Audio, Video, VANC, Lip-Sync Monitoring & Alarming Solutions
Head End Operations Live Monitoring
Long Duration Manufacturing Video QA
Synopsis
Monitor audio quality, video quality, and A/V sync (lip-sync). Alarm when the quality drops below a threshold or if the lip-sync error grows.If You are Only Testing Your Data Streams, then You are Not Testing What Your User Sees.
Products Designed for this Test
Testing Steps
In Real-Time reads 2 HD-SDI inputs
- Dynamically Aligns
- Measures (and Reports) A/V Quality
- Measures (and Reports) Audio Delay and Video Delay
- Compares VANC data lines
- Alerts if A/V Quality Drops, VANC lines are Missing Data, or Lip-Sync Issues
- Saves Sequences around each Alert
- Controlled from SNMP, Command Line, or GUI
White Papers
Theories & Thoughts
- Why Monitor?
- PSNR, JND, and DMOS Compared
- Objective Picture Quality Assessment
Case Studies
- Head End Operations' Monitoring
- Manufacturing Video Quality Monitoring
- Subjective Measurements Techniques
- Objective Picture Quality Assessment
Perceptual Metrics
- University of Texas' MS-SSIM Description
- Sarnoff Algorithm White Paper
- The JND Scale
- The DMOS Scale
Documents
DataSheets
User Manuals
Application Notes