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pcm
- 语音编码方案的选取对移动通信系统的通话质量、信道容量等有重要影响。本文讨论了TD-SCDMA系统中AMR语音编码的自适应机制,同时分析了AMR中代数码本线性预测(ACELP)算法及实现过程。该方案可以在一块TMS320C5510上实现。-The selection of voice coding schemes for mobile communication systems the quality of the call, such as channel capacity have had a
yuyinxinghaochulikejian
- 语音信号处理的课件,包含语音信号的短时分析、特征提取、矢量量化,语音编码、合成与识别.-Speech signal processing courseware, including short-time speech signal analysis, feature extraction, vector quantization, speech coding, synthesis and recognition.
matlab
- 语音信号进行分析、处理和设计。用MATLAB做变声器的原理是通过改变输入声音频率,进而改变声音的音色、音调,使输出声音在感官上与原声音不同。变声器是借助对声音音色和音调的双重复合改变,实现输出声音的改变。通过自己发声,共振峰频率的改变是基于重采样实现的-Speech signal analysis, processing and design. MATLAB do voice-changer works by changing the input frequency of the sound,
voise
- 语音信号进行分析、处理和设计。用MATLAB做变声器的原理是通过改变输入声音频率,进而改变声音的音色、音调,使输出声音在感官上与原声音不同。变声器是借助对声音音色和音调的双重复合改变,实现输出声音的改变。通过自己发声,共振峰频率的改变是基于重采样实现的-Speech signal analysis, processing and design. MATLAB do voice-changer works by changing the input frequency of the sound,
LMS-and-RLS-
- Simulation and Comparative Analysis of LMS and RLS Algorithms Using Real Time Speech InputSignal
Speech
- some articles about classification, decoding, thumnailing, acoustic analysis and modelling of recognition of speech signals
DSP
- MATLAB软件平台下,利用函数wavread对语音信号进行采样,记住采样频率和采样点数; 2)画出语音信号的时域波形,对采样后的语音进行fft变换,得到信号的频谱特性;对语音信号分别加入正弦噪声和白噪声,画出加噪信号的时域波形和频谱图; 3)根据对加噪语音信号谱分析结果,确定滤除噪声滤波器的技术指标,设计合适的数字滤波器,并画出滤波器的频域响应; 4)用所设计的滤波器对加噪的信号进行滤波,在同一个窗口画出滤波前后信号的时域图和频谱图,对滤波前后的信号进行对比,分析信号变化; -
1
- 语音信号的延时和混响 1)利用Windows下的录音机或其他软件,录制一段自己的语音信号,时间控制在1s左右,并对录制的信号进行采样; 2)语音信号的频谱分析,画出采样后语音信号的时域波形和频谱图; 3)将信号加入延时和混响,再分析其频谱,并与原始信号频谱进行比较; 4)设计几种特殊类型的滤波器:单回声滤波器,多重回声滤波器,全通结构的混响器,并画出滤波器的频域响应; 5)用自己设计的滤波器对采集的语音信号进行滤波; 6)分析得到信号的频谱,画出滤波后信号的时域波形和频谱
su
- 利用双线性变换法设计一个级联型的椭圆IIR滤波器,对一段含噪语音信号进行滤波去噪处理并根据滤波前后的波形和频谱分析滤波性能。本课程设计仿真平台为MATLAB7.0,开发工具是M语言编程。首先在Windows下用录音机工具录制一段语音信号,并人为加入一单频噪声,然后对信号进行频谱分析以确定所加噪声频率,并设计滤波器进行滤波去噪处理,最后比较滤波前后的波形和频谱并进行分析。-Bilinear transformation method is used to design a cascade elli
speech_basics
- Signal Analysis and feature extraction of a speech signal.Basic manipulation of signal is possible.
Channel-equalization
- CHANNEL EQUALIZATION AND BLIND DECONVOLUTION Blind deconvolution is the process of unravelling two unknown signals that have been convolved. An important application of blind deconvolution is in blind equalization for restoration of a sign
jn877
- 语音信号的采集与处理,数字信号处理课设,能量谱分析计算,小波包分析提取振动信号中的特征频率。- Acquisition and Processing of the speech signal, digital signal processing class-based, Energy spectrum analysis and calculation, Wavelet packet analysis to extract vibration signal characteristic frequ
hielei_v37
- 语音信号的采集与处理,数字信号处理课设,验证可用,数值分析的EULER法。- Acquisition and Processing of the speech signal, digital signal processing class-based, Verification is available, EULER numerical analysis method.