No licenses are sold.
Please use GentooPlaye and AudioLinux's TargetApp.
Or purchase Target products from your local distributor.
https://www.diretta.link/
https://www.diretta.link/certificate.html
You can determine if it is available in your computer.
44.1Khz is available as a free version.
limited edition (write it to a USB memory stick and run it on an x64 computer)
https://www.diretta.link/preview/
Limitations from the full version:
Playback of formats other than bottom Hz will stop after 6 minutes (after that, playback will be disabled for 1 minute).
PCM
44.1KHz
48KHz
DSD
2.8MHz
3.1Mhz
Target Setting is not using.
Can not support update.
ASIO Driver
RaspberryPi Boot SD
Support Software : Diretta Assistenza
RaspberryPi 3 4