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Notices by Jiří Eischmann (sesivany@mastodon.cloud)

  1. Jiří Eischmann (sesivany@mastodon.cloud)'s status on Thursday, 05-Sep-2019 09:49:20 EDT Jiří Eischmann Jiří Eischmann

    When I upgrade the OS, (mostly 3rd party) apps occasionally break because their dependecies change. And as it happens I gradually move to #Flatpak 'cause it doesn't happen there: Spotify, VLC, Telegram.. and now Feedreader which started performing badly on #Fedora 31.
    I know I should report it and wait for a fix (which eventually arrives), but I've grown tired of it. It's a never-ending story. App developers should decide when their app's dependencies change, not your OS vendor.

    In conversation Thursday, 05-Sep-2019 09:49:20 EDT from mastodon.cloud permalink
  2. Jiří Eischmann (sesivany@mastodon.cloud)'s status on Wednesday, 20-Mar-2019 10:54:17 EDT Jiří Eischmann Jiří Eischmann

    #LDAC codec is now available in #Fedora: https://apps.fedoraproject.org/packages/libldac …
    Now let's make use of it in #PulseAudio and #PipeWire to improve sound quality in Bluetooth 🎧 in #Linux. ✌️

    In conversation Wednesday, 20-Mar-2019 10:54:17 EDT from mastodon.cloud permalink
  3. Jiří Eischmann (sesivany@mastodon.cloud)'s status on Sunday, 03-Mar-2019 08:04:52 EST Jiří Eischmann Jiří Eischmann

    I've proposed to have a #Fedora instance of #Mastodon: https://discussion.fedoraproject.org/t/fedora-in-fediverse/1168
    What do you think? Would you join?

    In conversation Sunday, 03-Mar-2019 08:04:52 EST from mastodon.cloud permalink

    Attachments

    1. Fedora in Fediverse
      from Fedora Discussion
      Fediverse has a growing number of users, many important open source projects are there (GNOME, KDE, Ubuntu, Nextcloud, Debian, Ubuntu, openSUSE…), there are quite a few Fedora contributors scattered across multiple instances. So I’ve been thinking about running a Mastodon [1] instance for Fedora. E.g. with the fedora.social domain, just like Ubuntu has it. We can either run it on our premises or choose Mastodon as a service (masto.host). At the beginning it could be just for Fedora contributors...
  4. Jiří Eischmann (sesivany@mastodon.cloud)'s status on Monday, 11-Feb-2019 15:55:23 EST Jiří Eischmann Jiří Eischmann

    My writeup on supporting advanced Bluetooth codecs and thus improving wireless audio quality significantly on #Linux: https://eischmann.wordpress.com/2019/02/11/better-bluetooth-sound-quality-on-linux/

    In conversation Monday, 11-Feb-2019 15:55:23 EST from mastodon.cloud permalink

    Attachments

    1. Better Bluetooth sound quality on Linux
      By eischmann from Brno hat

      Over a year ago I got my first serious Bluetooth headphones. They worked with Fedora well, they paired, connected, sound was directed to them. Just the sound quality was not overwhelming. I learnt that because of limited bandwidth of Bluetooth a codec with audio compression has to be used. There are quite a few of them to pick from: AAC (very widely supported because it’s the only one iPhone supports, partly freely available), AptX (also very widely supported, but proprietary), AptX-HD (enhanced AptX with a higher bitrate, also proprietary), LDAC (probably the best codec available, highest bitrate, available in Android, supported mostly by Sony devices), MP3 (also possible, but supported by virtually no devices). And also SBC which is a native Bluetooth, first generation compression codec with rather bad sound quality.

      My headphones supported SBC, AAC, AptX, AptX-HD, LDAC, so all the advanced codecs. Sadly on Linux it fallbacked to the basic SBC because no other was available for Bluetooth, and headphones for €200 produced rather underwhelming sound. I mostly listen to music on Spotify. Listening to it on my headphones meant transcoding OGG 320 kbps to SBC and losing a lot of sound quality.

      Then I recalled that Sony released LDAC as open source in the Android Open Source Project. And they really did because you can find libldac released under Apache 2.0 License there. So it could possibly be made available on Linux, too. Bluez was also able to negotiate LDAC with the end device. What was missing was a plugin for PulseAudio that would utilize the codec and encode the stream into LDAC before sending it over Bluetooth to the headphones.

      Today I learnt that such a plugin had been finally created.  And besides LDAC it also supports AAC, AptX, and AptX-HD. Those are patent-protected codecs and the plugin relies on ffmpeg to support them, so it’s not likely they will be available in Fedora any time soon. But libldac is already in Fedora package review and is waiting for the final legal approval. The plugin currently depends on ffmpeg, but if it were made optional, we could at least ship LDAC support by default in Fedora Workstation.

      I thought we could also support AAC because its decoder/encoder is already available in Fedora, but I learnt that it only supported the original AAC format while what devices support these days is HE-AAC which is still protected by patents.

      Anyway, someone already built packages of both the plugin and libldac and I installed them to test it. And it worked on Fedora 29 Workstation, LDAC was used for Bluetooth stream encoding:

      I don’t have bat ears, but I could recognize a difference in sound quality immediately.

      If I’m not mistaken it makes Linux the first desktop system to support LDAC. And with support for other codecs it will make it the OS with the best Bluetooth sound quality support because all other systems support only a subset of the list, hence fewer headphones/speakers at their best sound quality.

  5. Jiří Eischmann (sesivany@mastodon.cloud)'s status on Wednesday, 06-Feb-2019 10:41:11 EST Jiří Eischmann Jiří Eischmann

    I'd really appreciate if The #Apache Software Foundation started acting responsibly and stopped publicly offering #OpenOffice which has not been under active development for years and is insecure. Shut the shop finally down and forward users to #LibreOffice.
    https://securityaffairs.co/wordpress/80695/hacking/libreoffice-openoffice-rce.html

    In conversation Wednesday, 06-Feb-2019 10:41:11 EST from mastodon.cloud permalink

    Attachments

    1. Severe bug in LibreOffice and OpenOffice suites allows remote code execution
      from Security Affairs
      Severe bug in LibreOffice and OpenOffice suites allows remote code execution
  6. Jiří Eischmann (sesivany@mastodon.cloud)'s status on Saturday, 12-Jan-2019 04:32:49 EST Jiří Eischmann Jiří Eischmann
    • GNOME

    📊 10 most downloaded 📹 video #Flatpak apps from #Flathub:
    #VLC 100
    #Kdenlive 37
    #Pitivi 28
    #Shotcut 20
    #OBS Studio 19
    #Gydl 10
    #Openshot 8
    #Minitube 7
    @gnome Mpv 7
    #Avidemux 6
    (relative numbers)

    In conversation Saturday, 12-Jan-2019 04:32:49 EST from mastodon.cloud permalink
  7. Jiří Eischmann (sesivany@mastodon.cloud)'s status on Tuesday, 18-Sep-2018 12:48:42 EDT Jiří Eischmann Jiří Eischmann

    400 applications in #Flathub! I was hoping Evolution would be the 400th, but we're still in the review process.
    Anyway, it's a great achievement for #Flatpak. I think 300->400 was faster than previous hundreds, so looks like the growth is accelerating 👏

    In conversation Tuesday, 18-Sep-2018 12:48:42 EDT from mastodon.cloud permalink
  8. Jiří Eischmann (sesivany@mastodon.cloud)'s status on Wednesday, 29-Aug-2018 06:56:50 EDT Jiří Eischmann Jiří Eischmann
    • GetTogether.Community
    • GNOME

    We're organizing a @gnome 3.30 release party in #Brno next week. Find out more and sign up at @GetTogetherComm: https://gettogether.community/events/163/gnome-330-release-party-in-brno/

    In conversation Wednesday, 29-Aug-2018 06:56:50 EDT from mastodon.cloud permalink

    Attachments

    1. GNOME 3.30 release party in Brno
      A get-together to celebrate the 3.30 release of GNOME. We will meet for a couple of talks and pizza in the Red Hat Lab at FIT VUT campus and then we will continue to a nearby pub for informal chat.
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