Global Home Support > Digital AV > TV > VIERA Global FAQs > In some programs or channels, there is no sound from the digital audio output. However, the digital audio output returns when a different program is on. Why?

Q14. In some programs or channels, there is no sound from the digital audio output. However, the digital audio output returns when a different program is on. Why?

Answer:

Depending on the TV program, the owner of the source material may require the digital audio portion to be copy protected. In some cases, upgrading the TV's software may also be needed.