Room-to-Room Videoconferencing
CODECs: Translation
- Video signals from cameras are analog
- CODEC converts to digital for transmission on a digital line
CODECs: Compression
- Videoconferencing codecs also compress the digital signal
- Lose quality at high compression: grainy pictures, jerky motion, buzzy sound
- Good at T1, fractional T1
- Marginal at 64 kbps