SOUNDS LIKE YOU NEED TO

FRESHEN UP

THIS IS A SONG ABOUT SOUNDWAVES

AND IT GOES A LITTLE

SOMETHING

LIKE

THIS

IT’S THE SOUNDWAVE TESTYOU COULD SAY IT’S THE BEST

IT AIN’T THAT HARD TO DOCOME ON I’LL WALK YOU THROUGH

SOUNDWAVES ARE

A VIBRATIONAL DISTURBANCE

THAT DEMANDS MECHANIC SERVANTS

MOVING MOLECULAR ENERGY

SCATTERING SOUNDS FOR YOU AND ME

COMPRESSION IS

BEGINNING WITH COMPRESSION

TO KICK OFF THIS RAPPING SESSION

SHORTENING THE RANGE OF SOUND

LET’S SEE WHAT ELSE WE FOUND

FREQUENCY

LET’S GET INTO FREQUENCY

COME ON AND SING WITH ME

THE NUMBER OF TIMES

PER SECOND SOUND VIBRATIONS RHYME

HERTZ ( Hz)

THEY’RE EXPRESSED IN HERTZ

A MEASUREMENT THAT WORKS

AN ANALYSIS OF FREQUENCY

FOR CPS NUMERICALLY

● CPS IS CYCLES PER SECOND

INFRASONIC

ONTO INFRASONIC

YOU KNOW IT HAS TO BE

THE RANGE BELOW THE FREQUENCIES

HEARD BY YOU AND ME

ULTRASONIC

ON THE OTHER HAND

ULTRASONIC BRINGING CHANGE

IT’S THE OPPOSITE OF INFRA

IT’S ABOVE OUR RANGE

PITCH

MOVIN’ ON TO PITCH

AND YOU KNOW IT’S PRETTY GREAT

IT’S THE HIGHNESS OR THE LOWNESS

OF THE SOUND THAT WE CREATE

FUNDAMENTAL

THE LOWEST FREQUENCY

OR THE FIRST HARMONIC

EITHER WAY YOU THINK OF IT

THE FUNDAMENTAL IS MELODIC

SOUND FREQUENCY SPECTRUM

SOUND FREQUENCY SPECTRUM

IS WHAT WE CAN HEAR

RANGING 20-20K Hz

NOW WE’RE SHIFTING INTO GEAR

OCTAVE

THE 2:1 RATIO IS CALLED AN OCTAVE

SIDE NOTE:AN OCTAVE IS THE NOTE 1 AND 8 PUT TOGETHER TO

FORM A PERFECT TONAL PITCH

LET’S GET BACK ON TRACK

BASS

BRINGING US TO BASS

THE LOW END OF WHAT OUR EARS PICK UP

RANGING 20-320Hz

THAT’S PRETTY DEEP-GET MY JOKE! AHEM

WASSUP

MIDRANGE

THE STUFF THAT WE CAN HEAR

THAT CAN MAKE US SHED A TEAR

320-2560

H-E-R-T-Z

CHORUS

IT’S THE SOUNDWAVE TESTYOU COULD SAY IT’S THE BEST

IT AIN’T THAT HARD TO DOCOME ON I’LL WALK YOU THROUGH

TREBLE

NOW WHAT COMES NEXT

WE’RE LOOKING FOR TREBLE

THAT HIGH PITCH OCTAVE IS SUCH A REBEL

STILL TREBLE

5120-200KHz

THE HIGHEST OCTAVES AUDIBLE

TO YOU AND ME

EQUALIZATION

EQUALIZATION IS

A PROCESSING DEVICE

TO BOOST, FADE, OR SHELVE

FREQUENCIES TO MAKE THEM NICE

AMPLITUDE

AMPLITUDE

IT’S THE MAGNITUDE

IT’S A SOUNDWAVE OR AN ELECTRIC SIGNAL

MEASURED IN A DECIBEL

DECIBEL (dB)

IT’S A RELATIVE AND LIMITLESS UNIT

TO MEASURE RATIO OF TWO QUANTITES

IT’S EASY WHEN YOU THINK ABOUT IT

JUST A WAY TO MEASURE MULTIPLES CAN’T YOU SEE

WAVE LENGTH

THE LENGTH BETWEEN THE WAVE

IS WHAT COMES NEXT

IT’S EVEN IN THE NAME

WHAT MORE DID YOU EXPECT?

VELOCITY

SPEED IN A GIVEN DIRECTION

LIKE A FAST PACED RAPPING SECTION

VELOCITY IS AGILITY

COME ON, AND SING WITH ME

HARMONIC

THE FUNDAMENTAL FREQUENCY’S

MULTIPLE

IS WHAT HARMONIC’S ALL ABOUT

MAKE THE TONE SOUND FULL

PHASE

INTERACTION WITH

ONE WAVE OR ANOTHER

EITHER ACOUSTIC OR ELECTRIC

NOW WHAT DID WE DISCOVER?

IT’S THE SOUNDWAVE TESTYOU COULD SAY IT’S THE BEST

IT AIN’T THAT HARD TO DOCOME ON I’LL WALK YOU THROUGH