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对语音信号的短时分析
- 用matlab实现对语音信号的短时分析，包括清音和浊音的判决，基音周期的估计，实验报告。-to realize the analysis of short time of speech signal by Matlab, including the judgement of surd and sonant, the estimate of the pitch and experiment report.
pitchana
- 在语音中提取基音频率的程序。输入为.wav格式的语音文件，输出各帧基音频率。-This is a project of pitch extract of voice. When input is a wave file(.wav), the output will be the fundamental frequency of each frame.
pitchdetect
- 此程序为自相关法进行基音检测的程序，主要应用于语音识别。-program for petch detection using auto-correlation method, mainly for speech recognition
pitch_autoc
- 是语音识别中基音检测程序，可帮助检测一段语音的基因 -is Speech Recognition pitch detection procedures can help detect the gene for voice
jiyinzhouqi_tiqu
- 利用自相关函数估计基音周期，函数jiyinzhouqi，输入参数是分析语音文件名和帧移，帧移在5~10ms-use of the correlation function is estimated Pitch, jiyinzhouqi function, input parameters to analyze voice file names and frame shift, frame shift in the 5-10ms
speech_analysis
- 这时一个语音特征提取的程序源码，除了包含矩阵运算和矢量运算外，还包含了很多语音特征的提取算法，包括：共振峰(formant)提取、基音(pitch)提取、端点(endpoint)检测、线性预测系数(LPCC)、MFCC、LSF、PLCC、EPOCH等。这是我见到的最全的语音分析源码，推荐！-Then a voice feature extraction procedures source, in addition to containing matrix and vector operation
AudioProcessor
- 语音 api 采集，录音，可设定采样率。directsound播放，基音分析，频域波形-voice api collection, recording, sampling rate can be set. Direct3D playback, pitch, frequency-domain waveform
AudioProcessor20060522FFT
- Based ON MS speach API，实时显示波形，FFT变换，IFFT变换波形，支持从文件播放，基音分析，滤波，支持远程控制。欢迎大家改进！-Based ON MS ZAJAC API, real-time waveform, FFT, Transform IFFT waveform support from the document shows, pitch analysis, filtering, support remote control. We welcome the imp
jiyin
- 基音检测,检测出语音的基音频率，采用了小波和经典方法-base tone
3
- 运用低通滤波器，中心削波和自相关技术估计一段男性和女性语音信号的基音周期，画出基音轨迹曲线，给出估计准确率。-The use of low-pass filter, the center clipping and related technologies is estimated from a male and female speech signal pitch period, pitch trajectory drawn curves of estimated accuracy.
Hilbert_Huang-draw
- 基于Hilbert_Huang变换的基音周期提取方法-basic-speech drawing based on Hilbert_Huang
LPC_ACFpitchdetection
- 这是一个简单的语音基音检测方法，通过对语音信号进行滤波、分帧、求自相关函数，可得到浊音的基音周期，从而实现基频检测。-This is a simple voice pitch detection, voice signals by filtering, sub-frame, find the autocorrelation function, voiced the pitch period available to achieve the fundamental frequency testin
pitch
- 利用小波变换消噪，和小波分解，求取语音帧的基音周期值 -wave pitch
jiyinzhouqi
- 利用自相关函数估计基音周期，函数jiyinzhouqi，输入参数是分析语音文件名和帧移，帧移在5~10ms-function jiyinzhouqi is used for estimate the period of fundamental tone.
voice-recognition_matlab-code
- 读入语音文件，并对其做时域、频域的分析，提取相关特征参数。进行线性预测分析，得到LPC谱等线性预测参数，并做了基于预测误差的基音周期估计。-read .wav files，analysing them in time domain，frequency domain and extract some feature parameters related，then do linear prediction analysis ，and get LPC linear prediction paramet
yuyinfenxi
- 利用自相关或平均幅度差提取基音原理，帧长160，帧移80。求能量E、过零率Z和基音周期pitch；采用自相关法或平均幅度差法求取基音周期，基音周期范围（80~400hz）；画出能量、过零率和基音曲线。(Pitch principle is extracted by means of autocorrelation or mean amplitude difference)
音效
- 基音音高估计显示，录一秒钟的声音，然后对声音进行音高估计。(Pitch estimation shows, recording a second sound, and then estimating the sound pitch.)
Labview实现基音周期检测
- 可以设定帧长、帧移，只对幅度超过阈值的帧进行基音周期检测，输出每帧有效帧的基音周期。
piano_notes_research
- 钢琴基音检测程序，1键检测准确率达93%，2键准确率60%(piano keys recognition codes in matlab)
代码
- 基于matlab的男女生辨别系统，根据基音频率进行辨别，在安静环境内，识别度较高(Matlab-based male and female discrimination system, based on the pitch frequency to identify, in a quiet environment, the recognition degree is higher)