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The Adafruit Audio FX Mini Sound Board is a standalone WAV/OGG playback board that needs no Arduino or microcontroller to run. It stores audio in 2MB of onboard flash, plays it back at up to 44.1 kHz 16-bit stereo, and fires clips from 8 trigger inputs. It suits prop, costume and exhibit builders who want pushbutton sound effects without writing firmware. Compared with SD-card sound modules, it has less storage but simpler setup: files copy over USB and trigger behavior is set by filename.
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Owners of Adafruit's Audio FX boards generally praise how quickly they get sound into a project without a microcontroller. The common complaints are the small flash capacity and the need to solder headers and wire triggers carefully.
The Adafruit Audio FX Mini Sound Board plays WAV and OGG audio files. It works on its own, so no Arduino or other microcontroller is needed. It can be used to add sound effects to costumes and props.
Audio files are copied to the board's 2 MB of built-in flash storage from a computer over USB. The board supports compressed Ogg Vorbis and uncompressed WAV files, and it handles all bit rates and sample rates, including 44.1 kHz at 16-bit. Up to 8 buttons can be connected to trigger 8 different audio files. Five trigger effects are selected through the file names.
The board can also be controlled over UART at a baud rate of 9600, and an Arduino library is available. Each board is assembled and tested. Header strips are included to solder on as needed.
