Is there an java API to retrieve the sound for word pronunciation?

Most of the dictionary sites provide a mechanism to hear the sound of the word, are there API(s) which allow you to retrieve this sound file. eSpindle seems to do this, but I 开发者_开发技巧don't think this is free.

I found forvo which does this.

Checkout freetts - it is a text to speech synthesizer written entirely in Java and it is free.