Lossless Audio Checker: A Software for the Detection of Upscaling, Upsampling, and Transcoding in Lossless Musical Tracks

Lacroix J, Prime Y, Remy A, Derrien O. Lossless Audio Checker: A Software for the Detection of Upscaling, Upsampling, and Transcoding in Lossless Musical Tracks. In: AES Convention 139. Audio Engineering Society; 2015.pp. 9416:1-10. Available from: https://aes.org/publications/elibrary-page/?id=17972

@inproceedings{Lacroix2015_17972,
  author = {Lacroix, Julien and Prime, Yann and Remy, Alexandre and Derrien, Olivier},
  title = {{Lossless Audio Checker: A Software for the Detection of Upscaling, Upsampling, and Transcoding in Lossless Musical Tracks}},
  booktitle = {AES Convention 139},
  pages = {9416:1-10},
  url = {https://aes.org/publications/elibrary-page/?id=17972},
  year = {2015},
  month = oct,
  publisher = {Audio Engineering Society},
  address = {New York}
}

TY  - CPAPER
TI  - Lossless Audio Checker: A Software for the Detection of Upscaling, Upsampling, and Transcoding in Lossless Musical Tracks
AU  - Lacroix, Julien
AU  - Prime, Yann
AU  - Remy, Alexandre
AU  - Derrien, Olivier
T2  - AES Convention 139
SP  - 1
EP  - 10
M1  - Paper 9416
PY  - 2015
DA  - 2015/10/06
UR  - https://aes.org/publications/elibrary-page/?id=17972
PB  - Audio Engineering Society
CY  - New York
LA  - en
AB  - Internet music dealers currently sell “CD quality” tracks, or even better (“Studio Master”), thanks to lossless audio coding formats (FLAC, ALAC). However, a lossless format does not guarantee that the audio content is what it seems to be. The audio signal may have been upscaled (increasing the resolution), upsampled (increasing the sample rate), or even transcoded from a lossy to a lossless format. In this paper we describe a new software that analyzes lossless audio tracks and detects upsampling, upscaling, and transcoding (only for AAC in this early version). Validation tests over a large music database (with groundtruth available) show that this method is fast and accurate: 100% of success for upscaling and transcoding, 91.3% for upsampling.
ER  -