Adaptive Digital Oscillator for Virtual Acoustic Feedback

Gabrielli L, Giobbi M, Squartini S, Välimäki V. Adaptive Digital Oscillator for Virtual Acoustic Feedback. In: AES Convention 136. Audio Engineering Society; 2014. Paper 9066. Available from: https://aes.org/publications/elibrary-page/?id=17213

@inproceedings{Gabrielli2014_17213,
  author = {Gabrielli, Leonardo and Giobbi, Marco and Squartini, Stefano and Välimäki, Vesa},
  title = {{Adaptive Digital Oscillator for Virtual Acoustic Feedback}},
  booktitle = {AES Convention 136},
  note = {Paper 9066},
  year = {2014},
  month = apr,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=17213}
}

TY  - CPAPER
TI  - Adaptive Digital Oscillator for Virtual Acoustic Feedback
AU  - Gabrielli, Leonardo
AU  - Giobbi, Marco
AU  - Squartini, Stefano
AU  - Välimäki, Vesa
T2  - AES Convention 136
M1  - Paper 9066
PY  - 2014
DA  - 2014/04/06
UR  - https://aes.org/publications/elibrary-page/?id=17213
PB  - Audio Engineering Society
LA  - en
AB  - In the domain of Virtual Acoustics research, the emulation of acoustic feedback, such as the so-called guitar howling, has been scarcely addressed. This paper takes pace from this peculiar effect to introduce a computational technique aimed at its emulation and extension to possible new scenarios of Virtual Acoustics. A nonlinear digital oscillator for real-time operation with good stability properties and low computational cost is employed to emulate guitar feedback (or guitar howling). The oscillator frequency is tuned according to a pitch detection system that adaptively tracks pitch changes in real-time. A real-time implementation of the algorithm in the Puredata environment has been developed to provide guitar howling emulation.
ER  -