olimex@a20-olinuxino:~$ aplay -l
aplay: device_list:274: no soundcards found...
U-Boot 2021.04+olimex-1-20250305.102147 (Mar 05 2025 - 10:22:57 +0000) Allwinner Technology
CPU: Allwinner A20 (SUN7I)
ID: A20-OLinuXino-LIME Rev.A
SN: 00000000
MAC: FF:FF:FF:FF:FF:FF
I2C: ready
DRAM: 1 GiB
MMC: mmc1:0c0f000: 0
Loading Environment from EXT4... *** Warning - bad CRC, using default environment
Loading Environment from FAT... ** No device specified **
HDMI connected: Setting up a 1920x1080 hdmi console (overscan 0x0)
In: serial
Out: vga
Err: vga
Allwinner mUSB OTG (Peripheral)
Net: eth0: ethernet@1c50000, eth1: usb_ether
starting USB...
Bus usb0c14000: USB EHCI 1.00
Bus usb1c14400: USB OHCI 1.0
Bus usb1c1c000: USB EHCI 1.00
Bus usb1c1c400: USB OHCI 1.0
scanning bus usb0c14000 for devices... 7 USB Device(s) found
scanning bus usb1c14400 for devices... 1 USB Device(s) found
scanning bus usb1c1c000 for devices... 2 USB Device(s) found
scanning bus usb1c1c400 for devices... 1 USB Device(s) found
scanning usb for storage devices... 1 Storage Device(s) found
Hit any key to stop autoboot: 0
https://ibb.co/pGc5HHJroot@a20-olinuxino:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: sun4icodec [sun4i-codec], device 0: CDC PCM Codec-0 [CDC PCM Codec-0]
Subdevices: 1/1
Subdevice #0: subdevice #0
root@a20-olinuxino:~# aplay file_example_WAV_5MG.wav
Playing WAVE 'file_example_WAV_5MG.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo