| 摘要 |
A system, wireless device ( 102 ) and method improve speaker intelligibility in a multi-party call by receiving a plurality of individual voice signals, determining a pitch contour for each individual voice signal, determining that the pitch contours for at least two of the individual voice signals are within a predetermined range relative to each other, and shifting the pitch of at least one voice signal a predetermined amount for the duration of the call. The pitch of the individual voice is shifted one to approximately five semitones. The method is performed at a central control station ( 110 ) prior to summation of the signals, or at an individual receiving unit ( 204 ) when three or more wireless devices ( 102 ) are communicating without the use of a central control station ( 110 ).
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