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On polynomial reduction in the computation of LSP frequencies

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1 Author(s)
J. Rothweiler ; Sanders Associates Inc., Nashua, NH

This work describes a new version of the decimation-in-degree (DID) transformation used by Wu and Chen (see ibid., vol.5, p.105-15, 1997) as part of their procedure for computing line spectrum pair (LSP) coefficients. This new version eliminates all nontrivial multiplications, requires fewer total operations (additions and multiplications), and is performed in place-eliminating a memory buffer

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IEEE Transactions on Speech and Audio Processing  (Volume:7 ,  Issue: 5 )