1. A method for enhancing a speech database for speech synthesis, comprising: labeling audio files in a primary speech database and a secondary speech database, wherein the primary speech database and the secondary speech database are for the same language; enhancing the primary speech database by placing the labeled audio files from the secondary speech database into the primary speech database; and storing the enhanced primary speech database for use in unit selection concatenative speech synthesis.
1. A method for enhancing a speech database for speech synthesis, comprising: labeling audio files in a primary speech database and a secondary speech database, wherein the primary speech database and the secondary speech database are for the same language; enhancing the primary speech database by placing the labeled audio files from the secondary speech database into the primary speech database; and storing the enhanced primary speech database for use in unit selection concatenative speech synthesis. 5. The method of claim 1 , wherein the audio files in the primary speech database are labeled using a same scheme as the audio files in the secondary speech database.