MediaRecorder.audioBitsPerSecond
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2021年4月.
audioBitsPerSecond MediaRecorder 接口的只读属性。它返回录制器所使用的音频编码码率。或许与构造函数中指定的比特率有些不同（如果调用构造函数的时候有指定）。