# Data Mosh and Glitch [Wikipedia](https://en.wikipedia.org/wiki/Glitch_art) ( Type: Technique ) ## Description Notes on datamoshing — corrupting or manipulating compressed video codec structure (I/P/B frames) to produce visual artifacts — and on the broader history and theory of glitch art as an aesthetic and critical practice. ## Key Tags #glitch #datamoshing #video-compression ## Essential Works - [Rosa Menkman, "Glitches vs. Glitch Art"](http://rosa-menkman.blogspot.com/2010/04/glitches-vs-glitch-art.html) - blog post distinguishing accidental "glitches" from intentional "glitch art," cited directly in these notes ## Details %% none yet %% ### Concepts and Theories %% none yet %% ### Related Practices %% none yet %% ### Key Practitioners - [[Nam June Paik]] - part of the pre-history of new media/glitch practice noted here (early video signal manipulation) - [[Michael Betancourt]] - theorist and critic whose writing on glitch art informs the field's critical framing ### Institutional Affiliations %% none yet %% ### Notes boring: structure/corruption of structure many kinds of glitch, methodology: mp4 > datamosh mpeg: moving picture export group, low bit rate, compression for efficiency, 1994 codec (h.264) inside container (MP4) containers tend to be proprietary codec: decoder and encoder container: contains - video - audio - captioning - metadata header > video stream (packets or chunks) moshing operates on stream packets, NOT header, etc. ![[wtkns/Attachments/images/Pasted image 20220421114551.png]] iframe . pframe . bframe iframe i frames are actual frames p frames are predictive b frames (bi directional) accounts for previous and following frames (motion vectors, macro block prediction) ![[wtkns/Attachments/images/Pasted image 20220421114752.png]] Slice > blocks What is Glitch? - breaking hierarchy of file/framework - moment when things break down - not working properly - not lining up - block or tensions that needs to release and resync - irregulaity - disconnection What is glitch Art? engaging with ideals of art - ideological disruption fashion aesthetic protest form of resistance unpredictability and using the lack of control (natural vs inducted) glitch brief history of glitch SAIC aesthetics lifestyle jonCates resists definitions arcanebolt Paul Hertz predictable misbehavior ejects the subject from immersive experience inside the network nick Briz leveraging the moment of the glitch (an approach) lal Avgen jmaes connolly naim june paik fluxus dara birnbaum ryral and Eve Phil Morton pre-history of new media dmaging or misusing the media sonya sheridan (photocopier) experiments with the machinery itself rosa menckman live chicago/amsterdam/mexico city GLI.TC/h festivals school department Phil Morton boost literacy JODI Showry Taylor cleveland cory arcangel david lewandowski not explicitly political explicitly unstable already compromised glitch is platform of sharing participatory group outside of network digital literacy "their tools, our rules" act of resistance as a practice rosa menckman collapse of PAL (2010-2012) analog video encoding memorial live AV performance methodology/workflow analog signal aesthic determined from format self portrait criticizing how digital environment AFFECTS us (emotionally) nick briz new ecology for citizen of digital age positionality (analog > early digital > ) http://rosa-menkman.blogspot.com/2010/04/glitches-vs-glitch-art.html #### data bending rest > motion Projection behind still pose? placement on screen mp4 file > audacity > file > import > as raw data change encoding: A LAW export as audio > set container mp4 (change filename to mp4) other/uncompressed file header is RAW (headerless) encoding is A-Law add metadata top of video cleaner, bottom glitchier (invert video?) black and white can start to generate color vlc can open destabilized file (fix) text glitches well tnkrt vimeo ## References ### Primary Sources Bibliography Menkman, Rosa. "Glitches vs. Glitch Art." *Rosa Menkman* (blog), 4 Apr. 2010, rosa-menkman.blogspot.com/2010/04/glitches-vs-glitch-art.html. ### Secondary Sources Bibliography %% none yet %%