deviceWriter = audioDeviceWriter(___,Name,Value) sets each property Name to the specified Value. Unspecified properties have default values. Example: deviceWriter = audioDeviceWriter(48000,'BitDepth','8-bit integer') creates a System object, deviceWriter, that operates at a 48 kHz sample rate...
audioDeviceReader,audioDeviceWriter,audioPlayerRecorder,dsp.AudioFileReader和dsp.AudioFileWriter器是为流式传输多通道音频而设计的, 它们提供了必要的参数, 以便您可以在吞吐量和延迟之间进行权衡。 有关实时处理的信息以及如何优化算法的提示, 请参阅音频 iseo: 缓冲、延迟和吞吐量. 本教程介绍如何在 matlab 中实现...
利用audiodevicereader函数读取到的音频数据,可以进行实时处理或分析。例如,可以应用滤波器对音频数据进行实时滤波。下面是一个示例代码,演示如何对音频数据应用低通滤波器: matlab deviceReader = audiodevicereader; deviceWriter = audioDeviceWriter(deviceReader.SampleRate); [sos, g] = butter(6, 5000/(deviceRead...
deviceWriter = audioDeviceWriter("SampleRate",fileReader.SampleRate); while ~isDone(fileReader)<br> % 此处可以添加代码对原始音频信号实时处理 originalSignal = fileReader(); % 控制结束 if app.stop_flag == true break end % 控制暂停/继续 if app.pause_flag == true while(1) pause(0.001); if...
MatLab 中的基础工作区是针对当前 MatLab 窗口内的脚本代码而言的（无论是命令行窗口输入的还是 M 脚本...
解调后的音频信号经过一个增益(Gain)模块进行音量调节,通过改变波形幅度来直接调节音量,之后再通过音频播放模块(Audio Device Writer)播放。 3. MATLAB AppApp的用户界面通过MATLAB App设计工具(MATLAB App Designer)设计。App 设计工具是交互式开发环境,用于设计 App 布局并对其行为进行编程。它提供 MATLAB编辑器的完整...
Create a dsp.AudioFileReader object to read frames from an audio file. Create a dsp.STFT object to perform a short-time Fourier transform on streaming audio. Specify the same window and overlap length you used to create the audioTimeScaler. Create an audioDeviceWriter object to write frames ...
deviceReader = audioDeviceReader; info(deviceReader) Get Output Audio Device Information Copy Code Copy Command Create an object of the audioDeviceWriter System object™ and then call info to return a structure containing information about the selected driver, device name, and the maximum number ...
For the audio device writer object, specify the sample rate. In this case, use the same sample rate as the input data. audioIn.Filename ="speech_dft_8kHz.wav"; audioIn.OutputDataType ="single"; filtLP.Numerator = fir1(160,.15); ...
I want to be able to specify which audio output the sound to be played. Using audioDeviceWriter I am able to get the device info, but I don't know how I can change the output to a specific device. I try .Device(index) but that doesn't work. Please help. ...