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Thread: Digital Radio help!

  1. #11
    Join Date: Nov 2008

    Location: North Down /Northern Ireland/ UK

    Posts: 19,484
    I'm Neil.

    Default Thank You

    Thank you Brian PM read and replied to.


    Regards D S D L---Neil
    Regards Neil

  2. #12
    Join Date: Jan 2009

    Location: Brisbane, Australia

    Posts: 77

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    Hi Brian and Neil,
    Thanks for the suggestions. I haven’t investigated internet radio (by Squeezebox or similar).
    Does it consume a lot of download capacity, subject to ones internet download limit contract (which vary from country to country). For example if one listened to internet radio continually at work, 8-10hrs/day, would that be a large download?
    Granville

  3. #13
    Join Date: Nov 2008

    Location: North Down /Northern Ireland/ UK

    Posts: 19,484
    I'm Neil.

    Default Good Question

    Hi Granville.


    Thats a very good question, I can't answer. Would anyone like to answer that one ?


    Regards D S D L---Neil
    Regards Neil

  4. #14
    Join Date: Oct 2008

    Location: Southampton, UK and Nicosia, Cyprus

    Posts: 1,139

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    Some basic arithmetic:

    A 128 Kb/s stream results in a download of

    128 * 60 * 60 = 460 800 Kbit/hour ie 460.8 Megabit/hour

    8 bits to a byte

    (128 * 60 * 60) / 8 = 57 600 Kilobyte/hour or 57.6 Megabyte/hour

    Is that right?
    Brian

    In Southampton: Raspberry Pi 4 running PiCorePlayer, Beresford Caiman SEG, Quad 77 Int Amp and CD Player, AVI Neutron 4, Sennheiser HD25 headphones.
    In Nicosia: Small Format HTPC, Beresford 7520 ,Quad 405-2, Quart 980s German Tower Loudspeakers.

  5. #15
    Join Date: Nov 2008

    Location: Valley of the Hazels

    Posts: 9,139
    I'm AMusicFanNotAnAudiophile.

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    Quote Originally Posted by Labarum View Post
    Some basic arithmetic:

    A 128 Kb/s stream results in a download of

    128 * 60 * 60 = 460 800 Kbit/hour ie 460.8 Megabit/hour

    8 bits to a byte

    (128 * 60 * 60) / 8 = 57 600 Kilobyte/hour or 57.6 Megabyte/hour

    Is that right?
    Just ran same calculation with the relevent noughts included, and my result is the same as yours - 57.6 MB/hour

    Chris

  6. #16
    Join Date: Oct 2008

    Location: Southampton, UK and Nicosia, Cyprus

    Posts: 1,139

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    Yes, I was confident of the arithmetic. It's the physics that may be at fault. Are there streaming overheads I have not accounted for?

    But surely the answer will be of that order of magnitude?
    Brian

    In Southampton: Raspberry Pi 4 running PiCorePlayer, Beresford Caiman SEG, Quad 77 Int Amp and CD Player, AVI Neutron 4, Sennheiser HD25 headphones.
    In Nicosia: Small Format HTPC, Beresford 7520 ,Quad 405-2, Quart 980s German Tower Loudspeakers.

  7. #17
    Join Date: Nov 2008

    Location: Valley of the Hazels

    Posts: 9,139
    I'm AMusicFanNotAnAudiophile.

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    There are no additional streaming overheads AFAIK.

    Chris

  8. #18
    Join Date: Oct 2008

    Location: Southampton, UK and Nicosia, Cyprus

    Posts: 1,139

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    Quote Originally Posted by Stratmangler View Post
    There are no additional streaming overheads AFAIK.
    I offered my calculation up for scrutiny on the Squeezebox forum. One of the product designers confirms I have it right - can't get a better authority than that!

    57.6 MB/hour for a 128 Kb/s stream. Some of the stations I listen to are 256 and one is 320!

    I have the bandwidth . . .
    Brian

    In Southampton: Raspberry Pi 4 running PiCorePlayer, Beresford Caiman SEG, Quad 77 Int Amp and CD Player, AVI Neutron 4, Sennheiser HD25 headphones.
    In Nicosia: Small Format HTPC, Beresford 7520 ,Quad 405-2, Quart 980s German Tower Loudspeakers.

  9. #19
    Join Date: Nov 2008

    Location: North Down /Northern Ireland/ UK

    Posts: 19,484
    I'm Neil.

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    Thank You Chris and Brian for your answers. Hope that is of help to Granville.

    Thats the thing I like about AOS everybody helping everyone else.



    Regards D S D L---Neil
    Regards Neil

  10. #20
    Join Date: Jan 2009

    Location: Brisbane, Australia

    Posts: 77

    Default

    Most helpful guys.
    I’m one of those people who have music going almost 24/7 from CD or radio, be it at work or home environment. For me the internet download consumption would certainly add up, especially with better quality higher bit rate signals.
    Thanks again,
    Granville

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