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Implementing the ADPCM algorithm in high-density ...
https://www.st.com/resource/en/application_note/cd00224093-implementing-the-adpcm-algorithm-in-highdensity-stm32f103xx-microcontrollers-stmicroelectronics.pdf
The implementation of the IMA ADPCM algorithm consists in two functions, one that codes and the other that decodes the audio samples. The ADPCM firmware is composed of two files: a) adpcm.c: it contains the source code of t he two ADPCM functions that perform the coding and decoding. b) adpcm.h: it is the header file of adpmc.c. It should be included in the files where
ADPCM and Speex (Audio) Library for PIC32 MCUs | …
https://www.microchip.com/en-us/software-library/adpcm-and-speex-audio-library
This AAC algorithm (Source Code) is designed for 80MHz or greater PIC32MX MCUs. This code requires 62MIPS peak 34MIPS average performance, 61KB Flash and 12KB RAM without frame buffer memory for operation on the PIC32MX MCU. This product is the modifiable source code. Users remain responsible for licensing for their products through Via Licensing.
Flash IMA ADPCM - MultimediaWiki
https://wiki.multimedia.cx/index.php?title=Flash_IMA_ADPCM
Flash IMA ADPCM - MultimediaWiki Flash IMA ADPCM Flash files can contain audio data encoded with IMA ADPCM. However, the file can use a number of different predictor sizes instead of just 4 bits as in most IMA ADPCM formats. 2, 3, and 5-bit predictors are also available. Categories: Audio Codecs ADPCM Audio Codecs IMA ADPCM Audio Codecs
Overview :: 1 bit adpcm codec :: OpenCores
https://opencores.org/projects/audio
VHDL code consists: 1-bit ADPCM Decoder (x2), I2S Driver (x1), I2C Driver (x1), Flash Memory Driver (x1), Keyboard Driver (x1), LED Bar (x1), Volume and Config Engine (x1). Codec (Encoder/Decoder) is available in Win32 application that you can use it to encode PCM RAW wave files, then burn the *.DJ file into the flash, make sure the flash is already clear (you can use the …
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