Webpage belonging to "Re: Gun chronograph / capturing inflight photo" posting:<br>
<a href="https://forums.raspberrypi.com/viewtopic.php?p=1956584#p1956584">https://forums.raspberrypi.com/viewtopic.php?p=1956584#p1956584</a><br>
Always 10KHz flash PWM frequency, with 2us duty cycle.<br>
4th argument is offset in microseconds, 1st arg is number of flashes.<br>
All frames have resolution 1296x730, captured at maximal framerate 57fps with Raspberry v1 camera.

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<br>
<pre>sudo ./audio_shots 20 2 10000 3000 (pellet broke at some point, multiple exposures of parts show trajectories):</pre>
<img src="3000_20/tst.frame.0056.png">

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<br>
<pre>sudo ./audio_shots 15 2 10000 3000 (320.0m/s):</pre>
<img src="3000_15/tst.frame.0056.png">

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<pre>sudo ./audio_shots 13 2 10000 3300 (366.3m/s):</pre>
<img src="3300_13/tst.frame.0056.png">

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<pre>sudo ./audio_shots 10 2 10000 3700 (324.1m/s):</pre>
<img src="3700_10/tst.frame.0057.png">

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<br>
<pre>sudo ./audio_shots 5 2 10000 4200 (361.7m/s):</pre>
<img src="4200_5/tst.frame.0056.png">

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<pre>sudo ./audio_shots 5 2 10000 4500 (338.6m/s):</pre>
<img src="4500_5/tst.frame.0057.png">