| 摘要 |
The invention concerns a method ( 400 ) and system ( 100 ) for bandwidth extension of voice for improving the quality of voice in a communication system. The method can include the steps of receiving ( 412 ) an unknown voice signal ( 105 ), identifying ( 414 ) the voice bandwidth ( 625 ) of the received unknown voice signal and establishing ( 418 ) a region of support ( 636 ) in view of the spectral content of the received voice signal. The method can further include the step of selecting ( 428 ) a combination of mapping databases ( 210, 212, 214 ) from a plurality of mapping databases. Each mapping database can be associated with a predetermined bandwidth extension range for extending the voice bandwidth.
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