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more drum frequency responses

hifijohn

hifijohn

Active Member
floor tom-starts at 70hz with a very strong 160hz peak nothing really above 900hz.there is a smalll 3by4 piece of cloth taped to the edge to damped some of the sound.

cow bell-very few harmonics,starts at 900hz, everything below I will ignore,its noise from my floor tom.

cymbal with roofing nails-stock cymbal which I drilled 10 holes and put roofing nails in them, the sound is a big improvement over the stock sound, as you can see it is very rich in harmonics.

snare-very strong 200hz with a few harmonics, nothing over 800hz I have a 6by6 peice of cloth taped on it to dampen out the sound, without it the snare has far too much bit to it.

kick drum-very strong 60hz,but not much lower than the floor tom,few harmonics and nothing over 330hz.a small piece of cloth taped to the beater side and the beater is wrapped in some felt.the drum is raw , usually drummers put pillows inside to dampen out the sound and give it more of a 'thud' type of sound.



http://imgur.com/Q6kMIRm
http://imgur.com/uPKA57c
http://imgur.com/tyMxU6S
http://imgur.com/4OQJTQs
http://i.imgur.com/m7220ZD.jpg
 
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I like the Aquarian damping rings,,,,, on everything. You don't have dead spots in the head and you can tension as you like, also brass rivets for the cymbals are better, imo,,,,,,,,,, though I use Sabian HH and no rivets.
 
A bit surprising how much low end the floor tom has.

You really like that new toy huh :-)

I mentioned microphone response in one of your other threads about this. Since then while working on a wireless mic system I had to RTFM to see how to run it. It said the frequency response is 50-18,000 +/- 1 dB. I think that is pretty good.

You would probably like one of those old organs. Not the new ones with "18,000 voices" but the old kind with the sliders to mix in the harmonics. I've actually played the harmonics on one of those old things. By that I mean just kept one key pressed down and used the sliders with the harmonics to make a tune, sorta.


How heavy is you rig ? If it is portable enough you could take it to a music store and try all kinds of different weird instruments. I mean, of course you got a bunch but they might have some exotic thing from South America or whatever. What about those half round drum things they use in the Jamaican music ? Those things sound really weird which makes me wonder what kind of harmonics they have. In fact disharmonics.

A bunch of stringed instruments might be interesting as well. Like an acoustic guitar, going up the neck the harmonic content will change because their mix is quite dependent upon the cavity as well as the (placement of the) bridge. And in fact how it is strummed or picked or whatever. The closer to the center of the string, the more of the fundamental frequency you get.
 
Cool to see the frequencies. I've been playing for over 30 years and I've never seen the frequency response of any of my drums. thanks for the post!
 
I'm surprised there's no upper frequencies corresponding to the impact of the drumstick or the beater on the drum head.

Chip
 
JURB said:
A bit surprising how much low end the floor tom has.

You really like that new toy huh :)

I mentioned microphone response in one of your other threads about this. Since then while working on a wireless mic system I had to RTFM to see how to run it. It said the frequency response is 50-18,000 +/- 1 dB. I think that is pretty good.

You would probably like one of those old organs. Not the new ones with "18,000 voices" but the old kind with the sliders to mix in the harmonics. I've actually played the harmonics on one of those old things. By that I mean just kept one key pressed down and used the sliders with the harmonics to make a tune, sorta.


How heavy is you rig ? If it is portable enough you could take it to a music store and try all kinds of different weird instruments. I mean, of course you got a bunch but they might have some exotic thing from South America or whatever. What about those half round drum things they use in the Jamaican music ? Those things sound really weird which makes me wonder what kind of harmonics they have. In fact disharmonics.

A bunch of stringed instruments might be interesting as well. Like an acoustic guitar, going up the neck the harmonic content will change because their mix is quite dependent upon the cavity as well as the (placement of the) bridge. And in fact how it is strummed or picked or whatever. The closer to the center of the string, the more of the fundamental frequency you get.
Click to expand...


I have plenty of other posts, including acoustic and electric guitar, bowls, and wind chimes.even two very loud thunder claps.
BTW the jamaican drums are called steel drums and they are made from old 55 gallon oil drums.
 
Yeah those steel drums, don't ask me to tune one. I saw a video on how they're made and, forget about it.

Anyway, the next musical instrument you might want to try is a big block engine with nothing but glass pack mufflers on it. These do not sound like modern cars that "roar", these things shake the ground.

Another thing that would be cool is a bunch of different gunshots.

I am just trying to give you ideas. I appreciate what you have brought in here so far and want to help. Is there a truck stop nearby ?

This could get VERY interesting.
 
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