3.3. Audio V1 Microphone, Speaker and Midi

3.3.1. Overview

This example project shows USB Audio V1 speaker, microphone and midi device.

3.3.2. Board Setting

  • Connect a USB port on PC to the PWR DEBUG port on the development board with a USB Type-C cable

  • Connect a USB port on PC to one of USB port on the development board with a USB Type-C cable

  • Connect speaker to DAO interface

3.3.3. PC Synth Software

  • To test midi on PC, you need to install synth software.

    • Windows: MIDI-OX

    • Linux (Ubuntu): qsynth, qjackctl.

    • MacOS: SimpleSynth

3.3.4. Running the example

  • Download the program and run. The computer can automatically install the USB audio driver.

  • Select the speaker device as the default player, and the PC will play audio through the DAO interface

  • Select the microphone device as the default audio input device, and the PC will input audio through the PDM interface.

  • Taking Windows MIDI-OX as an example

    • Open MIDI-OX Software, click menu “options-MIDI devices…”, MIDI Inputs select “HPMicro UAC V1 DEMO”，MIDI Outputs select “Microsoft GS Wavetable Synth”.

    • Pushing PBUTN or User key button that will simulate pressing the piano keys, and users can listen to them through computer default speaker.