1、Designation:E236404(Reapproved 2010)Standard Guide toSpeech Recognition Technology Products in Health Care1This standard is issued under the fixed designation E2364;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last rev
2、ision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide identifies system types and describes variousfeatures of speech recognition technology(SRT)products usedto create the he
3、althcare record.This will assist users(healthinformation professionals,medical report originators,admin-istrators,medical transcriptionists,speech recognition medicaltranscription editors(SRMTEs),system integrators,supportpersonnel,trainers,and others)to make informed decisionsrelating to the design
4、 and utilization of SRT systems.1.2 This guide does not address the following items:1.2.1 System and data(voice and text)security.1.2.2 Administrative processes such as authentication of thedocument,productivity measurements,etc.2.Referenced Documents2.1 ASTM Standards:2E1902 Specification for Manag
5、ement of the Confidentialityand Security of Dictation,Transcription,and TranscribedHealth RecordsE1985 Guide for User Authentication and AuthorizationE2084 Specification for Authentication of Healthcare Infor-mation Using Digital SignaturesE2184 Specification for Healthcare Document FormatsE2185 Spe
6、cification for Transferring Digital Voice DataBetween Independent Digital Dictation Systems andWorkstationsE2344 Guide for Data Capture through the Dictation Process2.2 Other Documents:Resource Interchange File Format(RIFF)Standard3.Terminology3.1 Definitions:3.1.1 acoustic model,nphoneme map of use
7、r.3.1.2 authentication,nthe process of confirming author-ship of an entry or of a document,for example,by verifyingwith a written signature,identifiable initials,computer key,orother methods.3.1.3 author,nperson responsible for content of text file.3.1.4 back-end system,ndelayed processing for docum
8、entcompletion.3.1.5 compound file,na file containing recorded voicewith its transcribed text.3.1.6 context,na long list of vocabulary words andphrases used for the particular subject matter,with theirspellings and pronunciations,statistical information aboutusage of each word alone and in combinatio
9、n.For example,thecontext may include the number of times that“right,”“Wright,”“turn right,”“right turn,”“right hand,”and“Mr.Wright”occur in a body of text.It also includes grammar andstyle information.Language model,lexicon,topic,and vocabu-lary are terms that are all used synonymously with context.
10、3.1.7 digital signature,ndata associated with,or a cryp-tographic transformation of,a data unit that allows a recipientto prove the source and integrity of the data unit and protectagainst forgery,for example,by the recipient.3.1.8 edit,vto review the document while listening to theoriginators recor
11、ded voice and reading the associated tran-scribed text(compound file),checking for recognition errorsand correcting document formatting and other inconsistencies.When the SRMTE is not the originator,the SRMTE may needto flag the document for originator/author clarification ofunclear content or inten
12、t.3.1.9 encryption,nthe process of transforming plain text(readable)into cipher text(unreadable)for the purpose ofsecurity and privacy.3.1.10 front-end system,na system incorporating real-time recognition and may include real-time self-editing by theoriginator.3.1.11 language model,ncontext specific
13、 to medical spe-cialty,user,or practice setting.3.1.12 lossless compression,na lossless compression re-duces the amount of data required to represent the originalvoice file but has no impact on sound quality.The original filecan be replicated precisely at any time.1This guide is under the jurisdicti
14、on of ASTM Committee E31 on HealthcareInformatics and is the direct responsibility of Subcommittee E31.15 on HealthcareInformation Capture and Documentation.Current edition approved March 1,2010.Published August 2010.Originallyapproved in 2004.Last previous edition approved in 2004 as E236404.DOI:10
15、.1520/E2364-04R10.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Dri
16、ve,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.13 lossy compression,na lossy compression losessome information,resulting in degradation of the sound qualityinherent in the original voice file and an inability to preciselyregenerate that original file.3.1.14 microphone,nan instrument whereby sound wavesare caused to generate or modulate an electric current usuallyfor the purpose of transmitting or recording sound(as speech ormusic).3.1.15 microphone element,nthe component withi
