Search found 7 matches

by SandyPandy
Thu Feb 01, 2018 11:38 pm
Forum: Windows
Topic: Spectrogram analysis help
Replies: 12
Views: 1018

Re: Spectrogram analysis help

Hi! So, I exported the data that gives me the exact values of the frequency peaks...but I had the following problems: 1. The maximum frequency as indicated by the exported data did not match what was shown on the sepctrogram graph. For the same audio I had put on the forum, the max frequency as indi...
by SandyPandy
Thu Jan 11, 2018 11:16 pm
Forum: Windows
Topic: Spectrogram analysis help
Replies: 12
Views: 1018

Re: Spectrogram analysis help

If you look at "Analyze menu > Plot Spectrum" with your sound, you will see peaks at about 3.16, 6.33, 9.51. 12.66 ... kHz You mentioned about finding the values of frequency peaks using plot spectrum...but they are just approximations right? How to get the exact values of the max and min...
by SandyPandy
Wed Jan 10, 2018 2:00 pm
Forum: Windows
Topic: Spectrogram analysis help
Replies: 12
Views: 1018

Re: Spectrogram analysis help

Thanks a lot for your help!
by SandyPandy
Tue Jan 09, 2018 11:46 pm
Forum: Windows
Topic: Spectrogram analysis help
Replies: 12
Views: 1018

Re: Spectrogram analysis help

Yes, that clarified it. I though harmonics and fundamental frequency were only concepts for standing waves and not any regular sound source (and for standing waves it is not just integer multiples by even multiplying with 2/3 or 4/3 depending on the way the standing wave is created). So, like how th...
by SandyPandy
Tue Jan 09, 2018 2:18 pm
Forum: Windows
Topic: Spectrogram analysis help
Replies: 12
Views: 1018

Re: Spectrogram analysis help

ahh yes yes...the doppler shift is a ratio of the frequencies. So to clarify, the two frequencies are - the fundamental one (is this the actual frequency of the sound source???) and the one at a different octave (which still gives same frequency ration representative of doppler shift)? Also why is p...
by SandyPandy
Tue Jan 09, 2018 11:18 am
Forum: Windows
Topic: Spectrogram analysis help
Replies: 12
Views: 1018

Re: Spectrogram analysis help

Thank You So Much! @steve. I followed the settings you put on audacity and it worked out. I too was suspecting the radius to be a problem, but I coudn't fix that as the spinning fan is unable to move a bigger ruler (too heavy). ;) I had a few more doubts on why it worked with these settings: 1. I th...
by SandyPandy
Tue Jan 09, 2018 8:16 am
Forum: Windows
Topic: Spectrogram analysis help
Replies: 12
Views: 1018

Spectrogram analysis help

Hi! So I was conducting this expeirment where I placed a buzzer at the end of a ruler and made it rotate with uniform circular motion using a spinning fan connected to a power supply. I recorded the audio using Audacity 2.2.0. The purpose of the experiment was basically to see how observed frequency...