Processing of multi-channel signals

Details Processing of multi-channel signals Processing of multi-channel signals

2004-03-15

2008-03-11

Dorvil, Richemond (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

Reexamination Certificate

active

07343281

ABSTRACT:
A method of generating a monaural signal (S) includes a combination of at least two input audio channels (L, R). Corresponding frequency components from respective frequency spectrum representations for each audio channel (L(k), R(k)) are summed to provide a set of summed frequency components (S(k)) for each sequential segment. For each frequency band (i) of each of sequential segment, a correction factor (m(i)) is calculated as function of a sum of energy of the frequency components of the summed signal in the band(∑k∈i⁢S⁡(k)2)and a sum of the energy of the frequency components of the input audio channels in the band(∑k∈i⁢{L⁡(k)2+R⁡(k)2}).Each summed frequency component is corrected as a function of the correction factor (m(i)) for the frequency band of the component.

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