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How to convert stereo mp3 songs into 5.1 mp3 song

is there any free software to do that ?

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3 Answers 3

If you're just after playing them via a 5.1 amp, you could use AC3Filter to output stereo as 5.1 surround. But it sounds like you actually want to convert the file itself.

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There's a V.I Stereo to 5.1 Converter VST Plugin Suite.

Install it on your system and use Plogue Bidule, Audiomulch, Steinberg Cubase SX or Nuendo to convert stereo to 5.1 channel sound.

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I'd suggest adding more details and context to your answer. I didn't downvote it but you didn't really explain the steps required. – slm Dec 26 '12 at 20:47

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