Code excited linear prediction coding celp 碼激勵(lì)線性預(yù)測(cè)編碼
Linear prediction coding lpc 線性預(yù)測(cè)編碼
The paper discussed the bandpass filters analysis method and the technology of linear prediction code , then reduced the lpcc and the mfcc parameters 本文還介紹了語(yǔ)音信號(hào)分析方法中的濾波器組分析方法和線性預(yù)測(cè)編碼技術(shù),并推導(dǎo)了lpcc參數(shù)和mfcc參數(shù)。
Linear prediction code and mel - scale cepstrum coefficients are effective method in speech feature extraction and important in speech signal processing 線性預(yù)測(cè)分析和mel倒譜分析是對(duì)語(yǔ)音信號(hào)特征提取比較有效的兩種方法,在語(yǔ)音信號(hào)處理中有著重要的應(yīng)用。
In section two , we introduce some of the main coding theories that was in the g . 729 , including the digital model of the production of speech signal , the linear prediction coding , vector quantization , lbg arithmetic and perceptual weighted filtering 第二章著重討論了g 729語(yǔ)音壓縮協(xié)議中所涉及到的語(yǔ)音編碼基礎(chǔ)理論。主要包括語(yǔ)音信號(hào)產(chǎn)生的數(shù)字模型、語(yǔ)音信號(hào)的線性預(yù)測(cè)分析、矢量量化及其lbg算法和感知加權(quán)濾波器。
These are correlation characteristic parameter , fourier spectrum characteristic parameter , power spectrum characteristic parameter , time domain amplitude characteristic parameter , linear prediction coding coefficients , instantaneous characteristic parameter , absorb and decay coefficient , velocity characteristic parameter and wavelet packet transform characteristic parameter . the parameters contain the surface relatively wide , the prediction which is suitable for the goal of many kinds of seism needs 分別為:自相關(guān)特征參數(shù)、付立葉譜特征參數(shù)、功率譜特征參數(shù)、時(shí)域振幅特征參數(shù)、線性預(yù)測(cè)編碼系數(shù)、瞬時(shí)特征參數(shù)、吸收衰減系數(shù)、速度類特征參數(shù)和小波包變換特征參數(shù),參數(shù)涵蓋面較寬,適用于多種地質(zhì)目標(biāo)的預(yù)測(cè)需要。