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Milestone-Proposal:Line spectrum pair (LSP), an essential technology for high-compression speech coding, 1975
Milestone Buildings Exist No. New building has been built on the original site.
Milestone Plaque Mounting Details The plaque will be placed near the reception area in the ground floor entrance hall. All visitors have free access to this hall.
Milestone Present Site Owner NTT (Nippon Telegraph and Telephone) corporation
Milestone Site Access Details NTT’s receptionists are always near the plaque, and the plaque will be displayed in a transparent hard case.
Milestone Site Description Initial invention, follow up investigations and developments have been carried out at this site.
Milestone Site Owner Approval Yes  +
Milestone proposal submitted true  +
Proposed Milestone IEEE Section IEEE Tokyo Section, Japan  +
Proposed Milestone Location NTT Musashino R&D center  9-11, Midori-cho 3-Chome Musashino-Shi, Tokyo 180-8585 Japan
Proposed Milestone Name Line Spectrum Pair (LSP) for high-compression speech coding, 1975  +
Proposed Milestone Plaque Citation Line Spectrum Pair, invented at NTT in 197 Line Spectrum Pair, invented at NTT in 1975, is an important technology for speech synthesis and coding. A speech synthesizer chip was designed based on Line Spectrum Pair in 1980. In the 1990s, this technology was adopted in almost all international speech coding standards as an essential component and has contributed to the enhancement of digital speech communication over mobile channels and the Internet worldwide. obile channels and the Internet worldwide.
Proposed Milestone Year 1975  +
Modification dateThis property is a special property in this wiki. 8 May 2014 16:42:48  +
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