Ghani Lawal- Replaced Sub-Bass op-amps with one from the old PCB, still getting the same problem
- According to online, this is possibly due to the third stage circuit being unstable to to a small phase margin, causing sustained oscillations
- Will get metrics on accuracy of each filter tomorrow, taking how much attenuation exists at the midpoint, cut-off frequencies and 10 times/divide the cutoff frequencies
- Will make notes on how improvements can be made (steeper cut-offs, individually controllable gains etc.)
Wrapping up
A project log for Music Spectrum and dB Visualizer
Receive input from a 3.5mm jack, divides the music into 7 frequency bands, shows the loudness of each frequency band in DB using LEDS.
Discussions
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