USB device that should be Master: If so desired, this enables you to configure JACK to treat a connected external USB audio device, such as a USB audio interface, to be treated as if it were the internal master audio device, overriding the setting set above.Ĭhannel Count (0 = default) input/output: These settings control how many inputs/outputs Jack is allowed to access for dummy audio devices. Jack Master Device (no USB): This is for selecting which internal audio device should be the master device. The buttons at the bottom of this tab allow you to Start or Restart Jack, Stop Jack (return system audio to default settings), or Apply Audio Settings without restating Jack, if possible.Īdditionally, to facilitate routing and audio control, three more buttons are presented to conveniently open other applications for control: QASMixer (a graphical control for the ALSA audio backend), Pulse Control (PAVUControl, a graphical control for PulseAudio), and Carla (an audio plugin host/rack and patchbay for Jack). Jack status: Shows whether or not the Jack audio server is running, and also displays the amount of Digital Signal Processor (DSP) in use. This is where the configuration for the JACK Audio Connection Kit (Jack) is done, and shows the status of the JACK audio systemīridge ALSA to Jack MIDI (turn on a2jmidid): This allows Jack to use external MIDI devices. Logging level: Changes how much information is in the logs. Experiment with this setting to see what gives you the best performance/lowest latency without Xruns if doing audio work. Intel Boost: Sets the Intel Boost to On or Off. If you are doing low latency audio work, the CPU Governor should be set to Performance If this button is available, click it, and follow the instructions to log-out and log back in.ĬPU Governor: Sets the CPU governor. Ubuntu Studio Controls can be found in the Audio Production menu.Īt the top of the window, you will see a button to enable Real Time Permissions for audio. If not already installed, open a terminal and type: If you are running a different official flavor of Ubuntu than Ubuntu Studio, Ubuntu Studio Controls installs with the Ubuntu Studio Installer. To obtain this newer version, add the Ubuntu Studio Backports PPA. However, the version covered in this page is only part of Ubuntu Studio 20.04 and higher, or any supported Ubuntu Studio version with the backports PPA. Ubuntu Studio Controls is installed in Ubuntu Studio by default. Settings persist between reboots, including JACK's running state.Persists your configuration between reboots.Gives control over the JACK Audio Connection Kitīridges ALSA MIDI and PulseAudio to JACK if neededĪllows for multiple, custom-named PulseAudio BridgesĪdds USB Devices to JACK when they are plugged inĪllows multiple audio devices to use JACK at once.Adds the user to the Audio group for real-time permissions if needed.Adjusts the CPU Governor for higher processing power as required.Ubuntu Studio Controls has several key features that make it unique: Ubuntu Studio Controls is the easiest and best way to configure your Ubuntu Studio installation for real-time audio. This section is for the version of Ubuntu Studio Controls 1.12.6 included with Ubuntu Studio 20.04 LTS and already included in the Ubuntu Studio Backports PPA.