1 2 (3) 4 5 (6) 

MB1 Clause No./ Paragraph/ Type Comment (justification for change) by the MB Proposed change by the MB 

Subclause No./ Figure/Table/ of 

Annex Note com-

(e.g. 3.1) (e.g. Table 1) ment2 

Nob Scope of the Page 9, lines ge Text beginning with “Although” provides good guidance 

1 Type‐11 347‐356 but would be better included in a Best Practices

Record document

Reinstate removed sentences. Although they apply at Add “A single ANSI/NIST‐ITL transactio

SJS 

Record Type‐ Line 460 T

U/1 the transaction level, nothing in the current document contain multiple voice recordings, ea

11: Voice makes these words incorrect. It is clarifying to point out separate Type‐11 record within the tra

Record

at the top of the document that the Type‐1 record can Although the transaction pertains to 

contain multiple speakers and does not itself define the person, the individual voice recordings i

transaction. the Type‐11 records required for the tr

may contain the speech of multiple spea

Nob Table 1, Field Page 13 ed The Value Constraints P and I are each listed twice Change contents of Value Constraints to 

2 11.003 ‐ P, I, G, or O

VRSO‐STC

Nob Table 1 Page 14 Te In Field 11.006, the mnemonic for Analog to Digital Change A2D to ATD or something similar 

11 conversion is listed as A2D. Don’t think mnemonics numbers. 

should contain numbers. 

Nob Table 1 Page 15 te In Field 11.010, RSU is described as being a text field, Change character type to U. 

10 but the Character type is listed as AS instead of U.

Nob Table 1, Field Page 25 ge Need to differentiate table references that are to other Note that Table 88 refers to ANSI/NIST‐IT

3 11.038‐SCH‐ than the Voice Supplement document and not the Voice Supplement. This nee

ACS done for references to Table 88 througho

rest of the Voice Supplement. 

 Editor’s Proposed Disposition of Comments on ANSI/NIST-ITL 1-2011 Supplement 4 for Forensic Voice 

Date: 01-27-2013 Document: V

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2 Type of comment: ge = general te = technical ed = editorial 

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1 2 (3) 4 5 (6) 

MB1 Clause No./ Paragraph/ Type Comment (justification for change) by the MB Proposed change by the MB 

Subclause No./ Figure/Table/ of 

Annex Note com-

(e.g. 3.1) (e.g. Table 1) ment2 

Nob Field 11.002 Page 27, line ed Period missing at end of sentence. Add period to end of

sentence, 

4 494DoD Field 11.005: Line

BS Role of VoiceWG Recording26

Decompose 835 Field Id 11.005 into its core root attributes. Rename field to Voice Recording Conten

Descriptor; Delete/remove Table V‐3 Ro

Voice Recording. New description of Fie

Voice Recording Descriptor should be as 

This field shall describe the content of 

recording. It consists of 3 information ite

o The first information item (subj

known indicator /SKI) is a binarindicator and is mandatory if th

used. It indicates if the voice rec

sample was obtained from a kn

subject. 0 indicates subject was unknown; 1 indicates subject w

known. 

o The second information item (s

plurality code/SPC) indicates pl

speakers represented on voice recording.

 Editor’s Proposed Disposition of Comments on ANSI/NIST-ITL 1-2011 Supplement 4 for Forensic Voice 

Date: 01-27-2013 Document: V

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2 Type of comment: ge = general te = technical ed = editorial 

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1 2 (3) 4 5 (6) 

MB1 Clause No./ Paragraph/ Type Comment (justification for change) by the MB Proposed change by the MB 

Subclause No./ Figure/Table/ of 

Annex Note com-

(e.g. 3.1) (e.g. Table 1) ment2 

o M = multiple speakers o S = single speaker 

. o The third information item (voic

descriptor code/VDC) describes of the voice recording sample wtransaction.When speaker plurality code ind

single speaker, this field differen

voice is subject or interlocutor.

o S = Subjecto I = Interlocutor

o When speaker plurality code ind

multiple speakers, this field des

voice sample includes or excludsubject of the transaction.

o N = Includeso X = Excludes

MIT Field 11.011 Replace the entire section with this contribution. This is an optional field (container for

679 T that gives information about the 

/1

format, if any, which encapsulates the a

of the electronic file used to carry the vin the digital recording. This field is no

the voice recording is stored on a physi

object as an analog signal. If present, 

overrides the CDC Field 11.012. This f

 Editor’s Proposed Disposition of Comments on ANSI/NIST-ITL 1-2011 Supplement 4 for Forensic Voice 

Date: 01-27-2013 Document: V

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2 Type of comment: ge = general te = technical ed = editorial 

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 Editor’s Proposed Disposition of Comments on ANSI/NIST-ITL 1-2011 

Supplement 4 for Forensic Voice 

Date: 01-27-2013 Document: V

1 

MB1 

2 

Clause No./ 

Subclause No./ 

Annex 

(e.g. 3.1) 

(3) 

Paragraph/ 

Figure/Table/ 

Note 

(e.g. Table 1) 

4 

Type 

of 

comment2 

5 

Comment (justification for change) by the MB 

(6) 

Proposed change by the MB 

not accommodate multiple Container F

a single Type‐11 record. The Containe

shall be entered as the appropriate inte

from Table 3 below.

Container files incorporate audio samspecifications to properly decode the auas the codec, and its parameters, e.g., nchannels, sample rate, bit/byte de

big/little endian. More generally, the formats can specify a codec, or 

encapsulate one or more audio cha

Linear PCM.The well‐known Wave container specificfields such as chunk ID, chunk size, aud

(codec), sampling rate, number of space for extra parameters (for the 

other uses).

Table 3

Table of Audio Visual Container Type

Container Type Windows

Extension(s)

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 Editor’s Proposed Disposition of Comments on ANSI/NIST-ITL 1-2011 

Supplement 4 for Forensic Voice 

Date: 01-27-2013 Document: V

1 2 (3) 4 5 (6) 

MB1 Clause No./ Paragraph/ Type Comment (justification for change) by the MB Proposed change by the MB 

Subclause No./ Figure/Table/ of 

Annex Note com-

(e.g. 3.1) (e.g. Table 1) ment2 

RAW format (no Container)WAV (RIFF audio) .wav 

3GP and 3G2 mobile .3gp .3g2 videoAIFF .aiff .aif MP3 (MPEG‐1, Layer .mp3 

3 audio)

QuickTime (Apple .mov .qt VBR‐audio/video/image)Video for Windows .avi Vorbis (OGG audio) .ogg Windows Media .wmv 

.wma

.asf .asx

Other 

All the audio characteristics required to interpret RAW format data must be elsewhere, so if RAW is specified, th11.012 is mandatory since the codec typparameters (SRT, BIT, EDN, PNT, and C

be specified for retrieval of the audio.

A Container Type of Other (CFT=2) indicthe Container is not given in Table 

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2 Type of comment: ge = general te = technical ed = editorial 

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 Editor’s Proposed Disposition of Comments on ANSI/NIST-ITL 1-2011 

Supplement 4 for Forensic Voice 

Date: 01-27-2013 Document: V

1 

MB1 

2 

Clause No./ 

Subclause No./ 

Annex 

(e.g. 3.1) 

(3) 

Paragraph/ 

Figure/Table/ 

Note 

(e.g. Table 1) 

4 

Type 

of 

comment2 

5 

Comment (justification for change) by the MB 

(6) 

Proposed change by the MB 

specified externally to the Type‐11 

Containers not specified in Table 3 are are not guaranteed to exist in implementation of the standard, and s

used with caution. Optional Contai

specified in Table 3‐External, as publish

document External Container Formats, http://xyx.gov.

MIT/2

Field 11.012 708

T Replace the section with the following: This is an optional field that gives inf

about the codec used to encode the v

audio data in the digital recording. Th

not used if the voice recording is stophysical media object as an analog sig

field is only used if the digital audio fi

Container. Information in Field 11.011 (CType/CFT) overrides this Field if both are 

The following information types can be s

o Codec type code (CDT): is man

this information item is uindicates the single codec type 

all audio segments in the rec

format does not accommodate codec types within a single rshall be a numeric entry selecthe Attribute Code column of T

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2 Type of comment: ge = general te = technical ed = editorial 

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 Editor’s Proposed Disposition of Comments on ANSI/NIST-ITL 1-2011 

Supplement 4 for Forensic Voice 

Date: 01-27-2013 Document: V

1 2 (3) 4 5 (6) 

MB1 Clause No./ 

Subclause No./ 

Annex 

(e.g. 3.1) 

Paragraph/ 

Figure/Table/ 

Note 

(e.g. Table 1) 

Type 

of 

comment2 

Comment (justification for change) by the MB Proposed change by the MB 

o

the codec type is identified 

(CDT=7), the final informati

(comments/COM) shall be 

describe the codec.

Sampling rate number (SRT): inthe number of digital samples psecond that represent a second 

analog voice data upon convers

acoustic signal. The sampling raexpressed in Hz and must be an 

value. Acceptable values are beand 100,000,000 Hz, but unknowvariable sampling rates shall be the value of 0. Common values 

are 8000, 11025, 16000, 22050, 

44100, and 48000 Hz. The value 

shall only be used to indicate un

or variable sampling rate.

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2 Type of comment: ge = general te = technical ed = editorial 

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 Editor’s Proposed Disposition of Comments on ANSI/NIST-ITL 1-2011 

Supplement 4 for Forensic Voice 

Date: 01-27-2013 Document: V

1 2 (3) 4 5 (6) 

MB1 Clause No./ 

Subclause No./ 

Annex 

(e.g. 3.1) 

Paragraph/ 

Figure/Table/ 

Note 

(e.g. Table 1) 

Type 

of 

comment2 

Comment (justification for change) by the MB Proposed change by the MB 

o Bit depth count (BIT): indicates 

number of bits that are used to

represent a single digital sample 

data. Acceptable values are betand 64, inclusive. Encoders of u

or variable bit depth shall be giv

value of 0. (This field is not intenbe an indication of the actual dyrange of the voice data.) Change

bit depth should be logged in Ty

Field 11.902 audit logs. Commo

for BIT are 8, 16, 24, and 32 bits

o Endian code (EDN): indicates w

goes first for digital samples contwo or more bytes. The values fare 0=big, 1=little, or 2=native e

(EDN is optional and ignored for 

samples that do not contain two more integer multiples of bytes

o Fixed point indicator (PNT): ind

the digital sample representatio

value is 0 if the digital samples arepresented as fixed‐point or 1 

samples are floating‐point.

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2 Type of comment: ge = general te = technical ed = editorial 

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 Editor’s Proposed Disposition of Comments on ANSI/NIST-ITL 1-2011 

Supplement 4 for Forensic Voice 

Date: 01-27-2013 Document: V

1 2 (3) 4 5 (6) 

MB1 Clause No./ 

Subclause No./ 

Annex 

(e.g. 3.1) 

Paragraph/ 

Figure/Table/ 

Note 

(e.g. Table 1) 

Type 

of 

comment2 

Comment (justification for change) by the MB Proposed change by the MB 

o

Channel count (CHC): gives the number of channels of data repin the digital voice data file. The of channels must be between 1 

inclusive. Common values for CH

and 2 channels.

o

Comments (COM): is an un

text string of up to 4000 char

length. It is required if the Code

Other (CDT=7). For Codec Typ

than Other, COM is optional acontain additional information acodec or additional instructreconstruction of audio output stored digital data. Codec pa

shall be specified in this fierequired for unambiguous d

This item should include a desc

any noise reduction proce

equalization that must be ap

faithfully render the voice recor

Nob13

Field 11.010 Page 32, line

663

Te Fourth item does not contain representation term or

method of expressing information.

Rename item to “equalization descriptio

reword item to “The fourth infromation 

(equalization description/EQ) is an optiofield containing up to 1000 characters an

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2 Type of comment: ge = general te = technical ed = editorial 

NOTE Columns 1, 2, 4, 5 are compulsory. Add Rows as needed. 
1 2 (3) 4 5 (6) 

MB1 Clause No./ Paragraph/ Type Comment (justification for change) by the MB Proposed change by the MB 

Subclause No./ Figure/Table/ of 

Annex Note com-

(e.g. 3.1) (e.g. Table 1) ment2 

indicating the the equalization that shou

applied for faithful rendering of the voice

recording on the physical media object.”

Nob Field 11.031 Page 40, line ed For the sentence “the fourth information item (tagged Reword sentence to “The fourth informa

14 1063 date/TDT) is optional and gives the date tagged on the (tagged date/TDT) is optional and gives t

original...”, the meaning of ‘tagged’ is unclear. indicated on the original...”

Nob Field 11.031 Page 40, line ed In the fourth item description, previous acronym DOR is Change “DOR” to “ORD” 

15 1065 used for original recording date.Nob Field 11.034 Page 44, line te Field name needs to be updated from “Indicator” to Change bolded text to Vocal Collision 

5 1198 “Identifiers” Identifiers/VCI

Nob Field 11.036 Page 45, line ge Phonetic transcriptions could feasibly be used by an Change Field 11.036 as follows: 

16a 1266 automated process in a different way than translations 

Append to text of field description (1252

or semantic transcriptions could, and comments may be 

least one of the third, fourth, and fifth

used differently than all three. 

information items must be used if this fie

used.”Change third item to: “The third informa

(semantic content text/SMC) is an optio

field containing a translation or semantic 

transcription of the segment.” 

Add an item after the third: “The fourth 

information item (phonetic transcript te

is an optional text field containing a pho

transcription of the segment.”

Add an item after the fourth: “The fifth

 Editor’s Proposed Disposition of Comments on ANSI/NIST-ITL 1-2011 Supplement 4 for Forensic Voice 

Date: 01-27-2013 Document: V

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 Editor’s Proposed Disposition of Comments on ANSI/NIST-ITL 1-2011 

Supplement 4 for Forensic Voice 

Date: 01-27-2013 Document: V

1 2 (3) 4 5 (6) 

MB1 Clause No./ 

Subclause No./ 

Annex 

(e.g. 3.1) 

Paragraph/ 

Figure/Table/ 

Note 

(e.g. Table 1) 

Type 

of 

comment2 

Comment (justification for change) by the MB Proposed change by the MB 

information item (segment contentcomments/COM) is an optional text fieldcontaining comments on the content of t

segment.Change current fourth item to: “The sixth

information item (transcript authority co

text/TAC) is an optional text field and sh

the authority providing the transcription

translation or comments if SMC, PTS or C

used. If an automated process was used 

develop the transcript, information abou process (i.e., the automated algorithm u

should be included in this text.”

Nob16b

Table 1, field11.036

Page 23 ge If 16a accepted, table will need to be filled in

accordingly

Adjust information items as follows:Change TRN to SMC, description to “sem

content text”

Append an identical information item aftreplacing Mnemonic with “PTS” and Con

Description with “phonetic transcript tex

Append an identical information item aftreplacing Mnemonic with “COM” and Co

Description with “segment content comm

Nob6

Field 11.037 Page 47, line

1323

te In accordance with information item name change,

remove reference to “intimacy”

Delete “/intimacy” 

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2 Type of comment: ge = general te = technical ed = editorial 

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 Editor’s Proposed Disposition of Comments on ANSI/NIST-ITL 1-2011 

Supplement 4 for Forensic Voice 

Date: 01-27-2013 Document: V

1 2 (3) 4 5 (6) 

MB1 Clause No./ 

Subclause No./ 

Annex 

(e.g. 3.1) 

Paragraph/ 

Figure/Table/ 

Note 

(e.g. Table 1) 

Type 

of 

comment2 

Comment (justification for change) by the MB Proposed change by the MB 

Nob7

Field 11.037 Page

1323

47, line te For the statement, “with 0 indicating no familiarity

5 indicating high familiarity/intimacy”, it is unclearwhether the input value ranges from 0 to 5.

and Reword statement to “which ranges from 

indicating no familiarity to 5 indicating hfamiliarity”

Nob Table 6 Page 47 Te Previous editor comment indicated that “Variable” Add “Variable” to Table 6 as item 9, chan12 would be added to Table 6, but it is not in the latest

revision. Additionally, the line at 1333 should be

changed to read ““If attribute codes ‘9’ or ‘10’ are

chosen to indicate ‘variable’ or ‘other’, additional

explanation may be included in the tenth information

item (comments/COM) below.”

“Other” to item 10, andas indicated.

change line 1333 

Nob8

Field 11.037 Page

1341

47, line ed Missing space Add a space after “5” 

Nob9

Table 8 Page 49 te It is unclear what type(s) of microphone

is to represent given that other types ofare explicitly noted.

“Microphone”

microphones

TBD clarification is suggested 

SJSU/3

11.038 1411 e A distance is not a text Remove item the word “text” from the nam

SJSU/4

11.038 1425

T There is no provision for indication cancelling was in place during data that an active collection noise Add an eighth information idem and r

subsequent items:The eighth information item (tnoise ca

indicator/NCI) is an optional, binary 

indicate that an active noise cancellinwas used in the collection of the speech 

indicates no active noise cancelling. 1 

active noise cancelling.

Please enter the date that you submit the comment in the Date box. 1 MB = Member identifier -- use something like NIST or ABC to designate your gourp 

2 Type of comment: ge = general te = technical ed = editorial 

NOTE Columns 1, 2, 4, 5 are compulsory. Add Rows as needed. 
1 2 (3) 4 5 (6) 

MB1 Clause No./ 

Subclause No./ 

Annex 

(e.g. 3.1) 

Paragraph/ 

Figure/Table/ 

Note 

(e.g. Table 1) 

Type 

of 

comment2 

Comment (justification for change) by the MB Proposed change by the MB 

11.996 Analog files cannot be digitally hashed Change to

This optional field shall contain the hash 

the data in Field 11.999: Voice Data 

record, calculated using SHA‐256

SJSU/5

1504 T

 Editor’s Proposed Disposition of Comments on ANSI/NIST-ITL 1-2011 Supplement 4 for Forensic Voice 

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