5 steps to have the best Bluetooth audio quality on your mobile

Imagine escorting your favorite music and noticing the sound is flat, distant, as if something doesn't fit. Many people think it's the headphones' fault, but the reality is different. A small hidden adjustment on your phone can completely transform Bluetooth audio quality.

If you are one of those who use wireless headphones or portable speakers, you will surely want to know how to choose the right codec. This technical detail is key and often goes unnoticed, but it makes the difference between mediocre sound and an almost professional audio experience.

What is a Bluetooth codec and why does it matter?

The invisible translator of music

Codecs are systems that compress and decompress audio so your phone and headphones can understand each other. Without an efficient codec, music loses quality, distortions appear, and detail is lacking.

For example, the most basic codec, SBC, is the standard used by most phones to guarantee compatibility but sacrifices quality to maintain a stable connection.

The difference between common and advanced codecs

There are codecs that noticeably improve quality. AAC is Apple’s favorite, an option that balances quality and battery consumption well. On the other hand, for Android, codecs like aptX, aptX HD, LDAC, or LHDC offer a much higher level of fidelity, with transmissions at high speeds and support for high-resolution audio.

But beware: it’s useless to activate an advanced codec if your headphones don’t support it. Compatibility is key to obtaining real improvement.

How to activate the hidden setting that improves Bluetooth audio

Accessing developer options

To access codec settings on Android, you need to activate a nearly unknown menu: developer options. The process is simple, but few people know it:

• Open "Settings" and go to "About phone."
• Find the "Build number".
• Tap it 7 or 8 times until the activation notification appears.

Once activated, you will find a new "Developer options" menu under "System" or in the same settings menu.

Selecting the quality Bluetooth codec

Inside "Developer options," look for "Bluetooth Audio Codec." There you will see a list of available codecs depending on your phone model and version.

Choose among LDAC, LHDC, aptX, or AAC according to your headphones' compatibility. This change can significantly increase the clarity, depth, and richness of the sound.

Which codecs offer the best experience and for whom?

Codecs for iPhone users

Apple bets on AAC, which works very well within its ecosystem and improves quality compared to the standard SBC. If you have an iPhone and compatible headphones, this is the ideal setting.

The best options for Android

Android offers more variety. LDAC, developed by Sony, allows transmission up to 990 Kbps and supports high-resolution audio up to 32 bits/96 kHz, which means a much richer sound experience.

LHDC is a lesser-known but equally powerful alternative, while aptX and aptX HD offer a good balance for mid-range and high-end devices.