Multi-Channel WSJ Audio

Item Name: Multi-Channel WSJ Audio
Author(s): Mike Lincoln, Erich Zwyssig, Iain McCowan
LDC Catalog No.: LDC2014S03
ISBN: 1-58563-674-6
ISLRN: 766-428-479-143-5
Release Date: April 15, 2014
Member Year(s): 2014
DCMI Type(s): Sound
Sample Type: pcm
Sample Rate: 16000
Data Source(s): newswire
Application(s): speech recognition, speaker segmentation and tracking, speaker identification
Language(s): English
Language ID(s): eng
License(s): Multi-Channel WSJ Audio
Online Documentation: LDC2014S03 Documents
Licensing Instructions: Subscription & Standard Members, and Non-Members
Citation: Lincoln, Mike, Erich Zwyssig, and Iain McCowan. Multi-Channel WSJ Audio LDC2014S03. Web Download. Philadelphia: Linguistic Data Consortium, 2014.
Related Works: View


Multi-Channel WSJ Audio (MCWSJ) was developed by the Centre for Speech Technology Research at The University of Edinburgh and contains approximately 100 hours of recorded speech from 45 British English speakers. Participants read Wall Street Journal texts published in 1987-1989 in three recording scenarios: a single stationary speaker, two stationary overlapping speakers and one single moving speaker.

This corpus was designed to address the challenges of speech recognition in meetings, which often occur in rooms with non-ideal acoustic conditions and significant background noise, and may contain large sections of overlapping speech. Using headset microphones represents one approach, but meeting participants may be reluctant to wear them. Microphone arrays are another option. MCWSJ supports research in large vocabulary tasks using microphone arrays. The news sentences read by speakers are taken from WSJCAM0 Cambridge Read News, a corpus originally developed for large vocabulary continuous speech recognition experiments, which in turn was based on CSR-1 (WSJ0) Complete, made available by LDC to support large vocabulary continuous speech recognition initiatives.


Speakers reading news text from prompts were recorded using a headset microphone, a lapel microphone and an eight-channel microphone array. In the single speaker scenario, participants read from six fixed positions. Fixed positions were assigned for the entire recording in the overlapping scenario. For the moving scenario, participants moved from one position to the next while reading.

Fifteen speakers were recorded for the single scenario, nine pairs for the overlapping scenario and nine individuals for the moving scenario. Each read approximately 90 sentences.

The audio data are presented as single channel 16kHz flac compressed wav files.


Please listen to the below samples.


None at this time.

Available Media

View Fees

Login for the applicable fee