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MP3 Converter
https://shop.presonus.com/products/software/studio-one-prods/studio-one-add-ons/MP3-Converter-for-Studio-One-Artist
Tech Specs:
Adds professional-quality (up to 320 kB/s) MP3 encoding and drag-and-drop MP3 decoding to Studio One Artist 2.6.2 and higher
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VSTand AU and ReWire Support:
https://shop.presonus.com/products/software/studio-one-prods/studio-one-add-ons/VST-and-AU-and-Rewire-Support