Category: Baseball Sound & Audio Innovation
Year: 2005 (patent filed 2004, granted 2006)
Inventor / Maker (Person): James Cracolici
Company / Manufacturer: Independent Inventor (patent assigned to Cracolici)
Country of Origin: United States
Overview
The microphone-equipped baseball base represents a direct response to a problem broadcasters had faced for decades : television and radio audiences could not hear the intimate sounds of the game happening on the field—players sliding into bases, the impact of cleats on the bag, the quiet communications between base runners and coaches . This innovation embedded a small microphone and wireless transmitter directly into a regulation baseball base , allowing broadcasters to capture and amplify sounds from within the playing field for the first time.
The invention was described in U.S. Patent No. 5,963,849, filed in 1997 and granted in 1999 . The patent specifically addressed a key technical challenge: protecting the microphone from damage when players stepped on the base. The solution involved placing the microphone in a channel along the outside surface of the base , then filling the channel with a non-noisemaking substance (typically silicone) that would cushion the microphone without creating unwanted noise .
Historical Significance
Before this invention, broadcasters had tried various techniques to capture on-field sound. They placed shotgun microphones around the perimeter of the field, but these often picked up more crowd noise than player sounds . They tried microphones on players , but these interfered with play and annoyed athletes. They attempted overhead microphones in indoor arenas, but this was impractical for outdoor stadiums . The microphone base solved these problems by putting the microphone where the action actually happened —inside the base itself.
The patent application explicitly articulated the broadcast value of this innovation: “If broadcasters could make the viewers and listeners feel closer to and more involved with the game, viewers would be less likely to turn off the television (or radio), change channels or focus their attention elsewhere” . This reflected a growing understanding in the broadcast industry that immersive audio drives viewer engagement —a concept that would become central to sports production in the following decades.
The system was designed for installation on first, second, and third base , with each base transmitting on a different radio frequency so that broadcasters could select which audio signals to mix into their telecasts .
Visual Description
The microphone base appears externally identical to a regulation baseball base—a white canvas-covered rubber or foam pad measuring approximately 15 inches square. The innovation is hidden from view. Inside, the base contains a small protective box secured to the baseplate , housing the transmitter and power source , with a weatherproof cover and sealing material to protect the electronics from moisture and dust . A small channel cut into the outside surface of the base holds the microphone element , with silicone filling the channel to cushion the microphone while allowing it to detect sound.
Educational Highlights
This artifact teaches several important principles of broadcast engineering and sports media production. First, it demonstrates how miniaturization of electronics (small enough to fit inside a base without altering its playing characteristics) enabled new forms of sports coverage. Second, it shows the problem-solving process in broadcast innovation: identifying a specific audio gap (the inability to hear field-level sounds), proposing a solution (embedding microphones), and addressing technical challenges (protecting the electronics from player impact). Third, the microphone base illustrates how patented technologies often take years to reach widespread adoption—this patent was filed in 1997, but it would be over a decade before such techniques became standard in major sports broadcasts .
Maker / Company Info
James Cracolici, the inventor listed on the patent, was an independent inventor based in Monroe, New York . The patent was assigned to him personally rather than to a corporation, suggesting this was an individual innovation rather than a corporate research project. The patent was later cited by other inventors working on similar sports audio technologies.
Related Collections
This artifact is part of several thematic collections within the museum, including Baseball Sound & Audio Innovation, Broadcast Technology History, and On-Field Audio Capture. It pairs well with the “Crack of the Bat” parabolic microphone, representing a different approach to the same problem: capturing the sounds of the game for audiences at home.
References / Further Reading
Cracolici, J. (2006). Baseball device with sound. United States Patent Application US20060089214A1.
Cracolici, J. (1999). System for using a microphone in a baseball base. United States Patent No. 5,963,849.