Warped linear predictive coding
(Redirected from Warped Linear Predictive Coding)
Warped linear predictive coding (warped LPC or WLPC) is a variant of linear predictive coding in which the spectral representation of the system is modified, for example by replacing the unit delays used in an LPC implementation with first-order all-pass filters. This can have advantages in reducing the bitrate required for a given level of perceived audio quality/intelligibility, especially in wideband audio coding.
History
[edit | edit source]Warped LPC was first proposed in 1980 by Hans Werner Strube.
References
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