. The Internet Archive is a non-profit with occasional downtime and rate limits. If a search or download fails, waiting a few minutes and trying again usually resolves it.