The start and end of the Guide and Dub Input Process Control Blocks define the range of the audio above the blocks that will be processed. If there is no audio above Dub Process Control Block, no audio is being input to the process.
The start and end of the Guide and Dub Input Process Control Blocks define the range of the audio above the blocks that will be processed. If there is no audio above Dub Process Control Block, no audio is being input to the process.