Language Bridge is a language translator aiming to provide easy-to-use translation, speech-to-text, and text-to-speech services.
To use Language Bridge on iPhone or Apple Watch, select a language to translate "To," the language selection on the right of your screen. The language to translate "From," on the left of your screen, is always your device's primary languge setting.
Click the Siri icon in the center of your screen, or the Text Input area at the bottom to enter the text you want to translate. You can input this text through voice or keyboard. To input through voice, select the Dictation icon once the keyboard opens, and dictate the text to Siri. To input through keyboard, type in your text once the keyboard opens up on screen.
Language Bridge will then translate your text to the selected language. It will automatically say this translation out loud. If the app does not seem to be saying this translation out loud, ensure your device is not muted and that your device is not on silent mode as these settings restrict the device's speakers.