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This topic comprises 2 pages: 1 2
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Author
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Topic: Blu Ray into HDMI
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Leo Enticknap
Film God
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Posts: 7474
From: Loma Linda, CA
Registered: Jul 2000
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posted 02-07-2015 12:54 PM
What's the sound on the BD, and what sort of audio processor are you using?
At one of our theaters, I have a BD player going into a cat745 thru HDMI, and the audio from the 745 to a CP650. If the disc has Dolby 5.1 or 7.1 on it and the player is set to use that, it plays OK. But if the disc only has DTS multi-channel sound, I can only get L/R stereo. To get the Dolby 5.1 or 7.1, I have to select bitstream audio out on the player, but if the disc is DTS only I have to configure the player to mix it down to 2.0 L/R, or else there is no sound at all (because the CP650 can't decode DTS).
At the other theater, we have two DVD/BD players (one for region A, the other for region B) going into an Intelix scaler, with the output from that going thru HDMI into an AP20. The AP20 can decode Dolby and DTS and automatically recognizes each one. But again, you have to select bitstream (in effect, audio data pass-through) on the players, or else again, you get L/R only.
For some reason, most consumer DVD/BD players seem to mix down the HDMI audio output to 2.0 L/R as a factory default setting, I'm guessing to minimize the number of "low information consumers" who would fail to get any sound when connecting them to a cheap TV that doesn't have Dolby and/or DTS decoding, and then return them to the store if the default was bitstream/pass-through and let the device on the other end decode the proprietary system compressed audio.
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