TextAloud from NextUp.com is one of the world's most popular text to speech tool. TextAloud comes with several really good human-like voices. You can save time and money if you use this tool to record your initial audios for your eLearning applications, getting all the corrections in place for feedback, and then doing your final recordings with your audio expert or outsource the work. You also may find that you are perfectly happy with this type of audio in your final products. Once you have your audio scripts, you can use this tool to very quickly create the audio files and save them as either wav or mp3.