For openSUSE Leap 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/X11:Deepin/openSUSE_Leap_15.6/X11:Deepin.repo
zypper refresh
zypper install deepin-voice-note
For openSUSE Leap 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/X11:Deepin/openSUSE_Leap_15.5/X11:Deepin.repo
zypper refresh
zypper install deepin-voice-note
For openSUSE Leap 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/X11:Deepin/openSUSE_Leap_15.4/X11:Deepin.repo
zypper refresh
zypper install deepin-voice-note