Improved Psychoacoustic Model for Efficient Perceptual Audio Codecs

Disch S, van de Par S, Niedermeier A, Burdiel Pérez E, Berasategui Ceberio A, Edler B. Improved Psychoacoustic Model for Efficient Perceptual Audio Codecs. In: AES Convention 145. Audio Engineering Society; 2018. Paper 10029. Available from: https://aes.org/publications/elibrary-page/?id=19755

@inproceedings{Disch2018_19755,
  author = {Disch, Sascha and van de Par, Steven and Niedermeier, Andreas and Burdiel Pérez, Elena and Berasategui Ceberio, Ane and Edler, Bernd},
  title = {{Improved Psychoacoustic Model for Efficient Perceptual Audio Codecs}},
  booktitle = {AES Convention 145},
  note = {Paper 10029},
  year = {2018},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19755}
}

TY  - CPAPER
TI  - Improved Psychoacoustic Model for Efficient Perceptual Audio Codecs
AU  - Disch, Sascha
AU  - van de Par, Steven
AU  - Niedermeier, Andreas
AU  - Burdiel Pérez, Elena
AU  - Berasategui Ceberio, Ane
AU  - Edler, Bernd
T2  - AES Convention 145
M1  - Paper 10029
PY  - 2018
DA  - 2018/10/06
UR  - https://aes.org/publications/elibrary-page/?id=19755
PB  - Audio Engineering Society
LA  - en
AB  - Since early perceptual audio coders such as mp3, the underlying psychoacoustic model that controls the encoding process has not undergone many dramatic changes. Meanwhile, modern audio coders have been equipped with semi-parametric or parametric coding tools such as audio bandwidth extension. Thereby, the initial psychoacoustic model used in a perceptual coder, just considering added quantization noise, became partly unsuitable. We propose the use of an improved psychoacoustic excitation model based on an existing model proposed by Dau et al. in 1997. This modulation-based model is essentially independent from the input waveform by calculating an internal auditory representation. Using the example of MPEG-H 3D Audio and its semi-parametric Intelligent Gap Filling (IGF) tool, we demonstrate that we can successfully control the IGF parameter selection process to achieve overall improved perceptual quality.
ER  -