Difference between revisions of "Acoustic Guitar Bass Frequencies"
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Revision as of 13:54, 19 June 2007
Acoustic Guitar Bass Frequencies
Hilmar-at-Bose Speaks about B1s and Acoustic Guitar[1]
Oldghm[2], you did some really interesting experiments there. However, you have to be really careful when using an RTA. You can feed these things a pure sine wave at 80 Hz and by turning it up make the 63 Hz and even the 40Hz LED light up. They will be lower than the 80 Hz LED, but still come on. That does NOT mean, that the sine wave contains any other frequency than 80 Hz (it certainly doesn’t). It only means that the RTA has a pretty limited frequency resolution. The 63 Hz LED will respond best to 63 Hz signal but it’s in no way “blind” to 80 Hz signal. Thus being said, the actual frequency content is not easy to determine. All sounds that have a pitch are certainly constraint to 80 Hz and up (in standard tuning) and there isn’t actually too much energy at the fundamental. However, the “non-pitched” sounds like a hard string attack or whacking the top with your hand can very well have lower frequencies. Unfortunately, I don’t have any hard data on that, but we will measure that at some point.
- ↑ Hilmar-at-Bose PackLite Questions
- ↑ Oldghm comment on using an RTA PackLite Questions