Building a 5.1ch Surround Upmixer GUI with Python & FFmpeg Ever wanted to watch a movie or listen to live music with true surround sound, but only had a stereo MP3 file? I built a desktop GUI application that upmixes 2-channel stereo audio into 6-channel AC-3 (Dolby Digital 5.1) — fully customizable with slider controls and one-click presets. 🔗 GitHub : https://github.com/amekusa03/mp3-to-ac3-converter What it does Fully adjustable surround parameters via ...