Audio Fundamentals Flashcards
6 cards from real Music & Audio Advice practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Audio Fundamentals flashcards as text
What does the term 'bit depth' refer to in digital audio?
Answer: The number of possible amplitude values per sample
Bit depth determines the number of discrete amplitude levels available for each audio sample, directly affecting dynamic range.
Which frequency range is generally considered the human hearing spectrum?
Answer: 20 Hz to 20,000 Hz
The standard accepted range of human hearing spans from approximately 20 Hz to 20,000 Hz, though this narrows with age.
What is the primary purpose of a low-pass filter in audio processing?
Answer: To allow frequencies below a cutoff point to pass through
A low-pass filter attenuates frequencies above its cutoff point while allowing lower frequencies to pass unaffected.
In a balanced audio connection, what is the third conductor used for?
Answer: Carrying an inverted copy of the audio signal
Balanced connections use two signal conductors carrying opposite-polarity versions of the same signal, which allows noise cancellation at the receiving end.
What does 'latency' refer to in a digital audio system?
Answer: The time delay between input and output of an audio signal
Latency is the measurable delay introduced as audio passes through analog-to-digital conversion, processing, and digital-to-analog conversion.
Which unit is used to measure sound pressure level?
Answer: Decibels (dB SPL)
Sound pressure level is measured in decibels SPL, referenced to the threshold of human hearing at 20 micropascals.