Gall finished his radio and television engineer and Tonmeister training in 1984-85. He completed his training in Munich and London. From 1985 to 1987, Gall worked as a freelance media technician and sound engineer among others for MCM Musik- und Schallplatten Verlags GmbH in Munich. He served as the managing director of the SAE Institute branch in Austria. He became Deputy Technical Director of the radio station Antenne Bayern in Munich in 1989. He moved to the Berlin radio station 104.6 RTL in 1991 as the Technical Director.