Speech corpora are task-oriented

• Speech corpora for research purposes:
  • phonetic research,
  • sociolinguistic research,
  • psycholinguistic research,
  • first language acquisition,
  • second language acquisition,
  • general linguistic research,
  • audiology,
  • speech pathology;
• Speech corpora for technological applications:
  • speech synthesis,
  • speech recognition:
    • knowledge-based vs. stochastic systems,
    • speaker-independent vs. speaker-dependent systems,
    • isolated words vs. continuous speech,
    • corpora for speech recognition research;
  • spoken language systems,
  • speaker recognition/verification:
    • channel conditions,
    • psychological and physiological conditions.