acknowledgements for ansi/nist-itl 1-2011 - NIST Visual Image ...

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ANSI/NIST-ITL 1-2011 - UPDATE 2013 DRAFT VERSIONdescriptor code /AOD is set to 0, 1 or 2. If present, this field overrides Field 11.014:Codec / CDC. There cannot be multiple container formats specified within a singleType-11 record. The container format shall be entered as the appropriate integer codefrom Table 74 Audio Visual Container Codes.This field contains three information items. The first information item (container code /CONC) is mandatory. The second information item is used only when CONC is set to1. The third information item is required when CONC is set to 1 and is optionalotherwise.Files having container formats incorporate audio specifications to properly decode theaudio, such as the number of channels, sampling rate, bit/byte depth, and whether thedata is big/little endian. More generally, container formats can specify an audio formatused to encode the data, or simply encapsulate one or more audio channels as LinearPCM. The well‐known Wave container specification (WAV) has fields such as chunkID, chunk size, audio format (codec format), sampling rate, number of channels, spacefor extra parameters (for the codec or other uses).Table 74 Audio Visual Container CodesContainer Type Common file extension(s) ContainercodeRAW audio format undefined 0Container Type Reference various 1Other various 2WAV (RIFF audio) .wav 33GP and 3G2 mobile video .3gp .3g2 4AIFF .aiff .aif 5MP3 (MPEG-1, Layer 3 audio) .mp3 6QuickTime (Apple VBRaudio/video/image)(Note:.mov .qt 7allows pointers to external filesand servers)Video for Windows .avi 8Vorbis (OGG audio) .ogg 9Windows Media Type 1 .wmv .wma 10Windows Media Type 2 (Note:allows pointers to external filesand servers).asf .asx 11All of the audio characteristics required to properly interpret RAW format data (CONC= 0) must be provided; so if RAW is specified, then Field 11.014: Codec / CDC ismandatory.If CONC has a value other than zero then the presence of Field 11.014: Codec / CDCis dependent upon the type of container format.• If a container format specifies a codec which cannot be changed, then FieldMay, 2013 DRAFT VERSION UPDATE 2013 Page 247
ANSI/NIST-ITL 1-2011 - UPDATE 2013 DRAFT VERSION11.014: Codec / CDC should not be included in the record.• For container types that allow different codecs and codec format, and if thecontainer format does not specify the codec format, then Field 11.014:Codec / CDC should be included in the record.The information items for this field are described below.• The first information item, which is mandatory, is container code / CONC.It is taken from the container code column of Table 74 Audio VisualContainer Codes . A container code of Other (CONC=2) indicates thatthe container is given neither in Table 74 Audio Visual Container Codesnor in the external container list and must be specified. If CONC=2, theField 11.051: Comment / COM shall be used to describe the container. Seehttp://www.nist.gov/itl/iad/ig/ansi_standard.cfm for additionalcontainers. Such additional containers (not listed in Table 74 Audio VisualContainer Codes ) shall use the value CONC=1.• The second information item only appears if CONC = 1. It is the externalcontainer reference code / ECON and contains the 'reference code' fromthe table of containers available athttp://www.nist.gov/itl/iad/ig/ansi_standard.cfm.• The third information item (comments / COM) is an optional, unrestrictedtext string of up to 4000 characters in length. However, it is required ifCONC = 2. It can contain additional information about the container oradditional instructions for reconstruction of audio output from the storeddigital data. Container parameters shall be specified in this information itemwhen required for unambiguous decoding. This item should include adescription of any noise reduction processing or equalization that must beapplied to faithfully render the voice recording.8.11.14 Field 11.014: Codec / CDCThis is an optional field that gives information about the codec used to encode the voiceand audio data in the digital recording. It may only appear is Field 11.003: Audioobject descriptor code /AOD is set to 0, 1 or 2. (This field is not used if the voicerecording is stored on a physical media object as an analog signal.)Information in Field 11.013: Container / CONT overrides this Field if both arepresent.• If a container format in Field 11.013: Container / CONT specifies a codecwhich cannot be changed, then Field 11.014: Codec / CDC should not beincluded in the record.• For container types specified in Field 11.013: Container / CONT thatallow different codecs and codec formats then Field 11.014: Codec / CDCshould be included in the record.• Field 11.013: Container / CONT need not be present for RAW files, butCDC is mandatory if CONT is set to RAW.248
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NIST Special Publication 500-xxxANS
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5.3.18 Type-18 records ............
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8.1.4 Field 1.004 Type of transacti
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8.9.7.18 Field 9.322: EFS core delt
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8.11 Record Type-11: Forensic and i
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8.14.2 Field 14.002: Information de
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8.17 Record Type-17: Iris image rec
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8.19.24 Field 19.902: Annotation in
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8.24.6 Field 99.101: Biometric type
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F.6.3 Reference points.............
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Figure 34: Palm with carpal delta a
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Table 31 Off-center fingerprint pos
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Table 95 DNA sample cellular types.
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Type-11:A new record type introduce
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ACKNOWLEDGEMENTS FOR ANSI/NIST-ITL
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Will Graves, Rob Mungovan, Catherin
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John ManzoFBI/BIOMETRICS Center ofE
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General Editor: Brad Wing[2013a>]AC
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CANVASSEES For the 2013 UpdateTO BE
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ANSI/NIST-ITL 1-2011 - UPDATE 2013
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