A Low Latency Implementation of a Non Uniform Partitioned Overlap and Save Algorithm for Real Time Applications

Primavera A, Cecchi S, Romoli L, Peretti P, Piazza F. A Low Latency Implementation of a Non Uniform Partitioned Overlap and Save Algorithm for Real Time Applications. In: AES Convention 131. Audio Engineering Society; 2011. Paper 8521. Available from: https://aes.org/publications/elibrary-page/?id=16047

@inproceedings{Primavera2011_16047,
  author = {Primavera, Andrea and Cecchi, Stefania and Romoli, Laura and Peretti, Paolo and Piazza, Francesco},
  title = {{A Low Latency Implementation of a Non Uniform Partitioned Overlap and Save Algorithm for Real Time Applications}},
  booktitle = {AES Convention 131},
  note = {Paper 8521},
  year = {2011},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16047}
}

TY  - CPAPER
TI  - A Low Latency Implementation of a Non Uniform Partitioned Overlap and Save Algorithm for Real Time Applications
AU  - Primavera, Andrea
AU  - Cecchi, Stefania
AU  - Romoli, Laura
AU  - Peretti, Paolo
AU  - Piazza, Francesco
T2  - AES Convention 131
M1  - Paper 8521
PY  - 2011
DA  - 2011/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16047
PB  - Audio Engineering Society
LA  - en
AB  - FIR convolution is a widely used operation in digital signal processing field, especially for filtering operations in real time scenarios. In this context, low computationally demanding techniques for calculating convolutions with low input/output latency become essential, considering that the real time requirements are strictly related to the impulse response length. In this paper, a multithreading real time implementation of a Non Uniform Partitioned Overlap and Save algorithm is proposed with the aim of lowering the workload required in applications like reverberation, also exploiting the human ear sensitivity. Several results are reported in order to show the effectiveness of the proposed approach in terms of computational cost, taking into consideration different impulse responses and also introducing comparisons with existing techniques of the state of the art.
ER  -