Audio-Video Sync Issue While Recording Adobe Connect Sessions

Nekkuo

New Member
Hi OBS Team,


I’m experiencing persistent audio delay issues when recording Adobe Connect sessions. Here’s a summary of my setup and steps taken so far:


  • System: Windows 10, NVIDIA GeForce GT 730, 16GB RAM
  • OBS Version Tested: 31.1.2, 27.2.4, and 32.0.0 Beta 2
  • Recording Settings:
    • Encoder: x264 (Software)
    • Resolution: 1366x768 / 1280x720
    • FPS: 60
    • Rate Control: CBR / ABR / CRF (all tested)
    • Audio Capture: Virtual Cable (VB-Audio)
    • Desktop Audio: Disabled / Enabled (both tested)
  • Problem Description:
    Audio and video are in sync at the beginning, but after ~1/3 of the recording, audio gradually lags behind. This occurs even in recordings as short as 10–12 minutes.
  • Steps Tried:
    • Different OBS versions (including beta)
    • Reinstalling OBS on M.2 SSD
    • Testing with both built-in Windows audio and VB-Audio Virtual Cable
    • Using different encoders, FPS, and rate control settings
    • Testing with Adobe Connect web version and desktop app
    • Ensuring no other apps running in background

Logs: (optional, attach OBS logs for affected recordings here)


Could you advise on a solution or workaround to completely fix this issue?


Thanks in advance!
 
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