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Thread: Beta Beresford DAC 7510+

  1. #111
    Join Date: Oct 2008

    Location: Southampton, UK and Nicosia, Cyprus

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    Quote Originally Posted by Filterlab View Post
    Good shout Brian, Pi to how many places?

    1000
    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.

  2. #112
    Join Date: Oct 2008

    Location: Southampton, UK and Nicosia, Cyprus

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    Quote Originally Posted by Filterlab View Post
    True on both points Nick,

    Brian?
    No, not from memory. From Google.
    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.

  3. #113
    Join Date: May 2008

    Location: Bristol, UK

    Posts: 9,966
    I'm Nick.

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    You blew it Brian! You could've lied and would forever more been remembered as the man who knew pi to 1000 places off the top of his head! Ah well
    [SIZE="1"]Nick

    Follow AOS on Twitter: @AoS_Forum

  4. #114
    Join Date: Oct 2008

    Location: Southampton, UK and Nicosia, Cyprus

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    Can't lie. I'm a clergyman. Haven't you Googled my screen name?

    (And no one would have believed me.)

    3.142 is as far a my memory takes me (O, those wretched log tables!)

    1.414 for sqrt 2

    2.71 for e

    But hey, that's not bad: I have done no Physics or Electronics Theory since 1970.
    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. #115
    Join Date: Oct 2008

    Location: Southampton, UK and Nicosia, Cyprus

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    Quote Originally Posted by Beechwoods View Post
    It's worth the extra post if it was typed from memory!

    PS. You promised us a random number. That was the least random number ever
    Just seen your PS - PI is an irrational.

    I think if you start at a random point in PI's decimal places, the digits will follow in random order - or at least as good as most other means of generating a random series.

    But I haven't done any Maths since 1970 either.

    Was that a "Yah Boo Sucks"?
    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.

  6. #116
    Join Date: Jan 2008

    Location: Norfolk, UK

    Posts: 6,258
    I'm BigBobJoylove.

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    Quote Originally Posted by Labarum View Post
    Was that a "Yah Boo Sucks"?
    Well, if I knew what one of those was.....



    I always remember Pi as 3.1417, can never remember further though, and that's not even correct anyway!

    Lounge:
    Samsung QE65QN80F 65" QLED TV
    Echo Link streamer
    RME Audio ADI-2 FS (AK4493) DAC
    XMOS DSD Async
    Emotiva A2+ power amplifier
    Neat Motive SX1 speakers
    Van Damme 4.00mm tour grade speaker cable
    Audiocrast Spreizbar banana plugs
    Chord Clearway XLR interconnects
    Audioquest Crimson USB interconnect
    QED Quartz Reference optical interconnect


    Studio:
    2022 MacBook Pro 14" M1 Pro 10/16/16/16
    SMSL SU-1 DAC
    Modified Fosi P4 preamp
    Adam Audio T5Vs
    Fenton 10" active sub
    Fosi V1.0G integrated amp
    Roxel RBS 300s
    Several small valve preamps

  7. #117
    Join Date: Feb 2008

    Location: Canaries

    Posts: 197

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    At grammar school in Derby (up to A-levels in 1969), we were always told that Pi was 22/7. When I mentioned this to a Maths teacher here in Spain she was most impressed, saying that was the only true answer for a value of Pi. Bloody decimals.

  8. #118
    Join Date: Oct 2008

    Location: Southampton, UK and Nicosia, Cyprus

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    Quote Originally Posted by Chris View Post
    At grammar school in Derby (up to A-levels in 1969), we were always told that Pi was 22/7. When I mentioned this to a Maths teacher here in Spain she was most impressed, saying that was the only true answer for a value of Pi. Bloody decimals.
    22/7 is an approximation. PI is an irrational. It cannot be expressed as the quotient of two integers.

    http://www.lrz-muenchen.de/~hr/numb/pi-irr.html
    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. #119
    Join Date: Jan 2008

    Location: Norfolk, UK

    Posts: 6,258
    I'm BigBobJoylove.

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    Quote Originally Posted by Labarum View Post
    22/7 is an approximation. PI is an irrational. It cannot be expressed as the quotient of two integers.

    http://www.lrz-muenchen.de/~hr/numb/pi-irr.html
    And it's also not correct (22/7), if 22/7 is expressed as a decimal it is in fact 3.1428. Pi is stated as being 3.14159 and not 3.1417 as I thought, even rounding up would make it 3.1416 so I'm well out. I do know however that Pi comes from the latin for perimeter which is written as: περίμετρος

    Man, this is what I call thread drift!

    Lounge:
    Samsung QE65QN80F 65" QLED TV
    Echo Link streamer
    RME Audio ADI-2 FS (AK4493) DAC
    XMOS DSD Async
    Emotiva A2+ power amplifier
    Neat Motive SX1 speakers
    Van Damme 4.00mm tour grade speaker cable
    Audiocrast Spreizbar banana plugs
    Chord Clearway XLR interconnects
    Audioquest Crimson USB interconnect
    QED Quartz Reference optical interconnect


    Studio:
    2022 MacBook Pro 14" M1 Pro 10/16/16/16
    SMSL SU-1 DAC
    Modified Fosi P4 preamp
    Adam Audio T5Vs
    Fenton 10" active sub
    Fosi V1.0G integrated amp
    Roxel RBS 300s
    Several small valve preamps

  10. #120
    Join Date: Oct 2008

    Location: Southampton, UK and Nicosia, Cyprus

    Posts: 1,139

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    Where are you getting your numbers?

    3.14159265358979323846 . . .

    3.142 to 4 significant figures

    http://en.wikipedia.org/wiki/Pi
    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.

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