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How to Fix "Assertion Failed - Sound Buffer Error"

Simple Steps to Fix the Problem

1. Restart Your Computer

  • Close all applications and restart your PC.
Why? This clears temporary software glitches that may cause sound buffer errors.

2. Update Audio Drivers

  • Press Win + X > Device Manager
  • Expand Sound, video and game controllers
  • Right-click your audio device > Update driver > Search automatically
Why? Outdated drivers often cause buffer management issues.

3. Change Audio Format Settings

  • Right-click the speaker icon > Sounds > Playback tab
  • Double-click your default device > Advanced tab
  • Try different formats (e.g., 16-bit, 44100 Hz)
Why? Incorrect formats can cause buffer boundary errors.

4. Close Background Audio Applications

  • Open Task Manager (Ctrl+Shift+Esc)
  • End tasks for any audio-related programs (DAWs, voice chat, media players)
Why? Conflicting audio apps may overload the sound buffer.

5. Reinstall Problematic Audio Software

If the error occurs with specific software:
  1. Uninstall it via Settings > Apps
  2. Download the latest version from the official website
  3. Reinstall as administrator
Why? Corrupted audio plugins or components cause buffer errors.

6. Run System File Checker

  • Open Command Prompt as admin > type: sfc /scannow
  • Restart after completion
Why? Repairs corrupted system files that may affect audio processing.

What Causes This Error?

  • Audio driver conflicts or outdated versions
  • Software trying to access invalid memory locations in audio buffers
  • Corrupted system files affecting sound processing
  • Incompatible audio sample rates between applications

How to Prevent Future Issues

  • Keep audio drivers updated (check manufacturer website monthly)
  • Avoid running multiple audio-intensive apps simultaneously
  • Use recommended audio formats (typically 16-bit/44100Hz for most users)

If the problem persists after trying these steps, consider:

  • Testing with different audio hardware
  • Performing a clean boot to identify conflicting software
  • Contacting the software developer with the exact error details

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