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    Is there a way to isolate 7 specifc Audio Frequency at the same time?

    How To... ?
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    • D
      duVa last edited by

      I'd like to work with 7 specifics sound frequencies (256Hz, 288Hz, 320, 341, 384, 426, 480Hz), alone and at the same time, each frequency sending a specific color (via enttec dmx usb pro/enttec send patch) to a LED lamp.

      With one frequency works fine, using Sound Frequency Watcher and sending the "energy" output to the 'value 2' from the 'Matrix Value Send Actor',
      but when I use 2 or more frequencies at the same time, one frequency interfere with the other(s). Even If I use '0Hz' for 'freq slope'.

      Is there a way to isolate these frequencies?

      The sound came from 7 Crystal Bowl and there is a frequency range + and - until the crystal find their final frequency (256Hz, 288Hz, 320, 341, 384, 426, 480Hz).

      Tks for any help, :).

      Best wishes,

      Luiz

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      • S
        Stephane_Morisse last edited by

        That looks like interactions between the frequencies. Do you play the bowls at the same time ? If that's the case, you create beatings between the basic frequencies and that should be enough to prevent the actor to detect them accurately.

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        • D
          duVa last edited by

          Yes I'm playing the bowls at the same time...
          I'm wondering if have a way to filter the frequency after the 'Sound Frequency Watcher' to solve that.

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          • S
            Stephane_Morisse last edited by

            You should do it pre-freq watcher. Do you use one mic per bowl / contact mics or one or a pair of mics for the whole ? In all cases but the contact mics, this implies filtering capacities that are beyond the scope of Izzy tools unless you have additional audio plug ins. If you are on a mac, you could use some AUbandpass filters to select just the frequencies of your seven bowls before entering the freq watcher.

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            • D
              duVa last edited by

              At the moment I'm using my comp mic to input audio.

              Yes per-filtering is the solution but Izz don't have this option. Is possible do use AUBandpass but there's no way to connect the AUBandpass out (audio) to the Sound Frequency actor...

              Tks for your attention Stephane, :)

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              • S
                Stephane_Morisse last edited by

                Don't have Soundflower installed on my new install to check that but I think that may be a solution : take Soundflower (or a sibling audiopipe system) as your audio input device in the live capture settings.
                Edit : you could also consider cheap piezo contact mics for each bowl as an affordable and reliable alternative.

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                • DusX
                  DusX Tech Staff last edited by

                  I would suggest using a dedicated audio application as your audio input,

                  Do your filtering there and re-route the audio (after filtering) to Isadora. (using soundflower or similar)
                  Reaper might be able to do this for you..
                  I personally use Renoise.
                  This will currently only work for Mac, since pc doesn't support multi channel audio in this way.

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                  • D
                    duVa last edited by

                    Yeap!! I used SoundTrackPro > Sound Flower > Izz and works, :)

                    Tks for y help Stephane and DusX.

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                    • S
                      Stephane_Morisse last edited by

                      Nice !

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                      • camilozk
                        camilozk last edited by

                        Ey @DuVa!
                        With how many microphones you sorted out the system?
                        Piezos would not do the job for this since it would mute the resonance of the bowls, wouldn´t it?

                        SoundFlower sounds great!

                        you say @DusX that there is no similar alternative for Windows?

                        i5 M520 @ 2.40GHz / 4Gb Ram / Win 7 - izzy 2.2.2
                        i7 7700HQ @ 2.8GHz / 16Gb Ram / Win 10 - izzy 2.6.1 / GeForce GTX 1060
                        AMD Ryzen 7 5800H / 16Gb Ram / Windows 11 / Radeon Graphics 3.20 GHz

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                        • DusX
                          DusX Tech Staff last edited by

                          No, on PC you will need to either, send midi or OSC data related to the audio levels of each frequency you are tracking (depends on your external audio software).

                          As for audio routing on PC I use, http://vb-audio.pagesperso-orange.fr/Voicemeeter/index.htm

                          Troikatronix Technical Support

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                          • Skulpture
                            Skulpture Izzy Guru last edited by

                            Just a note that Sound Flower doesn't seem to be working for me on Mac OS X 10.10

                            Anyone know of any alternatives?
                            Thanks. 

                            Graham Thorne | www.grahamthorne.co.uk
                            RIG 1: Custom-built PC: Windows 11. Ryzen 7 7700X, RTX3080, 32G DDR5 RAM. 2 x m.2.
                            RIG 2: Laptop Dell G15: Windows 11, Intel i9 12th Gen. RTX3070ti, 16G RAM (DDR5), 2 x NVME M.2 SSD.
                            RIG 3: Apple Laptop: rMBP i7, 8gig RAM 256 SSD, HD, OS X 10.12.12

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                            • Marci
                              Marci last edited by

                              Unsigned kext... There's a beta o'er on GitHub: https://github.com/mattingalls/Soundflower/releases/tag/2.0b2

                              rMBP 11,3 (mOS 10.13) / rMBP 11,4 (mOS 10.14) / 3x Kinect + Leap / TH2Go
                              Warning: autistic - may come across rather blunt and lacking in humour!

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