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joris 14 Apr @ 8:18am
Steam Game Recording Audio Delay
So I have been having some issues with the audio being out of sync on recordings made by the background recordings on steam, sometimes the delay is half a second, other times it's up to 4-5 seconds.

Example
https://youtu.be/6-iGOzB_gls

MediaInfo Details
This was taken from a .mp4 exported from with the "Original" quality preset, but the delay is also present when viewing the background recording/clip before exporting.

General Complete name : D:\Counter-Strike 2 - 2025-04-01 12-20-24.mp4 Format : MPEG-4 Format profile : Base Media Codec ID : isom (isom/iso2/avc1/mp41) File size : 53.2 MiB Duration : 20 s 211 ms Overall bit rate mode : Variable Overall bit rate : 22.1 Mb/s Frame rate : 60.000 FPS Writing application : Lavf61.1.100 Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : High@L5.1 Format settings : CABAC / 4 Ref Frames Format settings, CABAC : Yes Format settings, Reference frames : 4 frames Codec ID : avc1 Codec ID/Info : Advanced Video Coding Duration : 20 s 170 ms Source duration : 20 s 166 ms Bit rate mode : Variable Bit rate : 21.9 Mb/s Maximum bit rate : 44.0 Mb/s Width : 1 920 pixels Height : 1 440 pixels Display aspect ratio : 4:3 Frame rate : 60.000 FPS Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.132 Stream size : 52.8 MiB (99%) Source stream size : 52.8 MiB (99%) Color range : Full Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 mdhd_Duration : 20168 Codec configuration box : avcC Audio ID : 2 Format : AAC LC Format/Info : Advanced Audio Codec Low Complexity Codec ID : mp4a-40-2 Duration : 20 s 211 ms Source duration : 20 s 203 ms Bit rate mode : Constant Bit rate : 170 kb/s Channel(s) : 2 channels Channel layout : L R Sampling rate : 48.0 kHz Frame rate : 46.875 FPS (1024 SPF) Compression mode : Lossy Stream size : 419 KiB (1%) Source stream size : 419 KiB (1%) Default : Yes Alternate group : 1


If you look at the Audio section at the bottom, you can see that the audio frame rate is listed as 46.875 FPS, while in the Video section the FPS is 60.000 FPS. I think this may be the cause of the delay but I have no idea how to fix it.

Encoder overload shouldn't be the issue, I have no other applications encoding video streams on my PC. My Primary Audio Device is set to 32 Bits @ 192Khz, changing this to 24 @ 48 Khz or 44.1 Khz has not made a difference.

Specs
  • Ryzen 7950X3D
  • 32GB @ 6000MHZ
  • NVIDIA RTX 4070 TI Super (Driver: 572.83)
  • Windows 11 Pro 24H2 OS Build 26100.3775
Steam About Page
Steam Beta Branch: Stable Client
Steam Version: 1743554648
Steam Client Build Date: Wed, Apr 2 3:26 AM UTC -08:00
Steam Web Build Date: Wed, Apr 2 2:34 AM UTC -08:00
Steam API Version: SteamClient022
Last edited by joris; 14 Apr @ 8:27am
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mccluckers 27 Apr @ 7:45pm 
+1!!!!

I also had this issue. Valve please fix

Thanks for telling us what the audio fps was, as at least knowing that should make fixing the desync much easier in some editing software
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Date Posted: 14 Apr @ 8:18am
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