Originally Posted by Kei Clark
So you are using soundcards in all of your systems, and one (the MDP-120) does not output sound. Have you tried S/PDIF output of the card in any of those instances, rather than the sound card? I'm asking specifically about the audio from the MyHD in case there is a bug (lack of signal) so that I can report to MIT and see if it can be corrected. It would be ideal if we could analyze the stream.
I'm going to check this out more systematically later today, and I'll post back, but here are the basics:
I have three MyHD cards, 2 120s and 1 130.
System 1: MyHD 120 - has external USB Sound Blaster; MyHD audio coming from MyHD S/PDIF, not PC sound device. Normal .ts Dolby Digital audio plays through, HDV MPEG audio does not. When I press the audio button on the MyHD remote, I see MPEG audio listed as the only audio on the file, but no sound comes through. (I'm pretty certain the Sound Blaster audio device needs to be reinstalled, but I havn't had a chance to do that yet.)
System 2: MyHD 130 - has external USB Sound Blaster; MyHD audio coming from Sound Blaster S/PDIF, not MyHD S/PDIF. All MyHD audio (Dolby Digital and MPEG from HDV) plays, as well as system sounds.
System 3: MyHD 120 - uses onboard audio; MyHD audio coming from MyHD S/PDIF, not onboard audio device. All audio (Dolby Digital and MPEG from HDV) plays back.
The problem system is number 1. The strange thing is that it is connected through the MyHD S/PDIF output, not the Sound Blaster, and it plays DD sound but not MPEG audio from HDV files. Why DD sound is uneffected by the Sound Blaster problem I don't know.
Any .m2t file I've downloaded from the net acts the same way, as well as my HDV clips. MPEG audio doesn't play.
I'll test more thoroughly later, but all this may go away when I get the Sound Blaster device installed properly. (That's the problem, trying to find the current drivers for this SB device.)
Thanks for the feedback, Kei.