Abstract
A perceptual weighting device for producing a perceptually weighted signal in response to a wideband signal comprises a signal pre-emphasis filter a synthesis filter calculator and a perceptual weighting filter. The signal pre-emphasis filter enhances high frequency content of the wideband signal to thereby produce a pre-emphasised signal. The signal pre-emphasis filter has a transfer function of the form P(z) = 1 - ìz-1 wherein ì is a pre-emphasis factor having value between 0 and 1. The synthesis filter calculator is responsive to the pre-emphasised signal for producing synthesis filter coefficients. Finally the perceptual weighting filter has a transfer function with a fixed denominator of the form W(z) = A (z/ ã1) / (1- ã2z-1) where 0 < ã2 < ã1 d1 and ã2 and ã1 are weighting control values.
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| 5G,4G,3G,2G | 06/01/2010 | ISLD-201001-018 | VOICEAGE CORPORATION |
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Technologies
Signal Processing
Product
Base Station (eNB/gNB)User Equipment (UE/Terminal)
Use Cases
Network OptimizationWireless communication
Services
Error correction/detection
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