Wease
Joined: 17/07/03
Posts: 1986
Loc: Sunny Walsall
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car speaker rumble - what frequency??
#986945 - 11/05/12 08:24 PM
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ok - so we're mixing the new ep and everything is fine and dandy - coming to
the end of one song and decide to burn a cd for the car (to check the mix in the old
fashion way) and the speakers are rattling like [ ****** ] on the bass line what's the freqency (kenneth) that causes this and should i mix that frequency
out I want the songs to sound like i mixed them in the (ahem) "studio" but the
old bird (s reg ford mondeo estate- the finest of motors!) speakers are rattling like a
(insert favorite lady of the night undergarment simile here) - what am i doing wrong? -
it's just the bass line thats rattling... 
-------------------- http://soundcloud.com/seaapes
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Martin Walker
Watcher Of The Skies
Joined: 28/02/01
Posts: 16387
Loc: Cornwall, UK
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Re: car speaker rumble - what frequency??
[Re: Wease]
#986966 - 11/05/12 10:47 PM
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Hi Wease! It's difficult to tell without listening, but I suspect you might
have a car stereo system with a large and somewhat overblown bottom end, and a mix that's
been created on nearfield loudspeakers with more modest lows. Thus you're not hearing the
offending frequencies until you get in the car  Alternatively, a little multiband compression might tame excess low-end dynamics. Yet another alternative is that it's just your car stereo system that rattles at
some frequencies, and nothing to do with your mix  Martin
-------------------- YewTreeMagic
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chris...
active member
Joined: 12/03/03
Posts: 4152
Loc: Glasgow
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Re: car speaker rumble - what frequency??
[Re: Martin Walker]
#986973 - 11/05/12 11:36 PM
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Quote Martin Walker:
your car
stereo system that rattles at some frequencies
That seems likely, especially if it's the orig factory fitted "sound"
system.
The frequencies of the rattles will likely be specific to your car.
So you'd need to make your own measurements to determine the frequencies. Burn a test CD
with sine wave noises at a number of (known) frequencies, and see which make it rattle.
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Wease
Joined: 17/07/03
Posts: 1986
Loc: Sunny Walsall
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Re: car speaker rumble - what frequency??
[Re: Martin Walker]
#987011 - 12/05/12 10:09 AM
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Quote Martin Walker:
Hi Wease!
It's difficult to tell without listening, but I suspect you might have a car
stereo system with a large and somewhat overblown bottom end, and a mix that's been
created on nearfield loudspeakers with more modest lows. Thus you're not hearing the
offending frequencies until you get in the car ...
i think thats exactly the
issue.....i've just cut (filtered with logic's eq) everything below 10(ish) Khz(is that
right?) with a 48octave filter thingy (lowpass or highpass - i never remember which one it
is!) which hasn't effected the sound on my nearfields - hoping that solves the issue
somewhat.
It's unusual because the bass drum (which is quite pumping in a good
way - a first for me, and something i'm quite chuffed about ) isn't
rattling anything....just sweetly banging away....!
low end rumble eh.......the
bain of the small project studio and bad drummer mixer
--------------------
http://soundcloud.com/seaapes
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Martin Walker
Watcher Of The Skies
Joined: 28/02/01
Posts: 16387
Loc: Cornwall, UK
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Re: car speaker rumble - what frequency??
[Re: Wease]
#987460 - 15/05/12 01:14 AM
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Hi Wease! I suspect you mean 10Hz rather than 10kHz  Oh, and you could probably increase that to 30Hz without causing any real problems to
your mixes. Martin
-------------------- YewTreeMagic
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James Perrett
Joined: 10/09/01
Posts: 9659
Loc: The wilds of Hampshire
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Re: car speaker rumble - what frequency??
[Re: Wease]
#987548 - 15/05/12 10:59 AM
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That's one of the good things about NS10's - the white cone/black surround made it easy to
see when there was too much bass. James.
-------------------- JRP Music - Audio Mastering and Restoration.
http://www.jrpmusic.net
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Mixedup
active member
Joined: 03/09/03
Posts: 4254
Loc: Cambridge, UK
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Re: car speaker rumble - what frequency??
[Re: Martin Walker]
#987572 - 15/05/12 01:13 PM
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Quote Martin Walker:
Hi Wease!
I suspect you mean 10Hz rather than 10kHz
Oh, and you could probably increase that to 30Hz without causing any real problems to
your mixes.
Martin
+1. I can't really hear very low bass from my system in my room, so I generally
slap a 30Hz high-pass filter at the top of the mix bus channel as a safety (often on group
busses as well, as the LF energy can affect some processors), and usually also collapse
frequencies below 60-100Hz on the mix bus to mono so that the LF energy is equally
distributed across the speakers whatever the system. And will often use a frequency
analyser just to check that there's nothing untoward happening as well (the low end will
always look 'bigger' but it's specific notes/resonances you're on the lookout for).
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Wease
Joined: 17/07/03
Posts: 1986
Loc: Sunny Walsall
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Re: car speaker rumble - what frequency??
[Re: Wease]
#987601 - 15/05/12 03:14 PM
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thanks for the replies guys I'll try the 30Hz (not kHz - duh!) filter it's really just the bass line - kinda really sticks out! - I'll also try on
the mix buss - and may even do it on the drums buss - i usually don't buss the bass
tho.... I did look at logic's own metering things - and didn't see any really
big spikes in any unusual areas.....
-------------------- http://soundcloud.com/seaapes
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