Comic Title: Detective Comics #149
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: July 1949
Approx. On Sale Date: May 20, 1949 Copyright Date May 18, 1949
Source: Library of Congress, Periodicals 1949
Until 1958 DC did not report actual on sale dates to the copyright office
The publication dates listed in LoC records are NOT release dates.

Frequency: Monthly
Cover Price: $0.10
Page Count: 48
Editor: Jack Schiff

Title: "The Sound-Effect Crimes"
Pages: 12

Feature(s):
Batman (of Earth-2)

Writer: Bill Finger
Artist: Dick Sprang

Reprinted In:
Batman Archives Vol. 7 HC (2008)
Batman:The Golden Age Omnibus Vol. 6 HC (2019)

Feature Character(s)

• Batman (last appearance in Star Spangled Comics #94; next appearance in World's Finest Comics #41)

Supporting Character(s)

• Robin (last appearance in Star Spangled Comics #94; next appearance in World's Finest Comics #41)

Villain(s)

• Joker (last appearance in Batman #53; next appearance in Batman #55)
• The Joker's gang (no further appearances)

Synopsis:
Inspired by the sound effects on a radio program, the Joker decides to use sound effects in his crimes. He records several sounds then plays them at high volume to panic the public. When they flee, he moves in to commit robbery.

Batman discovers the Joker's method and uses a device to locate the phony sounds. When the Joker panics the entire city with a phony bombing raid, Batman goes on the radio to calm them.

The Joker records Batman's voice, then alters his speech, so that instead of a calming message, a warning is issued. The Joker plans to play the warning at a radio station and cause panic. However, Batman has predicted the Joker's plan and is waiting at the station to arrest the crook.