The project was originally open-source. The code and older free versions are still available on GitHub . However, the free version on GitHub has some caveats:
Peter F. (often referred to as morphx or refixion on GitHub) Platform: Windows (Windows 7, 8, 10, and 11)
Your headphones might support Sony’s LDAC or Qualcomm’s aptX, but Windows often defaults to the lower-quality SBC. Top Free Alternatives and Solutions 1. Alternative A2DP Driver (The Gold Standard) alternative a2dp driver free
Ensure your headphones actually support the codec you want (e.g., Bose usually supports AAC; Sony supports LDAC).
Here is a summary of the paper, context, and the "free" solution you are looking for. The project was originally open-source
If you are looking to use this driver for free without paying the license fee, you are looking for the .
Historically, Microsoft Windows' native Bluetooth stack prioritized the "Hands-Free" profile (HFP/HSP) which is designed for voice calls and has low audio quality (mono, low bitrate). It did not natively support high-quality audio codecs like aptX, aptX-HD, or LDAC for a long time, leaving users stuck with the default SBC codec or forced into the Hands-Free mode. (often referred to as morphx or refixion on
The most popular software in this category is literally named "Alternative A2DP Driver." While it offers a paid version, it provides a that allows users to test if their hardware is compatible with high-bitrate LDAC or aptX.