| 摘要 |
PCT No. PCT/FI94/00054 Sec. 371 Date Dec. 2, 1994 Sec. 102(e) Date Dec. 2, 1994 PCT Filed Feb. 10, 1994 PCT Pub. No. WO94/18669 PCT Pub. Date Aug. 18, 1994A method of converting speech, in which reflection coefficients are calculated from a speech signal of a speaker. From these coefficients, characteristics of cross-sectional areas of cylinder portions of a lossless tube modelling the speaker's vocal tract are calculated. Sounds are identified from those characteristics of the speaker and provided with respective identifiers. Subsequently, differences between the stored characteristics representing at least one sound and respective characteristics representing the same at least one sound are calculated, a second speaker's speaker-specific characteristics modelling that speaker's vocal tract for the same at least one sound are searched for in a memory on the basis of the identifier of the respective identified sound, a sum is formed by summing the differences and the second speaker's speaker-specific characteristics modelling that second speaker's vocal tract for the respective same sound, new reflection coefficients are calculated (614) from that sum, and a new speech signal is produced from the new reflection coefficients. |
