English (United States - African American) conversational smartphone USE_ASR004 false Conversational Speech United States English 50 hours 2021 en-US Dataset is fully transcribed and time stamped ; Two person conversations recorded on a smartphone covering a broad range of generic topics including clothing, culture, education, finance, food, health, history, hospitality, insurance, media/entertainment, sports, travel/holiday, weather and work. ; Each speaker participates in up to 12 conversations that are 5-15 minutes long. ;Pronunciation lexicon not currently available but can be developed upon request clothing; culture; education; finance; food; health; history; hospitality; insurance; media/entertainment; sports; travel/holiday; weather and work Mono 48 wav Mobile phone Mixed (home, car, public place, outdoor) Appen Global