Music & Audio Advice Audio Fundamentals 2

Question 1

What does the term 'bit depth' refer to in digital audio?

Accepted Answer

The number of possible amplitude values per sample

Answer

Bit depth determines the number of discrete amplitude levels available for each audio sample, directly affecting dynamic range.

Question 2

Which frequency range is generally considered the human hearing spectrum?

Accepted Answer

20 Hz to 20,000 Hz

Answer

The standard accepted range of human hearing spans from approximately 20 Hz to 20,000 Hz, though this narrows with age.

Question 3

What is the primary purpose of a low-pass filter in audio processing?

Accepted Answer

To allow frequencies below a cutoff point to pass through

Answer

A low-pass filter attenuates frequencies above its cutoff point while allowing lower frequencies to pass unaffected.

Question 4

In a balanced audio connection, what is the third conductor used for?

Accepted Answer

Carrying an inverted copy of the audio signal

Answer

Balanced connections use two signal conductors carrying opposite-polarity versions of the same signal, which allows noise cancellation at the receiving end.

Question 5

What does 'latency' refer to in a digital audio system?

Accepted Answer

The time delay between input and output of an audio signal

Answer

Latency is the measurable delay introduced as audio passes through analog-to-digital conversion, processing, and digital-to-analog conversion.

Music & Audio Advice Practice Test

Music & Audio Advice Practice Test

Music & Audio Advice Audio Fundamentals 2