CALLFRIEND American English-Southern Dialect

Item Name: CALLFRIEND American English-Southern Dialect
Author(s): Alexandra Canavan, George Zipperlen
LDC Catalog No.: LDC96S47
ISBN: 1-58563-062-4
ISLRN: 405-742-783-280-7
Member Year(s): 1996, 1997
DCMI Type(s): Sound
Sample Type: 2-channel ulaw
Sample Rate: 8000
Data Source(s): telephone conversations
Project(s): LID, GALE, EARS
Application(s): language identification
Language(s): English
Language ID(s): eng
License(s): LDC User Agreement for Non-Members
Online Documentation: LDC96S47 Documents
Licensing Instructions: Subscription & Standard Members, and Non-Members
Citation: Canavan, Alexandra, and George Zipperlen. CALLFRIEND American English-Southern Dialect LDC96S47. Web Download. Philadelphia: Linguistic Data Consortium, 1996.


The CALLFRIEND project supports the development of language identification technology.


The corpus consists of 60 unscripted telephone conversations, lasting between 5-30 minutes. The corpus also includes documentation describing speaker information (sex, age, education, callee telephone number) and call information (channel quality, number of speakers).

For each conversation, both the caller and callee are native speakers of Southern American English. All calls are domestic and were placed inside the continental United States, Canada, Puerto Rico or the Dominican Republic.

Callers in the "Southern" collection of CALLFRIEND American English were identified primarily on the basis of vowel quality patterns that are common among native speakers raised in the southeastern United States (from Texas eastward to the Atlantic coast and from Virginia and Kentucky southward to the Gulf of Mexico). This category also includes a small number of African-American speakers, whose geographic origins may be more dispersed, but who share some of the vowel quality patterns distinctive of Southern white speakers. (Of course, other dialect features involving phonology, syntax and prosody, serve to differentiate these two subgroups within the "Southern" collection.)


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