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Re: [Help] Some audio tracks are not available

Posted: 25 Apr 2026, 16:27
by EriChan
Regarding the issue you encountered, here are detailed explanations and recommendations:

About the "Errors" in System Logs

These log entries are routine diagnostic records in the TOS system, not caused by hardware failures or configuration errors:
  • Parsing Errors: These are parsing notifications generated when the mediaindex service processes legacy configuration files. The system automatically skips invalid entries and uses correct parameters, which does not affect DLNA functionality.
  • SQL Notices: Messages indicating "relation already exists" confirm that the index database structure is intact and represent normal operation.
  • Resolution: These logs are generated by the system's core logic. No manual intervention is required or possible from the user side, and they do not consume additional resources.

How to Use mediainfo to View Audio Track Information

1. Preparation
  • Connect to NAS: Ensure your computer has mounted the NAS shared folder via SMB protocol (enter \\TNAS_IP in Windows Explorer).
  • Download tool: Download and install MediaInfo on your computer (supports Windows and macOS).
2. Operation Steps
  • Launch MediaInfo.
  • Click File > Open > File and select the movie file on your NAS that experiences the "cannot switch audio track" issue.
  • Switch the view to "Tree" or "Text" for easier inspection:View > Tree
  • Scroll down to locate the "Audio" section. Multiple audio tracks will appear as Audio #1, Audio #2, etc.
3. Key Diagnostic Points
Focus on these three indicators, which are typically the root cause of Samsung TV's failure to detect audio tracks:
  • Format: If the format is DTS, TrueHD, or E-AC-3, many smart TV DLNA clients will filter them out due to licensing or hardware decoding limitations.
  • Title / Language: Verify if audio tracks contain language tags.
  • Default: Check if any track is marked as Default: Yes. Some TVs only recognize the default audio track.

Final Recommendation (for Multi-track)

If mediainfo shows the file contains multiple audio tracks but the TV still cannot switch, this limitation stems from the DLNA protocol itself.
Recommended solution: Install a third-party media player with robust decoding capabilities (such as Kodi) on your TV and connect to the NAS via SMB/NFS protocol. This approach fully supports multi-track switching while bypassing DLNA limitations.