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ArmDeveloperEcosystem / rnnoise-examples-for-pico-2

Example project to demonstrate the RNNoise audio noise suppression algorithm running on a Raspberry Pi Pico 2 board, using the RP2350's Cortex-M33 processor.
BSD 3-Clause "New" or "Revised" License
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audio noise-suppression pico-2 rnn rp2350

readme

RNNoise Examples for Pico 2

Example project to demonstrate the RNNoise audio noise suppression algorithm running on a Raspberry Pi Pico 2 board, using the RP2350's Cortex-M33 processor.

Hardware

Default Pinout

PDM Microphone

Raspberry Pi Pico 2 / RP2350 PDM Microphone
3.3V VCC
GND GND
GND SEL
GPIO 21 DAT
GPIO 20 CLK

GPIO pins are configurable in example.

Examples

See examples folder.

Cloning

git clone https://github.com/ArmDeveloperEcosystem/rnnoise-examples-for-pico-2.git

Building

  1. Set up the Pico C/C++ SDK
  2. Set PICO_SDK_PATH 
    export PICO_SDK_PATH=/path/to/pico-sdk
  3. Create build dir, run cmake and make: 
    mkdir build
cd build
cmake .. -DPICO_BOARD=pico2
make
  4. Copy example .uf2 to Pico when in BOOT mode.

License

BSD-3-Clause license

Disclaimer: This is not an official Arm product.