| 摘要 |
<p>A linear Prediction coding device having an input for receiving first words obtained by sampling an inputted speech signal and a first unit provided for determining second words representing an estimation of said inputted first words, a second unit having a first, respectively a second input for receiving said first respectively said second word and provided for determining a coding error word from said inputted first and second word, a weighting filter which is closed looped with said first unit and which has a transfer function A(z)/H(z/η) wherein A(z) = (I) and H(z/η) = 1 + ν (z/η)-1, ν being the first Parcor coefficient, a¿i? a prediction coefficient obtained from an LPC analysis and an empirical value 0<η«1.</p> |
