Here is a list of possible sources of Spoken Audio files that might be used for the creation of GPL Acoustic Models.

• Audio Source list:
  • ​Gutenburg audio project
  • ​Wikipedia Spoken Articles
  • CMU:
    • ​CMU Audio Database :
      • ​Microphone array database
      • ​Census (AN4) database
      • ​Let's Go Speech Dialog Data - (for research only)
      • ​CMU_SIN Speech in Noise Database
      • ​PDA database
      • ​Resource Management (RM1) database (no wav - Sphinx mfc only)
      • ​CMU Communicator KAL limited domain
  • Festvox:
    • ​Festvox databases
      • ​CMU ARCTIC 4 single speaker phonetically balanced databases
      • ​CMU_FAF (Facts and Fables) database
      • ​CMU_SIN database Speech in Noise
      • ​CMU Chaplain (for research only)
      • ​CSTR US KED Timit
    • Diphone Databases
      • ​CMU US KAL diphone
      • ​CSTR UK RAB diphone

• ​ISIP Switchboard Audio Database
• ​American Rhetoric
• ​MICASE
• ​TalkBank GNU Audio data

• Hansard Canada
  • ​House of Commons
  • ​Senate
• ​MICASE Michigan Corpus of Academic Spoken English

• Links
  • ​Bookmarks for Corpus-based Linguists
  • ​Corpora and other Language and Speech Data under DICE

Other Possible sources, but with licensing issues:

• ​Buckeye Corpus

(Also see Ticket #22)