頁籤選單縮合
題 名 | A Windowed Search Method for the Pitch Predictor in Celp Coder |
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作 者 | 郭志忠; 潘榮川; 簡福榮; 王小川; | 書刊名 | Journal of Information Science and Engineering |
卷 期 | 8:3 1992.09[民81.09] |
頁 次 | 頁415-430 |
分類號 | 310.15 |
關鍵詞 | CELP coder; Pitch predictor; Windowed search; Smoothed pitch contour; Speech coding; |
語 文 | 英文(English) |
英文摘要 | In analysis-by-synthesis coders, the delay parameters of pitch predictors in consecutive subframes can be encoded efficiently and decoded robustly if there is a smooth pitch contour. In this paper we present a new method called the windowed search (WS) method to obtain a smooth pitch contour. Three types of WS algorithms are proposed and implemented in CELP coders for experiments. The results show that not only a smooth contour but also less computation and slightly better quality as measured by subjective tests are found by using the WS method as compared to other smoothing methods. |
本系統中英文摘要資訊取自各篇刊載內容。