[sdiy] Low Pass filters and musically useful frequency range

[Ingo Debus]

Am 12.05.2014 um 04:08 schrieb Andrew Simper:

> Consider a double bass, it has the lowest
> string tuned to E1 (41 Hz), but the lowest resonant peak of the body
> is around 120 Hz, and the high pass nature of the rest of the formant
> needs a high pass cutoff of around 60-80 hz:
> https://courses.physics.illinois.edu/phys406/Student_Projects/Spring12/Michael_Zevin_P406_Project_Report_Sp12.pdf

Very interesting read. Unfortunately it's not very clear how the measurements were made. Probably it was done as described here:
<https://courses.physics.illinois.edu/phys406/Lab_Handouts/Sonic_Mechanical_Resonance_DAQ_Syst.pdf>

Lots of other interesting stuff on that site:
<https://courses.physics.illinois.edu/phys406/index.html>

Ingo