If two waves are perfectly in phase what will be the result of their combination:
If two identical waves have a phase difference of 180 degrees, they are said to be:
Doubling the wavelength of a wave but maintaining it’s velocity will
The distance between two consecutive positive maximum peaks on a sine wave is equal to:
Sound waves in air are represented by the air pressure alternating between:
An effect created by combining a signal with short, modulated delay with the same undelayed signal inducing a series of sweeping phase cancellations is:
a) reverb
b) flanging
c) phasing
d) chorusing
The threshold of a noise gate sets the level:
a) at which the side chain is attenuated
b) below which the signal is amplified
c) above which gain reduction takes place
d) below which gain reduction takes place
For compression to commence at 0 VU on a professional piece of equipment you would set the threshold at:
a) 0 dBu
b) +8 dBu
c) -4 dBu
d) +4 dBu
A compressor has the threshold set at +5 dB and a 2:1 ratio. An input signal of +15 dB would be output at:
a) +5 dB
b) +15 dB
c) +10 dB
d) 0 dB
The threshold setting on a compressor defines the level:
a) above which gain reduction takes place
b) below which gain reduction takes place
c) above which noise is reduced
d) below which expansion takes place
If you use a compression ratio of 8:1, set your threshold at +4 dBu (O VU) and apply a signal of +20 dBu, what will be the output level?
a) O VU
b) +2 dBu
c) +6 dBu
d) +8 dBu
In a typical limiting situation you would:
a) set threshold so that the programme is always subject to gain reduction and use a low ratio
b) set threshold so that only peaks are subject to gain reduction and use a low ratio
c) set threshold so that programme is always subject to gain reduction with a high ratio
d) set threshold so that only peaks are subject to gain reduction and use a high ratio
