General requirements for digital moving image records: This category includes two subcategories: digital cinema which encompasses digitized film and digital video (including both video digitized from analogue sources and born digital video). ISO/IEC 13818-3:1995 Information technology – Generic coding of moving pictures and associated audio information – Part 3: Audio:ĭigital moving images consist of bitmap digital images or “frames” displayed in rapid succession at a constant rate, giving the appearance of movement. ISO/IEC-11172-3 Information technology – Coding of moving pictures and associated audio for digital storage media at up to about 1.5 Mbit/s – Part 3: Audio: Transfer digital audio at a minimum sample rate of at least 44.1 KHz, but sampling at 96 KHz is encouraged.Īudio Interchange File Format: 'AIFF' A Standard for Sampled Sound Files Version 1.3.Transfer digital audio at a minimum of 16 bits per sample, but 24 bits per sample is encouraged and.

Examples of appropriate methods and formats are available on NARA’s Digitization Services Products and Services page

Digitize to standards appropriate for the accurate preservation of the original audio, when converting analog material (e.g., audio cassettes, record albums, and reel-to-reel audio tapes).

General requirements for digital audio records: Digital audio formats are generally composed of both a wrapper format, usually the common name associated with the file extension, and an encoding method or codec. The Digital audio category encompasses formats used to encode recorded sound as machine readable files by converting acoustic sound waves into digital signals.

4th edition (June 2007):Īcrobat 3D PRC Specification (Version 7094):

ISO 24517-1:2008 Document management - Engineering document format using PDF - Part 1: Use of PDF 1.6 (PDF/E-1): Portable Document Format/Engineering (PDF/E)

Stadard apple video format