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ffmpeg 录制指定应用音频

FFmpeg自身并不具备直接捕捉来自于特定软件(如Microsoft Edge或Internet Explorer)的音频的功能。

解决方法:

    1. 安装虚拟音频设备:从VB-Audio Cable的网站 (https://vb-audio.com/Cable/)下载并安装VB-CABLE Virtual Audio Device。
    2. 配置IE浏览器的音频输出:在系统声音设置中将默认的播放设备设置为VB-CABLE。
    3. 使用ffmpeg捕获音频:确定虚拟音频设备的名称(可以在“声音”设置中找到),然后在终端运行ffmpeg命令。你可能需要使用list命令
      来确定你的设备名称:
      ffmpeg -list_devices true -f dshow -i dummy
    4. 捕获音频:ffmpeg -f dshow -i audio="虚拟音频设备名称" output.wav
  • 捕捉的是整个系统的音频,需要区分录音文件中的音频
ffmpeg -f dshow -i audio="Stereo Mix" output.wav

lindows-rs 进程

继续#18 :

  • 窗口级别的音视频捕获
  • 支持 libvpx 编解码,可额外支持 av1
  • webrtc 支持
  • 支持窗口大小变化时立即调整以再次开始编解码

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