GALE Phase 2 Chinese Broadcast News Speech


Item Name: GALE Phase 2 Chinese Broadcast News Speech
Authors: Kevin Walker, Christopher Caruso, Kazuaki Maeda, Denise DiPersio, Stephanie Strassel
LDC Catalog No.: LDC2013S08
ISBN: 1-58563-658-4
Release Date: Oct 16, 2013
Data Type: speech
Sample Rate: 16000 Hz
Sampling Format: pcm
Data Source(s): broadcast news
Project(s): GALE
Application(s): speech recognition
Language(s): Chinese
Language ID(s): cmn
Distribution: 2 DVD, Web Download
Member fee: $0 for 2013 members
Non-member Fee: US $2000.00
Reduced-License Fee: N/A
Extra-Copy Fee: US $400.00
Non-member License: yes
Online documentation: yes
Licensing Instructions: Subscription & Standard Members, and Non-Members
Citation: Kevin Walker, et al.
2013
GALE Phase 2 Chinese Broadcast News Speech
Linguistic Data Consortium, Philadelphia

Introduction

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 News Transcripts (LDC2013T20).

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 luggage.

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.

Data

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.

Samples

Please listen to this audio sample.

Updates

None at this time.

Acknowledgment

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.

Content Copyright

Portions 2007 Anhui TV, 2006-2007 China Central TV, 2006-2007 Phoenix TV, 2006-2007, 2013 Trustees of the University of Pennsylvania