I have a fairly popular video on how to use the GoPro Microphone Adapter on my channel, and due to its high view count, I get a lot of questions on it. The most popular question relates to why we have to use the large and expensive adaptor in the first place. It sells for $50 or $80, if it’s in stock, and it stands to reason that a cheaper alternative for around $10 might do the trick. I’ve answered the question about 20 times already, so to save myself and my viewers some time, I thought I’d draft a thorough response here.
TD;LR – Sadly we cannot use a cheap 3.5mm mic to USB-C adapter. Find out the reasons below.