Music & Audio Advice Studio Monitor Calibration 2 — Questions and Answers
Question 1: What is the primary purpose of acoustic treatment before calibrating studio monitors?
- To control room reflections and modes so measurements reflect true monitor output (Correct answer)
- To make the monitors physically louder
- To change the monitor's frequency response curve internally
- To reduce the need for a measurement microphone
Correct answer: To control room reflections and modes so measurements reflect true monitor output
Acoustic treatment tames reflections and room modes so calibration measures the room-plus-monitor response accurately.
Question 2: Which measurement microphone type is standard for room calibration?
- A dynamic vocal microphone
- An omnidirectional measurement microphone with a calibration file (Correct answer)
- A ribbon microphone
- A shotgun microphone
Correct answer: An omnidirectional measurement microphone with a calibration file
Omnidirectional measurement mics with calibration files capture flat, uniform response across the room.
Question 3: At what listening level (SPL) are monitors commonly calibrated for film/cinema mixing per industry standard?
- 65 dB SPL
- 85 dB SPL per channel (pink noise) (Correct answer)
- 100 dB SPL
- 55 dB SPL
Correct answer: 85 dB SPL per channel (pink noise)
Cinema calibration standards target 85 dB SPL per channel using pink noise.
Question 4: What does a room mode cause at specific frequencies in a listening room?
- A uniform boost across all frequencies
- Peaks and nulls (standing waves) at certain low frequencies (Correct answer)
- Increased high-frequency clarity
- Complete elimination of bass
Correct answer: Peaks and nulls (standing waves) at certain low frequencies
Room modes create standing waves that produce peaks and nulls at particular low frequencies depending on room dimensions.
Question 5: Why should you avoid placing a monitor directly in the corner of a room during calibration?
- It improves stereo imaging
- It causes excessive bass buildup (boundary reinforcement) (Correct answer)
- It increases treble harshness only
- It has no measurable effect
Correct answer: It causes excessive bass buildup (boundary reinforcement)
Corner placement boosts low frequencies through boundary reinforcement, skewing the response.
Question 6: What is the equilateral triangle rule in monitor setup?
- Monitors and listener form a triangle with equal distances between all three points (Correct answer)
- Monitors are placed in a straight line with the listener
- The listener sits twice as far as the monitor spacing
- Monitors face away from the listener
Correct answer: Monitors and listener form a triangle with equal distances between all three points
The listener and the two monitors should form an equilateral triangle for accurate stereo imaging.
Question 7: What does pink noise provide that white noise does not, for calibration purposes?
- Equal energy per octave, matching how we perceive frequency balance (Correct answer)
- More high-frequency energy
- A single test tone
- Silence between bursts
Correct answer: Equal energy per octave, matching how we perceive frequency balance
Pink noise has equal energy per octave, aligning with logarithmic human hearing for level calibration.
What is the primary purpose of acoustic treatment before calibrating studio monitors?