Fact · Speech recognition
The Linguistic Data Consortium distributes Switchboard-1 Release 2 under its User Agreement for Non-Members, and the licensing instructions depend on membership.
Checked against its source on October 17, 2026
In the source's own words
“License(s): LDC User Agreement for Non-Members Online Documentation: LDC97S62 Documents Licensing Instructions: Subscription & Standard Members, and Non-Members”
Switchboard-1 Release 2 (LDC97S62), John J. Godfrey and Edward Holliman, Linguistic Data Consortium, University of Pennsylvania, 1997, Catalog entry.
Open the original- What it measures
- Switchboard is a corpus of spontaneous telephone conversations, and it is one of the most used test sets for telephone speech. The catalog lists the data under its own item number, LDC97S62.
- What it does not show
- The catalog text checked here does not state a price. Check the LDC catalog for current fees and conditions before you buy or download the corpus.