Posts by Proton25@mastodon.social
 (DIR) Post #AtQFGeuFmX0C5H4VPc by Proton25@mastodon.social
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       @davidrevoy You may want to apply a lowpass filter on the recorded audio. The heartbeat is only several hundred Hz and you don't need the noise at higher frequencies. Try a 1 KHz lowpass filter and see what the recording looks like. It may make counting easier. You can play with the value until you get a good result.If you are feeling a little motivated, you can use Blender to help you with the counting using a Python script...
       
 (DIR) Post #AtQWgrPlb5nfcytKZk by Proton25@mastodon.social
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       @davidrevoy This is after applying a bandpass filter and a noise gate. Much easier to count...
       
 (DIR) Post #AtQYfwHoCOdoM6rE7U by Proton25@mastodon.social
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       @davidrevoy Of course!Start out with applying a Filter Curve EQ. effect. Take out the lower frequencies below 40Hz and the high frequencies above 600Hz. This will already improve things. The final step is to apply a gate in order to remove the low volume noise. I used a Calf Gate (part of the calf plugin suit that you can find in the extra repo in Arch based distro) that I installed for my DAW and is available in Audacity. You can play around with the threshold - I used values around 0.3-0.4.
       
 (DIR) Post #AtQelWEMaLhJ0ZI1s8 by Proton25@mastodon.social
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       @davidrevoy It is the least I could do for someone who has provided me (and others) with so much information and value for several years.
       
 (DIR) Post #AwamJkFGHVerFI9iTI by Proton25@mastodon.social
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       @davidrevoy I will not draw, since my skills are so terrible, it might make you go blind.Anyway, where I live, there is a phenomenon of jugglers performing during a red light in intersections and then they go between the cars with a tipping hat, hoping to be rewarded for their efforts. You can see where I am going with this, right?The mermaid either swims with a tipping hat between the boats, or floats a tipping hat toward them...