Abstract: Systems and methods for generating a transcription or a translation. One system includes an electronic processor configured to detect a voice communication initiated by a sender, determine a geographic location of the sender, and access a stored mapping for the geographic location including a plurality of languages. The electronic processor is also configured to determine a plurality of candidate languages by selecting a subset of the languages included in the stored mapping, transcribe audio data received from the sender using a language model associated with each candidate language to generate a plurality of transcriptions, and determine a confidence score for each transcription. The electronic processor is further configured to select one of the transcriptions based on the confidence scores, provide the one of the plurality of transcriptions to the receiver, and update the stored mapping based on the transcription provided to the receiver.