You set a custom notification sound in Discord, but the sound does not play when you receive a message. This problem often occurs because Discord saves the custom sound file in a browser cache or because the file format is not supported. This article explains why custom sounds fail and provides step-by-step fixes to get them working again.
Key Takeaways: Fixing Discord Custom Notification Sounds
- User Settings > Notifications > Sounds > Custom Notification Sound: Upload a supported audio file (MP3, WAV, or OGG) under 512 KB
- Clear Discord Cache: Delete the
%appdata%/discord/Cachefolder to remove corrupted cached sound files - File Format and Size: Use a file no larger than 512 KB and in MP3, WAV, or OGG format to ensure playback
Why Discord Custom Notification Sounds Fail
Discord allows you to set a custom sound for incoming direct messages and mentions. When you upload a file, Discord stores it in a local cache folder. If the cache becomes corrupted, the file is too large, or the format is unsupported, Discord falls back to the default notification sound instead of playing your custom one. The most common root causes are:
File Size and Format Restrictions
Discord accepts only MP3, WAV, and OGG audio files. The file must be under 512 KB. Any file larger than that will be rejected silently, meaning Discord will not play any sound. If you use a format like AAC, FLAC, or M4A, Discord will not play the file at all.
Corrupted Cache
Discord caches uploaded custom sounds in the %appdata%/discord/Cache folder. If this folder contains outdated or corrupted files, Discord may ignore your custom sound and use the default. Clearing the cache forces Discord to reload the sound file.
Browser Version Limitations
If you use Discord in a web browser, custom notification sounds do not work. The feature is only available in the desktop app for Windows, macOS, and Linux. Browser versions of Discord ignore custom sound settings entirely.
Steps to Fix Custom Notification Sound Not Playing
Follow these steps in order. Test the sound after each step by asking a friend to send you a direct message or mention.
- Check File Format and Size
Right-click your audio file in File Explorer and select Properties. Under the General tab, verify the file size is under 512 KB. Under the Details tab, check the audio format. If the format is not MP3, WAV, or OGG, convert the file using a free audio converter like Audacity. Keep the file short — a 2-second beep is usually enough. - Re-upload the Custom Sound
Open Discord and go to User Settings > Notifications > Sounds. Under Custom Notification Sound, click the Upload button. Select your converted file. Then click the Test button next to the upload area. If you hear your sound, the fix is complete. If not, proceed to the next step. - Clear Discord Cache
Close Discord completely. Press Windows key + R, type%appdata%/discord, and press Enter. Delete theCachefolder. Also delete theCode Cachefolder if it exists. Restart Discord. The app will recreate these folders automatically. Re-upload your custom sound in User Settings > Notifications > Sounds and test it. - Disable Hardware Acceleration
Go to User Settings > Advanced. Turn off Hardware Acceleration. Click Okay to confirm. Restart Discord. This setting can interfere with audio playback on some systems. Test your custom sound again. - Reset Voice Settings
Go to User Settings > Voice & Video. Scroll to the bottom and click Reset Voice Settings. This resets all audio settings to defaults, which can fix playback issues. Re-upload your custom sound and test it.
If Discord Still Has Issues After the Main Fix
Custom Sound Plays Only Once
If your custom sound plays the first time but then stops, the file may be corrupted in the cache. Follow Step 3 above to clear the cache. Then re-upload the sound file.
No Sound at All for Any Notification
Check your system volume and Discord volume. Open Discord, go to User Settings > Voice & Video, and ensure Output Volume is at 100%. Also check that Discord is not muted in the Windows Volume Mixer. Right-click the speaker icon in the system tray, select Open Volume Mixer, and confirm Discord is not muted.
Custom Sound Works on One Server but Not Another
Custom notification sounds apply only to direct messages and @mentions, not to specific server channels. If you want a sound for a particular server, you must set it as a server-specific notification sound. Go to the server name, right-click, select Notification Settings, and under Server Notification Sound, choose your custom file.
Discord Notification Sound Options: Default vs Custom vs None
| Item | Default Sound | Custom Sound |
|---|---|---|
| Availability | Always works | Desktop app only |
| File size limit | None | 512 KB maximum |
| Supported formats | Built-in system sound | MP3, WAV, OGG |
| Cache required | No | Yes |
| Can be set per server | No | Yes |
You now know why custom notification sounds fail and how to fix them. Start by checking the file size and format, then clear the Discord cache if needed. For persistent issues, disable hardware acceleration or reset voice settings. Remember that custom sounds work only in the desktop app, not in a browser. If you use multiple servers, set a custom sound for each server individually in the server notification settings.