Parametric Coding of Piano Signals

Schnabel M, Schubert B, Schuller G. Parametric Coding of Piano Signals. In: AES Convention 133. Audio Engineering Society; 2012. Paper 8768. Available from: https://aes.org/publications/elibrary-page/?id=16510

@inproceedings{Schnabel2012_16510,
  author = {Schnabel, Michael and Schubert, Benjamin and Schuller, Gerald},
  title = {{Parametric Coding of Piano Signals}},
  booktitle = {AES Convention 133},
  note = {Paper 8768},
  year = {2012},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16510}
}

TY  - CPAPER
TI  - Parametric Coding of Piano Signals
AU  - Schnabel, Michael
AU  - Schubert, Benjamin
AU  - Schuller, Gerald
T2  - AES Convention 133
M1  - Paper 8768
PY  - 2012
DA  - 2012/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16510
PB  - Audio Engineering Society
LA  - en
AB  - In this paper an audio coding procedure for piano signals is presented based on a physical model of the piano. Instead of coding the waveform of the signal, the compression is realized by extracting relevant parameters at the encoder. The signal is then re-synthesized at the decoder using the physical model. We describe the development and implementation of algorithms for parameter extraction and the combination of all the components into a coder. A formal listening test was conducted, which shows that we can obtain a high sound quality at a low bit rate, lower than conventional coders. We obtain a bitrate of 11.6 kbps for the proposed piano coder. We use HE-AAC as reference codec at a gross bitrate of 16 kbps. For low and medium chords the proposed piano coder outperforms HE-AAC in terms of subjective quality, while the quality falls below HE-AAC for high chords.
ER  -