If you are an iPhone user and shoot video, do you know where the microphone is that records sound for video?

If you have an iPhone, 4, 4S or 5 and you think it is at the 'bottom' of your mobile, close to where your mouth would be when speaking on the phone, you are wrong.

The video mic on the 4 and 4S is the small dot next to the headphone socket (see image above). On the iPhone 5 the video mic is close to the camera lens.

The three models have a separate microphone for video, Marc Settle, who trains BBC reporters in using iPhones to shoot video, has pointed out.

As Glen Mulcahy, innovation lead at Irish broadcaster RTE, explains in this helpful post, Settle demonstrated to him that the video mic is not where many people think it is.

The advice comes after Mulcahy led a session on mobile journalism at Friday's news:rewired, a conference run by Journalism.co.uk.

Read Glen Mulcahy's blog post for more and for pictures of the mic locations.

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