Emily ParkerBy Emily Parker

Updated November 2026

A windows 10 bluetooth audio codec decides how your PC compresses sound before sending it to wireless headphones or speakers. In this guide, you’ll learn how to check which codec your connection is using, what Windows 10 supports by default, and how to get better quality when your hardware allows it. Most of the work happens in a few settings screens, so you won’t need third-party software for the basics.

What Windows 10 Supports by Default

Windows 10 handles Bluetooth audio through the operating system and the adapter driver. Most built-in setups use SBC, the baseline codec required for all Bluetooth audio devices. Many newer systems and drivers also support AAC, and some headsets and adapters add aptX or LDAC when both sides agree on it. Which codec you actually get depends on three things: your PC’s Bluetooth adapter, the driver version, and the headphones.

Shopping for one? See our guide: Bluetooth Codec Changer Windows: 8 Best Picks for PC Audio (2026).

How to Check Your Current Codec

  1. Pair and connect your headphones, then open Settings > Devices > Bluetooth & other devices.
  2. Confirm the device shows as connected for audio, not just paired.
  3. Open Device Manager, expand Sound, video and game controllers, and check the Bluetooth audio entry for the active endpoint.
  4. If your headphone or adapter companion app shows the codec, use that instead. It is often the most reliable indicator.

Many standard Windows 10 screens don’t display the codec name directly, so the app or the Bluetooth adapter’s own utility is often the quickest way to confirm it.

How to Switch to a Better Codec

Update the Bluetooth Driver

Open Device Manager, right-click your Bluetooth adapter, and choose Update driver. Driver updates from the PC or adapter maker often add codec support that the generic Windows driver lacks.

Use the Headphone or Adapter App

Many manufacturers offer a companion app that lets you choose between SBC, AAC, aptX, or LDAC. This is usually the only way to force a higher-quality codec when Windows doesn’t offer a menu for it.

Check Both Ends of the Connection

A codec only works when both the PC and the headphones support it. If your headphones list aptX but your adapter only does SBC, the connection will fall back to SBC. Check the specification sheet from each maker before troubleshooting.

Common Mistakes

  • Assuming a higher-numbered codec is always better. Latency and stability can matter more for video or calls.
  • Forgetting to reconnect after changing a codec setting, which can leave the old one active.
  • Using a generic Bluetooth driver from the Windows update catalog without checking the adapter maker’s site.
  • Expecting high-quality codecs over a cheap USB adapter that only supports SBC.
  • Ignoring battery impact. Higher-bitrate codecs usually drain headphones faster.
  • Bluetooth 5.0 USB adapter with aptX or LDAC support. A better adapter gives Windows access to more codecs. View on Amazon
  • Bluetooth transmitter with low-latency mode. Useful if you want a dedicated codec for gaming or video. View on Amazon

FAQ

Does Windows 10 support AAC?

Windows 10 supports AAC on many systems, but only when the Bluetooth adapter and driver both handle it. Check your adapter’s specifications if AAC doesn’t appear as an option.

Can I force aptX on Windows 10?

Usually only if your adapter and headphones both support aptX, and often only through the manufacturer’s app. Windows itself rarely exposes a manual aptX switch.

Why does my audio sound worse than expected?

The connection may be falling back to SBC, or the driver may be outdated. Confirm the active codec and update the adapter driver first.

Conclusion

To improve your windows 10 bluetooth audio codec setup, start by checking which codec is active, then update the driver and confirm both devices support the same option. If you need more control, a companion app or better adapter often makes the biggest difference. For step-by-step help on related devices, see Windows 11 Bluetooth Codec: How to Check and Switch to aptX or LDAC and Bluetooth Codec Changer PC: How to Switch Codecs on Windows.

Ready to choose one?

Emily Parker

About Emily Parker

Emily Parker is part of our editorial team and reviews and edits our headphone tech & types guides, checking product details against manufacturer specifications and owner feedback.