Lmst

Noch 2 Tage bis zur Premiere des neuen #Asisi-Panoramas #Antarktis in #Leipzig: Vom ersten Strich zum #Panorama: 10 Jahre zeichnerische Reise > https://www.youtube.com/watch?v=PyRPew4bGgA / #AC3 #AntarcticaInsync #Antarctica #Wolken #Polarforschung

Weekend Backup ( Wordpress / Freescout / Nextcloud ) #ac3

Gleich 2 AC Geburtstage gibt es heute, somit doppeltes Happy Birthday.
Am 30.10.2012 erschien Assassin's Creed 3 & Assassin’s Creed Liberation.
Ratonhnhaké:ton genannt Connor und Aveline de Grandpré führten uns nach Amerika in den 1770er Jahren. #AssassinsCreed3 #AC3 #ACliberation #AssassinsCreedLiberation #AssassinsCreed

Revisiting bsdiff as a tool for digital preservation

by @beet_keeper

I introduced bsdiff in a blog in 2014. bsdiff compares the differences between two files, e.g. broken_file_a and corrected_file_b and creates a patch that can be applied to broken_file_a to generate a byte-for-byte match for corrected_file_b.

On the face of it, in an archive, we probably only care about corrected_file_2 and so why would we care about a technology that patches a broken file?

In all of the use-cases we can imagine the primary reasons are cost savings and removing redundancy in file storage or transmission of digital information. In one very special case we can record the difference between broken_file_a and corrected_file_b and give users a totally objective method of recreating corrected_file_b from broken_file_a providing 100% verifiable proof of the migration pathway taken between the two files.

Continue reading “Revisiting bsdiff as a tool for digital preservation”…

#ac3 #archives #audio #audiovisual #audit #authenticity #av #bash #bsdiff #checksums #code4lib #corruption #corruptionIndex #digipres #digitalArchiving #digitalForensics #digitalLiteracy #digitalPreservation #digitalStorage #diplomatics #fileFormats #glitch #glitchAudio #glitchart #integrity #preservationAnalysis #preservationMetadata #provenance #sensitivityIndex #storage

Image shows two layered waveforms, one a corrupt waveform and the other a good original. The corrupt form is in red and the uncorrupt one is green.

Image shows one corrupted file side-by-side with its non-corrupted partner through the lens of a diff tool. The differences are highlighted on the command line in red and green.

Image shows a hexdump with non-null bytes colorized making it easier to see differences, and ultimately how sparse the data is in the file.

@mias_klimatagebuch Hallo Mia, schön, dass du im Fediverse bist. Wir freuen uns schon auf deine Beiträge. [af] #ac3tr #AC3 #klima #umwelt

Sad news for the #eurovision :eurovision_heart_2025: Grand Final:

My local broadcaster reached out again and told me that the bad audio mix is (at least partly) due to EBU rules. Specifically, the LFE channel isn't allowed to be used in competing songs.

This must be a new rule, since my #ESC2024 :eurovision_heart_2024: recording has full 5.1 audio, even during the acts. Sounds much better in comparison, in my opinion.

I again recommend reaching out to your broadcaster to get that changed at the EBU level for next year. :boosts_encouraged:

#eurovision2025 #ESC2025 #EBU #ESC #eurovision2026 #ESC2026 #AudioEngineering #AC3 #MultichannelAudio #Broadcasters #Television #EurovisionSongContest

Greetings from Denver! This week we are at the American #Meteorological Society #AMS conference for #Polar Meteorology and Oceanography with amazing presentations from #MOSAiC and #AC3 (https://www.ac3-tr.de/).

selfie with people standing in front of scientific posters in poster session in background

Hello fellow #eurovision :eurovision_heart_2025: watchers!

During the first semi-final yesterday, I noticed that the German broadcast had no LFE channel output during the acts, only in-between. Audio mixing of the acts also felt sub-par overall.

Did you experience similar problems with your broadcasters?

#AskFedi #AskFediverse #Europe #Eurovision2025 #ESC2025 #ESC #EBU #AudioEngineering #AC3 #MultichannelAudio #SRGSSR #SRF #ARD #ARDOne #Rundfunk #Broadcasters

Waveform graph of an audio track in Audacity, illustrating an issue with the LFE channel. The vertical axis on the left is labeled for amplitude from -1.0 to 1.0. The horizontal axis represents time. The blue waveform on a light background shows a series of distinct audio patterns. Nine segments are completely quiet, with no amplitude. In contrast, 10 segments show audio with significantly high amplitude peaks.

Yesterday I saw my first #polarlights in Hyytiälä during my Winterschool for #AC3

Was a very nice view, would do again!

Green Polar Lights over a forest, the photo was taken viewing over a frozen lake

Polar lights over a forest, from within the forest

Our #virga sniffer workshop at the joint #IRTG #AC3 #uniHelsinki winter school on causes, contributions and trends to #ArcticAmplification in #Hyytiälä started yesterday with a comprehensive introduction. [af]

A scientist exlains something in front of a screen. Three Phd students listening.

Hallo Helsinki. Gleich geht es weiter zur Winter School in Hyytiälä. #AC3

Der Flughafen in Helsinki aus einem Flugzeug fotografiert.

Two of our group are traveling to Hyytiala, Finland next week for the joint #AC3 Uni Helsinki #IRTG winter school on 'Causes, contributions, and trends to #Arctic Amplification'. We are offering a seminar on the use of the #virga detection tool. [af]

Example image of a nice virga. Snow covered landscape, mountains, virga and clouds. Some houses on the left.

The sensitivity index: Corrupting Y2K

by @beet_keeper

In December I asked “What will you bitflip today?” Not long after, Johan’s (@bitsgalore) Digtial Dark Age Crew released its long lost hidden single Y2K — well, I couldn’t resist corrupting it.

Fixity is an interesting property enabled by digital technologies. Checksums allow us to demonstrate mathematically that a file has not been changed. An often cited definition of fixity is:

Fixity, in the preservation sense, means the assurance that a digital file has remained unchanged, i.e. fixed — Bailey (2014)

It’s very much linked to the concept of integrity. A UNESCO definition of which:

The state of being whole, uncorrupted and free of unauthorized and undocumented changes.

Integrity is massively important at this time in history. It gives us the guarantees we need that digital objects we work with aren’t harboring their own sinister secrets in the form of malware and other potentially damaging payloads.

These values are contingent on bit-level preservation, the field of digital preservation largely assumes this; that we will be able to look after our content without losing information. As feasible as this may be these days, what happens if we lose some information? Where does authenticity come into play?

Through corrupting Y2K, I took time to reflect on integrity versus authenticity, as well as create some interesting glitched outputs. I also uncovered what may be the first audio that reveals what the Millennium Bug itself may have sounded like! Keen to hear it? Read on to find out more.

Continue reading “The sensitivity index: Corrupting Y2K”…

#ac3 #archives #audio #audiovisual #authenticity #av #bash #checksums #code4lib #corruption #corruptionIndex #digipres #digitalArchiving #digitalLiteracy #digitalPreservation #diplomatics #fileFormats #flac #glitch #glitchart #glitchaudio #integrity #mp3 #sensitivityIndex #wav

Image showing a hugely glitched file in Audacity. The waveforms should largely be the same in both stereo channels but they are not.

A snippet of audio as shown in Audacity. The image shows the audio's waveform and spectograph.

How to restore Dolby Digital (AC-3) support in Windows 11 24H2 #Windows11 #Dolby #AC3 neowin.net/guides/how-to-resto…

Big heavy box from Japan arrived yesterday. I wanted to pick up a couple of #AC3 #laserdisc & some odd films for fun. #ld

Watching #starwarsphantommenace on #laserdisc. The #ac3 #thx is awesome! The rest of the film, not so much, lol.

¡Actualización MASIVA de decodificadores de #audiodigital, de #AIMP para #Windows!

• #AAC / #M4A ( #FAAC):
https://www.aimp.ru/?do=catalog&rec_id=1308

• AAC ( #Fraunhofer #FDK):
https://www.aimp.ru/?do=catalog&rec_id=1309

• AAC ( #Nero):
https://www.aimp.ru/?do=catalog&rec_id=1310

• AAC ( #QuickTime):
https://www.aimp.ru/?do=catalog&rec_id=1311

• #AC3 ( #Aften #A52 / #A_52):
https://www.aimp.ru/?do=catalog&rec_id=1305

• #ALAC ( #refalac):
https://www.aimp.ru/?do=catalog&rec_id=1312

• #DTS ( #dcaenc):
https://www.aimp.ru/?do=catalog&rec_id=1307

• #OGG ( #aoTuv #oggenc):
https://www.aimp.ru/?do=catalog&rec_id=1306

#Audio #Códec #Códecs

AC-3 (#DolbyDigital) codec no longer included with #Windows11 version #24H2 #AC3
https://www.elevenforum.com/t/ac-3-dolby-digital-codec-no-longer-included-with-windows-11-version-24h2.25597/

Assassin's Creed 3 continues to be an uncharitable game with enemy placement and optional goals. I've gotten frustrated several times with the situations it forces on me. However, I overcame most with a few desyncs per encounter.

I don't understand why they made it so enemies could chain attacks that need to be blocked! Paired with swarms of enemies it makes for an annoying, time-wasting melee encounter. Some of the tools I unlocked helped mitigate this annoyance, at least.

#gaming #AC3

KTOWN: live ISO with Plasma6 Alpha. Also, chromium now supports HEVC/AC3 playback

I have uploaded a 5 GB ISO file containing a new KTOWN variant of Slackware Live. This is the KDE Plasma6 Alpha release. Play around with it and perhaps you will be able to contribute to an improved Beta by finding a

https://alien.slackbook.org/blog/ktown-live-iso-with-plasma6-alpha-also-chromium-now-supports-hevc-ac3-playback/

#Slackware #Software #ac3 #chromium #hevc #iso #kde #liveslak #mp4 #plasma #ungoogled

#ac3

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