Originally Posted by BulkHedd
I have noticed that my receiver indicates that the KHBS HD audio is not 5.1, even though, according to ABC, it's supposed to be. KFSM's shows are in 5.1.
I am watching via my Cox DCT-6412 HD DVR.
Since you just re-broadcast the raw ABC HD feed, shouldn't the audio be 5.1 surround?
ARXAW is correct. All ABC is doing is providing the sound channels even though they say 5.1, it isn't. The program stream comes from ABC via satellite encrypted, in yet another compressed format not viewable by anything standard. The station must decode it into HD serial video and buy a special decoder to break out six discrete serial audio channels. At the DTV Encoder the HD serial video gets turned into MPEG2. The audio channels must pass through a dolby 5.1 encoder where it is recombined into a single audio data stream and sent to the DTV encoder where it is combined with the MPEG video, without loosing lip sync even though the audio and video are taking different paths and have different delays. It's a mess. We do not have the ABC decoder or the dolby 5.1 encoders, the equipment to delay the audio or the video, whichever is leading, to get them back in sync. I have entered a request for them in the 2007 budget. We will know if Hearst-Argyle management approves it sometime in August. If approved it would be sometime after April 2007 before it is purchased, installed and on the air.
A little more insight on ABC. Back in the good old days, the network saw it as their responsibility to get their signal to the affiliate. Now days, ABC has taken the attitude that it is only their job to provide us with the SD signal. Even then, we had to buy the SD equipment up front and allow ABC to reimburse us for it over 8 years. Anything besides SD is at our own expense. So we fully have to buy everything that has to do with HD, Surround sound, Spanish on SAP (which we have considered), or anything else we want to add on for our viewers.