使用 MediaPlayer 作为源在 Android 上录制音频? [英] Record audio on Android with MediaPlayer as source?

问题描述

在 Android 上，您可以使用 MediaRecorder 类从麦克风录制音频:MediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);

On Android, you can record audio from the microphone using the MediaRecorder class: MediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);

我想录制由 MediaPlayer 实例(或其他一些音频播放设备)播放的音频的某些部分.那可能吗?我将如何设置自定义音频源?

I want to record some parts of audio being played by a MediaPlayer instance instead (or some other audio playback device). Is that possible? How would I set a custom audio source?

总结；如何将音频从任意音频源流式传输到 MediaRecorder?

推荐答案

我认为目前没有 API.尽管这是可能的，但您必须能够访问设备的缓冲区，直到内核/硬件级别.即使您找到了方法，我也不认为 Android 会允许您在应用程序级别执行此操作.

I don't think there is an API for that for now. Though it IS possible, you would have to have access to the device's buffer, down to the kernel/hardware level. Even if you find a way, I don't think Android would give you permission to do this on application level.

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