Sound output via headphone jack and HDMI simultaneously

General Discussion
1

Raspi 4 (4GB), Dietpi (current version) and Kodi (Matrix)

Hello,
is there a easy way to have sound output in headphone jack and HDMI (and usb-sound-card gladly also) simultaneously ?

2

Generally there is a “multi” plugin for ALSA which allows this: https://alsa.opensrc.org/TwoCardsAsOne
But I’ve never tested it. The system wide also config is at /etc/asound.conf.

1 Like
3

Thank you for this hint! It seems not to be a easy way, but I will test it and post result afterwards.