張貼日期：2013/12/26 上午 08:16:16
在背景喚起 app 錄音是不能的.
但如果 app 在前景開啟錄音功能，而 app 接著跑到背景，那麼錄音是不會中斷。
但就是不能背景喚起錄音. 我的實驗結果如下文字敘述.
Currently, iOS does not allow starting an audio session or audio recording in the background. An app has to start audio in the foreground, but can just throw away any recorded audio data until needed, which could be in the background when using the appropriate background modes and audio session.