The translation of this document is outdated.
Translation validity: 01.07.2012.–06.05.2016.
Amendments not included:
03.05.2016.
|
Republic
of Latvia
Cabinet
Regulation No. 143
Adopted 28 February 2012
|
Procedures for
Converting Public Records into Electronic Form
Issued pursuant
to
Section 9, Paragraph two
of the Law On Archives
1. General
Provisions
1. This Regulation prescribes the procedures by which public
records shall be converted into electronic form for storage in
the electronic environment, the technical requirements for
conversion, as well as the procedures by which the obtained
records shall be stored and the public records converted into
electronic form for storage in the electronic environment
(hereinafter - converted public records) shall be destroyed.
2. The following terms are used in this Regulation:
2.1. digital object - electronically created data, which
contain information of a public record;
2.2. checksum (hash total) - a string of unique symbols, which
provides integrity testing;
2.3. separate segment - computers, server equipment,
information media, data transmission networks, which are physical
or logical (software, firewall or settings of data transmission
network equipment) separated from other hardware, concurrently
using at least two different information encryption algorithms
(for example, AES256, Serpent or Twofish);
2.4. original form - the initial representation of a public
record prior to conversion into electronic form;
2.5. package - an electronically created folder, which is
intended for the insertion of digital objects, metadata,
checksums and the obtained record;
2.6. conversion hardware - aids which are used in conversion
process of a public record, for example, workstations, server
equipment, information media, data transmission networks.
2. Public
Record Conversion Process and Technical Requirements
2.1. Public
Record Conversion Process
3. The conversion of a public record into electronic form for
storage in the electronic environment (hereinafter - conversion
process) shall be implemented by the National Archives of Latvia
(hereinafter - Archives) or institutions within the meaning of
the Law On Archives.
4. The conversion process shall consist of the following
stages:
4.1. preparation of a public record for conversion;
4.2. creation of a digital object;
4.3. creation of a record for storage in electronic form.
5. The conversion stages referred to in Paragraph 4 of this
Regulation shall be documented, indicating the metadata referred
to in Annex 1 to this Regulation.
2.2.
Preparation of a Public Record for Conversion
6. Prior to conversion of public records the institution shall
co-ordinate the records intended for destruction with the
Archives, submitting descriptions thereof or extracts of
descriptions, in which the record files intended for destruction
are indicated. If the records have not been described, the
institution shall indicate the following information regarding
the record:
6.1. file nomenclature index (if any);
6.2. title;
6.3. retention period;
6.4. number of volumes.
7. When preparing public records for conversion, the following
shall be evaluated:
7.1. the existence of each record in the finding aid of the
institution;
7.2. the suitability of the original form of each record for
conversion into electronic form for storage in the electronic
environment;
7.3. the suitability of the conversion process method for the
relevant type of public record and the specific characteristics
thereof, observing the requirements referred to in Annex 2 to
this Regulation;
7.4. the compliance of the public record to be converted with
the metadata referred to in Paragraph 1 of Annex 1 to this
Regulation.
8. A public record shall not be converted, if:
8.1. the specific characteristics of the public record prevent
identification of the content thereof (for example, colour,
shade, sharpness, damage);
8.2. a conversion method in compliance with the requirements
referred to in Annex 2 to this Regulation is not available.
9. A package shall be created for the conversion of a public
record.
10. Metadata shall be included in the package in accordance
with Paragraphs 1 and 2 of Annex 1 to this Regulation and it
shall be checked whether they are complete and unchanged. If the
metadata indicated in Paragraph 1 of Annex 1 to this Regulation
are in paper record registration journals, they may be converted
into electronic form, and a reference may be inserted in each
package to the paper record registration journal.
11. After inserting data in a package it shall be stored in at
least two separate segments.
2.3. Creation
of a Digital Object
12. When commencing the creation of a digital object, the
conversion hardware shall be checked, and it shall be ascertained
that:
12.1. conversion hardware in the conversion process ensures
storage of backup copies of the digital object, metadata and
checksum in several separate segments for public records with
long-term retention period and for records to be retained
permanently;
12.2. checks of the operation, maintenance and conformity of
conversion hardware is performed and documented in accordance
with the specifications and time periods specified by the
manufacturer, but not less than once every two years.
13. A digital object shall be created, using the conversion
method selected for the relevant type of record and recording the
identifying metadata of the creation process of the digital
object in accordance with Paragraph 3 of Annex 1 to this
Regulation.
14. For each digital object:
14.1. checksums shall be created, using at least two separate
algorithms for creating checksums (for example, SHA2,
CRC32 with a key length not less than 32 bits);
14.2. user access rights shall be specified;
14.3. provision shall be made for the use of additional
security measures, if the relevant security methods comply with
the format selected in accordance with Annex 2 to this Regulation
(for example, the JPEG 2000 (JPSEC) format);
14.4. automatic adding of system date and time shall be set up
and stored (with a precision of up to 1 second);
14.5. the metadata referred to in Paragraph 13 of this
Regulation shall be appended.
15. It is prohibited to make irreversible changes or
adjustments to a digital object during the conversion process.
Only reversible changes shall be allowed (for example, change in
orientation and increasing contrast in order to improve the
legibility of fading text), ensuring the possibility to return
the digital object to its original form after conversion process
has been completed.
16. The digital object shall be complete and unchanged, if it
is possible to identify the public record by the content and
structure of the digital object and the metadata referred to in
Paragraph 3 of Annex 1 to this Regulation have been appended.
17. If the digital object does not comply with the
requirements referred to in Paragraph 16 of this Regulation, its
creation shall be recommenced in accordance with Paragraphs 12,
13, 14, 15 and 16 of this Regulation.
2.4. Creation
of a Record for Storage in Electronic Form
18. In order to create a record for storage in electronic
form, the digital object, checksums and the metadata referred to
in Paragraph 4 of Annex 1 to this Regulation shall be appended to
the package (hereinafter - obtained record).
19. The integrity of the package shall be ensured, if it
complies with the requirements referred to in Paragraphs 10 and
16 of this Regulation.
3. Storage of
Obtained Records and Destruction of the Converted Public
Records
20. Obtained records shall be stored in the formats referred
to in Annex 2 to this Regulation and in accordance with the
requirements referred to in the regulatory enactments regarding
the storage of electronic records.
21. Prior to destruction of converted public records the
institution shall submit to the Archives a record destruction
deed and a list in xml or txt format for co-ordination. The
filename of the obtained records, checksums and file reference
numbers or reference codes in the finding aid shall be included
in the list.
22. The Archives shall verify the compliance of obtained
records and the conversion process with this Regulation and the
provisions of Section 9, Paragraph one of the Law On Archives and
shall co-ordinate the record destruction deed or take a decision
to refuse co-ordination.
23. Converted temporary public records (with long-term
retention period) and converted public records of long-term
retention shall be destroyed after description of the obtained
records.
24. If the described record file converted into electronic
form for storage in the electronic environment is destroyed, a
note shall be made, indicating the reference code of the obtained
record. The number of the destroyed file shall be indicated in
the summary of the description.
4. Closing
Provisions
25. Public records, which have been converted into electronic
form for storage in the electronic environment prior to this
Regulation coming into force, shall be recognised as obtained
records, if the conversion process thereof has been performed in
accordance with the provisions of Section 9, Paragraph one of the
Law On Archives.
26. This Regulation shall come into force on 1 July 2012.
Prime Minister V. Dombrovskis
Minister for Culture Ž.
Jaunzeme-Grende
Annex 1
Cabinet
Regulation No. 143
28 February 2012
Metadata for
Conversion of Public Records into Electronic Form and Storage in
the Electronic Environment
|
No
|
Name of metadata elements
|
Explanation of metadata
elements
|
Requirement
|
Data type
|
Attributable level of
description
|
Examples
|
|
1.
|
During the stage - preparation of a public record for
conversion - the following metadata shall be indicated:
|
|
|
|
|
|
|
1.1.
|
name of the institution
|
full official name of the institution without
abbreviation
|
compulsory
|
string of symbols*
|
file, item
|
Ministry of Justice, National Archives of Latvia
|
|
1.2.
|
identifier of the institution
|
registration number of the institution or taxpayer,
which converts public records into electronic form
|
compulsory
|
string of numbers**
|
file, item
|
40003123414; 50003021241
|
|
1.3.
|
reference code for the file
|
file index in the file nomenclature, code and number in
the description or in the accounting list
|
compulsory
|
string of symbols*
|
file, item
|
Xyz
|
|
1.4.
|
reference code of the record
|
sequential number of the record in file, files in the
volume or package or another unique identifier
|
compulsory
|
string of symbols*
|
item
|
123654-abc, abcd-aderfsds; 123456-12345
|
|
1.5.
|
name of the record
|
name of the record
|
compulsory
|
string of symbols*
|
item
|
order regarding business trip, minutes of a management
meeting
|
|
1.6.
|
type of the record
|
for example, order, letter, contract
|
compulsory
|
string of symbols*
|
item
|
order, letter, contract
|
|
1.7.
|
date of the record
|
date when the record was signed
|
compulsory
|
string of symbols*
|
item
|
31.08.2001.
|
|
1.8.
|
author of the record
|
the institution or private individual, which created the
record
|
compulsory
|
string of symbols*
|
item
|
Jānis Siders
|
|
1.9.
|
keywords
|
word or group of words used for specifying the content
of a text or record and for locating it
|
optional
|
string of symbols*
|
file, item
|
order regarding business trip to Spain, Jānis Bērziņš,
Pēteris Ivanovs, BAAC conference
|
|
1.10.
|
reference to the hybrid file
|
reference to the file formed by records in different
media, for example, records in paper form and electronic
records
|
if applicable
|
yes/no
|
item
|
yes/no
|
|
1.11.
|
person responsible for the management of records
|
given name, surname of the person
|
compulsory
|
string of symbols*
|
file, item
|
Jānis Smildziņš, Dace Ivanova
|
|
1.12.
|
addressee
|
natural person or legal person, State administrative
institution, to which the record was sent
|
if applicable
|
string of symbols*
|
item
|
Director of the National Archives of Latvia
|
|
1.13.
|
date when the record was sent
|
date when the record was sent in the format
dd.mm.yyyy
|
if applicable
|
date
|
item
|
31.12.2012.
|
|
1.14.
|
date when the record was received
|
date when the record was received in the format
dd.mm.yyyy
|
if applicable
|
date
|
item
|
31.12.2012.
|
|
1.15.
|
links of the record with related records
|
links of the public record with related records
|
if applicable
|
string of symbols*
|
item
|
xyz-123872
|
|
1.16.
|
language of the record
|
language, in which the record has been drawn up in
accordance with Standard LVS ISO 639-2. Codes for the
representation of names of languages. Part 2: Alfa-3
code
|
optional
|
classification
|
item
|
LAT, EST, ENG, RUS according to the classifier
|
|
2.
|
Regarding the initial form of the record during the
stage - preparation of a public record for conversion - the
following metadata shall be indicated:
|
|
|
|
|
|
|
2.1.
|
environment of the record
|
provide information regarding whether the record is, for
example, on paper, magnetic tape, film
|
compulsory
|
string of symbols*
|
item
|
paper, film, magnetic tape
|
|
2.2.
|
dimensions of the record
|
format (dimensions) of the record in measurement units
of the SI system
|
compulsory
|
string of symbols*
|
item
|
width, length, height, duration of the recording
|
|
2.3.
|
specific characteristics
|
characteristics, which influence conversion of the
record into electronic form
|
where applicable
|
string of symbols*
|
item
|
sewn, record with an embossed stamp, double sided
record
|
|
2.4.
|
comments of check
|
information identified during the conversion of the
public record, which is not included in the metadata
referred to in Sub-paragraphs 2.1, 2.2 and 2.3 of this
Annex
|
optional
|
string of symbols*
|
item
|
brown liquid spilt on page 4, torn record
|
|
3.
|
The following metadata shall be indicated during the
creation of a digital object:
|
|
|
|
|
|
|
3.1.
|
the person or official responsible for the conversion
process
|
given name, surname of the person
|
compulsory
|
string of symbols*
|
item
|
Jānis Bērziņš, manager of IT Section
|
|
3.2.
|
user access rights
|
given name, surname of the user who has access rights to
the digital object with the possibility of supplementing
data
|
compulsory
|
string of symbols*
|
file, item
|
Jānis Kalniņš, IT specialist
|
|
3.3.
|
type of conversion device
|
type of device, by means of which the conversion of
records into electronic form is ensured
|
compulsory
|
string of symbols*
|
item
|
digital camera, film scanner, flatbed scanner,
microfilm/microfiche scanner
|
|
3.4.
|
name of the conversion device
|
name of the device according to the documentation of the
manufacturer, by means of which conversion of records into
electronic form is ensured
|
compulsory
|
string of symbols*
|
item
|
ScanMaker 1000XL, Plustek 7300
|
|
3.5.
|
software version of the conversion device
|
software version of the device according to the
documentation of the manufacturer, by means of which
conversion of records into electronic form is ensured
|
compulsory
|
string of symbols*
|
item
|
SilverFast MicrotekSDK (Vers. 6.6.2r2), Plustek ScanPlus
Power 6000
|
|
3.6.
|
date of the last check of the conversion device
|
date of the last successful check of operation of the
device in the format dd.mm.yyyy in accordance with the
documentation of the manufacturer, by means of which
conversion of records into electronic form is ensured
|
compulsory
|
date
|
item
|
31.12.2012.
|
|
3.7.
|
operating system
|
programme complex, which manages data organisation and
execution of programmes in the computer, ensures
collaboration between the hardware and software, rational
use of resources, as well as co-operation with the user
|
compulsory
|
string of symbols*
|
item
|
MS Windows 7, MS Windows XP Service Pack 3
|
|
3.8.
|
name of the software application
|
name of the programme, by means of which conversion of
records into electronic form is ensured
|
compulsory
|
string of symbols*
|
item
|
Adobe PhotoShop CorelDraw
|
|
3.9.
|
version of the software application
|
software application release version, by means of which
conversion of records into electronic form is ensured
|
compulsory
|
string of symbols*
|
item
|
Adobe CS5, Corel Graphic Suite X5
|
|
3.10.
|
format of the digital object to be converted
|
initial format of the digital object file, which has
been obtained by converting records into electronic form.
Other file formats may be obtained from the initial file in
order to ensure storage and retrieval of records
|
compulsory
|
string of symbols*
|
item
|
tiff, ogg, jpg2000
|
|
3.11.
|
format version of the digital object to be converted
|
standard issue version of the format of the digital
object to be converted
|
compulsory
|
string of symbols*
|
item
|
TIFF 6.0, JPEG2000, PDF 2.0
|
|
3.12.
|
format of the digital object to be stored
|
format of the digital object, in which the digital
object is stored
|
compulsory
|
string of symbols*
|
item
|
tiff, ogg, jpg2000
|
|
3.13.
|
format version of the digital object to be stored
|
standard issue version of the format of the digital
object to be stored
|
compulsory
|
string of symbols*
|
item
|
TIFF 6.0, JPEG2000, PDF 2.0
|
|
3.14.
|
conversion hardware
|
workstations, server installations, information media,
data transmission networks to be used for public record
conversion process
|
compulsory
|
string of symbols*
|
item
|
Intel CoreDuo 2,4 GHz, GeForce GT 545/GDDR 5,
TurtleBeach Montego
|
|
3.15.
|
encryption algorithms
|
algorithm, which ensures the content of information
against unsanctioned use
|
compulsory
|
string of symbols*
|
item
|
ECOH, SHA-3, AES256, Serpent
|
|
3.16.
|
date of creation of the digital object to be
converted
|
initial creation date of the digital object format in
the format dd.mm.yyyy.
|
compulsory
|
date and time
|
item
|
31.12.2012.
|
|
3.17.
|
date of creation of the digital object to be stored
|
creation date and time of the storage format of the
digital object in the format dd.mm.yyyy., hh.mm.ss
|
compulsory
|
date and time
|
item
|
31.12.2012., 16:59:59
|
|
3.18.
|
date of correcting the digital object to be
converted
|
date and time in the format dd.mm.yyy., hh.mm.ss when
corrections of the digital object have been made prior to
storing it for long-term storage
|
compulsory
|
date and time
|
item
|
31.12.2012., 17:00:01
|
|
3.19.
|
name of the digital object
|
reference code and sequential number of the file of the
converted public record
|
compulsory
|
string of symbols*
|
item
|
xyz-123654-abc
|
|
3.20.
|
size of the digital object
|
size (MB) of the digital object
|
compulsory
|
string of symbols*
|
item
|
16.56 MB
|
|
4.
|
During the stage - creation of a record for storage in
electronic form - the following metadata shall be
indicated:
|
|
|
|
|
|
|
4.1.
|
reference to the checksum
|
location of the checksum file in the package
|
compulsory
|
string of symbols*
|
item
|
../xyz/xyz-123654-abc.sha
|
|
4.2.
|
reference to the accounting records
|
reference code of the registration journal package, in
which the record is registered
|
if applicable
|
string of symbols*
|
item
|
S1_L84_D2; LNA_LVA_F266_S2_L104_D1
|
Notes.
1. * String of symbols in accordance with UTF-8 encoding.
2. ** Long integer.
Minister for Culture Ž.
Jaunzeme-Grende
Annex 2
Cabinet
Regulation No. 143
28 February 2012
Types, Devices,
Data Formats and Method for Conversion of Public Records into
Electronic Form and Storage in the Electronic Environment
|
No.
|
Type of the record
|
Environment/medium
|
Conversion process
|
Obtained record
|
|
conversion method
|
conversion devices
|
conversion format
|
minimum conversion
parameters
|
storage format
|
minimum storage
parameters
|
|
1.
|
Text records
|
|
|
|
|
|
|
|
1.1.
|
in paper form with black and white printed text
|
Scanning
|
Scanners
|
PDF (Portable Document Format)/ PDF/A
|
Colour depth - 8 bits/points
Number of colour channels - 1 (Grayscale
specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4*
|
PDF/A (Portable Document
Format - Archival)
|
Colour depth - 8 bits/points
Number of colour channels - 1 (Grayscale
specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4*
|
|
1.2.
|
in paper form with black and white printed text
|
Scanning/ photography
|
Scanners/ photo cameras
|
TIFF (Tagged Image File Format)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
TIFF (Tagged Image File Format)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
|
1.3.
|
in paper form with colour printed text
|
Scanning
|
Scanners
|
PDF (Portable Document Format)/ PDF/A
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
PDF/A (Portable Document
Format - Archival)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
|
1.4.
|
in paper form with colour printed text
|
Scanning/ photography
|
Scanners/ photo cameras
|
TIFF (Tagged Image File Format)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
TIFF (Tagged Image File Format)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
|
1.5.
|
in paper form with graphic elements
|
Scanning/ photography
|
Scanners/ photo cameras
|
JPEG (Joint Photographic Experts Group)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
JPEG (Joint Photographic Experts Group)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
|
1.6.
|
in paper form with graphic elements
|
Scanning/ photography
|
Scanners/ photo cameras
|
TIFF (Tagged Image File Format)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
TIFF (Tagged Image File Format)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
|
1.7.
|
in paper form with graphic elements
|
Scanning/photography
|
Scanners/photo cameras
|
TIFF (Tagged Image File Format)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
JPEG 2000
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
|
1.8.
|
in paper form with graphic elements
|
Scanning/photography
|
Scanners/photo cameras
|
PNG
(Portable Network Graphics)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
PNG (Portable Network Graphics)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
|
2.
|
Cartographic records
|
|
|
|
|
|
|
|
2.1.
|
in paper form
|
Scanning/ photography
|
Scanners/ photo cameras
|
TIFF (Tagged Image File Format)
|
Colour depth - 8 bits/points
Number of colour channels - 3 ( RGB specification)
Resolution - 300 dpi or ≥ 32 Mpix/A2
|
TIFF (Tagged Image File Format)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 32 Mpix/A2
|
|
3.
|
Photo-records
|
|
|
|
|
|
|
|
3.1.
|
paper/film
|
Scanning/ photography
|
Flatbed or specialised negative scanners/ photo
cameras
|
JPEG (Joint Photographic Experts Group)
|
Colour depth - 8 bits/points
Number of colour channels - 3 ( RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
JPEG (Joint Photographic Experts Group)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
|
3.2.
|
paper/film
|
Scanning/ photographing
|
Flatbed or specialised negative scanners/ photo
cameras
|
TIFF (Tagged Image File Format)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
TIFF (Tagged Image File Format)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
|
3.3.
|
paper/film
|
Scanning/ photography
|
Flatbed or specialised negative scanners/ photo
cameras
|
JPEG2000
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
JPEG2000
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
|
3.4.
|
paper/film
|
Scanning/ photography
|
Flatbed or specialised negative scanners/ photo
cameras
|
PDF/A
(Portable Document Format - Archival)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
PDF/A (Portable Document
Format - Archival)
|
Colour depth - 8 bits/points
Number of colour channels - 3 (RGB specification)
Resolution - 300 dpi or ≥ 8 Mpix/A4
|
|
4.
|
Audio documents
|
|
|
|
|
|
|
|
4.1.
|
magnetic tape or record
|
Recording - sound signal conversion - capture
|
tape recorders for 6.25 mm magnetic tape/ record
players/computer sound cards
|
PCM WAVE (Pulse Code Modulation - Waveform Audio File
Format)
|
encoding step - 16 bits, amplification frequency - 44.1
kHz
|
OGG (PCM Speex, FLAC)
|
16 bit; 44.1 kHz
|
|
4.2.
|
magnetic tape or record
|
Recording - sound signal conversion - capture
|
tape recorders for 6.25 magnetic tape / record players/
computer sound cards/computer sound cards
|
PCM WAVE (Pulse Code Modulation - Waveform Audio File
Format)
|
encoding step - 16 bits, amplification frequency - 44.1
kHz
|
PCM WAVE
(Pulse Code Modulation - Waveform Audio File Format)
|
16 bit; 44.1 kHz
|
|
5.
|
Audiovisual records
|
|
|
|
|
|
|
|
5.1.
|
35 mm, 16 mm, 8 mm films, VHS, Hi8, Betamax
|
Recording - moving images and sound signal conversion -
capture
|
35 mm, 16 mm, 8 mm projectors/VHS tape recorders/
digital video cameras
|
DV (Digital Video)
|
For video stream:
resolution - 720 x 576 points, colour system - PAL,
number of frames per second - 25, data transfer rate - 25
Mbits/s
For audio stream:
format - PCM WAVE, encoding step - 16 bits,
amplification frequency - 48 kHz, number of channels - 2
(Stereo)
|
DV (Digital Video)
|
For video stream:
resolution - 720 x 576 points, colour system - PAL,
number of frames per second - 25, data transfer rate - 25
Mbits/s
For audio stream:
format - PCM WAVE, encoding step - 16 bits,
amplification frequency - 48 kHz, number of channels - 2
(Stereo)
|
|
5.2.
|
35 mm, 16 mm, 8 mm films, VHS, Hi8, Betamax
|
Recording - moving images and sound signal conversion -
capture
|
35 mm, 16 mm, 8 mm projectors/VHS tape recorders/
digital video cameras
|
MPEG
(Layer-4) (Moving Pictures Experts Group)
|
For video stream:
resolution - 720 x 576 points, colour system - PAL,
number of frames per second - 25, data transfer rate ≥ 4
Mbit/s
For audio stream:
format - Mpeg Layer 1/2, encoding step - 16 bits,
amplification frequency - 48 kHz, number of channels - 2
(Stereo), data transfer rate ≥ 192 Kbit/s
|
(Layer-4) (Moving Pictures Experts Group)
|
For video stream:
resolution - 720 x 576 points, colour system - PAL,
number of frames per second - 25, data transfer rate ≥ 4
Mbit/s
For audio stream:
format - Mpeg Layer 1/2, encoding step - 16 bits,
amplification frequency - 48 kHz, number of channels - 2
(Stereo), data transfer rate ≥ 192 Kbit/s
|
|
5.3.
|
IMAX, 70 mm, 35 mm, films
|
Recording - moving images and sound signal conversion -
capture
|
IMAX, 70 mm, 35 mm, 16 mm projectors/digital movie
cameras
|
Motion JPEG 2000
|
For video stream:
Resolution ≥ 2 K (2048 x 1080) points
Colour system - PAL/NTSC
Number of frames per second - from 24 to 48
For audio stream:
format - (*.bwf) (Broadcast Wave), encoding step - 24
bits, amplification frequency - from 48 to 96 kHz Stereo,
number of channels - 2 (Stereo), data transfer rate ≥ 128
Kbit/s
|
Motion JPEG 2000
|
For video stream:
Resolution ≥ 2 K (2048 x 1080) points
Colour system - PAL/NTSC
Number of frames per second - from 24 to 48
For audio stream: format - (*.bwf) (Broadcast Wave),
encoding step - 24 bits, amplification frequency - from 48
to 96 kHz Stereo, number of channels - 2 (Stereo), data
transfer rate ≥ 128 Kbit/s
|
Note. * Mpix/A4 - million pixels (picture elements) on A4 (ISO
216) format area unit.
Minister for Culture Ž.
Jaunzeme-Grende
Translation © 2012 Valsts valodas centrs (State
Language Centre)
