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  • 115期特码歇后语:Pronunciation User Scenarios

    W3C First Public Working Draft

    This version:
    //www.gzifj.tw/TR/2019/WD-pronunciation-user-scenarios-20190905/
    Latest published version:
    //www.gzifj.tw/TR/pronunciation-user-scenarios/
    Latest editor's draft:
    https://w3c.github.io/pronunciation/user-scenarios
    Editors:
    (Educational Testing Service)
    (Invited expert)
    (Invited expert)
    (Deque System)
    (W3C)

    Abstract

    The objective of the Pronunciation Task Force is to develop normative specifications and best practices guidance collaborating with other W3C groups as appropriate, to provide for proper pronunciation in HTML content when using text to speech (TTS) synthesis. This document provides various user scenarios highlighting the need for standardization of pronunciation markup, to ensure that consistent and accurate representation of the content. The requirements that come from the user scenarios provide the basis for the technical requirements/specifications.

    Status of This Document

    This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at //www.gzifj.tw/TR/.

    This is a First Public Working Draft of Pronunciation User Scenarios by the Accessible Platform Architectures Working Group. It was initially developed by the Pronunciation Task Force to provide various user scenarios highlighting the need for standardization of pronunciation markup, to ensure that consistent and accurate representation of the content. The requirements that come from the user scenarios provide the basis for the technical requirements/specifications.

    To comment, file an issue in the W3C pronunciation GitHub repository. If this is not feasible, send email to [email protected] (subscribe, archives). Comments are requested by 14 October 2019. In-progress updates to the document may be viewed in the publicly visible editors' draft.

    Publication as a First Public Working Draft does not imply endorsement by the W3C Membership. This is a draft document and may be updated, replaced or obsoleted by other documents at any time. It is inappropriate to cite this document as other than work in progress.

    This document was produced by a group operating under the W3C Patent Policy. The group does not expect this document to become a W3C Recommendation. W3C maintains a public list of any patent disclosures made in connection with the deliverables of the group; that page also includes instructions for disclosing a patent. An individual who has actual knowledge of a patent which the individual believes contains Essential Claim(s) must disclose the information in accordance with section 6 of the W3C Patent Policy.

    This document is governed by the 1 March 2019 W3C Process Document.

    1. Introduction

    This section is non-normative.

    As part of the Accessible Platform Architectures (APA) Working Group, the Pronunciation Task Force (PTF) is a collaboration of subject matter experts working to identify and specify the optimal approach which can deliver reliably accurate pronunciation across browser and operating environments. With the introduction of the Kurzweil reading aid in 1976, to the more sophisticated synthetic speech currently used to assist communication as reading aids for the visually impaired and those with reading disabilities, the technology has multiple applications in education, communication, entertainment, etc. From helping to teach spelling and pronunciation in different languages, Text-to-Speech (TTS) has become a vital technology for providing access to digital content on the web and through mobile devices.

    The challenges that TTS presents include but are not limited to: the inability to accommodate regional variation and presentation of every phoneme present throughout the world; the incorrect determination by TTS of the pronunciation of content in context, and; the current inability to influence other pronunciation characteristics such as prosody and emphasis.

    2. User Scenarios

    The purpose of developing user scenarios is to facilitate discussion and further requirements definition for pronunciation standards developed within the PTF prior to review of the APA. There are numerous interpretations of what form user scenarios adopt. Within the user experience research (UXR) body of practice, a user scenario is a written narrative related to the use of a service from the perspective of a user or user group. Importantly, the context of use is emphasized as is the desired outcome of use. There are potentially thousands of user scenarios for a technology such as TTS, however, the focus for the PTF is on the core scenarios that relate to the kinds of users who will engage with TTS.

    User scenarios, like Personas, represent a composite of real-world experiences. In the case of the PTF, the scenarios were derived from interviews of people who were end-consumers of TTS, as well as submitted narratives and industry examples from practitioners. There are several formats of scenarios. Several are general goal or task-oriented scenarios. Others elaborate on richer context, for example, educational assessment.

    The following user scenarios are organized on the three perspectives of TTS use derived from analysis of the qualitative data collected from the discovery work:

    2.1 End-Consumer of TTS

    Ultimately, the quality and variation of TTS rendering by assistive technologies vary widely according to a user's context. The following user scenarios reinforce the necessity for accurate pronunciation from the perspective of those who consume digitally generated content.

    2.2 Digital Content Management for TTS

    The advent of graphical user interfaces (GUIs) for the management and editing of text content has given rise to content creators not requiring technical expertise beyond the ability to operate a text editing application such as Microsoft Word. The following scenario summarizes the general use, accompanied by a hypothetical application.

    2.2.1 Educational Assessment

    In the educational assessment field, providing accurate and concise pronunciation for students with auditory accommodations, such as text-to-speech (TTS) or students with screen readers, is vital for ensuring content validity and alignment with the intended construct, which objectively measures a test takers knowledge and skills. For test administrators/educators, pronunciations must be consistent across instruction and assessment in order to avoid test bias or impact effects for students. Some additional requirements for the test administrators, include, but are not limited to, such scenarios:

    • A. As a test administrator, I want to ensure that students with the read-aloud accommodation, who are using assistive technology or speech synthesis as an alternative to a human reader, have the same speech quality (e.g., intonation, expression, pronunciation, and pace, etc.) as a spoken language.
    • B. As a math educator, I want to ensure that speech accuracy with mathematical expressions, including numbers, fractions, and operations have accurate pronunciation for those who rely on TTS. Some mathematical expressions require special pronunciations to ensure accurate interpretation while maintaining test validity and construct. Specific examples include:
      • Mathematical formulas written in simple text with special formatting should convey the correct meaning of the expression to identify changes from normal text to super- or to sub-script text. For example, without the proper formatting, the equation:a3-b3=(a-b)(a2+ab+b2) may incorrectly render through some technologies and applications as a3-b3=(a-b)(a2+ab+b2).
      • Distinctions made in writing are often not made explicit in speech; For example, “fx” may be interpreted as fx, f(x), fx, F X, F X. The distinction depends on the context; requiring the author to provide consistent and accurate semantic markup.
      • For math equations with Greek letters, it is important that the speech synthesizer be able to distinguish the phonetic differences between them, whether in the natural language or phonetic equivalents. For example, ε (epsilon) υ (upsilon) φ (phi) χ (chi) ξ(xi).
    • C. As a test administrator/educator, pronunciations must be consistent across instruction and assessment, in order to avoid test bias and pronunciation effects on performance for students with disabilities (SWD) in comparison to students without disabilities (SWOD). Examples include:
      • If a test question is measuring rhyming of words or sounds of words, the speech synthesis should not read aloud the words, but rather spell out the words in the answer options.
      • If a test question is measuring spelling and the student needs to consider spelling correctness/incorrectness, the speech synthesis should not read aloud the misspelt words, especially for words, such as:
        • Heteronyms/homographs: same spelling, different pronunciation, different meanings, such as lead (to go in front of) or lead (a metal); wind (to follow a course that is not straight) or wind (a gust of air); bass (low, deep sound) or bass (a type of fish), etc.
        • Homophone: words that sound alike, such as, to/two/too; there/their/they're; pray/prey; etc.
        • Homonyms: multiple meaning words, such as scale (measure) or scale (climb, mount); fair (reasonable) or fair (carnival); suit (outfit) or suit (harmonize); etc.

    2.2.2 Academic and Linguistic Practitioners

    The extension of content management in TTS is one as a means of encoding and preserving spoken text for academic analyses; irrespective of discipline, subject domain, or research methodology.

    • A. As a linguist, I want to represent all the pronunciation variations of a given word in any language, for future analyses.
    • B. As a speech language pathologist or speech therapists, I want TTS functionality to include components of speech and language that include dialectal and individual differences in pronunciation; identify differences in intonation, syntax, and semantics, and; allow for enhanced comprehension, language processing and support phonological awareness.

    2.3 Software Application Development

    Technical standards for software development assist organizations and individuals to provide accessible experiences for users with disabilities. The final user scenarios in this document are considered from the perspective of those who design and develop software.

    A. Acknowledgments

    This section is non-normative.

    The following people contributed to the development of this document.

    A.1 Participants active in the Pronunciation TF at the time of publication

  • 习近平为传统文化“代言” 2020-01-18
  • 迎泽大街下穿火车站通道顶进过半 2020-01-18
  • 游客被指捡石子砸老虎 北京野生动物园:正在核实 2020-01-17
  • 戏曲进校园 宣传十九大又传承民族文化 2020-01-17
  • 《人民日报》创刊70周年 各界人士送祝福 2020-01-15
  • “暗剑”无人机相关新闻 2020-01-15
  • 习近平:在深入推动长江经济带发展座谈会上的讲话 2020-01-12
  • 打造科技创新领域的竞争优势 2020-01-12
  • 读书、看展成潮流 山城端午文化热 2020-01-08
  • 重庆市公安局交通管理局互联网交通安全服务管理平台 2020-01-08
  • 《鬼神童子》漫画家黑岩善宏因心肌梗塞于本月8日去世 2020-01-08
  • 第八届全国税收宣传漫画大赛评选结果揭晓 2020-01-07
  • 习近平会见美国国务卿蓬佩奥 2020-01-03
  • 和尚为什么叫“和尚”? 2020-01-03
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