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  1. #101
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    Re: Open source timing software.

    Quote Originally Posted by contrate_wheel View Post
    For other OS X user, it is better to point out that there is a little confusion in the operations that Roli-poli attempted. To use the homebrew formula prepared by dmnc, as far as I can understand not being a mac user, the correct sequence of operations is

    step 1 - install homebrew as indicated in http://brew.sh

    step 2 - run brew doctor and do everything it asks of you

    step 3 - run the magic command: brew install dmnc/horology/tg --HEAD

    And this is it. No other step whatsoever is required. Please correct me if I am wrong...
    I have made a small addition here as it seems there is some confusion about xcode/dev tools. If homebrew hasn't already warned you, brew doctor will tell you if you are missing anything on your system and give instructions for how to sort it out, but it's usually as simple as xcode-select --install to get dev tools on the newer versions of OS X. You shouldn't have to worry about downloading all of xcode just to get make.

    The homebrew formula will deal with the gtk+, ffth etc. dependencies for you so you shouldn't have to worry about any of that.
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  2. #102
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    Re: Open source timing software.

    Thanks dmnc, I will edit my previous post with your correction.

  3. #103
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    Re: Open source timing software.

    How accurate measurements have you got with this software? I've been using it for about 3 months and it seems to be very good, but are those readings close to professional timegraphers measurements?

    What kind of microphones have you used, what's the cheapest one to use with this software? I have a DIY measurement microphone with pre amplifier but it's quite big and cumbersome...

  4. #104
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    Re: Open source timing software.

    Quote Originally Posted by beastomaniac View Post
    How accurate measurements have you got with this software? I've been using it for about 3 months and it seems to be very good, but are those readings close to professional timegraphers measurements?
    The calculations are probably as accurate as "professional" timers, at least for the rate and beat error values. There might be some disparity with the amplitude calculations at the moment. If so, it will probably be fixed. It's a new feature and still in beta after all.

    However, there's no calibration implemented yet. So the accuracy of the numbers you get will depend on how well your sound card performs.

  5. #105
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    Hi,
    I like the software very good signal detection, Im using it with a microphone from a L&R tickoprint t45, without amplification I just soldered a shielded cable to it and plugged it in my USB sound card. I think it's too good to be true, because when I use Delph escapement analyzer, it doesn't produce a good result, maybe I'll try an amplifier and I need to calibrate the sound card time or frequency, I don't know how, I tried to look it up but all the articles I found are complicated to follow, if someone knows a method, please share it with us, I think it would be very helpful.

    One thing I would like from the developer is to add the ability to record audio to check it on other timing as well, taking advantage of the filtering quality.

    I posted pictures of my setup.

    Thank you WUS.
    Attached Images Attached Images






  6. #106
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    Re: Open source timing software.

    Needed to say thanks for this awesome software! It worked well with my ordinary mic but ordered $5 clip on contact microphone from eBay and it's even better.

    Anyways, could somebody post graph from well working 1861 so I could compare? I am a bit worried if I should get my Speedmaster serviced. I bought it few months ago from watchmaker and he said there's no need for service as amplitude is >270 degrees. It was, at the beginning even though bet rate was out-of-spec (something like +15s/d). After few months beat rate is actually better (+10s/d or so), but amplitude looks funny... tg won't even show amplitude anymore, I think difference between tics and tocs are too big? Other value would be 240 degrees and other 300 degrees... Average would be exactly 270 degrees, but is this big difference between tics and tocs ok? I have zero idea...
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  7. #107
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    Re: Open source timing software.

    Here's a graph of my 2004 Speedmaster with similar movement (cal. 1863).

    Name:  uploadfromtaptalk1454251245602.jpg
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  8. #108
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    Re: Open source timing software.

    Quote Originally Posted by jappa View Post
    ... but is this big difference between tics and tocs ok? I have zero idea...
    Hi Jappa,
    did you try to connect the clip to the crown or at least the mic to the caseback if you got a plexi?
    Sometimes - depending on the watchcase - I'm experiencing as well some kind of echo which confuses TG as well as biburo or WOS.
    In case of a very quiet watch I connect directly to a save place e.g. crown wheel or a stable bridge.

    Just clip it to the right place and timegrapher will do its magic

  9. #109
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    Re: Open source timing software.

    In regards to the accuracy of the measurement: I just did a test and got an interesting result. I found 300 BPM (18000 BPH), 420 BPM (25200 BPH), and 480 BPM (28800 BPH) click tracks on youtube. They were all produced by the same user. Every one of them was showing exactly +33 s/day on TG. I can only assume that the software used to create these tracks was slightly off in their calculations introducing this error. In addition, using TG to measure the rate of my Speedmaster Pro in crown down position gives a result of +1.0 s/day. The observed time difference of the watch from 24 hours ago until now: 0.2 seconds fast. The reason it is +1.0 now is due to the slight increase in rate due to drop in amplitude from the watch being less wound.

    I would say it's safe to assume the accuracy of this app is going to be well within 1 s/day, probably even better than that. I would also say the instantaneous measure of rate by TG is going to be way more consistent (precise) than manually measuring the rate after a 24 hour rest in any position.

    I can't say this enough...but VERY well done!

  10. #110
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    Re: Open source timing software.

    Hmm I am unable to get good graph using tg... But I am starting to really think that service is now necessary. I listened recording made using piezo mic and theres some extra noise, kling kling kling on some positions... Check this out:

    https://www.dropbox.com/s/tavp9t1nz2...noise.mp3?dl=0

    I am rotating watch to different positions starting from 10 sec and sometims extra kling kling kling is heard. I know nothing about watch movements but I assume this is not normal. What do you say?

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