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matlab Record 利用matlab编写的录音函数
- 利用matlab编写的录音函数，并画出录入声音波形。-Use of matlab recording function, and draw the recorded sound waveform
waveform_generator
- waveform generator techniques
soundchange
- 对原始语音进行上采样和下采样，分析对比他们的时域图和频谱图。最后对比原始语音、75HZ激励、150HZ激励以及噪声激励下的效果-SOME SIMPLE MANIPULATIONS OF SOUND USING DIGITAL SIGNAL PROCESSING The original sound and its spectrogram Downsampling the waveform downsampling Upsampling the waveform Li
matlab_audio
- 基于matlab GUI的音频信息处理系统，具有声音录制、播放、暂停、渐弱、渐强、倒放、快放、回音、合成、滤波、变换声道、绘制波形曲线等功能-Matlab GUI-based audio information processing system, with sound recording, playback, pause, fade, gradually strong, rewind, fast release, echo, synthesis, filtering, channel chan
boxing
- 基于音频波形发生器，可以输出正弦波，方波等波形。-The waveform generator of this paper is a development platform based on MATLAB, using the sound card output, and then connected to the op amp circuit with an oscilloscope, so that observed on an oscilloscope. After repeated t
GUI
- 1）选择一个语音信号作为分析对象，或录制一段语音信号； 2）对语音信号进行采样，画出采样前后语音信号的时域波形和频谱图； 3）利用MATLAB中的随机函数产生噪声加入到语音信号中，使语音信号被污染，然后进行频谱分析； 4）设计用于处理该语音信号的数字滤波器，给出滤波器的性能指标，画出滤波器的频率响应； 5）对被噪声污染的语音信号进行滤波，画出滤波前后信号的时域波形和频谱，并对滤波前后的信号进行比较和分析； 6）回放各步骤的语音信号，给出相应处理程序及运行结果分析。-1) Select a voi
info_record_fft
- MATLAB调用声卡录音并画出信号波形以及频谱，可用于语音录制、分析信号特性-MATLAB calls sound recording and draw waveform and spectrum can be used for voice recording, analysis of signal characteristics