Android phones are great for recording through the internal microphone, but what they lack is an external input you can plug analogue audio sources into. Here, we show you how to record audio directly from external devices. Connection type Most Android smartphones are designed to allow you to make calls using the bundled earphone set, through a small mic embedded in the inline controls. If your phone has this ability, it’s because the earphone socket is known as a TRRS type (Tip, Ring, Ring, Sleeve). Basic stereo headphones only need three connection points – the fourth point here provides the mic connection. It’s this fourth connection we're going to utilise. First, you need to get a 3.5mm to three RCA socket adapter. This adapter is normally used for camcorders, but plugged into your phone’s headphone socket, the red RCA socket becomes the external audio input. (The 3.5mm plug is a TRRS type). You can then feed that RCA socket with any suitable audio cable. For examp
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