I recall a style of language learning where you listen to CDs in which your language and the foreign language are spoken simeltaneously. For example "Hello" is said in one earbud while "Bonjour" is said in the other earbud. What is this style of teaching called?

closed as off-topic by Laure SO - Écoute-nous, Toto, Random, Anne Aunyme, Kii Jul 20 '16 at 9:29

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