The good people from cheesycam recently published an interesting look at the AspenMics lav microphone as well as a video demonstrating how to best use a lav mic and your smartphone to record audio for your video.
The AspenMics is a relatively inexpensive Lav microphone that you can either connect to an external recorder or to a mobile device (using a TRRS adapter which lets you connect it to a mobile device properly). It is almost half the price of the Rode SmartLav+ (which has a direct TRRS connector – a good thing if you only use your smartphone but less convenient if you also have a dedicated external recorder).
On the second video there is a good explanation on how to best use the RØDE Rec app – there are a few things that you will need to configure in the app so you better watch and perform each step. You can download the Rode REC App from itunes (just under $6).
Below is a second video looking at Using iPhone 6 as Portable Audio Recorder DSLR Video
This is not the only lav microphone that can be used with a mobile device that we looked into here – in the past we have looked at the RODE smartLav+ and covered a Comparison of 6 Sub $200 Lavalier Microphones both done by Curtis Judd.
Pricing for the AspenMics starts at around $55.
You can watch more HDSLR and video techniques on our dedicated HDSLR channel here on LensVid.