One Direction's sound engineer
What's it like working as a globe-trotting sound engineer to the world's biggest pop band?
We had a chat with David Martell to find out...
After this interview, David answered questions from fans and wannabe sound engineers on Twitter, and you can see what he said in our Q&A highlights:
The Audio Engineering Society UK
The Music Producers' Guild represents the interests of everyone working in the UK music sector producing and recording facilities and various professions.
Homepage image: Harry Styles | Eva Rinaldi | Flick: Creative Commons