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UM1743
Demonstration functional description (STM32F479I-EVAL and STM32F469I-DISCO)
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simply drag and drop the file to be converted to one of these helper files. After that an .emf
file with the corresponding size-postfix can be found in the source file folder.
9.1.3 Audio
recorder
Overview
The audio recorder module can be used to record audio frames in WAV format, save them in
the storage unit and play them later.
Features
•
Audio Format: WAV format without compression with 16k sampling stereo
•
Performance: MCU Load < 5%
•
Recorded files stored in USB Flash Disk (USB High Speed)
•
Embeds quick audio player
•
Only 8 Kbytes of RAM required for Audio processing
•
MP3 format is not supported, but can be easily added (separate demonstration)
Architecture
shows the different audio recorder parts and their connections and interactions
with the external components.
Figure 82. Audio recorder module architecture
