Play ADX files in your browser
CRI's sound format in countless console games since the 1990s. Play an ADX right here, loop and all, and keep it as an MP3 or WAV. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your game's sound plays the moment it opens, twice through its loop and then a fade, its whole waveform across your screen.
- Its whole waveform • Press or drag to jump
- Back and ahead 10 seconds • Half, 1.5× or double speed
- Show tags • Codec, loop, sample rate and channels
- Export • Save as MP3 or WAV
About ADX
CRI Middleware made ADX for the music and voices of games, and through its ADX and CRIWARE tools it has been in thousands of them, from the Dreamcast to the PlayStation's and Nintendo's consoles.
ADX packs sound with an ADPCM of CRI's own, about 4 bits a sample, a quarter of a CD's, simple enough for the consoles of the 1990s to play many at once. Its header gives the loop, so music plays on for as long as a game needs it, and some games scramble the sound with a key of their own.
Filepeek plays an ADX in your browser with vgmstream, twice through its loop and then a fade, with its waveform, speeds and tags, and Export saves it as MP3 or WAV. An ADX scrambled with its game's key doesn't play: Filepeek carries no game's keys and takes none, and it says so.
CRI ADX audio
.adx
Format
- MIME type
- application/octet-stream
- Made by
- CRI Middleware
Inside the file
- Audio
- CRI's 4-bit ADPCM
- Loop
- Where the music starts over
- Channels
- Mono or stereo
- Made by
- CRI's ADX and CRIWARE tools
Opens in every browser
Filepeek plays ADX files in Chrome, Edge, Firefox and Safari. No browser plays them by itself.
- YouChromePlays through Filepeek
- YouEdgePlays through Filepeek
- YouFirefoxPlays through Filepeek
- YouSafariPlays through Filepeek
Apps that open ADX
- Windowsfoobar2000 with vgmstream, free
- MacNo app built in plays it • vgmstream-cli, from Homebrew, turns it into a WAV
- iPhone and iPadNo app built in plays it
- AndroidNo app built in plays it • An MP3 saved here plays anywhere
Questions
How do I play an ADX file?
Drop it on this page or choose Peek an ADX. It plays in your browser, twice through its loop and then a 5 second fade, the way a game loops its music.
Can I turn an ADX into an MP3?
Yes. Choose Export, then Save as MP3 or WAV, and the sound is saved as it plays here, loop and fade included.
Why does it say my ADX is encrypted?
Some games scramble their ADX files with a key of their own. Filepeek carries no game's keys and takes none, so those don't play.
What is the difference from HCA?
HCA is CRI's newer format, which packs sound far smaller than ADX's ADPCM, about as small as an MP3. Filepeek plays both.