← Gazillion Industries/Reading material
Chipmunk soul
Gazillion Industries ·
Somebody put a 1971 soul record on at the wrong speed, heard a woman
turn into a bird, and instead of fixing it built a sixteen-bar loop out of it. Two decades of
radio followed.
Chipmunk soul is hip hop built on soul and gospel vocals sped up or pitched up several
semitones, so the singer sounds smaller, brighter and faster than the record. You make one by
finding a vocal phrase with air around it, pitching it up three to seven semitones, chopping it
into a new arrangement, filtering the top and bottom so it sits, and putting hard drums
underneath. The character comes from the formants moving with the pitch, which is what makes a
grown singer sound like a cartoon.
The short version
- Source
- soul, gospel or disco vocal with space around it
- Amount
- up 3–7 semitones, or 33 rpm material played at 45
- Method
- repitch, so speed and pitch move together
- Chop
- rearrange the phrase, do not loop the bar
- Drums
- hard and simple: the sample is the melody and the hook
- Clean up
- high-pass the sample, leave the low end to the kick
Where it comes from
The technique is older than the nickname. Producers were speeding soul records up through the
early nineties, partly for the sound and partly because sampling time was expensive and a
shorter, faster sample cost less of it. What fixed it in the public ear was a run of Roc-A-Fella
records at the turn of the century, above all Jay-Z's "The Blueprint" in 2001, where Kanye West
and Just Blaze built most of an album out of sped-up soul vocals and drums that hit like a door
closing.
"Chipmunk soul" started as a dig. It stuck because it is accurate: a voice moved up far
enough stops being a person and becomes an instrument that no keyboard can imitate, still
carrying the phrasing of a singer who meant it.
How to make a chipmunk soul beat
- Find a vocal phrase two to four bars long with the band thin behind it.
- Repitch it up three to seven semitones, letting the tempo rise with the pitch.
- Set the project tempo to whatever the sped-up loop now lands on, often 85 to 100 bpm.
- Chop the phrase and play a new order, so the hook lands where your drums want it.
- High-pass the sample around 150 to 250 Hz so the kick owns the bottom.
- Take the top off above 10 kHz if the pitching made the sibilance sharp.
- Program drums that are simple and loud, and leave the sample alone during the fills.
- Play a bass line under the new key, not the old one.
SKRUU is
varispeed with pitch and time on separate knobs, reading out in semitones as well as speed, so
you can hear the exact point where a singer stops being a singer.
Pitch it the right way
Repitching, where the speed and the pitch move together, is the sound. A modern pitch shifter
that holds the tempo will give you the note without the character, because the formants stay
where they were and the singer stays adult.
Formant shifting explains the difference, and
varispeed covers the mechanism that ties speed
and pitch together.
Two practical notes. Pitching up shortens the sample, so a four-bar phrase at +5 semitones is
no longer four bars, and you either chop to fit or change your tempo. And pitching up raises the
noise, the hiss and the room with everything else, which is usually a feature: it is where the
record texture comes from once the drums arrive.
Where it costs you
It is a recognizable sound with a date on it, and a whole beat in that style announces the
era it belongs to. It is also unkind to sibilance: past about five semitones, S sounds turn into
small explosions, and a de-esser before the pitching saves an afternoon. Clearance is the real
cost, though. A pitched-up soul vocal is still someone's recording and someone's song, and
speed does not disguise anything from the people whose job it is to notice. See
how to flip a sample for the ways round that
which do not involve a lawyer.
Questions people ask
Did Kanye West invent chipmunk soul?
No. Pitched-up soul vocals were in hip hop through the nineties. His production with Just
Blaze on Roc-A-Fella records at the start of the 2000s, particularly Jay-Z's "The Blueprint" in
2001, made it a signature sound and gave the nickname something to stick to.
How many semitones should I pitch a soul sample up?
Three to seven is the usual range. Under three and it sounds like a mistake; past seven the
voice turns brittle and the consonants break up. Let the key of the sped-up loop decide the key
of the beat rather than the other way round.
What BPM is chipmunk soul?
Most of it sits between 85 and 100 bpm, because that is where a soul record sped up by a few
percent lands and where hard, simple drums have room to hit.
Why does speeding up a voice make it sound like a chipmunk?
Speeding up a recording raises the pitch and the vocal tract resonances together. Your ear
uses those resonances to judge the size of a speaker, so a uniformly raised voice reads as a
much smaller person rather than the same person singing higher.
What SKRUU does
SKRUU is two knobs that do not touch each other. PITCH runs from −20%
to +10% in 128 states and reads out in semitones as well as speed, with unity marked and a
double-click back to it. TIME moves the length on its own. With
ELASTIC on, a knob is sprung: move it, let go, and it travels back, with
SLOPE choosing the road it takes home out of sixteen shapes. The display is a
pitch comparator in semitones, what went in against what came out, so how far off the record you
are is a picture rather than a number.
Wrong speed, right record. People have been making a living off that mistake since the nineties.
Keep reading
- Formant shifting — What formants are, and why a pitched-up voice sounds like a smaller person.
- How to flip a sample — Five moves that change what a record means, not just where it starts.
- How to pitch a sample — Find the key, repitch or pitch shift, pitch the chops, and automate for movement.
- J Dilla — The life, the machines, how the drums really work, and the claims that do not hold up.
SKRUU — varispeed pitch and time stretch for Mac and Windows. Pitch and
time move independently, with sixteen elastic return shapes.
Hear it — $29