Making Audio Sound Better One Square Wave at a Time (Or How an Algorithm Called “Undo” Fixes Audio)

Claesson L. Making Audio Sound Better One Square Wave at a Time (Or How an Algorithm Called “Undo” Fixes Audio). In: AES Convention 137. Audio Engineering Society; 2014.pp. 9202:1-. Available from: https://aes.org/publications/elibrary-page/?id=17525

@inproceedings{Claesson2014_17525,
  author = {Claesson, Leif},
  title = {{Making Audio Sound Better One Square Wave at a Time (Or How an Algorithm Called “Undo” Fixes Audio)}},
  booktitle = {AES Convention 137},
  pages = {9202:1-},
  year = {2014},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=17525}
}

TY  - CPAPER
TI  - Making Audio Sound Better One Square Wave at a Time (Or How an Algorithm Called “Undo” Fixes Audio)
AU  - Claesson, Leif
T2  - AES Convention 137
SP  - 1
M1  - Paper 9202
PY  - 2014
DA  - 2014/10/06
UR  - https://aes.org/publications/elibrary-page/?id=17525
PB  - Audio Engineering Society
LA  - en
AB  - Audio mastering engineers have felt increasing pressure over the years to master recordings at ever increasing loudness levels as compared to other contemporary recordings, by way of dynamic compression, peak limiting, and hard clipping. This pursuit of loudness adds distortion, and reduces fidelity. When radio stations play the compromised audio through their FM processing chains, this confluence of degradation causes serious audio quality issues on air. This paper shall examine what the music endures when broadcast on FM, and how that led to the invention of the “undo” algorithm, which repairs damage caused by these mastering techniques by adaptively de-clipping and de-compressing the mastered recordings.
ER  -