Switchboard Cellular Part 2 Audio

<h3>Introduction</h3><br>
<p>Switchboard Cellular Part 2 Audio was devloped by the Linguistic Data Consortium (LDC) and consists of approximately 200 hours of English telephone conversations collected by LDC in 2000. The Switchboard cellular collection focused primarily on cellular phone technology of all service types. The goal was to target 200 subjects balanced by gender to participate in (10+) five-six minute conversations on cellular phones. The speech data was collected for research, development, and evaluation of automatic systems for speech-to-text conversion, talker identification, language identification and speech signal detection purposes.</p><br>
<p>During the study period, LDC collected a total of 2,020 calls, or 4,040 sides (2,950 cellular) from 419 participants (2,405 female speakers, 1,635 male speakers) under varied environmental conditions.</p><br>
<h3>Data</h3><br>
<p>This release contains speech data files with documentation describing speaker information (sex, age, education, city and state where raised), call information (date, time, call duration, Personal Identification Numbers, topic), and audit information (channel quality, background noise). The documentation also contains reports on clipped files.</p><br>
<p>Each speech file consists of a 1,024-byte ASCII-formatted Sphere header, followed by two-channel interleaved mu-law sample data. The mu-law samples represent the actual digital data transmission from the telephone service provider (MCI), as captured separately for each side of the telephone conversation by LDC's telephone collection platform. The header also indicates the caller_pin, callee_pin, topic_id, cellular service/handset information and speaker demographic information. The data files are not compressed.</p><br>
<p>Other releases in this series include:</p><br>
<p>Switchboard Cellular Part 1 Audio (<a href="../../../LDC2001S13">LDC2001S13</a>)</p><br>
<p>Switchboard Cellular Part 1 Transcribed Audio (<a href="../../../LDC2001S15">LDC2001S15</a>)</p><br>
<p>Switchboard Cellular Part 1 Transcription (<a href="../../../LDC2001T14">LDC2001T14</a>)</p><br>
<h3>Sample</h3><br>
<p>Please examine this <a href="desc/addenda/LDC2004S07.wav" rel="nofollow">example audio file</a> to review a sample of this corpus.</p><br>
<h3>Updates</h3><br>
<p>There are no updates available at this time.</p></br>
Portions © 2000, 2004 Trustees of the University of Pennsylvania

<h3>简介</h3><br>
<p>Switchboard Cellular Part 2 Audio 由语言数据联盟（Linguistic Data Consortium, LDC）开发，包含约200小时的英语电话通话音频，由LDC于2000年采集。该蜂窝电话数据集系列主要聚焦于全服务类型的蜂窝电话技术。项目目标是招募200名按性别均衡分配的受试者，使其使用蜂窝电话完成10次以上、时长5至6分钟的通话。本语音数据集采集的目的是为语音转文字、说话人识别、语言识别及语音信号检测等自动系统的研究、开发与评估提供支撑。</p><br>
<p>在研究周期内，LDC共采集了2020通电话，合计4040个通话单边（其中2950通为蜂窝电话通话），涉及419名参与者（女性发言者2405名，男性发言者1635名），采集环境涵盖多种不同场景。</p><br>
<h3>数据内容</h3><br>
<p>本次发布的数据包含语音文件以及配套说明文档，其中详细记录了说话人信息（性别、年龄、受教育程度、成长所在城市与州）、通话信息（日期、时间、通话时长、个人识别码（PIN）、通话主题）以及审核信息（信道质量、背景噪声）。该文档还包含关于裁剪文件的相关报告。</p><br>
<p>每个语音文件均以1024字节的ASCII格式Sphere文件头（Sphere header）开头，随后跟随双通道交错的μ律（mu-law）采样数据。该μ律采样数据直接源自电话服务提供商MCI的原始数字传输数据，由LDC的电话采集平台分别对通话双方的语音信号进行捕获。文件头中还包含主叫PIN、被叫PIN、主题ID、蜂窝服务/手机信息以及说话人人口统计学信息。本数据文件未经过压缩。</p><br>
<p>本系列的其他发布版本包括：</p><br>
<p>Switchboard Cellular Part 1 Audio（<a href="../../../LDC2001S13">LDC2001S13</a>）</p><br>
<p>Switchboard Cellular Part 1 转录音频（<a href="../../../LDC2001S15">LDC2001S15</a>）</p><br>
<p>Switchboard Cellular Part 1 转录文本（<a href="../../../LDC2001T14">LDC2001T14</a>）</p><br>
<h3>示例</h3><br>
<p>请查看此<a href="desc/addenda/LDC2004S07.wav" rel="nofollow">示例音频文件</a>以浏览本语料库的样例内容。</p><br>
<h3>更新说明</h3><br>
<p>目前暂无可用更新。</p><br>
<p>部分内容 © 2000、2004 宾夕法尼亚大学董事会</p>

搜集汇总

背景与挑战

背景概述

Switchboard Cellular Part 2 Audio是由LDC开发的英语电话对话数据集，包含约200小时的音频，收集于2000年，专注于蜂窝电话技术，旨在支持语音到文本转换、说话人识别和语言识别等研究。该数据集包括2,020个通话（4,040侧，其中2,950侧为蜂窝电话），参与者性别分布为女性250人和男性169人，数据格式为两通道mu-law样本，采样率8kHz，并附带说话人人口统计和通话详情信息。