Acoustical-signal processing apparatus, acoustical-signal...

Details Acoustical-signal processing apparatus, acoustical-signal... Acoustical-signal processing apparatus, acoustical-signal...

2011-01-11

2011-01-11

Hudspeth, David R (Department: 2626)

Data processing: speech signal processing, linguistics, language

Audio signal time compression or expansion

C381S022000

Reexamination Certificate

active

07870003

ABSTRACT:
An acoustical-signal processing apparatus includes a feature extracting unit that extracts feature data common to each channel signal which forms a multichannel acoustical signal, based on a composite similarity obtained by combining similarities calculated from each channel signal; and a time-base companding unit that executes time compression and time expansion of the multichannel acoustical signal based on the extracted feature data.

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Time-Scale Modification Algorithm for Speech by use of Pointer Interval Control Overlap and Add (PICOLA) and It's Evaluation, Morita et al. (1986) pp. 149-150 (with machine generated English translation).
Luca Armani, Maurizio Omologo, Weighted Autocorrelation-Based F0 Estimation for Distant-Talking Interaction With a Distributed Microphone Network, ITC-irst (Centra per la Ricerca Scientifica e Tecnologica) I-38050 Povo-Trento (Italy), IEEE 2004 pp. 1-113 to 1-116.

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