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ADPCM and Speex (Audio) Library for PIC32 MCUs
https://www.microchip.com/SWLibraryWeb/product.aspx?product=ADPCM%20and%20Speex%20Audio%20Library
ADPCM and Speex (Audio) Library for PIC32 MCUs. ... 61KB Flash and 12KB RAM without frame buffer memory for operation on the PIC32MX MCU. This product is the non-modifiable binary code. Users remain responsible for licensing for their products through Via Licensing.
Overview :: 1 bit adpcm codec :: OpenCores
https://opencores.org/projects/audio
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 ...
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
PIC32MX Advanced Audio Coding (AAC) Decoder library provides easy to use APIs for decoding an audio stream encoded using Advanced Audio Coding (AAC) encoding. The PIC32MX AAC Decoder library supports the following: - Sample rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48, 64, 88.2 and 96KHz. - Bit rates: 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384 …
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