{"title":"A 400-BPS Vocoder using Line Spectral Frequencies and Frame Repeat Coding","authors":"J. Kowalski, Robert W. Schoepflin","doi":"10.1109/MILCOM.1986.4805791","DOIUrl":null,"url":null,"abstract":"A 400-bps vocoder utilizing frame repeat vector quantization is described that is designed to be used with fixed data rate systems. It combines several improvements over existing 400-bps systems. Line spectrum frequency parameters are vector quantized using a perceptually meaningful distortion metric. Frames to be repeated are determined from a buffer's length of data, which determines the coding delay. Excitation parameters are trellis coded using a variable lookahead approach to minimize throughput delay.","PeriodicalId":126184,"journal":{"name":"MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's","volume":"33 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"MILCOM 1986 - IEEE Military Communications Conference: Communications-Computers: Teamed for the 90's","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MILCOM.1986.4805791","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A 400-bps vocoder utilizing frame repeat vector quantization is described that is designed to be used with fixed data rate systems. It combines several improvements over existing 400-bps systems. Line spectrum frequency parameters are vector quantized using a perceptually meaningful distortion metric. Frames to be repeated are determined from a buffer's length of data, which determines the coding delay. Excitation parameters are trellis coded using a variable lookahead approach to minimize throughput delay.
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