Music Information Retrieval Quiz

Answers and explanations appear as you take the quiz.

1. What are chroma features primarily used to capture in MIR?
   • Harmonic and pitch-class content
   • Recording loudness over time
   • File compression ratio
   • The singer's identity
2. Which transform is most commonly the first step in turning audio into a time-frequency representation?
   • The discrete cosine transform of pixels
   • The Short-Time Fourier Transform
   • A Laplace transform
   • A wavelet packet hash
3. What does an app like Shazam rely on to identify a song?
   • Reading the song's lyrics aloud
   • The user typing the artist name
   • Audio fingerprints matched against a database
   • GPS location of the venue
4. Which annual conference is most associated with MIR research?
   • SIGGRAPH
   • NeurIPS only
   • E3
   • ISMIR
5. What is a key advantage of self-supervised audio models in modern MIR?
   • They learn useful representations from large unlabeled music collections
   • They require no audio input at all
   • They eliminate the need for any computation
   • They only work on classical music
6. Which of these is a classic MIR task?
   • Defragmenting a hard drive
   • Beat tracking and tempo estimation
   • Encrypting network traffic
   • Rendering 3D shadows
7. What kind of musical information are MFCCs commonly used to represent in MIR?
   • The physical location where a recording was made
   • The listener's subscription renewal date
   • Timbre-related characteristics of the sound
   • The legal license assigned to a music file
8. Which metric does the guide name for evaluating beat-tracking performance?
   • BLEU score
   • Intersection over Union for bounding boxes
   • Perplexity
   • F-measure