Audio configuration tutorial

Download audremap18.dtbo to your pi
sudo cp audremap18.dtbo /boot/overlays/
sudo nano /boot/config.txt
Add this code
dtoverlay=audremap18,pins_18_19
(audremap18.dtbo just enable gpio18 as pwm audio pin,
This Above code will not enable gpio19 as pwm audio pin,
gpio19 have configured as key START)

After rebooting , You need enable local audio

sudo raspi-config Select System Options -> Audio -> 'headphone'

Go to retropie menu

Select -> AUDIO -> HEADPHONE

Then reboot again use sudo reboot

Set audio voice max

Press key START enter retropie MAIN MENU

select SOUND SETTING
->SYSTEM VOLUME 100
->AUDI0 DEVICE -> HEADPHONE

->OMX PLAYER AUDIO DEVICE -> LOCAL

Go back press key B，
Then enter SOUND SETTING ->SYSTEM VOLUME again
You will see it is 97 or 77,You need set it 100 again|
After all setting， the VOLUME will became ok

TAG： Raspberry Pi Pico rp2040 Display image 1.3inch LCD ST7789 change bmp to hex Raspberry Pi 5 Raspberry Pi Pico 2 RP2350/RP2040 W5100S-EVB-Pico W6300-EVB-Pico2 Ethernet Development Board ETH RJ45 Raspberry Pi PICO SpotPear Raspberry Pi 5 RTC Box Raspberry Pi 5 Arduino 0.85inch LCD Raspberry Pi MLX90640 UGV Beast PT AI 4G 5G OpenCV Robot Car MediaPipe For Raspberry Pi4B/5 ESP32 UART USB Bus Servo ST RSBL Driver board For Raspberry PI Robot Raspberry Pi 5 PCIe to USB3.2 Gen1 Hub 5Gbps For Raspberry Pi OS Drive free CAN FD Analyzer Raspberry Pi MLX90640 Raspberry Pi 5 8 inch DSI LCD Captive TouchScreen MIPI Display 1280x800 Industrial One-Body Tablet PC With 5MP Front Camera Raspberry Pi 64MP Camera Raspberry Pi 5 Raspberry Pi 5 PCIe to M.2 5G/4G/3G HAT With RM520N-GL Raspberry Pi 5 Camera User Guide RS485 Interface

Raspberry Pi 1.54inch LCD-Retropie-Audio configuration tutorial

Raspberry Pi Game zero 2W/2B/3B+/4B 1.54inch mini LCD