Tag: encoding

Developments in Digital Video Preservation – CELLAR

We are living in interesting times for digital video preservation (we are living in interesting times for other reasons too, of course). For many years digital video preservation has been a confusing area of audiovisual archiving. To date there is no settled standard that organisations, institutions and individuals can unilaterally adopt. As Peter Bubestinger-Steindl argues,… Continue reading Developments in Digital Video Preservation – CELLAR

Codecs and Wrappers for Digital Video

In the last Greatbear article we quoted sage advice from the International Association of Audiovisual Archivists: ‘Optimal preservation measures are always a compromise between many, often conflicting parameters.’ [1] While this statement is true in general for many different multi-format collections, the issue of compromise and conflicting parameters becomes especially apparent with the preservation of… Continue reading Codecs and Wrappers for Digital Video

Parsimonious Preservation – (another) different approach to digital information management

We have been featuring various theories about digital information management on this blog in order to highlight some of the debates involved in this complex and evolving field. To offer a different perspective to those that we have focused on so far, take a moment to consider the principles of Parsimonious Preservation that has been… Continue reading Parsimonious Preservation – (another) different approach to digital information management

Measuring signals – challenges for the digitisation of sound and video

In a 2012 report entitled ‘Preserving Sound and Moving Pictures’ for the Digital Preservation Coalition’s Technology Watch Report series, Richard Wright outlines the unique challenges involved in digitising audio and audiovisual material. ‘Preserving the quality of the digitized signal’ across a range of migration processes that can negotiate ‘cycles of lossy encoding, decoding and reformatting… Continue reading Measuring signals – challenges for the digitisation of sound and video

Delivery formats – to compress or not compress

After we have migrated your analogue or digital tape to a digital file, we offer a range of delivery formats. For video, using the International Association of Sound & Audiovisual Archives Guidelines for the Preservation of Video Recordings, as our guide, we deliver FFV1 lossless files or 10-bit uncompressed video files in .mkv or QuickTime… Continue reading Delivery formats – to compress or not compress

Convert, Join, re encode AVCHD .MTS files in Ubuntu Linux

One of our audio and video archive customers has a large collection of AVCHD video files that are stored in 1.9GB ‘chunks’ as xxxxx.MTS files. All these files are of 60 minute and longer duration and must be joined, deinterlaced, re encoded to a suitable size and bitrate then uploaded for online access. This is… Continue reading Convert, Join, re encode AVCHD .MTS files in Ubuntu Linux

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