By Kent Carmical | Sat, 01 Aug 2009
If you really want a really powerful
piano sound, forget pansy grands,
and go butch with an upright. Many
uprights—particularly the taller ones
with longer string lengths—yield killer
recordings, so forget about tip-toeing
around that Bösendorfer grand.
Here’s how to capture upright piano
sounds with impact, weight, and
almost frightening presence.
Get That Thing In Tune
Sure, you can say that out-of-tune
piano is part of your sound, but to
the vast majority of creatures with
ears, out-of-tune piano is like having
your eyebrows plucked with tweezers.
Spend a couple of hundred
bucks to make sure the thing is in
tune and working properly a few
days before recording.
Location. Location.
Location.
Experiment with moving the instrument
around the room to find the
best sounding spot. Because uprights
are designed to be up against a wall,
my experience has taught me that it
is the best place to record them—
especially for a real up-front and present
sound.
Tear That Sucker Down
The main problem with uprights is the
cramped size of their cases. The small,
resonant body of the piano is a nightmare
of complex acoustic reflections,
and just sticking a mic inside the top
probably won’t cut it. You need to
open the piano up so it can breathe!
While it varies from instrument to
instrument, most upright pianos
come apart the same way. Open the
hinged lid on the top. Once the lid is
open, you will probably see a pair of
hinged pegs holding the front face of
the piano together. Unlock the pegs
and pull the front off. This exposes
the hammers and strings, allowing for
a greater degree of mic placement. If
you really want to go hog wild,
remove the plate that covers the bottom
part of the strings (right in front
of the player’s knees). This will
increase the piano’s projection, and
make the sound much clearer.
Mic It Up
Now you are ready to explore some
mic techniques. As we’re going for
power, we’ll ditch any notion of
ambient mics, and get real up close
and personal. After rigorous experimentation,
I discovered the most
powerful sound came from the back
of the piano. You’d think this would
provide a muffled sound, but with
the extraneous body panels
removed, the sound really cranks out
the backside. The percussive sound
from the hammers is still heard, and
the exposed soundboard adds some
depth, so our power is enhanced
with tone. Miking from the back also
diminishes noise from pedals, creaky
benches, and the player (grunts,
sighs, sing-alongs, etc.).
I recommend using two mics on
the backside, positioned to capture a
balance between the high and low
strings. Placing the mics does take
some experimentation. I got the best
results using two AKG C1000 smalldiaphragm
condensers, but any
small-diaphragm condenser will do a
great job. Each mic was placed
about two or three inches from the
exposed soundboard, and pointing
at the bass or treble strings. It is
possible to have phase-coherency
issues with two mics, so if things start
sounding weird or thin or muddy,
simply move the mics around until
everything sounds full and wonderful.
If you need more isolation, put a
blanket on the wall behind the piano,
but I liked the natural reverberation
the bare wall provided.
For my final hot-setup mic technique,
I placed an Audio-Technica
AT4033 large-diaphragm condenser
on a boom, and positioned it to be
the same height as my ears, so I
could record a track that was essentially
the same sound I was hearing
from in front of the piano while I was
playing. This track is great for blending
with the rear mics to construct a
truly mammoth and articulate sound.
Hit It!
If you want a big piano sound, you’d
better be prepared to bash the bejesus
out of the keys. Sorry, this is old
school, so there’s no MIDI information
you can edit to make the audio loud if
your ladyfingers aren’t up to the
task. Listen to the Beatles’ “Lady
Madonna.” Do you think Paul was
tickling the ivories, or hitting it like
each key had a picture of John
Lennon scrimshawed into the ivory?
As for tracking, piano puts out
mucho harmonic content, and there
are peaks that meters just don’t see,
but can slaughter your DAW with evil
distortion. Use your ears to listen carefully
for any overload the VU meters
might be missing. If you need to tame
the beast, Universal Audio’s LA-2 plugin
works wonders to stop the
overloading, and it also can add additional
punch to what should already
be a piano sound that will detach your
retinas if you’re not careful.