×

Method and apparatus for rapid acoustic unit selection from a large speech corpus

  • US 6,697,780 B1
  • Filed: 04/25/2000
  • Issued: 02/24/2004
  • Est. Priority Date: 04/30/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of selecting acoustic units from an acoustic unit database for synthesizing speech, comprising:

  • forming a concatenation cost database, a concatenation cost being a measure of the mismatch between an acoustic unit sequential pair, wherein the concatenation cost database comprises a selected subset of concatenation costs of possible acoustic unit sequential pairs of the acoustic unit database;

    selecting one or more acoustic units from the acoustic unit database;

    determining whether a concatenation cost of an acoustic unit sequential pair resides in the concatenation cost database;

    extracting the concatenation cost of the acoustic unit sequential pair from the concatenation cost database if the concatenation cost database contains the concatenation cost of the acoustic unit sequential pair; and

    assigning a default value to the concatenation cost of the acoustic unit sequential pair if the concatenation cost database does not contain the concatenation cost of the acoustic unit sequential pair.

View all claims
  • 10 Assignments
Timeline View
Assignment View
    ×
    ×