Santa Barbara Corpus of Spoken American English Part III

Item Name: Santa Barbara Corpus of Spoken American English Part III
Author(s): John W. Du Bois, Robert Englebretson
LDC Catalog No.: LDC2004S10
ISBN: 1-58563-308-9
ISLRN: 801-946-303-326-6
Release Date: September 23, 2004
Member Year(s): 2004
DCMI Type(s): Sound, Text
Sample Type: pcm
Sample Rate: 22050
Data Source(s): microphone speech
Project(s): EARS, GALE, Talkbank
Application(s): discourse analysis, prosody
Language(s): English
Language ID(s): eng
License(s): LDC User Agreement for Non-Members
Online Documentation: LDC2004S10 Documents
Licensing Instructions: Subscription & Standard Members, and Non-Members
Citation: Du Bois, John W., and Robert Englebretson. Santa Barbara Corpus of Spoken American English Part III LDC2004S10. Web Download. Philadelphia: Linguistic Data Consortium, 2004.
Related Works: View


Santa Barbara Corpus of Spoken American English Part III was produced by the Linguistic Data Consortium (LDC) and contains 6 hours of conversational English audio as well as associated transcripts.

Santa Barbara Corpus of Spoken American English Part III is based on hundreds of recordings of natural speech from all over the United States, representing a wide variety of people of different regional origins, ages, occupations, and ethnic and social backgrounds. It reflects many ways that people use language in their lives: conversation, gossip, arguments, on-the-job talk, card games, city council meetings, sales pitches, classroom lectures, political speeches, bedtime stories, sermons, weddings, and more.

The corpus was collected by: University of California, Santa Barbara Center for the Study of Discourse (Director: John W. Du Bois (UCSB), Authors: John W. Du Bois and Robert Englebretson. Associate Editors: Wallace L. Chafe (UCSB), Charles Meyer (UMass, Boston), and Sandra A. Thompson (UCSB)).

Santa Barbara Corpus of Spoken American English Part III is also part of the International Corpus of English (ICE) (Charles W. Meyer, Director), representing the American Component.

For software and additional data resources, please refer to the following sites: TalkbankInternational Corpus of English.

The first two parts of this collection can be found as:


The audio data consists of 16 wave format speech files, recorded in two-channel pcm, at 22050Hz. The speech files total 1.8 GB, representing over 116 K-words (thousands of words) and over 9K unique words in transcription.

The gender breakdown of subjects is 40 female, 19 male.

The transcripts are in .trn format with the following structure:

2.660 2.805 JOANNE: But,
2.805 4.685 so these slides be real interesting.
6.140 6.325 KEN: ... Yeah.
6.325 7.710 I think it'll be real interesting

Personal names, place names, phone numbers, etc., in the transcripts have been altered to preserve the anonymity of the speakers and their acquaintances and the audio files have been filtered to make these portions of the recordings unrecognizable. Pitch information is still recoverable from these filtered portions of the recordings, but the amplitude levels in these regions have been reduced relative to the original signal. A separate filter list file (.flt) associated with each transcript/waveform file pair is provided to list the beginning and ending times of the filtered regions. The file sbc040.flt is empty indicating there was no personal information to filter out.

The filtering was done using a digital FIR low-pass filter, with the cut-off frequency set at 400 Hz. The effect of the filter was gradually faded in and out at the beginning and end of the regions over a 1,000 sample region, roughly 45 milliseconds, to avoid abrupt transitions in the resulting waveform.


The completion and release of this corpus was facilitated by funding extended by the Talkbank project. Talkbank is an interdisciplinary research project funded by a five-year grant (BCS-998009, KDI, SBE) from the National Science Foundation to Carnegie Mellon University and the University of Pennsylvania.

Produced at the LDC by Nii Martey.


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