| 摘要 |
In a non-linear processing system, the main non-linear processing and filtering is performed with low precision in a separate branch. A low-precision version ( 22 ) of the input signal ( 14 ) is created in an extractor ( 20 ), which is processed non-linearly in a low-precision non-linear processing unit ( 11 ) under constraints put on the non-linear processing. Quantisation errors or other artefacts, created by the use of low precision signals are finally removed by a precision restoring processing in a precision restoring unit ( 26 ) using the full-precision signal ( 14 ).
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