MixerTUI 1.1
Updated Post: alfonsosiciliano.gitlab.io/posts/2020-04-24-mixertui-1-1.html
Please refer to the new Blog alfonsosiciliano.gitlab.io for updates.
MixerTUI 1.1 is out!
MixerTUI is an audio mixer with a Terminal User Interface for FreeBSD, the new features of this version are: -d -h -m -v options and TAB to switch view mode.
To install the port audio/mixertui:
# cd /usr/ports/audio/mixertui/ && make install clean
To add the package:
# pkg install mixertui

Options and features:
SYNOPSIS
     mixertui [-c | -h | -v] [-d <unit>] [-m <mixer>]
DESCRIPTION
     The mixertui utility is an audio mixer with a Terminal User Interface.
     The following options are available:
     -c      Disable color.
     -d <unit>
             Show the device with the <unit> number, default sysctl
             hw.snd.default_unit.
     -h      Display options, a short description and exit.
     -m <mixer>
             Use <mixer> to get the list of devices, default /dev/mixer.
     -v      Show version and exit.
     The following user interface features are available:
     Esc Q q
             Exit.
     F1 ? H h
             Open Help window.
     F2      Show Sound Driver information.
     F3      Playback View: show playback controls.
     F4      Capture View: show capture controls.
     F5      All View: show all controls.
     TAB     Switch View F3/F4/F5.
     F6      Select audio device.
     F7      Show audio device information.
     F8      Set current device as default.
     R r     Refresh screen.
     KEY_LEFT
             Previous control.
     KEY_RIGHT
             Next control.
     KEY_UP/KEY_DOWN
             Increment/Decrement volume.
     +/-     Increment/Decrement volume.
     PAGE_UP/PAGE_DOWN
             Increment/Decrement volume in a big step.
     End     Set volume to 0%.
     Home    Set volume to 100%.
     0-9     Set volume to 0%-90%.
     a/s/d   Increment left/both/right volume.
     z/x/c   Decrement left/both/right volume.
     B b     Balance left and right volume.
     M m     Toggle mute.
     </>     Toggle left/right mute.