AI-103: Developing AI Apps and Agents on Azure

Azure Translator performs best when a request's source content is a single language, because language identification and translation both operate on the assumption of one dominant source language per request; a segment that mixes English and Spanish causes the service to mis-detect or mis-translate the portion in the non-dominant language. Splitting each mixed-language transcript segment into single-language sub-segments before translating each one separately ensures every portion is translated correctly and the entire transcript is translated successfully. Treating the whole transcript as one document does not resolve mixed-language content within a single passage, enabling automatic language detection still only selects one source language per request, and forcing English as the source language for every segment would mistranslate the Spanish portions.