XM HD Surround Sound Channels- anyone currently listening? - AVS Forum | Home Theater Discussions And Reviews
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Old 03-19-2008, 10:23 AM - Thread Starter
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Hi everyone-

Recently got a new AVR that can decode the select XM radio HD channels that are broadcast in surround sound (mainly classical music from what I've read). I don't have the minituner for the AVR yet, so am curious if anyone has been able to check this out, and how 1) how good is the reception on the XM radio HD channels, and 2) what about the surround sound aspect of the music- what was your take on it? I'm not expecting anything even remotely like multichannel SACD or DVD-A, but am still curious b4 I go out an buy the addtl portable subscription and XM mini-tuner...

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Old 03-20-2008, 05:37 PM
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the reception is the same as the signal is digital.
I heard the sound demo at CES 2 years ago when they debuted the service.
It sounds great for classical music.
I assume they might expand the service more after a decision comes down regarding the proposed merger.
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Old 04-03-2008, 08:58 PM
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The technology is from DTS or Neo and uses 'spatial cues' in 2 channels. My Nexus 25 was $20 with a 1 month free. There are deals out there and the most it might cost you would be $13 if you were to buy an XM radio at Radioshack or Bestbuy etc and sign up..without using the free month. Now they no longer have free month unless you commit.

You can easily run the 2 channel output to your decoding unit and switch on DTS decoding or Neo decoding. I got a reply from Razer company who makes the AC-1 audio card. They say there's no reason their card , which decodeds DTS and Neo, shouldn't decode the 2channels into 5.1 or 6.1. -

I've searched for people who have done the testing but no one has yet. Sad because the DTS and XM are so readily available. The 2 channels of symphonic music (ch 111 I think) is quite good for its quality considering they've got 100 other channels squirting through their sats.

Sorry i can't offer more than encouragement. But we'll be watching.

Wikipedia has some good info on the DTS and Neo relationship. Perhaps someone can send you a 2 channel recording of the XM channel to determine what you can hear ! eh? Let's have you do that if you're up to it.


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Old 04-05-2008, 02:34 PM
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Originally Posted by MSDOS View Post

The technology is from DTS or Neo and uses 'spatial cues' in 2 channels.

The XM surround is from Neural, not DTS or Neo. A quick search of the XM website will tell you that.
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Old 04-17-2008, 08:02 PM
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only 2 channels

76 fine tuning and 113 pops.
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Old 07-09-2010, 05:11 AM
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There hasn't been much discussion about XM HD in a long time.

Is Sirius/XM Pops the only HD channel now? Is there any hope for more HD channels in the future or this a dying technology?
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