MelodyCodecTweaker is an open-source Android customization module (LSPosed/Xposed) that adds audio quality controls to the stock OPPO/OnePlus wireless headphones app. It lets users view and change Bluetooth codec settings (like LDAC, LHDC, AAC, SBC), adjust playback quality and sample rates, toggle LE Audio, and save preferences per earphone. The module works by injecting controls into the app's interface at runtime without modifying any system files or app packages. It includes diagnostic tools to help troubleshoot issues and provides a feedback collection feature. The project is aimed at audio enthusiasts who want more control over their wireless audio experience on ColorOS/OPlus devices.
How It Works
A friend tells you there's a way to unlock better audio quality on your OPPO or OnePlus phone for your wireless earphones.
You download the module and enable it in LSPosed, then restart your phone so it can work its magic in the background.
Right there in your earphone settings, brand new controls appear for choosing your codec, quality level, and how music is sampled.
If you have LDAC earphones, you pick 990 kbps for the best quality. If you prefer connection stability, you choose 330 kbps. You experiment until it sounds just right.
You turn on 'remember this earphone' so every time you connect your favorite earbuds, it automatically applies your preferred settings.
You can enable LE Audio for lower power use and the LC3 codec. Your earphones briefly reconnect, then you hear the difference.
You stick with your favorite codec like LDAC or LHDC, adjusting quality and sample rate for the best wireless sound.
You sit back, play your favorite music, and notice details you never heard before. Your earphones are finally performing at their best, exactly how you want them.
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