Filling the Gaps Between the Grains of Down Pitching PSOLA or "Getting the Frog Out of PSOLA"

von Dem Knesebeck A, Zölzer U. Filling the Gaps Between the Grains of Down Pitching PSOLA or "Getting the Frog Out of PSOLA". In: AES Convention 131. Audio Engineering Society; 2011. Paper 8504. Available from: https://aes.org/publications/elibrary-page/?id=16030

@inproceedings{vonDemKnesebeck2011_16030,
  author = {von Dem Knesebeck, Adrian and Zölzer, Udo},
  title = {{Filling the Gaps Between the Grains of Down Pitching PSOLA or "Getting the Frog Out of PSOLA"}},
  booktitle = {AES Convention 131},
  note = {Paper 8504},
  year = {2011},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=16030}
}

TY  - CPAPER
TI  - Filling the Gaps Between the Grains of Down Pitching PSOLA or "Getting the Frog Out of PSOLA"
AU  - von Dem Knesebeck, Adrian
AU  - Zölzer, Udo
T2  - AES Convention 131
M1  - Paper 8504
PY  - 2011
DA  - 2011/10/06
UR  - https://aes.org/publications/elibrary-page/?id=16030
PB  - Audio Engineering Society
LA  - en
AB  - An improvement regarding the down pitching quality of the Pitch Synchronous Overlap Add (PSOLA) technique is presented. The behavior of the common PSOLA algorithm when decreasing the input signal's pitch by one octave or even less is analyzed. A new grain processing algorithm is proposed, which modifies the synthesis grains depending on the synthesis period. The time domain and frequency domain properties of the proposed algorithm are discussed. The presented algorithm improves the perceived quality of the PSOLA algorithm when down-pitching while preserving the low complexity.
ER  -