May 2014, Google acquired Word Lens to improve the quality of visual and voice translation. It is able to scan text or a picture using the device and have it translated instantly. Moreover, the system automatically identifies foreign languages and translates speech without requiring individuals to tap the microphone button whenever speech translation is needed. In November 2016, Google transitioned its translating method to a system called neural machine translation. It uses deep learning techniques to translate whole sentences at a time, which has been measured to be more accurate between English and French, German, Spanish, and Chinese. No measurement results have been provided by Google researchers for GNMT from English to other languages, other languages to English, or between language pairs that do not include English. As of 2018, it translates more than 100 billion words a day. In 2017, Google Translate was used during a court hearing when court officials at Teesside Magistrates' Court failed to book an interpreter for the Chinese defendant. At the end of September 2022, Google Translate was discontinued in mainland China, which Google said was due to "low usage". (see Internet censorship in China) Functions Google Translate can translate multiple forms of text and media, which includes text, speech, and text within still or moving images. Specifically, its functions include: Written Words Translation: a function that translates written words or text to a foreign language. Website Translation: a function that translates a whole webpage to selected languages. Document Translation: a function that translates a document uploaded by the users to selected languages. The documents should be in the form of: .doc, .docx, .odf, .pdf, .ppt, .pptx, .ps, .rtf, .txt, .xls, .xlsx. Speech Translation: a function that instantly translates spoken language into the selected foreign language. Mobile App Translation: in 2018, Google introduced its new Google Translate feature called "Tap to Translate", which made instant translation accessible inside any app without exiting or switching it. Image Translation: a function that identifies text in a picture taken by the users and translates text on the screen instantly by images. Handwritten Translation: a function that translates language that are handwritten on the phone screen or drawn on a virtual keyboard without the support of a keyboard. Bilingual Conversation Translation: a function that translates conversations in multiple languages. Transcription: a function that transcribes speech in different languages. For most of its features, Google Translate provides the pronunciation,