ICSI Meeting Speech

<h3>Introduction</h3><br>
<p>ICSI Meeting Speech was produced by Linguistic Data Consortium (LDC) catalog number LDC2004S02 and ISBN 1-58563-285-6.</p><br>
<p>The ICSI Meeting corpus is a collection of 75 meetings collected at the International Computer Science Institute in Berkeley during the years 2000-2002. The meetings included are "natural" meetings in the sense that they would have occurred anyway: they are generally regular weekly meetings of various ICSI working teams, including the team working on the ICSI Meeting Project. In recording meetings of this type, we hoped to capture meeting dynamics and speaking styles that are as natural as possible given that speakers are wearing close-talking microphones and are fully cognizant of the recording process. The speech files range in length from 17 to 103 minutes, but generally run just under an hour each. Word-level orthographic transcriptions are available as <a href="http://catalog.ldc.upenn.edu/LDC2004T04" rel="nofollow">ICSI Meeting Transcripts</a>.</p><br>
<h3>Data</h3><br>
<p>The collection includes 922 speech files, for a total of approximately 72 hours of Meeting Room speech. The speech is structured as one subdirectory per meeting, containing wavefiles for each channel (and possible .blp file, specifying any censored intervals).</p><br>
<p>The audio was collected at a 48 kHZ sample-rate, downsampled on the fly to 16 kHz. Audio files for each meeting are provided as separate time-synchronous recordings for each channel, encoded as 16-bit linear (big-endian) wavefiles, shorten-compressed in NIST SPHERE format.</p><br>
<p>The meetings were simultaneously recorded using close-talking microphones for each speaker (generally head-mounted, but early meetings contain some lapel microphones), as well as six table-top microphones: four high-quality omnidirectional PZM microphones arrayed down the center of the conference table, and two inexpensive microphone elements mounted on a mock PDA. All meetings were recorded in the same instrumented meeting room.</p><br>
<p>In addition to recording the meetings themselves, the participants were also asked to read digit strings, similar to those found in TIDIGITS, at the start or end of the meeting. This small-vocabulary read-speech component of the recordings -- using the same meeting room, speakers, and microphones -- provides a valuable supplement to the natural conversational data, allowing a factorization of the speech challenges offered by the corpus. For all but a dozen of the meetings included in the corpus, at least some of the participants read digit strings; for the great majority of meetings, all participants did. The digit readings are included as part of the wavefiles for the meeting as a whole and are fully transcribed as part of the associated transcripts.</p><br>
<p>There are a total of 53 unique speakers in the corpus. Meetings involved anywhere from three to 10 participants, averaging six. The corpus contains a significant proportion of non-native English speakers, varying in fluency from nearly-native to challenging-to-transcribe.</p><br>
<h3>Samples</h3><br>
<p>Please listen to this <a href="desc/addenda/LDC2004S02.sph">audio sample</a>.</p><br>
<h3>Sponsorship</h3><br>
<p>The collection and preparation of this corpus was made possible in large part through funding from DARPA, both through the Communicator project and through a ROAR "seedling," the Swiss IM2 project (National Centre of Competence in Research, sponsored by the Swiss National Science Foundation), and a supplementary award from IBM.</p><br>
<h3>Updates</h3><br>
<p>There are no updates available at this time. More information is available at <a href="http://www.ICSI.Berkeley.EDU/Speech/mr" rel="nofollow">http://www.ICSI.Berkeley.EDU/Speech/mr</a>.</p></br>
Portions © 2000-2003 International Computer Science Institute, © 2004 Trustees of the University of Pennsylvania

<h3>简介</h3><br><p>ICSI会议语音数据集由语言数据联盟（Linguistic Data Consortium, LDC）以目录号LDC2004S02及ISBN 1-58563-285-6发布。</p><br><p>ICSI会议语料库收录了2000年至2002年间于伯克利国际计算机科学研究所（International Computer Science Institute, ICSI）采集的75场会议。本语料库中的会议均为自然发生的常规会议：均为ICSI各工作组的定期周会，其中包括ICSI会议项目研究团队的例会。在采集这类会议语音时，我们希望尽可能捕捉自然的会议互动动态与讲话风格——尽管所有发言者均佩戴近距麦克风，且全程知晓录音行为。语音文件时长介于17至103分钟之间，多数单场时长接近1小时。词级正字法转录文本可参见<a href="http://catalog.ldc.upenn.edu/LDC2004T04" rel="nofollow">ICSI会议转录文本</a>。</p><br><h3>数据</h3><br><p>本次采集共包含922条语音文件，总时长约72小时的会议室场景语音。数据按会议分目录存储，每个会议目录下包含各声道的波形文件（以及用于标注被剪辑片段的.blp文件）。</p><br><p>音频采集采样率为48 kHz，实时下采样至16 kHz。每场会议的音频以各声道独立的时间同步录音形式提供，编码格式为16位线性（大端序）波形文件，采用NIST SPHERE格式的shorten压缩算法压缩。</p><br><p>所有会议同时采用两种麦克风采集：一是为每位发言者配备的近距麦克风（多为头戴式，早期会议部分采用领夹式麦克风）；二是6台桌面麦克风：4台高质量全向压力区（Pressure Zone Microphone, PZM）麦克风沿会议桌中心阵列排布，以及2台安装在模拟PDA上的低成本麦克风单元。所有会议均在同一间标准化录音会议室中采集。</p><br><p>除会议本身的录音外，参会者还需在会议开始或结束时朗读类似TIDIGITS数据集的数字串。这部分小词汇量的朗读语音数据——使用相同的会议室、发言者与麦克风设备——可作为自然会话语音数据的有效补充，便于解耦该语料库所涵盖的各类语音挑战。本语料库收录的绝大多数会议中，所有参会者均完成了数字串朗读；仅约12场会议仅有部分参会者参与朗读。数字朗读内容包含在整场会议的波形文件中，并已作为关联转录文本的一部分完成完整标注。</p><br><p>本语料库共包含53名独特的发言者。每场会议的参会人数介于3至10人之间，平均为6人。语料库中包含相当比例的非英语母语发言者，其英语流利程度从接近母语水平到难以转录不等。</p><br><h3>样例</h3><br><p>请收听该<a href="desc/addenda/LDC2004S02.sph">音频样例</a>。</p><br><h3>资助说明</h3><br><p>本语料库的采集与整理工作主要得益于美国国防高级研究计划局（Defense Advanced Research Projects Agency, DARPA）的资助，包括Communicator项目、瑞士IM2项目（瑞士国家科学基金会资助的国家研究中心项目）以及IBM提供的补充拨款。</p><br><h3>更新信息</h3><br><p>目前暂无可用更新。更多信息可访问<a href="http://www.ICSI.Berkeley.EDU/Speech/mr" rel="nofollow">http://www.ICSI.Berkeley.EDU/Speech/mr</a>。</p><br>Portions © 2000-2003 International Computer Science Institute, © 2004 Trustees of the University of Pennsylvania

搜集汇总

背景与挑战

背景概述

ICSI Meeting Speech是一个由Linguistic Data Consortium发布的英语会议语音数据集，包含约72小时的语音，来自2000-2002年间国际计算机科学研究所（ICSI）收集的75次自然团队会议。该数据集的特点是捕捉了真实的会议动态，包括53名说话者（含非英语母语者），并额外包含数字串阅读部分，适用于话语分析、说话人跟踪和语音识别等研究。