CSLU: Alphadigit Version 1.3

<h3>Introduction</h3> <p>This file contains documentation for CSLU: Alphadigit Version 1.3 , Linguistic Data Consortium (LDC) catalog number LDC2008S06 and isbn 1-58563-478-6. </p> <p>Alphadigit Version 1.3 is a collection of 78,044 utterances from 3,025 speakers saying six-digit strings of letters and digits over the telephone for a total of approximately 82 hours of speech. Each speech file has corresponding orthographic and phonemic transcriptions. This corpus was created by the Center for Spoken Language Understanding (CSLU), Oregon Health &amp; Science University, Beaverton, Oregon.</p> <h3>Data</h3> <p>Speakers were recruited using USEnet postings. Respondents registered for the collection by completing an online form. Once registered, they received a list of 18-29 six-digit strings (e.g., "a 2 b 4 5 g") and participation instructions. Speakers called the CSLU data collection system by dialing a toll-free number and were prompted for each string; 1102 different strings were used throughout the course of the data collection. The lists were set up to balance for phonetic context between all letter and digit pairs. </p> <p>The data were recorded directly from a digital phone line without digital-to-analog or analog-to-digital conversion at the recording end using the CSLU T1 digital data collection system. The sampling rate was 8khz and the files were stored in 8-bit mu-law format on a UNIX file system. The files have been converted to RIFF standard file format, 16-bit linearly encoded.</p> <h3>Transcription</h3> <p> All of the files included in this corpus have corresponding non-time-aligned word-level transcriptions and time aligned phoneme-level transcriptions (automatic forced alignment) that comply with the conventions in the CSLU Labeling Guide. Non time-aligned orthographic transcriptions provide quick access to the content of an utterance; they may contain markers for word boundaries to support access and retrieval at the lexical level. Phonetic/phonemic transcriptions represent the phonetic content of an utterance at a given level of detail that is made explicit by the use of diacritics. Phonetic phenomena transcribed include excessive nasalization, glottalization, frication on a stop, centralization, lateralization, rounding and palatalization.</p> <h3>Samples</h3> <p>For an example of the speech contained in this corpus, please listen to this <a href="./desc/addenda/LDC2008S06.wav" rel="nofollow">audio sample</a> (MS wave). </p> </br>
Portions © 2000-2002 Center for Spoken Language Understanding, Oregon Health &amp; Science University, © 2008 Trustees of the University of Pennsylvania

<h3>引言</h3> <p>本文件为CSLU字母数字语音语料库（CSLU: Alphadigit）版本1.3的说明文档，由语言数据联盟（Linguistic Data Consortium, LDC）发布，目录号为LDC2008S06，ISBN为1-58563-478-6。</p> <p>Alphadigit版本1.3共收录3025名发音人的78044条语音语句，均为发音人通过电话朗读的6位字母数字组合字符串，总语音时长约82小时。每条语音文件均配有对应的正字法转写与音位转写文本。该语料库由位于俄勒冈州比弗顿市的俄勒冈健康与科学大学（Oregon Health & Science University）口语语言理解中心（Center for Spoken Language Understanding, CSLU）打造。</p> <h3>数据集</h3> <p>发音人通过Usenet用户新闻组帖子招募，报名者需填写在线表单完成注册。注册成功后，发音人将收到一份包含18至29条6位字母数字组合字符串的任务清单（例如"a 2 b 4 5 g"）与参与指南。发音人通过拨打免费电话号码接入CSLU数据采集系统，系统会依次提示朗读每条字符串；本次数据采集共使用1102条不同的字符串。任务清单的设计旨在平衡所有字母与数字组合间的语音语境。</p> <p>数据通过CSLU T1数字数据采集系统直接从数字电话线录制，采集端未进行数模或模数转换。采样率为8kHz，文件最初以8位μ律编码格式存储于UNIX文件系统中，后已转换为符合RIFF（资源交换文件格式）标准的16位线性编码格式。</p> <h3>转写规范</h3> <p>本语料库收录的所有语音文件均配有两类转写文本：一是未进行时间对齐的词级转写，二是符合CSLU标注指南规范的时间对齐音素级转写（采用自动强制对齐技术）。未进行时间对齐的正字法转写可快速获取语音语句的内容，其中可能包含词边界标记，以支持词汇层面的检索与调用。音系/音位转写则以特定细节程度呈现语音语句的语音内容，通过使用变音符号明确标注各类语音现象，包括过度鼻音化、声门化、塞音摩擦、央化、侧化、圆唇化与腭化。</p> <h3>样本示例</h3> <p>如需查看本语料库中语音样本的示例，请收听此<a href="./desc/addenda/LDC2008S06.wav" rel="nofollow">音频样本</a>（微软Wave格式）。</p> <br/> 本语料库部分内容©2000-2002 俄勒冈健康与科学大学口语语言理解中心，©2008 宾夕法尼亚大学董事会

搜集汇总

背景与挑战

背景概述

CSLU: Alphadigit Version 1.3是一个英语语音数据集，包含78,044个由3,025名说话者通过电话录制的六位字母和数字组合的语音片段，总时长约82小时，每个片段均配有正字和音位转录。该数据集专为语音识别研究设计，采样率为8kHz，采用电话对话数据源，适用于开发和测试语音处理算法。