# Fundamental Frequency Analysis

Hey all,
Currently working on an extended experimental investigation for yr 12 about Mersenne’s Law and whether or not it applies to monofilament fishing line.
Other sources have said that the fundamental frequency is the furthermost left peak, however Mersenne’s law predicts that the frequency should be approximately 700Hz higher than the first peak. Ex:

f=1/(2×0.44) √(5.8/(0.544×〖10〗^(-5) ) )=1173.36Hz
However the furthermost left peak states that at this tension and length, the frequency is around 200Hz. There is a peak around 1200Hz which correlates with the frequency suggested by Mersenne’s Law. I was wondering if Audacity generally picks up lower frequencies better than higher frequencies? Or if there is a technological explanation for this phenomena?

Thank you,

Your question is not clear because you have not said which tools in Audacity you are referring to.
Audacity’s tools deal with signal processing and analysis rather than physical phenomena, so to interpret the results in physical terms is a matter for the person performing the analysis.

Some information about some of Audacity’s tools:
http://manual.audacityteam.org/man/plot_spectrum.html
http://manual.audacityteam.org/man/spectrogram_view.html
http://wiki.audacityteam.org/wiki/Nyquist_Analyze_Plug-ins#Pitch_Detect

Thanks Steve,
Sorry for being too general. I was referring to the “Plot spectrum” tool in regards to frequency.
I feel as though this phenomena has more to do with the microphone experiencing the proximity effect and less to do with the program.
I was just wondering if this phenomena was related to the actual program’s “plot spectrum” setting and if it generally analyses lower frequencies in more depth.
Thank you,