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Showing posts from June, 2018

BROADCAST TAPE CONVERSION TO 10BIT UNCOMPRESSED, FFV1, PRO-RES, MOV, MPEG4 DIGITAL FILES

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BROADCAST TAPE CONVERSION TO 10BIT UNCOMPRESSED, FFV1, PRO-RES, MOV, MPEG4 DIGITAL FILES Broadcast Duplication at Oxford Duplication Centre
At Oxford Duplication Centre our digitising and preservation department located in-house and equipped with SVHS, Betacam SP and U-Matic decks can confidentally digitise your preservation broadcast tapes into suitable file formats to include 10bit Uncompressed AVI/MOV files, FFV1 Lossless Compression Files, Pro-Res Lossy Files, H.264 MPEG4 viewing files. Please contact us on 01865 457000 or email cheryl@oxfordduplicationcentre.com for a competitive quotation. Our studio is supported by Window Workstations using Blackmagic devices and dedicated cloud servers to convert your professional broadcast tapes into high quality digital files for either editing purposes or archival preservation. Our servers are industry standard that are used by BBC. So you can guarantee the quality. The benefits of converting your broadcast tapes include archival and space…

EVER HEARD OF AUDIO WIRE RECORDING?

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Oxford Duplication Centre Audio Recording to CD, WAV, AIFF, MP3
SO WHAT IS WIRE RECORDING?
Wire recording or magnetic wire recording was the first early magnetic recording technology. An analog type of audio storage in which a magnetic recording was made on a thin steel wire.
The first crude recorder was invented in 1898 by Danish inventor Valdemar Poulsen.  With the first magnetic audio recorder to be made commercially available anywhere was The Telegraphone, which was manufactured by the American Telegraphone Company in Springfield Massachusetts.

HOW DOES IT WORK?
The wire is pulled rapidly across a recording head which magnetises each point along the wire in accordance with the intensity and polarity of the electrical audio signal being supplied to the recording head at that instant.  
By later drawing the wire across the same or similar head whilst the head is not being supplied with an electrical signal, the varying magnetic field induces a varying electric current in the head recre…

Understanding file sizes (Bytes, KB, MB, GB, TB)

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Understanding file sizes (Bytes, KB, MB, GB, TB)A byte is a sequence of 8 bits. A single letter or character would use one byte of memory (8 bits), two characters would use two bytes (16 bits). Put another way, a bit is either an 'on' or an 'off' which is processed by a computer processor, we represent 'on' as '1' and 'off' as '0'. 8 bits are known as a byte, and it is bytes which are used to pass our information in it's basic form - characters. An alphanumeric character (e.g. a letter or number such as 'A', 'B' or '7') is stored as 1 byte. For example, to store the letter 'R' uses 1 byte, which is stored by the computer as 8 bits, '01010010'. A document containing 100 characters would use 100 bytes (800 bits) - assuming the file didn't have any overhead (additional data about the file which forms part of the file). Note, many non-alphanumeric characters such as symbols and foreign languag…

Comparision between 10-bit Uncompressed and FFV1 Video Archive Preservation at Oxford Duplication Centre

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DISCUSSING FFV1

The most common challenge in digitising moving image is the file sizes that result from the actual digitisation.  The file sizes can be huge and with that comes the increased cost of storage and maintenance for long term preservation.

Common consensus consider 10-bit uncompressed to be the preservation standard for moving image because it uses no file compression. 
It is considered the most reliable safest format for moving image preservation at the current time. 10-bit uncompressed deliver high image resolution, colour quality and sharpness whilst avoiding motion compensation and compression artefacts.



THE DOWNSIDE TO 10-BIT UNCOMPRESSED
1 hour of 10-bit uncompressed video can produce a 100gb file. To put it into perspective it would take 21 DVDs to store a video of this size.  As you can see, its a lot of data!
WHAT IS FFV1?
FFV1
(Full name: FFmpeg Video Codec 1)Contained by‎: ‎AVI‎, ‎MKV‎, ‎MOVLatest release‎: ‎Version 3 (FFV1.3) FFV1 is a video codec developed withi…

HISTORICAL PHOTOGRAPH SCANNING IN OXFORDSHIRE FOR CORPORATE AND PRIVATE CLIENTS UK

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HISTORICAL PHOTOGRAPH SCANNING IN OXFORDSHIRE FOR CORPORATE AND PRIVATE CLIENTS  UK One of the more invaluable services to come out of the information age is the ability to scan original documents and make them available for all to see, as well as store the scanned version of these one-of-a-kind items in a central location, for easy access. Our digital archiving will allow you, your associates, or members of your community to to safely house the originals, preventing damage and degradation to these priceless documents.
SCAN AND STORE HISTORICAL DOCUMENTS DIGITALLY Historical document scanning makes it easy for colleges, libraries, museums and archives to share these precious texts with those who wish to view them. Never before has it been so easy to make these items available to a broader audience, and share the knowledge. No longer are priceless tomes, periodicals and papers regaled to a vaulted storage room for fear of damage. Before your historic, and often quite aged, pieces of the…