Audio formats
Supported formats
Section titled “Supported formats”Uploaded files and direct URLs are accepted in these formats:
| Format | Notes |
|---|---|
| MP3 | Universal compatibility. Recommended for the broadest device support, including iOS. |
| WAV | High quality, uncompressed. |
| OGG | Open format, good compression. Not supported on iOS (iPhone and iPad). |
| M4A | Apple audio format. |
| AAC | Advanced Audio Coding. |
| FLAC | Lossless compression. |
| WMA | Windows Media Audio. |
| WEBM | Web-optimised audio. |
These eight extensions are the ones the admin URL validator accepts for direct
file URLs (mp3, wav, ogg, m4a, aac, flac, wma, webm).
How the format is determined
Section titled “How the format is determined”- For a direct URL, the extension is read from the URL (query strings are stripped first) and matched against the list above.
- The player sets the
<source>MIME type from the extension. Extensions it does not recognise fall back toaudio/mpeg. - Developers can add or override extensions and MIME types with the
wcap_allowed_audio_extensionsandwcap_audio_mime_typesfilters. See the Developer Guide.
- Use MP3 for the widest compatibility.
- Keep preview clips short (roughly 30 to 60 seconds).
- Serve lower-bitrate preview files and reserve full-quality audio for buyers.