CMP Audio Mixing Techniques 4

Question 1

What is 'frequency masking' between a kick drum and bass guitar, and what is the most common fix?

Accepted Answer

Their fundamental frequencies overlap in the low end; fix with sidechain compression or EQ carving

Answer

The kick and bass often compete in the 60–120 Hz range; sidechain compression ducks the bass when the kick hits, while EQ carving creates separate spectral space for each.

Question 2

What does increasing the 'Q' (quality factor) on a parametric EQ band do?

Accepted Answer

It narrows the bandwidth, making the boost or cut more surgical and precise

Answer

A higher Q value narrows the bell curve, concentrating the EQ adjustment to a tighter frequency range for more precise corrections.

Question 3

In stereo mixing, what is the Mid-Side (M-S) technique used for?

Accepted Answer

Separately processing the center (mid) and stereo difference (side) signals of a stereo track

Answer

M-S processing decodes a stereo signal into its mono center (M) and stereo difference (S) components, allowing independent EQ or compression of each.

Question 4

What is 'clipping' in a digital audio context and why is it destructive?

Accepted Answer

When a signal exceeds 0 dBFS, causing the waveform to be truncated and producing harsh distortion

Answer

Digital clipping occurs when a signal exceeds the maximum representable value (0 dBFS), resulting in flat-topped waveforms and audible harmonic distortion.

Question 5

Which type of reverb is most suitable for creating a short, tight ambience that glues drum tracks together without washing them out?

Accepted Answer

Room reverb with a short decay time (under 400 ms)

Answer

A short room reverb adds subtle spatial cohesion to drums while keeping the attack crisp and the overall sound tight and focused.

(CMP) Certified Music Producer Practice Test

(CMP) Certified Music Producer Practice Test

CMP Audio Mixing Techniques 4