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Thread: And before we did lasers...we did Light Boxes...

  1. #51
    Join Date
    Sep 2014
    Location
    Colorado USA
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    654

    Default Audio triggered LED Light Box is far better than expected!

    I'm blown away...the dynamics in the LED light intensity is terrific. This first audio triggered test used the audio from a TV news channel and even it is mesmerizing. For this test and only for convenience, the new LED Light Box sits immediately below my suspended flat screen TV screen and it's speakers.

    I can't wait to see what a music audio source does. I will post some video of it later tonight as an edit to this post.

    Here is a simple test, not at all optimal, a bit over exposed in places. But the SP106E is surprisingly effective. I'm looking forward to improving the effect with some custom programming.

    https://youtu.be/cPu_Jr8BTe8
    Last edited by lasermaster1977; 11-14-2022 at 18:36.
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  2. #52
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    Sep 2014
    Location
    Colorado USA
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    654

    Default A slightly better rendering and video...

    I've gained a lot of insight from playing with the SP106E controller (which does have it's own limitations) but my final efforts and design will focus around a combination of the Teensy 4.0 in combination with the Bela platform or visa-versa. I've been delving into learning their capabilities and programming.

    https://youtu.be/d5WbvatfV00
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    Everything depends on everything else

  3. #53
    Join Date
    Nov 2021
    Location
    Tucson, AZ
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    147

    Default

    Quote Originally Posted by lasermaster1977 View Post
    I've gained a lot of insight from playing with the SP106E controller (which does have it's own limitations) but my final efforts and design will focus around a combination of the Teensy 4.0 in combination with the Bela platform or visa-versa. I've been delving into learning their capabilities and programming.
    Very cool! Much better than the sound to light boxes, with pyramid glass, that were sold at swap meets during the 1970's. Concentric circles are mesmerizing and hypnotic Then, I found myself looking into a gun barrel. lol
    Couldn't figure out everything that's going on, apart from the obvious audio to light triggering.
    Don't know if you've discovered it yet, but the Teensy audio shield has line inputs, as well as line outputs.The Teensy audio library has lots of Digital Sound Processing modules, like hi/lo pass filtering. IOW, you could isolate and separate the desired audio bands, then feed those signals into ADSR envelopes for the desired response... all achieved in software.
    Simply pick and choose your desired DSP modules, from the left pane, in the PJRC online Audio Design Tool and follow the coding instructions on the right pane.
    BTW, Reaper also has filtering and envelopes. The soundtrack can be dragged onto the timeline and the Teensy controlled via usbMIDI.
    Fun toys. Thanks for sharing.
    What goes around, comes around. Most folks reflect one's light, yet silently absorb darkness, the invisible harm we inflict upon ourselves.

  4. #54
    Join Date
    Sep 2014
    Location
    Colorado USA
    Posts
    654

    Default @TheHermit, thanks

    Quote Originally Posted by TheHermit View Post
    Very cool! Much better than the sound to light boxes, with pyramid glass, that were sold at swap meets during the 1970's. Concentric circles are mesmerizing and hypnotic Then, I found myself looking into a gun barrel. lol
    Couldn't figure out everything that's going on, apart from the obvious audio to light triggering.
    Don't know if you've discovered it yet, but the Teensy audio shield has line inputs, as well as line outputs.The Teensy audio library has lots of Digital Sound Processing modules, like hi/lo pass filtering. IOW, you could isolate and separate the desired audio bands, then feed those signals into ADSR envelopes for the desired response... all achieved in software.
    Simply pick and choose your desired DSP modules, from the left pane, in the PJRC online Audio Design Tool and follow the coding instructions on the right pane.
    BTW, Reaper also has filtering and envelopes. The soundtrack can be dragged onto the timeline and the Teensy controlled via usbMIDI.
    Fun toys. Thanks for sharing.
    Yep, your comments are the direction I'm heading and then some. Automated imaging is cool but not as cool as automated imaging with some human real-time augmentations. That said, I should have video'd this demo at a higher frame-rate, this was done at 30fps and some flicker is evident.

    Don't know if you ever looked at the beginning of this thread at the 1st video(s), can't recall if there are one or two but they use random blinking, thermal bi-metalic switched C7 XMas tree light bulbs. I did these back in '74. Watching these random light patterns while listening to music, any music, back then was (pardon the pun) very enlightening and instructive in terms of the way the mind is drawn to auto-correlate the visual color sequence stimuli.
    ________________________________
    Everything depends on everything else

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