accent speech-synthesizer card的用法和样例：
- Choose the voice for the speech synthesizer.
- I won't try to pronounce their names because my speech synthesizer makes a mess of them.
- The example above will make the speech synthesizer play a sound, then speak the headers in a very rich male voice.
- Some unrevealed functions of LR3991 speech synthesizer are studied with the development system.
- Java Speech Synthesizer - Type a sentence and press enter and your computer will speek to you.
- The 12 volunteers tested in the experiment were played words created through a speech synthesizer which were purposely difficult to understand.