Install ffado-mixer-qt4 by entering the following commands in the terminal:
sudo apt update sudo apt install ffado-mixer-qt4
Description:
FFADO D-Bus mixer applets (QT4)
FFADO is a Linux driver for FireWire (IEEE1394) audio devices. . The FFADO library permits discovering and configuring such devices and provides an API for streaming clients. . This package holds the mixer and control applications that communicate with ffado-dbus-server. (Qt4 version)
Homepage: http://www.ffado.org/
Version: 2.3.0-5.1
Section: universe/sound