First, verify the DD settings on your HR10. Some outputs could be muted during true 5.1 broadcasts under some settings.
Audio is embedded in the video for digital transmissions (both OTA and DVB) so if there is a problem with just audio, it has to be after decoding takes place, making it more likely not a HR10 failure.
Audio is embedded in the video for digital transmissions (both OTA and DVB) so if there is a problem with just audio, it has to be after decoding takes place, making it more likely not a HR10 failure.