*Theoretically* (question about frequency and sample rates)

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GamezBond

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since a Bass sounds only has about 20 vibrations per second or whatever, and a hihat may have 20,000, wouldnt it make more sense to keep bass sounds at like 48 khz and hi sounds such as hihats 96 khz????
 
I don't quite understand the question. are you asking about the nyquist theorem? The fundamentals of a bass guitar range from 41.2-343.2 hz., if it's played loudly or with a pick the harmonics can range upwards to 4 khz.
The frequency range of human hearing is 20hz.-20khz., it's very rare but a few people can hear upto 50khz. though the average person won't even hear 20hz. or anywhere near 20khz.
If you're asking about the nyquist theorem (wich states that the sample rate must be at least twice as much as the highest frequency to prevent aliases from being generated), the sample rate should be at least 40 khz.
there are many sample rates used along with 16 and 24 bit depths, but (and this is a matter of personal taste) 24 bit depth/88.2khz. sample rate is a popular combo.
it's interesting to record a song (off a c.d.) at all the different combinations of bit depths and sample rates and listen to the differences in how it sounds,you will be able to discern differences, in my opinion higher sample rates impart more "air", spaciousness and depth to the sound wich is most easily discernible in the sound of the reverb in the recording, especially the reverb on the vocals.
 
GamezBond said:
since a Bass sounds only has about 20 vibrations per second or whatever, and a hihat may have 20,000, wouldnt it make more sense to keep bass sounds at like 48 khz and hi sounds such as hihats 96 khz????
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not really, even if the bass signal was only 20 or so hz, which it isn't, it's still good to have a higher resolution digital signal for lot's of other reasons. In a general sense tho, I would think cymbals would benefit more from higher sampling rates.
 
In order for anything to be played back in time with each other, everything has to be working off the same clock. Different sample rates for different instruments wont work for this reason. Any way I have worked with some of the best 'slap and pop' bass players in the business. More than one of them have an EQ spike set between 15kHz and 18kHz. The harmonics of an instrument can extend many octaves above the fundamental. So how would you determine which instrument needed needed what resolution?
 
The fundamental frequencies may be in that range, but what about the overtones? Even if there were no overtones what happens when someone plays notes on a bass in the upper register?

Audio from either a bass or cymbal is going to be more than a simple sine wave.
 
masteringhouse said:
The fundamental frequencies may be in that range, but what about the overtones? Even if there were no overtones what happens when someone plays notes on a bass in the upper register?

Audio from either a bass or cymbal is going to be more than a simple sine wave.
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Thank you for saying that in a much more concise manner than I would have. You saved me a great deal of time.


Light

"Cowards can never be moral."
M.K. Gandhi
 
Light said:
Thank you for saying that in a much more concise manner than I would have. You saved me a great deal of time.


Light

"Cowards can never be moral."
M.K. Gandhi
Click to expand...

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'K :)
 
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