As with all highly anticipated news, the first reports are often muddled and confused. This audio report is no different, sharing the exciting news of Japan's surrender to the Allies on 12 August 1945 and then recalling the news flash.
While this account is semi-true, the Japanese government had only sought a surrender from the US, not actually having signed anything yet. The twin destructions of Hiroshima and Nagasaki by the atomic weapons had obtained the result Truman had hoped they would and eleviated the necessity of invading the Japanese homeland.
President Truman has announced that 14 Aug will be V-J (Victory over Japan) Day. The official unconditional surrender of Japanese forces will take place on 1-2 September, 1945.