Czech Broadcast News Speech


Item Name: Czech Broadcast News Speech
Authors: Vlasta Radova, Josef Psutka, Ludek Muller, William Byrne, J.V. Psutka, Pavel Ircing, and Jindrich Matousek
LDC Catalog No.: LDC2004S01
ISBN: 1-58563-280-5
Release Date: Apr 21, 2004
Data Type: speech
Sample Rate: 22050 Hz
Sampling Format: pcm
Data Source(s): broadcast news
Application(s): speech recognition
Language(s): Czech
Language ID(s): ces
Distribution: 2 DVD
Member fee: $0 for 2004 members
Non-member Fee: US $1500.00
Reduced-License Fee: US $750.00
Extra-Copy Fee: US $400.00
Non-member License: yes
Online documentation: yes
Licensing Instructions: Subscription & Standard Members, and Non-Members
Citation: Vlasta Radova, et al.
2004
Czech Broadcast News Speech
Linguistic Data Consortium, Philadelphia

Introduction

Czech Broadcast News Speech contains audio recordings collected from three Czech radio stations (Cesky rozhlas 1 Radiozurnal - CRo1, Cesky rozhlas 2 Praha - CRo2, Cesky rozhlas 3 Vltava - CRo3) and two TV channels (Ceska televize - CTV and Prima TV - Prima). The audio was recorded between February 1 and April 22, 2000, at the Department of Cybernetics, University of West Bohemia in Pilsen.

The corpus was created to support the development of large vocabulary speaker independent speech recognition systems for Czech.

Data

There are 286 audio files, totaling approximately 50 hours of broadcast news. The news do not contain weather forecasts, sports news, or traffic announcements. The audio files are single-channel, 22.05 kHz, 16 bit linear wav files. The stations, channels, number of files and number of hours are listed below:

Radio

Source Files Hours
CRo1 138 30.8
CRo2 90 7.8
CRo3 14 2

TV

Source Files Hours
CTV 22 5.1
Prima 22 4.2

The corresponding transcripts are available as Czech Broadcast News Transcripts. The transcripts were created by native Czech speakers working at the Department of Cybernetics, University of West Bohemia in Pilsen, under the direction of Vlasta Radova. The transcription was done using software provided by the LDC (Transcriber 1.4.1). Those parts of the audio recordings that do not contain speech or where the signal was disrupted were not transcribed. As a consequence, the corpus contains about 23 hours of transcribed speech. The transcriptions are provided in both the ISO-8859-2 and Windows-1250 character set. For an example transcript please click on this example.

Sponsorship

The completion of this corpus was facilitated by funding provided by the Ministry of Education of the Czech Republic (Grants No. MSM235200004 and LN00A063) and by the National Science Foundation (NSF) project no. IIS-9820687 entitled "1999 Language Engineering Workshop for Students and Professionals: Integrating Research and Education (WS99)" under the agreement no. 8004-48231 between the Johns Hopkins University, Baltimore, Maryland, and the University of West Bohemia in Pilsen, Czech Republic.

Updates

There are no updates available at this time.

Content Copyright

Portions 2000 Ceska televize, 2000 Cesky rozhlas 1 Radiozurnal, 2000 Cesky rozhlas 2 Praha, 2000 Cesky rozhlas 3 Vltava, 2000 FTV Premiera, 2004 Trustees of the University of Pennsylvania