The Ambassador interpreter is much more than just an app. It is an over-the-ear speaker device that also contains multiple directional microphones. It works by connecting to an app on a registered user's smartphone via Bluetooth, so it mostly just requires that the phone being used be within close proximity of the people speaking into and listening to the devices.
Say you're an officer who speaks English taking a statement from a Spanish-speaking witness. You're each wearing an Ambassador interpreter over one ear. When the witness speaks, Ochoa says the device "sends that speech signal to our cloud-based translation system, where it transcribes and translates and resynthesizes the foreign language into your native language, which is then heard in your Ambassador device."
One officer can speak with up to three other people to include a total of four different languages if needed. Usually, the officer would wear one Ambassador interpreter over his or her ear and give a second one to the other person to wear over their ear, so both can speak in their own language, and hear the other person's speech in their own native language. Audio and visual notifications let both parties know their speech is being captured.
The best option is for the officer to select and set the language to be translated in the app itself before the conversation starts, says Ochoa. There are currently 20 languages to choose from. This selection is typically done as the officer is pairing the over-the-ear devices to the phone and setting up a connection so they are ready to be used.
But sometimes the officer might not recognize the language the other person is speaking. For those situations, Waverly Labs is developing automatic language detection to take the guesswork out of language selection.