After years of tinkering in a Bavarian research lab in the 1980s, electrical engineering student Karlheinz Brandenburg and his professor arranged a meeting to pitch a promising innovation.
Grundig AG, once Europe’s biggest maker of radios, sent two engineers for a demo at the university’s tiny audio lab on the outskirts of Nuremberg. While mildly intrigued, they passed on funding the research, saying they didn’t see a way to use it.
"Come back to us once this works well enough that even the most critical listeners can’t distinguish it from the original signal,” Brandenburg recalled them saying.