22-04-2023, 12:04 PM
As I understand it, AD works differently on satellite and DTT.
On satellite, AD is a completely separate audio track which usually includes the original audio but could be anything. This is mixed by the broadcaster, so this could be used to provide an AD commentary without the original commentary being included.
On DTT, the AD is sent along with the original sound track and mixed by the set top box. This can't be used for live AD as there is no way for the box to eliminate the original commentary.
This is why, when live AD has been done in the past, it's used a completely separate channel.
I don't know how it works on Cable, or ITVX, BBC iPlayer or any of your new fangled devices.
On satellite, AD is a completely separate audio track which usually includes the original audio but could be anything. This is mixed by the broadcaster, so this could be used to provide an AD commentary without the original commentary being included.
On DTT, the AD is sent along with the original sound track and mixed by the set top box. This can't be used for live AD as there is no way for the box to eliminate the original commentary.
This is why, when live AD has been done in the past, it's used a completely separate channel.
I don't know how it works on Cable, or ITVX, BBC iPlayer or any of your new fangled devices.