Bias amp 2 with audacity4/17/2024 The duration control in pemf-v1 is somewhat confusing with those minutes values, especially since screen reader users don’t “see” the unit text (seconds). Like Steve, I can only speak from a physics/programmers point of view. Also the Amplifier has troubles with longer magnet duty cycles. When the duty cycle gets near 3ms long, the magnet looses the DC pulse and creates an AC waveform. I’ve also found that duty cycle needs to scale in relation to magnet frequency or be fixed to around 1ms. I may still tinker with the pwl envelope. The Audacity PEMF waves are working for it’s indented use. Here is a PEMF machine recorded with a mic.Īudacity PEMF generator (top track) ~0.33ms duty cycle creates DC wave magnet duty (bottom track) - recorded with mic.Īudacity PEMF generator (top track) with about ~1ms magnet dutyĪudacity PEMF ~2ms magnet duty starts to create an AC wave form (bottom track) Here are some snips on research showing Electromagnetic Pulses can have both positive and negative effects on cells. I also like to use xoscope at 10-20ms to visually see the pulses live - if the AMP or the audio-out is over-driven I can see a clean DC clean pulse “fall apart” into a distorted AC signal. With the Audacity PEMF List Nyquist plugin I could play back a pulse and at the same time use a microphone record how the magnet responded to the amplified audio pulse on a 2nd track. However, in the end Audacity + Amplifier based machine still does the trick. PEMF machine - microphone could pick up the pulse 4ft above the coil VS Audacity + Amp is only 2.5ft. The down-side to using Audacity + Amplifier is that the magnetic field is much smaller than a hardware-based generator. The hardware-based solution was fixed in it’s frequency choices. Audacity + amplifier is much more flexible at creating pulses than a hardware-based solution. After doing some google-scholar research on PEMF it seems that cells and molecules respond differently to different magnetic frequencies. The device was driving the magnet at a constant frequency and changing the pulse rate. The machines are too expensive for us to buy.Ī microphone has a small coil in it so it could pick up and record the magnetic pulses (in Audacity of course). My wife had chronic back pain and a very expensive PEMF machine took the pain away. Feel free to experiment with better ways to drive the magnetic coil.
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