By | Sat, 01 Jan 2011
By Michael Cooper
A huge-sounding bass track can take an otherwise
thin, weak mix and transform it into a big, fat bully. Here
are some bad-ass tips to bolster your bottom line.
Super-Size My Room
If you plan to mike up a bass amp and cabinet, stick
your rig in the biggest room you’ve got (as long as it’s
not too reverberant). Bass frequencies have very long
wavelengths that need lots of room to develop. In
contrast, small rooms inherently have very uneven
bass response that can make a bass track alternately
swell and dip on different notes; that makes it very
difficult to set the track consistently at the right level
during mixdown.
Stick the cabinet in a carpeted room or one filled
with lots of absorbent acoustical products, such as
studio foam or compressed-fiberglass wall panels.
This will reduce any reverb that would otherwise
make your bass sound like it’s playing inside a culvert.
Move the Amp and Mic
Don’t have a big room to record in? Move the cabinet
around your smaller room until you find the spot with the
strongest and most even bass response. Sit the cabinet
on the floor to coax super-low bass frequencies. Then
move the mic progressively farther away from the cabinet
until you find the perfect balance between bass
response and minimal room ambience; a distance of
two feet is usually about right. And don’t bother miking
the speaker cone that is positioned the highest in a
stack. Place the mic closer to the floor for deeper bass.
Let’s Split
Plug your bass into a direct-injection (DI) box that has
both high- and low-impedance outputs. Route the
high-impedance output to your bass amp and record
that signal with your mic to one track. Patch the lowimpedance
output of the DI box to a mic input on your
mixer or DAW’s I/O box, and record that signal to a
second track. At mixdown, you’ll have two bass tracks
to choose from (playing exactly the same part).
If you use both tracks at once, slap a very short
delay (set to 100% wet output) on the DI’d bass track to shift its phase to match that for the mic signal. For
every foot your mic is placed away from the cabinet,
delay the DI’d track 0.9 milliseconds. You’ll be
amazed at how much more bottom end the combined
tracks produce after making this phase adjustment.
Reamp
If at mixdown you decide you don’t like the sound of
either track (miked or DI’d), send the recorded DI signal
back out to your amp and record it again with different
amp settings or mic placement to taste. You’ll
want to run the track through a reamp box such as
the Millennia Twin Direct TD-1 enroute to your amp. A
reamp box conditions the signal so that it loads your
bass amp like it would if it were coming directly from
your bass guitar.
Don’t have a reamp box handy? Send the DI’d
track through one of the guitar-amp-simulation plugins
that offer bass-guitar patches. AmpliTube Fender
and Waves GTR3 excel here.
Kill the Clack
Bass guitars produce very little musically useful
sound in the highest audible frequencies. Unless
you’re particularly fond of pick and fret noise, lash a
low-pass filter (LPF) to your bass track and set it to
around 7kHz to filter out all the clackety-clack. Your
mix will have a tighter groove.
Take It to the Limit
Cudgel your bass track with a brick-wall limiter to
even out the dynamics and add some size-enhancing
grit. The Waves L1 Maximizer plug-in is my fave for this
tack. Lower the threshold until the bass sounds even
on most every note. Then, with the track soloed, squash
it a little further ’til you hear a tiny bit of distortion. You’ll
never hear the dirt as such once the track is placed in
the mix, but the bass will growl like a barnyard dog. If
you don’t own a brick-wall limiter, crank the bass
track’s fader so that the signal clips. The digital distortion
will sound harsh unless it’s filtered. But roll off all
the highs post-fader with an LPF, set to around 3kHz,
and you’ll be grinning from ear to ear.