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    play audio of 4 movies to 4 bluetooth devices

    How To... ?
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    • Mr_J
      Mr_J last edited by

      Hi, is it possible to route the audio outputs of 4 movie players to 4 different audio outputs in Isadora, without any external hardware? 

      I'd like to route each of the 4 movie audio outputs to 4 different bluetooth audio devices, is Isadora able to recognise multiple audio devices and play to each one separately?  Or maybe i need to use Loopback as well?

      Am guessing this requires 4 audio output channels configured somewhere? Perhaps only possible once movie player audio routing capabilities are released?

      Cheers, Mr J

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      Izzy 3.2.6 | MBP (16-inch, 2019) 2.3 GHz 8-Core i9 64GB AMD Radeon Pro 5600M 8 GB | macOS 10.15.7

      S jfg Woland 4 Replies Last reply Reply Quote 0
      • S
        SimonevanD @Mr_J last edited by

        @mr_j

        Interesting, i want to know the same thing. Did you find a solution?

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        • jfg
          jfg @Mr_J last edited by jfg

          @mr_j

          I haven't tried personally but it seems to be possible:

          https://www.youtube.com/watch?v=SBrQ3Xduhk8. (German)

          Edit: Sorry I haven't seen you want 4 different channels. 

          Best regards, 

          Jean-François

          • Izzy 3.2.6
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          - Mac Pro 5.1 middle 2012 (3,33 GHz 6-Core Intel Xeon, 32GB RAM, Radeon RX 580 8 GB ),
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          • jfg
            jfg @Mr_J last edited by

            @mr_j

            I could make a "Hausgerät" with 4 channels but in Isadora I get only two mixed channels

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            - MacBook Pro M1 Max 16" 64GB RAM, Mac OS 15.3.2 Sequoia
            - Mac Pro 5.1 middle 2012 (3,33 GHz 6-Core Intel Xeon, 32GB RAM, Radeon RX 580 8 GB ),
            Mac OS 10.14.6 (Mojave)
            - Mac mini Pro M4, Mac OS 15.3.2 Sequoia

            • A range of deployable older Macs
              Located in Bremen, Germany
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            • Woland
              Woland Tech Staff @Mr_J last edited by Woland

              @mr_j said:

              Hi, is it possible to route the audio outputs of 4 movie players to 4 different audio outputs in Isadora, without any external hardware? 

              Unless I'm mistaken (and I certainly could be) it seems to me that even if there was multi-channel audio routing in the Movie Player actor right now it wouldn't be possible to do what you want because what you're talking about is multi-device audio routing.

              If you could get the Bluetooth speakers connected all at the same time, but able to appear as separate audio devices, you could easily do it on macOS with sound files like this (just four separate AUAudioFilePlayer actors going to AUAudioDeviceOutput actors set to different devices):


              Not sure how you'd do that though, since everything I've been searching up online about connecting to multiple Bluetooth speakers says you'd need to group them into a Multi-Output Device in Audio MIDI Setup (which means they'd all be sent the same thing instead of being individually addressable):

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              • jfg
                jfg last edited by

                I could have four movie players, each with a different sound output. But they were not Bluetooth devices. If the Bluetooth devices all appear in the list of sound outputs, it should be possible to have 4 video player with each a sound output.

                • Izzy 3.2.6
                - MacBook Pro M1 Max 16" 64GB RAM, Mac OS 15.3.2 Sequoia
                - Mac Pro 5.1 middle 2012 (3,33 GHz 6-Core Intel Xeon, 32GB RAM, Radeon RX 580 8 GB ),
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                - Mac mini Pro M4, Mac OS 15.3.2 Sequoia

                • A range of deployable older Macs
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                Woland 1 Reply Last reply Reply Quote 1
                • Woland
                  Woland Tech Staff @jfg last edited by

                  @jfg

                  Ah, see, I was wrong. I had just checked the hidden inputs on the Movie Player for that exact reason, but overlooked "audio device" and thought the one I was remembering was "snd out". After reading the description for "snd out" I decided  I must have remembered incorrectly and that there wasn't a hidden input that could help 😅

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                  • jfg
                    jfg @Woland last edited by jfg

                    @woland

                    But why I get only 2 mixed channels in Isadora with a aggregate Device with 4 Channels (see pictures above)?

                    If I play the audio file with another software (e.g. iina) I get four different channels

                    • Izzy 3.2.6
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                    - Mac Pro 5.1 middle 2012 (3,33 GHz 6-Core Intel Xeon, 32GB RAM, Radeon RX 580 8 GB ),
                    Mac OS 10.14.6 (Mojave)
                    - Mac mini Pro M4, Mac OS 15.3.2 Sequoia

                    • A range of deployable older Macs
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                    • Woland
                      Woland Tech Staff @jfg last edited by

                      @jfg said:

                      But why I get only 2 mixed channels in Isadora with a aggregate Device with 4 Channels (see pictures above)?

                       I think because of this: 

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                      • Mr_J
                        Mr_J last edited by Mr_J

                        here's how i managed to do it playing audio files using AUmixer3D and AUAudioDeviceOutput actors...

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                        • Mr_J
                          Mr_J last edited by Mr_J

                          and also using the AUMatrixMixer...

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