Frequency-warped signal processing techniques are attractive to many wideba
nd speech and audio applications since they have a clear connection to the
frequency resolution of human hearing. A warped version of linear predictiv
e coding (LPC) is studied in this paper, The performance of conventional an
d warped LPC algorithms are compared in a simulated coding system using lis
tening tests and conventional technical measures. The results indicate that
the use of warped techniques is beneficial especially in wideband coding a
nd may result in savings of one bit per sample compared to the conventional
algorithm while retaining the same subjective quality.