How to Fix Audio and Video Sync Issues of RTMP Encoder Stream?

Fixing Audio and Video Sync Issues of RTMP Encoder Stream:

Audio and video sync issues can stem from quality problems or misconfiguration. However, there's no need to worry because you can always resolve these issues.

Check Your RTMP Encoder Setup:

1. Ensure the correct video and audio devices are selected in your encoder's settings.

2. Set your audio to use the AAC codec at a frequency of 44.1 kHz. Avoid using 48 kHz, as it can cause sound issues on certain devices or services.

3. If the issue persists on specific streaming services, verify that your audio settings comply with their requirements.

Conduct a Test Recording:

1. Record locally using your RTMP encoder.

2. If the local recording shows synchronization issues, it may indicate incorrect setup or malfunctioning audio sources. In such cases, try the following steps:

• Access your encoder's audio mixer or advanced audio properties and adjust the audio sync offset.
• Experiment with both positive and negative offsets (e.g., +200 and -200) to determine the optimal value.
• Adjust the offset higher or lower based on the observed results.
  

3. If synchronization issues occur during the stream but not in the local recording, investigate potential network or CPU performance issues.

Perform a reset:

1. Restart all software and hardware components in your setup, such as your laptop, external microphones, or encoder. This can effectively resolve occasional synchronization issues.

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Updated on: 03/07/2025