Important milestone for my timecode gizmo: this is the first successful syncing using a cell phone and the Teensy board implementing an USB audio device, plugged as an external mic into the USB-C port. This is important as I'm pivoting my project toward youtubers rather than indy cinematographers who are already using overpriced and counter intuitive SMPTE LTC generators in their workflow 
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#atomicsynchronator
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@kdenlive searching Issues https://invent.kde.org/multimedia/kdenlive/-/issues/?sort=created_date&state=opened&search=timecode&first_page_size=20 I can't see the feature request I filled there: https://bugs.kde.org/show_bug.cgi?id=480649
"insert clip into timeline using metada timecode" is so a no-brainer for me...
with all those YTbers with Tentacle Sync boxes...
Can someone invite me on fosstodon? It's for a less personal account, around my AV projects (instead of creating custom hashtags):
A- TicTacSync, (formerly known as #atomicsynchronator ) a novel GNSS based timecode generator;
B- SpinClap, a device for in-situ lag measurement between camera audio and video streams (of ms order) see http://scnat.net/scnat/published/In+Cam+Audio+Lag
C- Flosscorder, an audio recorder based on the #BeagleBoard and its PRU https://www.diyaudio.com/community/threads/diy-portable-audio-recorder.194130/#post-2662561
One of my most proud of plot. Geeky, chuck-full of data, and _nice_ .
https://forums.adafruit.com/viewtopic.php?p=903215#p903215
The two small vertical lines at the base correspond to the clock jitter width I measured with a Feather M0 which uses XOSC32K since there's a crystal on the board (the jitter is then as small as ± 0.02 ms).
#matplotlib #SAMD21 #microcontrollers #electronic #atomicsynchronator
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And I want to break up the gate keeping that emerged among users due to the high cost proprietary hardware and software industry ecosystem: “We’re using those expensive tools because we are pros… if you can’t afford the tools of the trade, too bad…”
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@adafruit Oh no!
And what about the SAMD21? My project is using its 10 bits DAC output... where are published chips EOL planned dates? #atomicsynchronator
oh god! je voulais exporter mes synchro multicam avec OpenTimeLineIO mais je découvre que Davinci Resolve ne lit pas les projets otio (et il y a un conflit d'installation entre python et kdenlive que je n'ai pas envie de résoudre)... je cherche donc maintenant du côté de XML ou AAF... mais c'est le bordel côté docu des API: lors de recherches google je ne trouve que des forums où est posé la question "c'est quoi du XML? c'est quoi du AAF"
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We see the error is less than half a frame, which is nominal (but could be problematic if other lag is added in the workflow, wireless mic) If you know some site or forum where this is discussed, let me know! All I found about this crucial subject ( ) is https://www.dvinfo.net/forum/final-cut-suite/515203-1-2-frame-difference-audio.html#post1785665
I did the same measurements for a D300S and I even saw a *rolling* error from -30 to +10 ms ! I guess they are writing sound data to a ring buffer and read it at a different frequency. #atomicsynchronator
www.dvinfo.net 1/2 frame difference audio at DVinfo.nethello everyone, I used my 5D and put on a rode videomic, I have been using a transmitter as a second source. I used a clap as reference. In fcp7 i
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Each time the rotating arm passes over the electrical contact, my python script processes the few frames around this moment and interpolates the exact time (to the nearest millisecond) the video stream "touches" the wire. It then compares this time value with the one detected on the audio stream and compute the difference between them: this is the synchronization error. Plotted here for some 28 passes. #atomicsynchronator
Well, my results are reproducible, time to publish them!
Here's the raw material. #atomicsynchronator
I should automate this... for now I'm grabbing coords manually with https://automeris.io/WebPlotDigitizer
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@aaron not a job offer (sorry) but if you're into #FOSS, #soundrecording and #videoproduction, this *may* interest you (I'm looking for advices, beta testers, GUI devs, etc...): #atomicsynchronator for my masto posts and https://tictacsync.org for the project home. TL;DR: it's a timecode gizmo for the DYI masses. NOT smpte ltc...
tictacsync.orgTicTacSync audio-video