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

ANSI/NIST-ITL 1-2011 - UPDATE 2013 DRAFT VERSIONoThe fifteenth information item (comments / COM) is optional and may be usedto give additional information about the characteristic assessment process,including a description of any characteristic assessment algorithms used, noteson any known external stresses applicable to the data subject, such as extremeenvironmental conditions or heavy physical or cognitive load, and a descriptionof how the values in the items of this subfield were assigned. If the sixthinformation item indicates read or prompted speech, this item may contain theread or prompted text. This item may have up to 4,000 characters.8.11.28 Field 11.038: Segment channel / SCHThis field contains subfields, each referring to a segment identified in either Field11.024: Snipping diary / SPD or the segment diary Field 11.025: Segment diary /SGD. Each subfield describes the transducer and transmission channel within theidentified segments. This field shall only be present if Field 11.024: Snipping diary /SPD or Field 11.025: Segment diary / SGD appears in this record.264oooThe first information item (diary identifier / DIA) is mandatory and is anindicator of the diary to which this subfield refers. If this item refers to asegment in Field 11.024: Snipping diary / SPD, the value is 0. If this itemrefers to a segment in Field 11.025: Segment diary / SGD, the value is 1.The second information item (segment identifiers / SID) is a mandatory list ofintegers and gives the segment identifiers from the diary to which the values inthis subfield pertain. There may be up to 600,000 values in this item. A value of0 in this item indicates the segment content information in this subfield shall beconsidered the default value for all segments not specifically identified in othersubfields of this field.The third information item (audio capture device type code / ACD) is optional.It is an integer with attribute values given in Table 79 Audio Capture DeviceType Codes. A value of “2” indicates that more than one type of microphone isbeing used simultaneously to collect the audio signal. It is recognized that formost of the acquisition sources in Field 11.008: Acquisition source / AQS, asspecified by Table 101 Acquisition source, the audio capture device type andmicrophone type code (MTC) shall be known.Table 79 Audio Capture Device Type CodesDevice type descriptionDevice typecodeUnknown 0Array 1Multiple style microphones 2Earbud 3Body Wire 4Microphone 5Handset 6Headset 7