Intensive Noise Reduction utilizing Inharmonic Frequency Analysis of GHA

Kanda Y, Muraoka T, Ohta T, Takamizawa R. Intensive Noise Reduction utilizing Inharmonic Frequency Analysis of GHA. In: AES Convention 120. Audio Engineering Society; 2006. Paper 6725. Available from: https://aes.org/publications/elibrary-page/?id=13529

@inproceedings{Kanda2006_13529,
  author = {Kanda, Yoshihiro and Muraoka, Teruo and Ohta, Takumi and Takamizawa, Ryuji},
  title = {{Intensive Noise Reduction utilizing Inharmonic Frequency Analysis of GHA}},
  booktitle = {AES Convention 120},
  note = {Paper 6725},
  year = {2006},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=13529}
}

TY  - CPAPER
TI  - Intensive Noise Reduction utilizing Inharmonic Frequency Analysis of GHA
AU  - Kanda, Yoshihiro
AU  - Muraoka, Teruo
AU  - Ohta, Takumi
AU  - Takamizawa, Ryuji
T2  - AES Convention 120
M1  - Paper 6725
PY  - 2006
DA  - 2006/05/06
UR  - https://aes.org/publications/elibrary-page/?id=13529
PB  - Audio Engineering Society
LA  - en
AB  - Removals of noise in SP record reproduction were attempted utilizing GHA (Generalized Harmonic Analysis) as Inharmonic frequency analysis. Spectrum subtraction is most common among conventional noise reduction techniques, however it has a side effect of musical noise generation. It is caused by inaccurate frequency resolution inherent to conventional Harmonic frequency analysis. One of inharmonic frequency analysis of GHA is equipped with excellent frequency resolution, and has been put in practical use recently. The authors applied GHA for noise reduction and obtained better results than those by conventional Spectrum subtraction. However there still remained musical noise problems and its major reason is spectral in-coincidence between pre-sampled reference noise and actually remained residual noise. The authors tried several countermeasures such as pre-spectral shaping of object signal and spectral similarity calculation of residual noise etc. Through combining countermeasures, the authors achieved satisfactory noise reduction.
ER  -