1E Translation handles a great deal of audio or video transcription, subtitling, and voice-over annually: 

The source of languages of the audio or video materials are first transcribed by native speakers and then translated into the target languages, and subtitling and voice-over are conducted according to our clients’ requirements. We have provided services to multiple companies in translating and producing their TV promos, films, internal videos and other audio/video materials, including comprehensive services of audio and video transcription, subtitling, editing, and voice-over. Such services are charged by the minute; less-than-one-minute assignments will amount to one minute’s bill.