Clean switching

Switching between different sources without undesirable artifacts. May also be referred to as quiet switching (for audio) or clean and quiet switching. Further distinguished by:

• Electrically clean switching: The switch does not cause interruptions in the SDI (MADI, AES3, …) data stream, downstream devices do not lose SDI (MADI, AES3, …) lock, a wave form monitor or audio monitor does not show an error.
• Visually clean switching: The switch is electrically clean and without any visible / audible artifacts.
  • Visually clean switching with freeze frames: The switch is electrically and visually clean , however, it is possible to observe freeze frames of the previous content (or silence, for audio) during the switch.
• Make-Before-Break: A specific way to implement switching between streams in the network, where first the new stream is received in parallel to the old stream (resulting in double bandwidth use), then the switch is performed, then the old stream is disconnected
• Break-Before-Make: A specific way to implement switching between streams in the network, where first the old stream is disconnected (to avoid double bandwidth use) while holding a freeze of the last frame, then the new stream is connected, then the switch is performed