As part of that job, Carpenter announced USC and UCLA football games for the Pacific Coast and the NBC radio networks from 1932 until 1935.

Carpenter became the color man for Bill Stern for all NBC-originated radio programming from Los Angeles from 1938 until 1942, which included the Rose Bowl.

[4] By virtue of his extensive announcing career, he wound up with uncredited roles in well-known movies, including Mr. Smith Goes to Washington and Susan Slept Here.

He was also the narrator for producer Jerry Fairbanks' theatrical short-subject series Unusual Occupations and Speaking of Animals, both released by Paramount Pictures.

He died at Saint John's Health Center in Santa Monica, California on October 16, 1984[5] after suffering a brief illness.