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Physics of chest slammin'
kick drum
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Posted by michael on April 02, 2002
There is no question that some of the newer technologies provide
a great leap in power transfer, accuracy, impression and dynamic
response.
Posted by Tom Young on April 02, 2002
"There is no question that some of the newer technologies provide
a great leap in power transfer, accuracy, impression and dynamic
response."
None whatsoever. I seldom go down this road, but when I think of
all the great bands and events that I did 25 years ago and how they
would have sounded with today's technologies (not to mention my
enhanced skills).... whew !
In most ways it's a good thing they were in real time.
ty
Posted by michael on April 02, 2002
That's the difference in marketing and engineering.
Posted by Jim McKeveny on April 02, 2002
No two things in the history of mankind have been more quantized,
scientized, and analyzed more than the weather and the stock market.
How reliable would you regard their forecasts (other than on a general
trend level)? You are not being cynical,Tom, you are being wise.
Regards,
Jim McKeveny
Posted by Nathan on April 01, 2002
well, a lot of the process behind it comes down to a good mic and
mic placement..well, as well as great speakers/amps that will have
tons more headroom for everything else once you get the kick slamming...b/c
i've mixed on shows that they INSISTED that i mic the kick in a
room so small that you didn't need it anyway..and the system just
would not take the kickdrum and amplify it enough....just not enough
power....
but back to mic placement...in theory, most kick drums are tuned
to have the correct wave length for a great punch right at the resonant
head of the drum...so many people stick the mic inside the drum
and close to the batter head, but the problem is you dont get a
full and complete wave length at the mic...so i say place the mic
right at the hole in the head (if there is one) pointing off axis
of the beater...also, the middle of the drum is most always a dead
spot, so always place the mic off axis for maximum punch...but there's
not TOO much physics behind it...
b/c in the real world, from night to night, you deal with kicks
that ROCK and kicks that SUCK...so you just gotta move that mic
around till it sounds good, or sometimes eq the hell out of it..and
sometimes compress, sometimes gate to get out all the weirdness...it
just depends on the kick....but if you start with a good placement
then if every other varible in the system is up to par, then everything
will be rocking....I'm not that big of a fan of dynamics processing
on drums...see, drums aren't too dynamic....the DRUMMER can be dynamic,
but the drum itself isn't too dynamic...most of the time it's on
or off...for toms especially..so i dont usually gate/compress toms
or a kick..
b/c kicks are the same way...on or off; there or not......but you
always have to start with a good drum FIRST...you cant expect to
mic a crappy set and make it sound good...you're just responsible
for reinforcing what is already there...ok, sorry for the whole
disertation/rant...but i hope you picked up atleast ONE thing that
helps you out of this essay...
Best Regards,
Nathan Hamler.
Posted by Mikael Holm on April 03, 2002
- “in theory, most kick drums are tuned to have the correct
wave length for a great punch right at the resonant head of the
drum...so many people stick the mic inside the drum and close to
the batter head, but the problem is you dont get a full and complete
wave length at the mic...so i say place the mic right at the hole
in the head” -
What the f*ck are you talking about? Chest slamming lows are in
the 60-80Hz area which is approximately 18-13ft in the wavelength
department. The reason you get more lowend out of the kick drum
near the hole is because the speed and amount of airflow is largest
there.
Most of the attack and click is right there next to beater.
Miffe
Posted by michael on April 02, 2002
This is a mistake.
Kick is about system implementation. Imagine your system sitting
with a L,R XLR ready for you to plug in your console. Ability of
a PA system to provide "Kick" and effeciently, accurately
and dynamically "move air" is a function of system design/format/implementation
and has absolutely nothing to do with quality of program material.
To achieve "power transfer" in PA is an issue of dsp/amplifier/speaker
technology.
To talk about mic choice/placement is like thinking the wrap on
a steering wheel affects the speed of an automobile, the torque,
the motor, the function of the transmission.
That's the truth, Ruth.
Posted by Nathan on April 02, 2002
Michael: Imagine your system sitting with a L,R XLR ready for you
to plug in your console.
Nathan: what that had to do with anything i have no idea...?????
Michael: To talk about mic choice/placement is like thinking the
wrap on a steering wheel affects the speed of an automobile, the
torque, the motor, the function of the transmission.
Nathan: For you to say that mic choice/placement has nothing to
do with a good kick sound just shows your ignorance..any good engineer
knows that good sound ALWAYS starts at the source...and i can promise
you that a sennheiser e602 sounds much better than an SM81 on any
kick, and i can assure you that an e602 placed right at the hole
in the resonant head, off axis with the beater will sound much better
than the same mic placed 2 inches from the batter head, on axis
with the beater....so right there in one paragraph i have explained
to you why mic choice/placement plays such a HUGE role in good sound.
Now, i maybe have been wrong to explain kick mic placement when
he really wanted to know about the physics of a system haveing to
do with everything after the console...so my deepest apologies in
that respect...
Regards,
nathan hamler.
and by the way, i guarantee that i well placed mic will in turn
allow/cause the speakers to move MUCH more air than a not well placed
mic...
Posted by michael on April 06, 2002
Nathan: For you to say that mic choice/placement has nothing to
do with a good kick sound just shows your ignorance..any good engineer
knows that good sound ALWAYS starts at the source...
michael: Don't use qualifiers like "always" with me. I
provide PA for three hundred acts a year? Do I care what they plug
into it? No I do not. Do I provide a reference system that a good
engineer can use? Yes I do.
break for a second. Nothing worse that a witless child with a loud
mouth. You picked the wrong tree to carve your initials "zero
zero" into.
Nathan: and i can promise you
michael: And I can promise you you probably wouldn't know a PA if
it bit you on the ass, at least the part that matters. -of the PA,
not your ass.
: Regards,
: nathan hamler.
Nathan: and by the way, i guarantee that i well placed mic will
in turn allow/cause the speakers to move MUCH more air than a not
well placed mic...
michael: And I guarantee I will be getting six hours of sleep a
night for the next ten days (5 hours on the time change day) and
working with some of the best techs and production. (NY variety)(And
I am learning much) Too bad I have to walk half a mile to get through
the venue.
Well, Nathan, I invite to return to your "ADAT thinking."
Otherwise, when you get ready to do PA you let me know. And see,
I took five minutes out of my six hours of sleep tonight to reply
to you.
Posted by yep on April 11, 2002
ya know... you're right... the guy that gets the FOH engineer his
coffee doesn't get a lot of sleep...
Posted by michael on April 11, 2002
That's exactly whatI have been doing - delivering coffee and the
like. Once the system is rigged and wired it sits like a rock. At
least this engineer is really good at what he does.
But I got to tell you, corporate industrial production is a nasty
nasty business. Watching executives getting picture perfect from
a makeup crew and then going to the podium to do a "heartfelt"
reading from scripted shit from a pile of teleprompters is a terribly
depressing affair. Trite crap... oh god. These guys are robots.
How can you give a personal speech to your staff when reading telepromter
script written by someone else? - and reading it as if you are saying
something from your own thoughts and mind. Something is very very
wrong with this scenario.
Posted by Andy Peters on April 03, 2002
Nathan,
I agree with you regarding microphone choice and placement, but
you miss michael's point, which is that if the PA ain't got no oooomph
nor drive, none of the punters will be feelin' that chest-thumping
dump-inducing low-end asskick no matter what the mic, placement,
drum or drummer are or ever will be.
Assuming that the system can do what you desire, then the discussion
of where to put the mic becomes important.
I'm inclined to think that drum-tuning is more important than mic
choice, and I agree with the gang here regarding detuning the batter
head (and the resonant head, too). OK, so ya put your foot through
the batter head -- the head was shot, anyways.
--a
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