2026-04-272026-04-272026-04-27https://dspace.univ-tlemcen.dz/handle/112/26075This research memorandum presents an analytical study of the challenges facing voice translation systems in smart assistants, with a special focus on Algerian dialects and idiomatic expressions. The study evaluates the capability of the voice assistant Alexa to understand local linguistic and cultural contexts, both before and after integration with advanced language models such as ChatGPT.Voice TranslationArtificial IntelligenceAlexaChatGPTAlgerian DialectsIdiomatic ExpressionsNatural Language ProcessingCultural AdaptationDeep Learning.Thesis