Record with OBS Studio



With this setup you can record video and 5.1 or 7.1 audio at the same time. Connection diagram:

flowchart LR; Isolator["Ground Isolator"]; Capture["Video Capture"]; USBaudio["USB Audio"]; Box["Android TV"]; Box--HDMI-->NoHDCP; NoHDCP--HDMI-->BDP; BDP--"FL/FR C/SW SL/SR (6ch RCA)"-->Isolator; BDP--HDMI-->Capture; Capture--"PCI-e or USB"-->PC; Isolator--"FL/FR C/SW SL/SR (6ch RCA)"-->USBaudio; USBaudio--USB-->PC; click PC "#software"


  • The UDP needs to be set to Source Direct to pass through the video to the capture card.
  • Instead of this UDP you can utilitze any 5.1 pre-amplifier which supports an audio codec currently used by Netflix, Disney+, Amazon Prime, HBO Go, etc. If you use a pre-amplifier with variable output volume make sure you adjust the volume so you don't need to post-process amplification to it.
  • While Netflix has a desktop client from which you could separately record 5.1 audio, other streaming clients on Windows do not have this feature.


Desktop Audio 5.1

  • Video: none
  • Audio: Windows 10 App

FHD Surround 5.1 (Intensity Pro)

  • Video: Mi Box S → 40281 (HDMI) → Intensity Pro (HDMI)
  • Audio: Mi Box S → 40281 (SPDIF) → AVR-4308 (5.1 through Pre Out) to U86XT (Line IN 1-6)
  • Make sure you connect the U86XT through a Ground Loop Isolator to the AVR to avoid ground loop issues while recording
  • Set the AVR-4308 to volume -10 dB

VHS Stereo (Intensity Pro)

  • Video: HR-S6711EU (composite) → Intensity Pro (Y - green)
  • Audio: HR-S6711EU (stereo) → Intensity Pro (RCA)
  • Audio monitor: HR-S6711EU (stereo) → AVR-4308

OBS Studio


  • Output
    Hint: Chose Simple or Advanced, not both, then save. Simple is good for lossless recording of both video and audio. Advanced is only necessary for some special use cases.
    • Output Mode: Simple
      • Recording Path
      • Recording Quality: Lossless Quality
    • Output Mode: Advanced
      • Type: Custom Output (FFmpeg)
      • File path or URL
      • Container Format: matroska
      • Audio Bitrate: 256 Kbps
      • Audio Track: 1
      • Audio Encoder: pcm_s16le
  • Audio
    • Sample Rate: 48 kHz
    • Channels: 5.1 or Stereo
  • Video
    • Base (Canvas) Resolution: 1920×1080
    • Output (Scaled) Resolution: 1920×1080
    • Downscale Filter: [no downscaling required]
    • Common FPS Values: 60

Properties Intensity Pro 4K

  • Video Connection: HDMI
  • Audio Connection: Analog RCA (we do not record the audio stream)

Properties ESI U86 XT

  • Device: U86 Multichannel 8 (ESI Audio Device (WDM) - U86)
  • Advanced Audio Properties - Sync Offset: -120ms
  • Advanced Audio Properties - Tracks: 1


  • Limiter: Threshold -1.00 dB, Release 60 ms


  • Disable

How Tos