The phase-only version of the LPC residual in speech coding
Evangelos Milios, Alan V. Oppenheim · 2005
Recent work has demonstrated the perceptual importance of the long-time phase of speech. In this paper, the possibility of using the long-time phase of the LPC residual signal in speech synthesis is investigated. The perceptual importance of the various parts of the long-time spectrum of the residual is also suggested.