LWDW 372: PipeWire By Default

Ubuntu Studio switches to PipeWire! KDEnlive gets OpenAI’s Whisper speech recognition system, Raspberry Pi holes made easy, and installing Reaper on Linux.


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00:00 Intro
04:34 Lunar Lobsters
07:42 Pipewire in Ubuntu Studio
12:20 KDENlive gets Whisper AI
20:30 Reaper on Linux
24:38 Raspberry Pi holes

Ubuntu Lunar Lobster



    • The latest short-term release of the Ubuntu Linux operating system, Ubuntu 23.04 “Lunar Lobster”, has been released!
    • This release is supported for 9 months with bug fixes, and critical app updates, 
    • Ubuntu 23.04 includes a new installer made using Flutter, and leverages Subiquity, which is Canonical’s CLI installer for Ubuntu Server, and Curtin technologies.
    • The new installer is more modern looking, has an improved partition manager and a nice looking slideshow during the install.
    • You get a new GNOME 44 with some Ubuntu tweaks including:
      • Screenshot button on the quick menu
      • Quick Bluetooth toggle to view/manage devices
      • Updates to the file manager (like improved search speed)
      • And you can Monitor background apps
    • There are updates to the Nautilus File Manager, including a thumbnail view in the GTK file picker and an expandable folders option for list view.
    • Also, along with the beautiful new “Lunar Lobster” wallpapers, you get Linux Kernel 6.2.
    • And like we have talked about before, with the release of Ubuntu 23.04, there is a separate “mini” 140 MB ISO file.
    • And there are two new official flavours in this release:  Ubuntu Cinnamon and Edubuntu.
    • You can download Ubuntu 23.04 from the official Ubuntu website, or do an upgrade.
    • One particular spin you may know of is Ubuntu Studio and their Lobster update comes with a big change. 
    • Pipe Wire is now the default sound server. 
    • This means that, without configuration, all JACK and PulseAudio applications will simply work without much configuration.
    • Patchance is included for advance routing with Pipewire and it’s fully compatible with Jack. 
    • Then they go on to tell you PipeWire is good for desktop usage but not ready for professional use. 
    • Robin (one of the Ardour devs) had this to say. 
  • “JACK is mature and reliable, musicians can trust it live on stage, pipewire is still under heavy development and sadly not yet ready for prime-time.” 
  • Something that I have been saying for the past couple of years. 
  • We all love Pipewire but it has a long way to go before it matches Jack. 
  • Jack can be a monster to get configured even if you know what you’re doing and Ubuntu Studio had a lot of that sorted out of the box. 
  • Now it has Pipewire. 

Kdenlive 23.04.0 (RTheren)


  • Oh look, nested timelines. 
  • These are really handy when you are working on a complex segment like an intro or animation.
  • Instead of adding a bazillion tracks to the main timeline you can keep things organised.
  • This release comes with OpenAI’s Whisper speech recognition system which handle punctuations flawlessly.
  • We might see QT6 with improved GPU support by the end of year.  
  • It’s still struggling to playback DNxHR HQ, which we record the show in. 
  • Kdenlive 23.04.0 has been released with some awesome new features.
  • There is a new timer filter which allows you to add a counter overlay on your videos, and you can adjust the counter overlay font, position and format.
  • This release comes with OpenAI’s Whisper speech recognition system which handle punctuations beautifully and supports many languages.
  • And you can automatically translate texts to English using OpenAI’s Whisper.
  • I am happy to see new transitions in Kdenlive.  Ones that I am used to using in other Non-linear video editors, like wipes, slides and circular wipes.
  • And the KDE Store has a new category for Kdenlive project files where you can download animated templates made by the community.
  • Some of these animated templates allow you to bring multiple video files together with various slides and transitions.

Reaper On Linux


  • Don’t fear the penguin. 
  • Reaper is a popular cross-platform DAW that runs on X86 and ARM. 
  • I’ve been using it as a live digital mixer for the past couple of years. 
  • It’s the nerve centre for the audio during live shows. 
  • This guide is for new users trying to figure out this Linux thing. 
  • Download, decompressing, installing and tweaking. 
  • I have other Reaper content planned as well. 

Slice of Pi



  • I have been watching Jeff’s progress on this, and it has been amazing.
  • He hasn’t gotten everything to work yet, especially on the Nvidia side, but I know he will some day.
  • The pig is a passive base to link the Raspberry Pi Compute Module 4 to PCIe add-in boards.
  • What you see in the image is the carrier board used to hold the Pi4 compute module. 
  • This makes it easy to test GPUs and other PCIe devices. 
  • Today only some older AMD GPUs work. 

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