2014Video Assist and Video Accessories forum
Wireless video transmission technology choices and latency performance for professional on-set use
12 years old. Gear and prices may have changed since.
What the thread found
- WHDI technology offers minimal latency but comes at premium cost
- WiFi-based solutions typically involve compression codecs like H.264 which introduce both latency and quality loss
- WiFi bands are susceptible to interference from consumer devices in shared frequency ranges
- Professional on-set applications require reliable uncompressed video transmission with SDI connectivity
- Achieving sub-10ms latency with encoded video remains technically difficult and requires significant development investment
- Current realistic targets for encoded wireless systems are around 30ms latency
- H.264 encoding systems can achieve approximately 40ms latency as a practical lower threshold
- Some manufacturer implementations of encoded systems have demonstrated latency around 12 milliseconds
- WHDI-based systems can achieve latency below 1 millisecond
Depends on
- The discussion mixes consumer and professional applications which have different requirement levels
- Some performance claims from manufacturers were not independently verified by all participants
- Specific chipsets and their capabilities were mentioned but not thoroughly detailed
- The conversation occurred in 2014 so codec and wireless technology options may have evolved