DTS MA and TrueHD downsample, totalmedia theater - AVS Forum
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post #1 of 6 Old 04-24-2013, 04:56 PM - Thread Starter
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Hi guys!

Having a bit of trouble with totalmedia theater 5 downsampling the audio.

Now, I don't have a card that supports bit streaming, but I have heard that I am able to get uncompressed pmc. When I play a movie in totalmedia theater 5, I only got downsampled 48kHz, 16-bit dts and dolby?

What would I have to do to get uncompressed pmc in totalmediatheater? I am running a laptop with an hdmi to my onkyo ht- r558 receiver with a 5.1 setup.

Also, is there really a big difference between downsampled dts/dolby and dts ma/true hd?
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post #2 of 6 Old 04-24-2013, 06:51 PM
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What is the model number of the laptop you're using?
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post #3 of 6 Old 04-24-2013, 06:58 PM
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Without a protected audio path, PowerDVD and TMT will send out lossy audio or downsampled multichannel pcm.

The model of your laptop is very important in order to determine if you can send out hi-res audio.

Depending on the quality of your HT system and the source material, there can be a noticeable improvement with DTS-HD MA and Dolby TrueHD over DD/DTS.
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post #4 of 6 Old 04-24-2013, 07:30 PM
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No support for HD audio bitstreaming = no protected audio path = all decoded LPCM will be downsampled to 48kHz 16bit.

A workaround is use a non-AACS player such as MPC-HC, along with LAV Audio Decoder + dtsdecoderdll.dll (a DTS decoder included in TMT). (LAV Audio Decoder can decode TrueHD, but can decode DTS-HD only with dtsdecoderdll.dll.)
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post #5 of 6 Old 04-25-2013, 01:39 AM - Thread Starter
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My laptop is a HP Pavilion dv7-3190EM .

Intel Core i5 430M 2,27Ghz, 3MB L2

4096MB DDRIII 1067MHZ

640GB (2x320) SMART SATA 5400rpm

nVidia GeForce GT320M 1GB DDR3


Strange thing is, when I played a file on VLC, I checked the info and it said pmc, but it said 2 chanel pmc and next to it, it said 5.1 ch stereo?

So I was getting some weird sound on that, I figured it was due to player configuration, so I switched to totalmedia theate 5 and the sound is amazing, but, like I said, it downsamples the to 16bit and stuff.
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post #6 of 6 Old 04-25-2013, 06:57 PM
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The nVidia doesn't support bitstreaming HD audio so you'll be limited to downsampled audio.
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