GALE Phase 2 Chinese Broadcast News Speech was developed by the Linguistic Data Consortium (LDC)
and is comprised of approximately 126 hours of Mandarin Chinese
broadcast news speech collected in 2006 and 2007 by the Linguistic Data Consortium (LDC) and Hong University of Science and Technology (HKUST), Hong Kong, during Phase
2 of the DARPA GALE (Global Autonomous Language Exploitation) Program.
Corresponding transcripts are released as GALE Phase 2 Chinese Broadcast
Broadcast audio for the GALE program was collected at the Philadelphia, PA USA facilities of LDC
and at three remote collection sites: HKUST (Chinese), Medianet (Tunis, Tunisia) (Arabic),
and MTC (Rabat, Morocco) (Arabic). 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.
The LDC 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. An overview of the system, the sources recorded and the configuration
of the recording laboratory are contained in the Guidelines for Broadcast Audio
Collection Version 3.0 included in this release.
LDC designed a portable platform for remote broadcast collection. This is a
TiVO-style digital video recording (DVR) system that records two streams of
A/V material simultaneously. It supports analog CATV (NTSC and PAL) and FTA
DVB-S satellite programming and can operate outside of the United States. It
has a small footprint, weighs less than 30 pounds and can be transported as carry-on
HKUST collected Chinese broadcast programming using its internal recording system and a portable broadcast collection platform designed by LDC and installed at HKUST in 2006.
The broadcast conversation recordings in this release feature news broadcasts focusing principally on
current events from the following sources: Anhui TV, a regional television station in Mainland China,
Anhui Province, China Central TV (CCTV), a national and international broadcaster in Mainland China
and Phoenix TV, a Hong Kong-based satellite television station.
This release contains 248 audio files presented in FLAC-compressed
Waveform Audio File format (.flac), 16000 Hz single-channel 16-bit PCM. Each
file was audited by a native Chinese 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 the 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 program genre, data type and topic.
Please listen to this
None at this time.
This work was supported in part by the Defense Advanced Research Projects Agency,
GALE Program Grant No. HR0011-06-1-0003. The content of this publication does
not necessarily reflect the position or the policy of the Government, and no
official endorsement should be inferred.
Portions © 2007 Anhui TV, © 2006-2007 China Central TV, © 2006-2007
Phoenix TV, © 2006-2007, 2013 Trustees of the University of Pennsylvania