DescriptionDe-Schallmauer.ogg English: Pronunciation recording of German noun "Schallmauer". Male voice, recorded by native German speaker from Berlin...
DescriptionDe-die Schallmauer durchbrechen.ogg English: Pronunciation recording of German word combination "die Schallmauer durchbrechen". Male voice,...
1947 durchbricht Chuck Yaeger mit der Bell X-1 als erster Mensch die Schallmauer. English: Chuck Yeager exceeding the speed of sound for the first time...