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    Video interference with sound?

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    • goodboyG
      goodboy
      last edited by

      Hi guys

      This is a weird one and has nothing to do with Isadora, but I'm hoping someone may have come across this in the past.
      So when I project my image/video it's fine
      When I introduce sound it's fine, but when I turn up the volume on my desk the projection shimmers/shakes (its the only way I can explain it)
      I though at first it might be the Mac that I'm running izzy (and sound) thru, but I get the same result when playing audio from different sources (my two other computers)
      It also seems to happen more with low bass frequencies 
      The only thing connecting them all is the sound desk. The sound desk is new and I've used the same set up a few months back with no problems
      I also checked if video and sound cables were touching or near to each other.
      Our show opened tonight and runs till Sat, any ideas or check lists would be very welcome.
      Thanks
      Joe

      Macbook Pro 2020 / 13' M1 chip / 16GB Memory / Big Sur

      MacBook Pro (2017) - Intel Core i7 - 16 GB 2133 MHz LPDDR3 - Radeon Pro 560 4 GB
      Intel HD Graphics 630 1536 MB

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      • DusXD
        DusX Tech Staff
        last edited by

        Any chance it's the bass vibrating the projector.

        Troikatronix Technical Support

        • New Support Ticket Link: https://support.troikatronix.com/support/tickets/new
        • Isadora Add-ons: https://troikatronix.com/add-ons/
        • My Add-ons: https://troikatronix.com/add-ons/?u=dusx

        Running: Win 11 64bit, i7, M.2 PCIe SSD's, 32gb DDR4, nVidia GTX 4070 | located in Ontario Canada.

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        • goodboyG
          goodboy
          last edited by

          Hi DusX

          No is the short answer I guess, the image is stationary (the edging of the image stays still). 
          You can tell it's internal and within the cables which is the first thing I will change when I go in tonight, starting with my video cable.
          Thanks for your reply 🙂
          Joe

          Macbook Pro 2020 / 13' M1 chip / 16GB Memory / Big Sur

          MacBook Pro (2017) - Intel Core i7 - 16 GB 2133 MHz LPDDR3 - Radeon Pro 560 4 GB
          Intel HD Graphics 630 1536 MB

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          • MaximortalM
            Maximortal
            last edited by

            It seems some ground problem. Try to pur a couple of d.i.boxes in audio chain, between PC and mixer or between mixer and loudspeakers .

            Iro Suraci | Win 10 - Ryzen 3600 - 32GB - nVidia gtx 960 4gb / Win 10 - i5 4210U - 8 GB - R5 M230 | Isadora 3.0.7| Located in Brescia, Italy

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            • goodboyG
              goodboy
              last edited by

              Thanks Maximortal

              That sounds like good advice and worth trying.
              Cheers
              Joe

              Macbook Pro 2020 / 13' M1 chip / 16GB Memory / Big Sur

              MacBook Pro (2017) - Intel Core i7 - 16 GB 2133 MHz LPDDR3 - Radeon Pro 560 4 GB
              Intel HD Graphics 630 1536 MB

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              • dbiniD
                dbini
                last edited by

                are you in a theatre with an induction loop for the hard of hearing? i once discovered a Sennheiser system was interfering with the projector, but only with certain sounds.

                John Collingswood
                taikabox.com
                2013 MBPR 2.3GHZ i7 OSX11.7.4 16GB
                & 2019 MBPT 2.6GHZ i7 OSX12.3 16GB

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                • goodboyG
                  goodboy
                  last edited by

                  Hi dbini

                  No, we don't have an ILoop,.... 
                  and no radio mics in use.
                  Thanks
                  Joe

                  Macbook Pro 2020 / 13' M1 chip / 16GB Memory / Big Sur

                  MacBook Pro (2017) - Intel Core i7 - 16 GB 2133 MHz LPDDR3 - Radeon Pro 560 4 GB
                  Intel HD Graphics 630 1536 MB

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                  • markM
                    mark
                    last edited by

                    @goodboy,

                    Yeah, outside of something really bizarre, ground loop would be the first thing to check.
                    Best Wishes,
                    Mark

                    Media Artist & Creator of Isadora
                    Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

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                    • goodboyG
                      goodboy
                      last edited by

                      Thanks for all the help,

                      I will try the di box fix tonight.

                      Macbook Pro 2020 / 13' M1 chip / 16GB Memory / Big Sur

                      MacBook Pro (2017) - Intel Core i7 - 16 GB 2133 MHz LPDDR3 - Radeon Pro 560 4 GB
                      Intel HD Graphics 630 1536 MB

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                      • goodboyG
                        goodboy
                        last edited by

                        Thanks Maximortal

                        That worked! (di's between sound mixer and speakers)
                        Thank you all
                        Joe

                        Macbook Pro 2020 / 13' M1 chip / 16GB Memory / Big Sur

                        MacBook Pro (2017) - Intel Core i7 - 16 GB 2133 MHz LPDDR3 - Radeon Pro 560 4 GB
                        Intel HD Graphics 630 1536 MB

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                        • DusXD
                          DusX Tech Staff
                          last edited by

                          @goodboy

                          Glad you got it figured. I had to ask about the bass 😉

                          Troikatronix Technical Support

                          • New Support Ticket Link: https://support.troikatronix.com/support/tickets/new
                          • Isadora Add-ons: https://troikatronix.com/add-ons/
                          • My Add-ons: https://troikatronix.com/add-ons/?u=dusx

                          Running: Win 11 64bit, i7, M.2 PCIe SSD's, 32gb DDR4, nVidia GTX 4070 | located in Ontario Canada.

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                          • goodboyG
                            goodboy
                            last edited by

                            Thanks DusX 😉

                            Macbook Pro 2020 / 13' M1 chip / 16GB Memory / Big Sur

                            MacBook Pro (2017) - Intel Core i7 - 16 GB 2133 MHz LPDDR3 - Radeon Pro 560 4 GB
                            Intel HD Graphics 630 1536 MB

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                            • MaximortalM
                              Maximortal
                              last edited by

                              D.I. Boxes are best friend of every technitian!  🙂

                              Iro Suraci | Win 10 - Ryzen 3600 - 32GB - nVidia gtx 960 4gb / Win 10 - i5 4210U - 8 GB - R5 M230 | Isadora 3.0.7| Located in Brescia, Italy

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