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XM Radio w/Digital output?

Discussion in 'Sirius XM General Discussion' started by jtullite, Aug 3, 2002.

  1. jtullite

    jtullite New Member

    Aug 3, 2002
    Newbie question: I'm thinking of purchasing an XM radio setup for home use. One of the main features I'm looking for is some type of digital audio output on the reciever -- either coaxial or optical. Do any XM recievers have this feature? I've been unable to find any mention of it on the models I've looked at.
  2. alv

    alv Godfather

    Aug 13, 2002
    I don't think any audio receivers handle the XM format so the point is moot.
  3. RJS1111111

    RJS1111111 Icon/Supporter DBSTalk Gold Club

    Mar 23, 2002
    XM format? Whazzat?

    Are you saying that it is encoded in a way that is intended specifically for analog output only?
  4. alv

    alv Godfather

    Aug 13, 2002
    No just that XM encodes there signal in some way that I don't know and that it is not PCM.
  5. Mike Walker

    Mike Walker New Member

    Oct 22, 2002
    WRONG Satellite Breath (alv). "XM Format" does use a lossy compression algorithm, but so does Dolby Digital, DTS, ATRAC, MP3, MP2, Real Audio, Windows Media, etc. This matters not a whit! The radio decodes the encoded bitstream back to pcm before decoding. This must take place, because (with the exception of the new, and still rare DSD "direct stream digital" converters), ALL digital to analog converters "speak" but one language...pcm (pulse code modulation, whether 16, 20, or 24 bits). In other words, in order to be converted into analog audio which we can hear, a compressed audio signal must first be "decompressed" into pcm. So a digital output on an XM radio would output PCM, just as a digital output on a minidisc deck or mp3 player (example: Archos Jukebox Recorder) outputs PCM!
  6. Scott Greczkowski

    Scott Greczkowski Banned User

    Mar 21, 2002
    Hey Mike, Welcome to SatRadioTalk.COM / DBSTalk.COM :hi:

    Silly question but are you the same Mike Walker of the "Mike Walker Game" fame from the Howard Stern Show and the National Enquirer?

    Anyways nice to have you here.
  7. Wyoming_Companion

    Wyoming_Companion AllStar

    Sep 16, 2002
    To people new to XM...my Sony Plug & Play came with cabling that takes the XM signal from the XM receiver to RCA inputs so that XM can be heard via audio receivers.

    This thread must refer to something else (mini plug to RCA jacks is NOT digital), but XM radio can be sent to your home audio receiver.


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