Poor Sound Quality | Bose QuietComfort® Earbuds (2020)

If connected to a computer, disconnect the LE/BLE connection on your computer

Sometimes Windows can automatically connect the LE connection and can cause interference with the audio stream over A2DP.

Go to your PC’s Bluetooth setting menu and look at the connected devices listed
If your Bose headset is showing connected to the Bluetooth profile that has the abbreviation “BLE” or “LE” in the product name, click on the product and select Disconnect or disconnect this Bluetooth profile.

Do you hear static or distorted audio while in noisy environments?

In very loud settings—such as airplane takeoffs, concerts, emergency sirens, or construction zones—your headphones' noise-cancelling microphones can become overwhelmed, which may cause brief crackling or distortion. This can happen even in Quiet or Aware mode.

It’s similar to when someone talks too loudly into a phone—the sound gets distorted until they lower their voice. Your headphones react in the same way to intense external noise.

This is normal and doesn’t damage the product. To reduce it, try moving away from the loud source when possible. For example, on a plane, sitting farther from the engines can help.

Be sure you're wearing the earbuds correctly.

A proper fit is important for comfort and sound quality. If the earbuds are not worn properly or positioned incorrectly, audio and microphone performance may be affected. See Wearing and adjusting your earbuds for more details.

Try disconnecting wireless devices connected to the computer

Wireless devices, such as a mouse or keyboard can cause radio frequency and bandwidth interference with audio on Bluetooth devices. Try disconnecting wireless devices to see if it improves the audio quality.

Check the equalizer settings in the Bose app.

Be sure the bass and treble adjustments are not set too high or too low for your preferences. For more info, see Using the Equalizer settings.

Reset your product.

Much like rebooting a smartphone, your product might need to be reset on occasion to correct minor issues. For more information, see Resetting your product.

Reset your earbuds.

This reset will clear the earbuds memory of previously-connected Bluetooth® devices. It does not restore the factory settings of your earbuds.

Connect the charging case to power.
Place the earbuds in the charging case.
Close the charging case lid for 5 seconds, then open the lid.
In the charging case, press and hold the Bluetooth button for 30 seconds, then release it: The earbud LEDs blink, glow solid white, and then blink blue.
On the device that was previously connected to your earbuds, go to the Bluetooth menu and, in the list of remembered connections, remove your earbuds.
Reconnect your earbuds to the device. For more info, see Connecting a Bluetooth® device .

Try a different app.

If the issue only occurs with a particular app, it is likely related to the app or app settings.

Reboot the Bluetooth® device.

Electronics, such as cell phones, tablets or computers, might need to be reset on occasion to correct minor issues. This is typically done by shutting down the device, then powering it on again.

Check the EQ settings on your Bluetooth® device.

The EQ settings of your Bluetooth device can affect sound. On the device, try setting the EQ to "off" or "flat" and disabling any other sound playback adjustments (i.e. loudness, compression, reverb, etc.). These settings are commonly found in the device's audio settings or in the settings of the app being used to play audio.

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