Charlie McDonnell - Fun science sound

^CIt starts with an ^Gidea or an ^Ebimpulse to make a ^Fsound, And then a ^Cmessage gets sent ^Gto my head where my ^Ebvocal chords are ^Ffound.

And the^Bby vibrate, and cause th^Fe air to vibrat^Ce too. Then the ^Bbair gets shot out of my^F mouth on its way to ^Gyou!

^CThis vibration ^GI've just made ^Ebtravels as a ^Fwave, But if ^CI vibrated ^Gdifferently then it would ^Ebcause the wave to ^Fchange.

If I sing ^Bblow then the ^Ffrequency of the wave ^Cdrops. If I sing ^Bbhigh then the ^Ffrequency is high too. And if I sing loud then my micro-phone p^Gops!

The ^Csound wave travels ^Gthrough the air ^Ebunless it hits a ^Fwall Then the ^Chigher frequenc^Gies get absorbed and the^Eb deeper ones pass ^Fthrough

And that's why ^Bbwhen I'm behind a ^Fwindow I sound like ^Cthis. And if the ^Bbwall is hard the^F sound bounces back and you can hear an ^Gecho!

The sound is ^Ccaptured by my ^Gmicro-phone and ^Ebsorted digitally^F, That was un^Ctil you play this ^Gvideo and now your ^Ebspeakers are mimicking^F me

And now the ^Bbwaves are back and g^Foing into your e^Car. Only 6 more ^Bbsteps inside your head until you get to h^Gear!

^CSound is ^Gtouch at a ^Bbdistance, ^FWhen they say that ^Cmusic can ^Gtouch you, it l^Bbiterally do^Fes.

^CSound is ^Ga vi-ber-^Bbation, But ^Fthanks to modern ^Cscience ^Gwe can know that it's^Bb shaking our eardrums:

^BbAnd the drum then shakes some tiny bones ^CAnd the bones send vibrations to a liquid ^BbAnd the waves in the liquid bend some hairs ^CAnd the hairs send a signal to the brain ^BbAnd it's only when it forms a pattern in your ^Chead that you can ^Ghear!