Restrict Speech Recognition to one language only

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I have one query About Android Speech Recognition.

I want to restrict a speech recognizer to recognize only given/selected language.

For example, if I select "en" as preferred language, speech recognizer should only return English words after Speech to text conversion. And should ignore other languages words like,

If I say "Hola" or "Bonjour", it should return null or should not recognize the word, or no response, etc

I did try EXTRA_ONLY_RETURN_LANGUAGE_PREFERENCE, but no success.

Also, all other links are about how to add multiple languages, but I want opposite of it, I want single language to be recognized by the speech recognizer.

If there is any workaround or if there is some specific way to use EXTRA_ONLY_RETURN_LANGUAGE_PREFERENCE, kindly do share here.

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