MKV \ channel two tracks (English & French) simultaneously to different outputs : EN > speakers, FR > headphones

[Alex Alab Artemiev]

Hello everybody!
My  name  is Alex, I'm an extensive mkv files user, but it's the first time ever I'm asking an mkv related question.
I've got many bilingual movies (Eng+French) and I wish I could watch them in French while everybody else I'm watching them with is listening to the English track.
For instance, so that I could have my French track channeled to my headphones and the English one channeled to the speakers for my friends.
Searching for a solution, I addressed matroska-users at lists.matroska.org
They recommended me to try GStreamer. That's why I'm asking this question here.
Can GStreamer do this kind of channeling? Is it practicable?
I'm using an E-MU sound card with multiple outputs.
Looking forward to reading back from you.
Many thanks.
Kind regards,
Alex
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