Yandex SpeechKit Mobile SDK
· The SpeechKit SDK allows you to embed Yandex speech recognition and synthesis, as well as voice activation, into your mobile app.
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window speechkit-3.12.2.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.