Sarnoff Test Sequence Generators with A/V Test Patterns for SD to 4K Video

Sarnoff test sequence generators banner

SRI offers content creators, broadcasters, and distributors a comprehensive solution for testing and verifying the quality of digital video signal chains up to 4Kp60. The Sarnoff® audiovisual test sequence generator combines acclaimed digital test patterns with uncompressed playback hardware.

The TG-400™ player handles formats up to 4Kp60. It is a one-rack-unit, uncompressed video player that output 10-bit digital video and up to 16 channels of embedded digital audio.

The standard player includes three powerful test suites: the Visualizer™ video test patterns, AudioRef™ advanced audio reference clips, and ESP™ encoder stress patterns. Options include support for High Dynamic Range (HDR)/Wide Color Gamut (WCG) and UHD/4K testing as well as HDMI 2.0 output with HDR/WCG signaling for PQ and HLG. Users can also load their own content for testing. The result is a comprehensive, convenient, and cost-effective solution for quality control.Test Content:

Visualizer™ Digital Video Test Pattern 

  • Quantifies compression fidelity
  • Identifies color matrix mismatch (2020/709/601)
  • Determines bit depth and chroma subsampling
  • Reveals skipped frames
  • Quantifies lip sync errors
  • Provides 18 additional tests
  • Available in High Dynamic Range ( HDR ) / Wide Color Gamut ( WCG ) and Standard Dynamic Range (SDR) version in the following color spaces:
    • PQ/2020, HDR10 (SMPTE ST-2084, ITU BT.2100)
    • HLG/2020 (ITU BT.2100)
    • S-Log3
    • P3, P3D65
    • 709
    • 601
    • ACESProxy
    • Log-C
    • Any other color space
    • AudioRef™ Audio Reference Clips
  • Provides dialog loudness reference
  • Supports CALM act compliance
  • Audibly confirms channel ID by number and function
  • 16 channels embedded in HD-SDI

ESP™ Encoder Stress Pattern

  • Evaluates SD,HD and UHD/4K encoder quality
  • Effective with all compression standards such as HEVC/H.265, MPEG-4/AVC/H.264, MPEG-2, ProRes, VP9, etc.
  • Assists in selecting and tuning encoders
  • Provides visual verification of encoder performance
  • Reveals limits in spatial resolution, judder, dropped frames, and more

Color Space and Monitor (CSM) Test Pattern Suite

  • Reveals how entire digital video processing systems and monitors deal with HDR and WCG content
  • Examines color space interpretation
  • Evaluates low light details
  • Reveals HDR tone mapping accuracy


Read more from SRI

  • Banner and attendees at the IEEE Hard Tech Venture Summit

    Cultivating hard tech startups that scale

    IEEE’s Hard Tech Venture Summit convened innovators at SRI to refine strategies and build new networks.

  • Patient going into a MRI

    Bringing surgical tools inside the MRI

    Drawing on SRI’s unique innovation ecosystem, the startup Medical Devices Corner is seeking to improve cancer surgery by advancing MRI-safe teleoperation.

  • Christopher Mims and Susan Patrick

    PARC Forum: How to AI

    The Wall Street Journal tech columnist Christopher Mims and SRI Education’s Susan Patrick discuss how AI can strengthen human agency.