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AN4229 Datasheet(PDF) 10 Page - STMicroelectronics

Part # AN4229
Description  How to implement a vocoder solution using STM32 microcontrollers
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4229 Datasheet(HTML) 10 Page - STMicroelectronics

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Package content and description
AN4229
10/26
DocID024112 Rev 1
2
Package content and description
2.1
Firmware description
STM32 audio vocoders package includes a set of firmware libraries used to build speech-
based audio applications. The firmware is made up of a main application (demonstration)
and four simple examples (one for each codec).
The project tree is presented in Figure 2.
Figure 2. Project tree
There are multiple abstraction layers for the audio components. The main abstraction layer
is located in "STM32_Audio/Common" (manages output interfaces, decoders and mass
storage control), while all the encoding/decoding operations are called by the abstraction


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