Convert CRI ACB cue sheets to MP3 online and get the sound effects and voices stored inside. Upload files up to 20GB and download the converted result in a few clicks.
Drag & Drop your ACB file here
ACB files, up to 20GB
Files stay private.
Automatically deleted after 24 hours.
Link
20GB upload limit.
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Trusted for 1,827,796+ conversions
HOW IT WORKS
Three steps, no account, nothing to install.
01
Upload your ACB file
Drag and drop a .acb file from a game's sound folder, or select it from your device.
02
Convert to MP3
Keep MP3 as the output format and start. Each sound stored in the .acb is decoded and encoded as a high-quality variable bit rate MP3.
03
Download the MP3s
Each sound becomes one MP3, numbered in bank order and zipped on the download page.
ACB
ACB is the cue sheet format of CRI ADX2, the sound middleware used in many Sega, Atlus and mobile games. An .acb lists a game's sound cues and can store short sounds itself, usually as HCA or ADX audio. Longer music and voices are usually kept in a companion .awb streaming file.
MP3
MP3 is a lossy compressed audio format built for small files and broad playback compatibility. It works on almost every phone, browser, car stereo, media player, and editing application.
FILE FORMATS
SOURCE
An ACB is a CRI ADX2 cue sheet. It lists a game's sounds with their cue names and either stores short sounds inside itself or points to a companion .awb wave bank that holds the streamed audio. Sound effects, voices and jingles in many Japanese and mobile games live in ACB and AWB pairs.
TARGET
MPEG-1 Audio Layer III has been the universal music format since the 1990s. It compresses audio by removing sounds the ear is unlikely to hear, so a song takes a few megabytes instead of tens. ID3 tags carry the title, artist and album art, and every phone, browser, car stereo and editor plays it.
| Feature | ACB | MP3 |
|---|---|---|
| Developed by | CRI Middleware (ADX2) | MPEG (Fraunhofer) |
| File extension | .acb | .mp3 |
| Compression | HCA or ADX inside | Lossy |
| Size vs uncompressed WAV | About 1/4 to 1/10 | About 1/7 to 1/10 |
| Tags and cover art | Cue names | ID3 tags and cover art |
| Best for | Sound banks in CRI games | Music and podcasts everywhere |
| Plays on phones and browsers | No, needs vgmstream | Yes |
USE CASES
Practical workflows where ACB to MP3 conversion is useful.
Rip sound effects from a mobile game
Many mobile games keep their effects in .acb files. Convert one to get each sound as a numbered MP3.
Save menu jingles and UI sounds
Get the short jingles and menu sounds a Sega or Atlus game stores in an .acb as MP3s you can play anywhere.
Collect voice lines stored in a cue sheet
Voice banks stored inside an .acb become one MP3 per line, ready to share or use in a fan video.
Find out which .awb holds the audio
When an .acb only lists cues, the message says the sounds are in a separate .awb and usually names it, so you know what to look for in the game folder.
Use game sounds in a video edit
Drop the MP3s into Premiere Pro, DaVinci Resolve or CapCut for a review or montage.
Build a streaming soundboard
Load the numbered MP3s into a soundboard app to play game sound effects live on stream.
Make a notification sound
Turn a short game jingle into an MP3 and use it as a phone notification or alarm.
Add game sounds to a fan wiki
Wiki editors documenting a game can convert a cue sheet's effects and voice lines to MP3s that play in any browser.
Preview sounds before modding
Modders replacing effects or voices can convert the original .acb to hear each sound and note its position in the bank.
Share a sound on Discord
Post a converted effect or jingle in a Discord chat, where an MP3 plays inline.
SUPPORTED FILES
CRI ADX2 cue sheets with sounds stored inside are supported.
ACB files that store their sounds inside.
The usual CRI codecs.
Decoded when the game's key is built in.
Usually point to an .awb. The message names that file so you can upload it instead.
Only the sounds stored inside the .acb are converted.
Only convert audio from games you own or have permission to use.
TROUBLESHOOTING
Game audio works differently from normal music files, which explains most surprises.
01
Most music .acb files only list sounds. Upload the .awb named in the message instead.
02
Streamed sounds live in the .awb. Convert it as well.
03
The file held several sounds, so each one became its own MP3, numbered in bank order. Sounds have numbers, not names.
04
Some games encrypt their audio with their own key. Files from the many games whose keys are built in decode normally; others can't be converted.
05
Looping game music is rendered the way the game plays it: the looped section plays once more, then fades out over 10 seconds. A loop covering the whole track plays once.
06
The file is damaged, isn't really ACB audio, or was extracted with the wrong tool. Extract it again from the game files and retry.
vgmstream is the reference decoder for game audio, used through foobar2000 or the command line. dragdropdo runs the same decoder in the browser, so you can turn ACB into MP3 on any device.
| What matters | dragdropdo | vgmstream and Desktop Tools |
|---|---|---|
| Nothing to install | ✓Yes. Runs in any modern browser. | ~foobar2000 plus the vgmstream plugin, or vgmstream-cli. |
| Works on phones and tablets | ✓Yes. Desktop, Android, iPhone and iPad. | ~No. Windows and command-line tools. |
| Batch conversion | ✓Yes. Add many files and download one ZIP. | ~Yes, with scripts or foobar2000's converter. |
| Share finished files | ✓Yes. Send a unique link from the result page. | ~You upload and share the files yourself. |
| Pricing | ✓Free with daily limits. $2.99 or $6.99 passes for unlimited use, no monthly plan. | ~Free. |
| Choosing loop count and fade | ✓Fixed: an inner loop plays twice, then fades over 10 seconds. | ~Yes. vgmstream-cli sets the loop count and fade length. |
Other tools use different pricing, limits and workflows. This comparison describes dragdropdo's own features without assuming every other tool works the same way.
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WHY DRAGDROPDO
Convert ACB to MP3 in your browser, with nothing to install and nothing kept after 24 hours.
Private by default
Files are encrypted in transit and deleted from our servers automatically after 24 hours.
No install required
Convert in any modern browser on Windows, Mac, Linux, Android, iPhone or iPad. No app and no sign-up wall.
Big files and batches
Upload files up to 20GB each, add several at once, and download the results one by one or as a ZIP.
Share & download
Save finished files to your device or pass them on with a share link from the result page.
MORE ACB TOOLS
In games, an .acb file is a cue sheet of CRI ADX2, the CRIWARE sound middleware used in many Japanese console, PC and mobile games. It lists the game's sound cues and can contain short sounds itself, usually as HCA or ADX audio, while longer music and voices are usually streamed from a companion .awb file.
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FAQ
Answers to common questions about dragdropdo's ACB to MP3 converter.
