Samsung DVD-R155 will not play in Dolby Digital surround sound

I'm looking for advice as to the best Bose input for SACD (contains 5.1 information) captured to FLAC and played back by computer (Analog Line out currently but considering adding digital out): 1. Bose Aux in 2. Bose Digital in Regarding option 1. The Bose manual states the following which makes me think that Aux is the right decision: Setting up a digital sound source Connect a DTV or DVD player's digital signal directly to the female RCA jack on the audio input cable. Connect the DVD player's analog signal output to the AUX inputs. If your Lifestyle® system receives a valid digital signal (including PCM or Dolby Digital bitstreams), this digital sound is used. If no valid digital signal is received, then your system selects the analog signal being sent to AUX, which is then processed by the Videostage® decoder for excellent home theater sound. If your digital audio source has an optical connector, you will need an adapter with an RCA (coaxial) connector. Consult your dealer or contact Bose® Regarding option 2. I've read the following (not in Bose manual): A coaxial digital audio connection is used to send S/PDIF digital audio signals between devices. It supports uncompressed PCM stereo audio as well as DTS and Dolby Digital 5.1/7.1 surround sound signals. It does not support DVD-A, SACD or high-definition audio such as DTS-HD Master Audio and Dolby TrueHD. So in summary: The Aux in is analog but processed by the Videostage® decoder. The Digital in supports 5.1 and should be cleaner/quieter being digital I expect. I'd be interested in onions from other that know for sure what's better or have done this. thanks

If you are playing media that has both dolby digital audio and dts audio, your player and your receiver will decode the first audio codec listed first by default unless you select it otherwise yourself. If your remote or receiver has an A.F.D. (auto format decode) button, press it until your display shows that the sound source is dolby digital or DTS, whichever sound mode it was you wanted when you started your DVD.

The problem sounds like it is the dvd player, have you set-up the audio output menu on the dvd players setup menu? Some dvd units default to a 2 channel stereo output, what is required is you need to enter the setuo menu and enable a dolby digital 5.1 output or the DTS/Bitsteam audio output option. Also be sure to use a digital signal cable connection.

In the menu is an option for switching master and true hd on. Standard its of and played als normal dts/dolby.

also: check the input (blu ray?): maybe it is set to only output no high def signals, so the amlifier doest recieve hd sound..

Igor

You need to check 3 things:

1) DTS will only work through a digital connection (coaxial, optical, or HDMI) between your receiver and dvd player. DTS and Dolby 5.1 cannot carry a signal over red and white rca connections.

2) After number 1 is solved ensure the reciever is set to the digital channel, your DTS-HD in this case, or in an auto mode.

3) Finally the most important is that the signal is a DTS signal. Start a DTS capable dvd, go to the sound menu and set it for DTS.

Press play and all should be well...

Cheers,

NTIMID8

kindly check digital settings on your dvdplayer. The output should be in digital domain. Are u using original dts audiocd or burn dts audiocd.

For dolby digital to work you have to have the optical or coax cable hooked up to the reciever ,The HDMI cable is for digital video and audio output but does not support dolby digital out the cable into your reciever , so just turn off the dolby digital on your reciever and you should hear the sound.
here is more info

Dolby TrueHD is an advanced lossless multi-channel audio codec developed by Dolby Laboratories which is intended primarily for high-definition home-entertainment equipment such as Blu-ray Disc. It is the successor to the AC-3 Dolby Digital surround sound codec which was used as the audio standard for DVD discs. In this application, Dolby TrueHD competes with DTS-HD Master Audio, another lossless codec from Digital Theater System.
Dolby TrueHD uses Meridian Lossless Packing (MLP) as its mathematical basis for compressing audio samples. MLP was used on the earlier DVD-Audio format, but details of TrueHD and DVD-Audio differ substantially. A Dolby TrueHD bitstream can carry up to 14 discrete sound channels. Sample depths up to 24 bits/sample and audio sample rates up to 192 kHz are supported. Like the more common legacy codec Dolby Digital, TrueHD bitstreams carry program metadata. Metadata is separate from the coding format and compressed audio samples, but stores relevant information about the audio waveform. For example, dialog normalization and Dynamic range compression are controlled by metadata embedded in the TrueHD bitstream.

Your amplifier should "downgrade" the signal to 5.1, even if the disc isn't using it. It is most likely a setting on your amp that may need adjusting for "types" of digital to accept on its input. If you can, set your optical input on your amp to "auto". This way it will automatically detect and switch for the proper incoming audio feed