Prueba de identificación de la canción de portada

Las respuestas y explicaciones aparecen a medida que realiza el cuestionario.

1. Why can a recording fingerprint designed for near-identical audio fail on a cover performance?
   • A cover may change tempo, key, arrangement, and instrumentation while preserving the composition
   • It is guaranteed to match any recording with the same title
   • Every cover uses the same waveform samples
   • It can identify a song only from album artwork
2. ¿Qué representa una característica croma (HPCP)?
   • El nivel exacto de decibelios de cada segundo.
   • Las 12 clases de tonos con octavas colapsaron juntas
   • Los nombres de los músicos intérpretes.
   • The file’s compression format
3. ¿Cómo manejan los sistemas una portada grabada en un tono musical diferente?
   • Se dan por vencidos y no informan coincidencia.
   • Convierten el audio a texto.
   • Giran cíclicamente el vector croma de 12 bins para probar todas las transposiciones
   • Aceleran la grabación al 2x
4. ¿Qué técnica estira una secuencia de audio para alinearla con otra que tiene un tempo diferente?
   • Compresión JPEG
   • barajado aleatorio
   • Interpolación de píxeles
   • Deformación dinámica del tiempo (DTW)
5. How can a learned cover-song model support retrieval across tracks of different lengths?
   • Map each track to a fixed-dimensional representation and compare representations
   • Require every version to have the same waveform length
   • Search only by file name
   • Compare the full waveform sample-by-sample without alignment
6. Which training loss does ByteCover use to compact same-composition versions in its embedding space?
   • A reconstruction loss only
   • Triplet loss, alongside a classification loss
   • A binary cross-entropy loss between raw waveforms
   • A next-token prediction loss
7. How can chroma features help compare some cover recordings?
   • They make every instrument produce identical features
   • They remove all effects of arrangement and production
   • They summarize pitch-class structure and reduce sensitivity to octave and some timbral changes
   • They prove two tracks are the same composition
8. What information can a single global chroma summary lose when comparing cover songs?
   • The fact that pitch classes repeat across octaves
   • The recording’s file extension
   • Whether the waveform has a left and right channel
   • The temporal order of pitch-class events through the track