Search found 2 matches

by BillPalmer
Fri Jul 23, 2010 11:01 pm
Forum: Mac OS X
Topic: Spectrum - Frequency Analysis - Levels
Replies: 3
Views: 1303

Re: Spectrum - Frequency Analysis - Levels

Thank you, yes, the waveform I am looking at is a complex one - environmental sound, either background, or as influenced by nearby man made noise sources. In some cases you can see the spectrum signature of things like bird songs and crickets ... or the man made sound, but what was puzzling me was t...
by BillPalmer
Fri Jul 23, 2010 10:08 pm
Forum: Mac OS X
Topic: Spectrum - Frequency Analysis - Levels
Replies: 3
Views: 1303

Spectrum - Frequency Analysis - Levels

Hello, hope this is new - not found on search. Using Audacity to plot spectrum. When "Analyse Spectrum" is used, produces a nice result, but the sound levels vary depending on the sample rate chosen, and I do not understand why. Example: When 94 dB 1000 Hz calibrator is used on microphone, the sound...