Recovery of Missing Signals Utilizing GHA(Generalized Harmonic Analysis)-Applied Interpolation

Ifukube T, Miura T, Muraoka T. Recovery of Missing Signals Utilizing GHA(Generalized Harmonic Analysis)-Applied Interpolation. In: AES Convention 124. Audio Engineering Society; 2008. Paper 7400. Available from: https://aes.org/publications/elibrary-page/?id=14530

@inproceedings{Ifukube2008_14530,
  author = {Ifukube, Tohru and Miura, Takahiro and Muraoka, Teruo},
  title = {{Recovery of Missing Signals Utilizing GHA(Generalized Harmonic Analysis)-Applied Interpolation}},
  booktitle = {AES Convention 124},
  note = {Paper 7400},
  year = {2008},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14530}
}

TY  - CPAPER
TI  - Recovery of Missing Signals Utilizing GHA(Generalized Harmonic Analysis)-Applied Interpolation
AU  - Ifukube, Tohru
AU  - Miura, Takahiro
AU  - Muraoka, Teruo
T2  - AES Convention 124
M1  - Paper 7400
PY  - 2008
DA  - 2008/05/06
UR  - https://aes.org/publications/elibrary-page/?id=14530
PB  - Audio Engineering Society
LA  - en
AB  - For archiving damaged historical recordings, recoveries of missing portions are essentially important as well as noise reduction. Conventional counter-measures with functional interpolation are not effective when the missing interval is long. Inharmonic frequency analysis GHA is profitable for this purpose, because the recomposed signal with frequency components obtained by GHA exhibits very long period. Length of the period is given as an inverse number of least common multiple of rendered inharmonic frequency?fs periods. This feature is very advantageous for signal recovery, and the authors devised an extrapolation simply extending a re-synthesizing waveform obtained through GHA analysis/re-synthesis. The authors got satisfactory results a whole by applying interpolation combined with forward and backward extrapolations based upon abovementioned method. Results of recovery highly depend upon characters of signals (such as music) and the author did not find definite rules for setting GHA?fs analyzing conditions. Those are given through auditory examination this time.
ER  -