• Products
    • Isadora
    • Get It
    • ADD-ONS
    • IzzyCast
    • Get It
  • Forum
  • Help
  • Werkstatt
  • Newsletter
  • Impressum
  • Dsgvo
  • Press
  • Isadora
  • Get It
  • ADD-ONS
  • IzzyCast
  • Get It
  • Press
  • Dsgvo
  • Impressum

Navigation

    • Register
    • Login
    • Search
    • Categories
    • Recent
    • Popular
    • Tags

    Audio beat detection algorithm

    Troubleshooting and Bug Reports
    7
    27
    12894
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • Bill Cottman
      Bill Cottman last edited by

      Anyone have an Izzy patch that accomplishes this? Thanks.

      http://www.BillCottman.com : Isadora3.0.8f09 with MBP OS X 10.11.6 in Minneapolis, MN

      1 Reply Last reply Reply Quote 0
      • Skulpture
        Skulpture Izzy Guru last edited by

        I'd; say this is a good place to start, depends on your microphone too; what low frequency (kick) it can pick up, etc.

        I have presumed this is for live capture of BPM using audio?

        093bd0-screen-shot-2013-05-13-at-14.18.40.png

        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

        1 Reply Last reply Reply Quote 0
        • Bill Cottman
          Bill Cottman last edited by

          thanks for this. did not know about the tap to tempo actor! is there an alphabetical index of Izzy actors somewhere?? i've been playing with your idea using my laptop line-in and music from my iPod. do you know the relationship between the sound freq watcher sound power levels and the trigger level? i did a 6db boost on line-in level to get a robust sound power level. even after playing with many trigger levels, not many X's?? i even moved up the frequency range. thx.

          http://www.BillCottman.com : Isadora3.0.8f09 with MBP OS X 10.11.6 in Minneapolis, MN

          1 Reply Last reply Reply Quote 0
          • vanakaru
            vanakaru last edited by

            I played with this as well. It will give you rather rough tempo/beat detection. Since it gets the re-occurence from frequency it tends to flux alot. I attached the beat to movie player position and it kind of does the beat match. Also the flux adds nice variation to the setup(so the movie does not play the same lenght always). So I like this alot. And it is very good start point. Maybe if you will get the triggers from different frequencies and calculate the average you should get closer to actual beat.

            Maybe to use external hardware that outputs MIDI timing is better.

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

            1 Reply Last reply Reply Quote 0
            • I
              ian Beta Platinum last edited by

              If you're needing a little better control of the sound levels from the ipod... Have you ever tried working with soundflower? http://cycling74.com/soundflower-landing-page/

              It's 'syphon' for sound. You can send  sound from the sound player output of izzy (or anything else on your machine) to soundflower, then recapture in izzy as new input. So for example you can have an audio file player playing your files, adjust the gain and/or hi/lo pass filters to select a narrow frequency, then loop back into izzy to measure with the sound level watcher or sound frequency watcher.

              For anything with a beat being kept at middle c or below I've had had much better much filtering the frequency range down to a few single note ranges before running it into either the frequency watcher or just using a sound level watcher.
              1703b1-screen-shot-2013-05-14-at-12.48.59-am.png

              Ian Winters
              2022 M1Max 64gb osx 13.x, 2020 ImacPro 12 core 32gb 13.x, 2018, Retina MBP 2.9ghz i7 / 16gb / Radeon Pro 560x 4gb / 13.x /
              video and media design / ianwinters.com

              1 Reply Last reply Reply Quote 0
              • Skulpture
                Skulpture Izzy Guru last edited by

                Yeah its never perfect and depends on the music style/type to be honest.

                When I VJ it's normally for trance/electro/house music so its very 4/4 and 126-135 BPM so I have been lucky.
                I know these are used a lot by VJ's too..
                [http://www.redsound.com/products/](http://www.redsound.com/products/)

                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

                1 Reply Last reply Reply Quote 0
                • Bill Cottman
                  Bill Cottman last edited by

                  vanakaru: yeah i tinkered in this direction also and liked the results! i think this will satisfy my needs for now.

                  ian: thx. i've forgotten about soundflower. thx for the reminder. will consider this if i need more control.
                  skulpture: thx for the links. i have the RTA Lite app on my iPhone so i can see the freq spectrum i'm listening to

                  http://www.BillCottman.com : Isadora3.0.8f09 with MBP OS X 10.11.6 in Minneapolis, MN

                  1 Reply Last reply Reply Quote 0
                  • Skulpture
                    Skulpture Izzy Guru last edited by

                    I have just found this too:

                    [http://showsync.info/index.php/tools/beattracker/](http://showsync.info/index.php/tools/beattracker/)
                    _"Beattracker is a standalone beat tracker module that analyzes an incoming audio signal and accurately detects the tempo and the current beat position after feeding it an initial tempo by tapping. It outputs the tempo and beat information in various formats, such as MIDI clock, OSC and MA net."_
                    _ _
                    _@_[vanderzee](http://troikatronix.com/troikatronixforum/profile/252/vanderzee)

                    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

                    1 Reply Last reply Reply Quote 0
                    • Bill Cottman
                      Bill Cottman last edited by

                      thx Skulpture. I'm playing with Arduino today

                      http://www.BillCottman.com : Isadora3.0.8f09 with MBP OS X 10.11.6 in Minneapolis, MN

                      1 Reply Last reply Reply Quote 0
                      • Skulpture
                        Skulpture Izzy Guru last edited by

                        And this....

                        [http://wavesum.net/products.html](http://wavesum.net/products.html)

                        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

                        1 Reply Last reply Reply Quote 0
                        • Bill Cottman
                          Bill Cottman last edited by

                          thanks

                          http://www.BillCottman.com : Isadora3.0.8f09 with MBP OS X 10.11.6 in Minneapolis, MN

                          1 Reply Last reply Reply Quote 0
                          • Skulpture
                            Skulpture Izzy Guru last edited by

                            I keep finding stuff! lol

                            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

                            1 Reply Last reply Reply Quote 0
                            • crystalhorizon
                              crystalhorizon Beta Platinum last edited by

                              I´m trying a different approach: In Cubase I made a midi track with a short bass drum, tapped to my main Wave Track. I exported a midi and an audio file of this bass drum sync track: The idea was to start both tracks (audible track and inaudible sync track) with a keyboard watcher or enter scene trigger-the sync track should change after e.g. 8 beats -counter actor, some effect of the video. So now I have no idea what actor midi, audio, audio core, etc actor to use for the sync track, that triggers the counter and shoul be not audible. Its not about live capturing the audio. Any ideas?

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

                              1 Reply Last reply Reply Quote 0
                              • crystalhorizon
                                crystalhorizon Beta Platinum last edited by

                                no one?

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

                                1 Reply Last reply Reply Quote 0
                                • Skulpture
                                  Skulpture Izzy Guru last edited by

                                  The MIDI player in Isadora; actually plays a MIDI file; it doesn't send the note out. 

                                  This is where Ableton is perfect for Live stuff as that will and the MIDI out and play music at the same time.
                                  I will have a think about the best solution today for you.

                                  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

                                  1 Reply Last reply Reply Quote 0
                                  • crystalhorizon
                                    crystalhorizon Beta Platinum last edited by

                                    Yeah, saw your ableton tutorial. Thanx for helping.

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

                                    1 Reply Last reply Reply Quote 0
                                    • Skulpture
                                      Skulpture Izzy Guru last edited by

                                      Really what you need is something like Duration or Vezer

                                      But these mostly deal with OSC (similar to MIDI in many ways really - in its simplest form they both send messages just via deferent methods/protocols)
                                      Worth having a look anyway.

                                      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

                                      1 Reply Last reply Reply Quote 0
                                      • Michel
                                        Michel Izzy Guru last edited by

                                        Duration is really worth a look.

                                        Best
                                        Michel

                                        Michel Weber | www.filmprojekt.ch | rMBP (2019) i9, 16gig, AMD 5500M 8 GB, OS X 10.15 | located in Winterthur Switzerland.

                                        1 Reply Last reply Reply Quote 0
                                        • Skulpture
                                          Skulpture Izzy Guru last edited by

                                          It is indeed. I don't think you can drag a MIDI file into Duration though.

                                          But, saying that, I would swap the MIDI for OSC if I am totally honest. 
                                          It may be a bit more work but the workflow is much better and reliable.

                                          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

                                          1 Reply Last reply Reply Quote 0
                                          • Skulpture
                                            Skulpture Izzy Guru last edited by

                                            http://vezerapp.hu/blog/vezer-talks-osc/

                                            MIDI and OSC.
                                            **Note:** This isn't out yet - due out very soon!

                                            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

                                            1 Reply Last reply Reply Quote 0
                                            • First post
                                              Last post