<div dir="ltr">------------------------------------------------------------------------<br>Arabic-L: Tue 05 Mar 2013<br>Moderator: Dilworth Parkinson <<a href="mailto:dilworth_parkinson@byu.edu" target="_blank">dilworth_parkinson@byu.edu</a>><br>
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unsubscribe arabic-l ]<br><br>-------------------------Directory------------------------------------<br><br>1) Subject:New LDC corpora<br><br>-------------------------Messages-----------------------------------<br>
1)<br>Date: 05 Mar 2013<br>From:from <span name="Linguistic Data Consortium" style="font-size:13px;font-family:arial,sans-serif">Linguistic Data Consortium</span><span style="font-family:arial,sans-serif;font-size:13px;white-space:nowrap"> </span><span style="font-family:arial,sans-serif;font-size:13px;white-space:nowrap"><a href="mailto:ldc@ldc.upenn.edu" target="_blank">ldc@ldc.upenn.edu</a></span><br>
Subject:New LDC corpora<br><br><div> (1) GALE Phase 2 Arabic Broadcast Conversation Speech Part 1 was developed by LDC and is comprised of approximately 123 hours of Arabic broadcast conversation speech collected in 2006 and 2007 by LDC as part of the DARPA GALE (Global Autonomous Language Exploitation) Program. Broadcast audio for the DARPA GALE program was collected at LDC’s Philadelphia, PA USA facilities and at three remote collection sites. The combined local and outsourced broadcast collection supported GALE at a rate of approximately 300 hours per week of programming from more than 50 broadcast sources for a total of over 30,000 hours of collected broadcast audio over the life of the program.</div>
<div>LDC's local broadcast collection system is highly automated, easily extensible and robust and capable of collecting, processing and evaluating hundreds of hours of content from several dozen sources per day. The broadcast material is served to the system by a set of free-to-air (FTA) satellite receivers, commercial direct satellite systems (DSS) such as DirecTV, direct broadcast satellite (DBS) receivers, and cable television (CATV) feeds. The mapping between receivers and recorders is dynamic and modular; all signal routing is performed under computer control, using a 256x64 A/V matrix switch. Programs are recorded in a high bandwidth A/V format and are then processed to extract audio, to generate keyframes and compressed audio/video, to produce time-synchronized closed captions (in the case of North American English) and to generate automatic speech recognition (ASR) output.</div>
<div>The broadcast conversation recordings in this release feature interviews, call-in programs and round table discussions focusing principally on current events from several sources. This release contains 143 audio files presented in .wav, 16000 Hz single-channel 16-bit PCM. Each file was audited by a native Arabic speaker following Audit Procedure Specification Version 2.0 which is included in this release. The broadcast auditing process served three principal goals: as a check on the operation of LDCs broadcast collection system equipment by identifying failed, incomplete or faulty recordings; as an indicator of broadcast schedule changes by identifying instances when the incorrect program was recorded; and as a guide for data selection by retaining information about a program's genre, data type and topic.</div>
<div><br></div><div>*</div><div>(2) GALE Phase 2 Arabic Broadcast Conversation Transcripts - Part 1 was developed by LDC and contains transcriptions of approximately 123 hours of Arabic broadcast conversation speech collected in 2006 and 2007 by LDC, MediaNet, Tunis, Tunisia and MTC, Rabat, Morocco during Phase 2 of the DARPA GALE (Global Autonomous Language Exploitation) program. The source broadcast conversation recordings feature interviews, call-in programs and round table discussions focusing principally on current events from several sources.</div>
<div>The transcript files are in plain-text, tab-delimited format (TDF) with UTF-8 encoding, and the transcribed data totals 752,747 tokens. The transcripts were created with the LDC-developed transcription tool, XTrans, a multi-platform, multilingual, multi-channel transcription tool that supports manual transcription and annotation of audio recordings. </div>
<div>The files in this corpus were transcribed by LDC staff and/or by transcription vendors under contract to LDC. Transcribers followed LDCs quick transcription guidelines (QTR) and quick rich transcription specification (QRTR) both of which are included in the documentation with this release. QTR transcription consists of quick (near-)verbatim, time-aligned transcripts plus speaker identification with minimal additional mark-up. It does not include sentence unit annotation. QRTR annotation adds structural information such as topic boundaries and manual sentence unit annotation to the core components of a quick transcript. Files with QTR as part of the filename were developed using QTR transcription. Files with QRTR in the filename indicate QRTR transcription.</div>
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