In this section, we will discuss the frequently used libraries for speech recognition.
From the documentation:
"TLSphinx is a Swift wrapper around Pocketsphinx, a portable library, that allow an application to perform speech recognition without the audio ever leaving the device."
It was released under the MIT license.
Note
GitHub repository: https://github.com/tryolabs/TLSphinx
This free iOS library provides speech recognition and text-to-speech for Chinese, French, Spanish, English, Dutch, Italian, and German languages. The models were released under different licenses, with some of them being commercially-friendly. It has an Objective-C and Swift APIs. Paid plugins are available.
Note
Official site: http://www.politepix.com/openears/