CMP Audio Recording and Editing 3 — Questions and Answers
Question 1: What does 'latency' mean when recording with a DAW?
- The time delay between a performer's input and the monitored audio output (Correct answer)
- The amount of reverb applied to a signal
- The bit depth of the recorded audio file
- The speed at which a plugin processes automation
Correct answer: The time delay between a performer's input and the monitored audio output
Latency is the delay introduced by audio hardware and software processing, which can make real-time monitoring feel out of sync with performance.
Question 2: What is 'pitch correction' software primarily used for in audio editing?
- Changing the tempo of a recording without altering pitch
- Adjusting out-of-tune notes in a recorded performance to the correct pitch (Correct answer)
- Adding harmonic distortion to a vocal track
- Reducing background noise in a recording
Correct answer: Adjusting out-of-tune notes in a recorded performance to the correct pitch
Pitch correction tools like Auto-Tune or Melodyne analyze recorded audio and shift individual notes to align with the intended pitches of a scale or melody.
Question 3: In audio editing, what is 'time-stretching'?
- Extending the dynamic range of an audio file
- Changing the duration of an audio region without altering its pitch (Correct answer)
- Increasing the bit depth of a recording
- Adding a delay effect synchronized to tempo
Correct answer: Changing the duration of an audio region without altering its pitch
Time-stretching algorithms modify the length of an audio clip — making it faster or slower — while keeping the original pitch intact.
Question 4: What is the role of a 'bus' in a DAW session?
- A hardware MIDI interface
- A routing channel that combines multiple tracks for shared processing (Correct answer)
- A type of audio codec used for file export
- A plugin that analyses bus frequencies
Correct answer: A routing channel that combines multiple tracks for shared processing
A bus (or aux send) allows multiple tracks to be routed to a single channel, where shared processing like reverb, compression, or EQ can be applied uniformly.
Question 5: Which file format is lossless and most commonly used for professional audio archiving?
- MP3
- AAC
- WAV (Correct answer)
- OGG Vorbis
Correct answer: WAV
WAV (Waveform Audio File Format) is an uncompressed, lossless format that preserves all original audio data, making it the standard for professional recording and archiving.
Question 6: What does 'quantization' do to a MIDI or audio performance in a DAW?
- Reduces the bit depth of audio regions
- Snaps note timings to the nearest rhythmic grid position (Correct answer)
- Transposes notes to a specified key
- Applies a noise gate to MIDI velocity
Correct answer: Snaps note timings to the nearest rhythmic grid position
Quantization corrects timing imperfections by moving notes so they align precisely with a selected rhythmic grid (e.g., 1/16th notes).
Question 7: What is the function of a high-pass filter (HPF) when applied to a recorded audio track?
- Boosts all frequencies above a set point
- Removes frequencies below a set cutoff point, allowing high frequencies to pass through (Correct answer)
- Adds harmonic distortion above 5 kHz
- Increases the gain of the mid-range frequencies
Correct answer: Removes frequencies below a set cutoff point, allowing high frequencies to pass through
A high-pass filter attenuates low-frequency content below its cutoff, useful for removing rumble, handling noise, and low-end mud from non-bass instruments.
CMP Audio Recording and Editing 3
What does 'latency' mean when recording with a DAW?