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    Frequency Watcher. Is it precise ?

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

      Dear @maxiwille,

      The Frequency Watcher uses a 256 stage FFT to divide the input sound range into 256 slices. For a sample rate of 44.1 kHz, that's about 86 Hz per band.
      But whether or not you can trigger on a specific note is a different story. An instrument like the violin has numerous overtones for a given pitch. (E.g., for the pitch A = 440Hz, you'll get 440Hz, 880Hz, 1320Hz and other higher frequencies.) How strong these overtones are depends on the instrument in question; the relative power of these frequencies is what makes each instrument sound different. Furthermore, some instruments – like the trumpet – actually produce quite a bit of noise (every frequency) during the first many milliseconds they are produced.
      So, the short answer is this: unless the source is a sine wave (which has no overtones) the Frequency Watcher may not be reliable for picking out a particular note.
      Best Wishes,
      Mark

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

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      • J
        jandraka last edited by

        Hi,

         You could try this application: [https://imitone.com](https://imitone.com).I have tried it with the notes of a ukulele and works well.
        Best 
        Javi

        MBP 2017, Quad-Core Intel Core i7 3,1GHz, 16GB, Radeon Pro 560 4GB. OSX 11.6.2 Isadora 3.2.5

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        • Maximortal
          Maximortal last edited by

          yes, imitone is the solution if you need a single note trigger

          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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          • maxiwille
            maxiwille last edited by

            Thank you Mark and all !! So imitone can comunicate with isadora vía OSC ? Or what else.? I would like to solve this within Isadora if is possible because it Will be a non stop instalation so a prefer no to involve other softwares. What im traying to do is that the sound ambient (outside instalation) and peoples sound( gallery) triggers pictures. The focus is the presicion, meaning that must be clear for the audiencia what sound trigger what. So what could be the best aproach for you guys ? Best, Maxi

            Maximiliano Wille. MacBook Pro (Retina, 13-inch, Early 2015). 2.7 GHz Intel Core i5. 16gb.Intel Iris Graphics 6100 1536 MB. http://www.redisadoralatina.com
            Buenos Aires, Argentina.

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            • vanakaru
              vanakaru last edited by

              http://troikatronix.com/troikatronixforum/discussion/comment/15990/#Comment_15990

              Here you have a bit more talk about it.
              The other new tool may be of use as well
              http://troikatronix.com/troikatronixforum/discussion/2512/machine-learning-for-musicians-and-artists-course/p1
              As much I have learned it may be possible to train Wekinator to more precise sound patterns.

              MBP 4.1 & MBP (Retina, Mid 2012) MBP Retina 2017

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              • crystalhorizon
                crystalhorizon Beta Platinum last edited by

                Is there something like imitone that can do that with more than one voice?

                Also, is there an app that can follow a musician to a writen score? So interactively knows where the musician is in the score. That would be great for sending triggers to Izzy

                Alexander Nantschev | http://www.crystalhorizon.at | located in Vienna Austria

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                • jhoepffner
                  jhoepffner last edited by

                  @crystalhorizon

                  Cycling 74 Max is the software able to do that, that was his job at the beginning.
                  The best would be to have a direct midi connection from instrument to computer if not you can do sound to midi trigger but it's really less precise.
                  IRCAM make a paying addition to Max and Pure-Data
                  http://forumnet.ircam.fr/product/antescofo-en/
                  http://www.antescofo.com
                  But it's quite difficult to manage, there is some teaching in IRCAM.
                  Jacques

                  Jacques Hoepffner http://hoepffner.info
                  GigaByte 550b / Ryzen 7 3800X / Ram 64 Go / RTX 3090 24 Go / SSD 2 To / raid0 32 To
                  MBP 13' i5 2.6 Ghz 16 Go / Intel Iris / macOs 10.11.6 / izzy 2.6.1 + 3.0.3b2
                  MBP 15' i7 2.6 Ghz 16 Go / GTX 650M 1Go/ MacOs10.13.3 / Izzy 2.6.1
                  MSI GS65 i7 3.6 Ghz 32 Go / GTX 1070 8 Go / Windows 10 / Izzy 3.0.3b2

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                  • crystalhorizon
                    crystalhorizon Beta Platinum last edited by

                    @jhoepffner

                    Dear Jacques,
                    That looks really interesting! Thanx for sharing, I will have a deeper look into this.
                    All the best,
                    Alex

                    Alexander Nantschev | http://www.crystalhorizon.at | located in Vienna Austria

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                    • bonemap
                      bonemap last edited by

                      @Mark Your explanation of the Sound Frequency Analysis would be a useful addition to the Isadora manual. "The Frequency Watcher uses a 256 stage FFT to divide the input sound range into 256 slices. For a sample rate of 44.1 kHz, that's about 86 Hz per band." If it is there already I could not find it. Thanks for sharing that. Cheers Bonemap

                      http://bonemap.com | Australia
                      Izzy 3 STD/USB 3.2.5 | MBP 16” 2019 2.4 GHz Intel i9 64GB AMD Radeon Pro 5500 8 GB 4TB SSD | Mac Studio 2022 M1 Max 32GB | OSX 12.5.1 Monterey

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                      • crystalhorizon
                        crystalhorizon Beta Platinum last edited by

                        @jhoepffner I looked a little more into antescofo, it looks very interesting. And the community is responding quickly )) http://forumnet.ircam.fr/user-groups/antescofo/forum/topic/following-richard-strauss-sonata-for-violin-and-piano/#post-19051

                        For sure I will get deeper into it, because it gives me hope to get what I am searching for

                        Alexander Nantschev | http://www.crystalhorizon.at | located in Vienna Austria

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                        • G
                          gavspav Beta Silver last edited by

                          I was pretty amazed how consistently the sigmund~ external for pure data worked with singing/piano/individual notes. Its truly amazing!

                          [http://www.maxobjects.com/?v=objects&id_objet=4713](http://www.maxobjects.com/?v=objects&id_objet=4713http://)
                          Apparently it works with max too - never tried it.
                          Isn't there a vst wrapper for pure data - maybe it works inside Isadora!
                          I never tried [this](https://puredata.info/downloads/aubio) but maybe its also interesting.

                          http://www.digitalfunfair.co.uk I'm using M1 MBP 14" mostly but sometimes use older Mac & Windows machines.

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