Just a thought: assuming that all multi-channel "audio nodes" (loudspeaker + amplifier + IP audio) are powered from a common AC circuit, you could try powerline networking.

Marc

Le 01/06/2019 à 17:25, Augustine Leudar a écrit :
by line of sght - I mean we do installations that have walls , dence trees
and foliage , all sorts of stuff in the way - so IR , though it looks like
a neat idea and I think preferable to wifi in some ways - wouldnt work for
us  Even wifi fails in some situations where walls are thick.

On Sat, 1 Jun 2019 at 22:19, Stefan Schreiber <st...@mail.telepac.pt> wrote:

Citando Augustine Leudar <augustineleu...@gmail.com>:

sounds great  -  but can it reflect through castle walls ?
- -

I wouldn’t count on such effects...

St.

On Sat, 1 Jun 2019 at 19:50, Stefan Schreiber <st...@mail.telepac.pt>
wrote:
https://en.m.wikipedia.org/wiki/Li-Fi



  “Direct line of sight is not necessary for Li-Fi to transmit a signal;

  light reflected off the walls can achieve 70 Mbit/s[1].”



  It all works in a very similar fashion as this “soundbar marketing

  B.S.“...  < g >



  Best,



  Stefan



  P.S.: Hu? Eh?! 😉



  Citando Bo-Erik Sandholm <bosses...@gmail.com>:







https://www.researchgate.net/profile/Hyunchae_Chun/publication/259889506_A_3-Gbs_single-LED_OFDM-based_wireless_VLC_link_using_a_gallium_nitride_m_LED/links/577cd2f708ae355e74f2b06d/A-3-Gb-s-single-LED-OFDM-based-wireless-VLC-link-using-a-gallium-nitride-m-LED.pdf






    3 Gb/s on common led...



    I Don't get the hu?







    Li-Fi is a coming standard for high bandwidth local light based
network.






    Bo-Erik











    Den lör 1 juni 2019 19:11David Pickett <d...@fugato.com> skrev:



  Eh?







    D :)







    At 19:01 01-06-19, you wrote:



    Content-Transfer-Encoding: base64Optical digital



    bandwidth using LED as a transmitter is without problem 1+



    Mbit/s.







    Different designs have differet limits.







    B







    Den lör 1 juni 2019 13:49David Pickett <d...@fugato.com> skrev:







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  Artistic Director Magik Door LTD

  Company Number : NI635217

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