Normal
Hi.Pi can not recode DTS or DD to Stereo in realtime while playing Video, not enough power. Only Bitstreaming is possible. So you need a device that is able to decode DTS /DD itself (like an AVR) or a movie with (e.g.) Mp3 audio track to have audio available... Normal TVs can not play bitstreamed DTS alone, so you don't hear anything...
Hi.
Pi can not recode DTS or DD to Stereo in realtime while playing Video, not enough power. Only Bitstreaming is possible. So you need a device that is able to decode DTS /DD itself (like an AVR) or a movie with (e.g.) Mp3 audio track to have audio available... Normal TVs can not play bitstreamed DTS alone, so you don't hear anything...