Raspberry Pi 1.54inch LCD-Retropie-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 settingthe VOLUME will became ok

Price: $15.89
Part Number: rpi-1.54inch-lcd
Brand: Spotpear
SKU: 0104003