This Is A Test Acapella Letras

Ladies and gentleman
We are experiencing technical difficulties
Warning: This is a total blackout
Please stand by as we are currently testing our systems

Testing lighting equipment: LED screens
Testing blinders
Testing lasers
Testing 3D video
Testing pyro-technics. Stand by
Ok - We are about to do a full-frequency sweep

Twenty hertz
Fifty hertz
Two hundred hertz
Four hundred fourty hertz
One kilohertz
Two kilohertz
Five kilohertz
Ten kilohertz
Ok - Subwoofer kick test
Balance check:
Left channel - The sound should now be at the left speaker
Right channel - The sound should now be at the right speaker

Left channel
Right channel
Left channel
Right channel
Left channel
Right channel
Left channel
Right channel

Left, right
Left, right
Left, right
Left, right
Left, right
Left, right
Left, right
Left, right
Left, right
Left, right
Left, right
Left, right
Left, right
Left, right
Left, right
Left, right
Left, right
Left, right
Left, right
Left, right

This is a test
This is a test
This is a test

Before proceeding with the show we'll have to do one more test:
Testing at maximum volume
Starting in ten, nine, eight, seven, six, five, four, three, two, one

This is a test
This is a test