Which system do you use? Android, Ubuntu, OOWOW or others?
Which version of system do you use? Khadas official images, self built images, or others?
Please describe your issue below:
`**I use “HELIX HEC HD-AUDIO USB-INTERFACE” when connected via usb, there is no sound. When you connect a phone (samsung note 20 ultra) via OTG, there is sound. I also used the Mekotronics R58x (rk3588) prefix earlier through which everything worked.
I use khadas edge2 in my car instead of a head unit in conjunction with a 4k oled touchscreen.
The HD-AUDIO USB-INTERFACE extends HELIX devices with a High Resolution Audio USB input and converts a PC or smartphone into a HD-Audio player.
The direct digital signal transmission (without additional AD-DA conversion) from the music source to the DSP with up to 192 kHz / 32 Bit allows lossless audio processing and thus assures perfect sound quality.
I tried different ports on khadas but no sound. When using the USB check application, khadas detects it as HD-AUDIO USB-INTERFACE. I saved the logs via android studio giraffe logcat.
For information: I have a touch monitor connected to khadas under thunderbold (type-c). When I was recording the logs, the monitor was physically turned off.