Why Did My OBS Recording Quality Suddenly Get Worse?
If OBS recording quality suddenly drops while your visible settings look unchanged, verify what the encoder actually produced: resolution, frame rate, codec, quality control, and file size. A major change in file size is a useful clue because quality-based recording settings can directly change how much data is written.
A user in this OBS quality-drop case from Reddit normally recorded 1440p60 gameplay at roughly 70–100 GB for one to two hours, but recent recordings fell to around 20 GB and looked noticeably lower quality even though the user believed the OBS settings had not changed.
Verify What OBS Is Actually Encoding
OBS's advanced recording settings guide recommends quality-based values such as CQP for NVENC and explains that lower CQP values generally produce higher quality and larger files. A large file-size drop therefore makes it worth checking the encoder path rather than relying only on the settings screen.
Check These First
- Recorded resolution and frame rate: inspect the actual finished file, not only the Base and Output values shown in OBS.
- Encoder and rate control: confirm OBS is still using the expected NVENC/AMD/QuickSync encoder and quality mode.
- Rescaling: make sure the recording is not being resized twice or sent through a different output path.
- File size change: compare a short new recording with an older recording of similar content and duration.
Reset to a Known Recording Baseline and Retest
OBS's standard recording output guide provides a simpler baseline for recording quality. Make a short test using a known preset, then compare the resulting resolution, motion clarity, and file size with the recent low-quality recordings.
If the new test returns to normal quality, keep troubleshooting the encoder/output configuration that changed. If new recordings remain consistently soft despite correct output settings, the issue stays in the capture/encoding path.
Enhance an Important Recording That Is Playable but Low Quality
If an existing OBS recording plays normally but is noticeably softer, blurrier, noisier, or lower-detail than expected, Wondershare Repairit AI Video Enhancer can improve the finished footage with sharpening, denoising, and upscaling.
Use enhancement for the existing low-quality footage, while fixing the OBS output path prevents the same quality drop from affecting future recordings.
