How to Boost Bluetooth Audio Quality on Android Devices?

Android smartphones come with the option of changing the Bluetooth codec depending on the earphones you are using and this helps the earphones decode the audio to its maximum capacity resulting in better sound output.

Understanding Bluetooth Codec
Before digging deeper with the steps, it is important to understand the codec and how it works. Many types of Bluetooth codecs are used by wireless earphones. The most common is SBC (Sub Band Codec) which is a universal codec and almost all Bluetooth audio devices support it. There are many other advanced codecs such as aptX by Qualcomm which are found in smartphones running Qualcomm Snapdragon processors. In addition, Sony has its own codec, called LDAC. There is another codec called AAC that is used as an audio engine in most movie files.

The codec is a program that compresses analog audio and transmits it to earphones via Bluetooth and earphones and then decompresses it back to the audio signal. Advance codes such as AptX, AAC, LDAC are capable of transmitting a large package file at a time and therefore have better audio quality. However, the key here is Bluetooth earphones, to take full advantage of this one must also support these codecs.

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Choosing the right codec and how it works
Okay, codec support is device-dependent, check the earphone support page or even the box to find out what all codecs are supported. Most cheap Bluetooth earphones only support SBC or maximum AAC and codec such as LDAC and aptX are limited to a few relatively expensive Bluetooth earphones.
In most cases, if the headphone supports Qualcomm’s Apex, the device automatically switches to Apex, but in the case of other codecs such as LDAC or AAC, this needs to be done manually.

Change the Bluetooth codec on your smartphone

Step 1: Head of ‘Settings’

Step 2: Scroll to the ‘About’ section and tap on it

Step 3: Look for ’till build number’ and tap on it 7 times until you see a message saying that ‘you are a developer’

Step 4: Once done, return to the Settings page

Step 5: Connect earphones

Step 6: Now, open the developer options’

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Step 7: Scroll down and find the Bluetooth audio codec option

Step 8: Under Bluetooth audio codec, select the codec supported by the earphones

Step 9: Once done, restart the smartphone and enjoy better sound quality.

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