Sample Rate

Question 1

It’s the number of times that information about the analogue signal is captured by the analogue to digital conversion. Most common are 44.1kHz and 48kHz (default settings for most ?). A standard audio CD has a sample rate of ?

Answer 1

DAWs.

44.1kHz.

Question 2

For audio captured at 48kHz, the ? taking a snapshot of the analogue signal’s amplitude 48,000 times a second. Every time it’s captured it stores a string of ? numbers 16 or 24 digits long (depending on bit depth).

Answer 2

Sampling.

Binary.

Question 3

The ? ? states that the sample rate during ADC must be twice the highest frequency of signal captured. The sample rate determines the frequency response of the ? The higher the sample rate and bit depth, the more space samples take up.

Answer 3

Nyquist theorem.

Sampler.

Question 4

When the sample rate’s not high enough, ? can occur, when frequencies above the ? frequency are captured and incorrectly mapped to frequencies within the audible frequency range below the Nyquist frequency, causing unwanted ? in the reproduced signal.

Answer 4

Aliasing.
Nyquist.
Artefacts.

Question 5

Most ADCs incorporate anti-aliasing filters; essentially low pass filters that are placed before the ? to remove frequencies over half the frequency of the sample rate.

Answer 5

ADC.

Question 6

? plug-ins can be used to replicate the alias tone that would occur in vintage samplers, creating a ?-? sound.

Answer 6

Bitcrusher.

Lo-fi.

Question 7

Analogue signal can have curves whereas a digital signal can only ever be on or off. This “? ?” is called ? and is the basis of ADC.

Answer 7

Closest match.

Quantisation.