Xiaomi Bluetooth Audio Quality Bad on Headphones

Xiaomi Bluetooth Audio Quality Bad on Headphones – UK Fix

If your Xiaomi, Redmi, or POCO device sounds noticeably worse over Bluetooth headphones than you expected — tinny, muffled, lacking bass, or poor call quality — this guide covers the most common causes and how to fix them.

Quick Answer:
If Bluetooth audio quality is bad on your Xiaomi, first check your audio codec: Settings → Additional settings → Developer options → Bluetooth audio codec → try switching to a supported codec like AAC or SBC. Then toggle Dolby Atmos in Settings → Sound & vibration → Dolby Atmos and compare the sound. Also check the equalizer in your music app or system settings. Reset the headphones and re-pair them if issues persist.

🔍 Quick Diagnostic Table

What you seeWhat it usually means
Sound tinny or lacking bassCodec issue, Dolby Atmos clash, or missing bass enhancement
Sound quality differs between music and gamesDifferent Bluetooth profiles in use
Sound worse on one device but fine on anotherDevice-specific codec or settings issue
Sound improved after turning Dolby Atmos offAudio enhancement clash
Call quality poor but music fineMicrophone or headset profile issue

🔍 Quick Start – Find Your Path

SymptomMost Likely CauseGo To
Music sounds thin or lacking bassCodec, Dolby Atmos, or equalizer issueSection 1
Game audio quality is bad but music is fineBluetooth profile switchingSection 2
Sound is worse on one device onlyDevice-specific settings issueSection 3
Call quality poor but music sounds normalHeadset profile or microphone conflictSection 4
Audio quality changed after updateSettings or codec resetSection 5

Section 1 – Music Sounds Thin or Lacking Bass

If your music sounds tinny, lacks bass, or generally worse than expected, the issue is almost always the Bluetooth audio codec, Dolby Atmos settings, or the equalizer.

Try these in order:

  1. Toggle Dolby Atmos off temporarily – Settings → Sound & vibration → Dolby Atmos → toggle OFF and compare the sound. Some headphones sound better with Dolby Atmos enabled, while others may sound more natural with it disabled.
  2. Check the Bluetooth audio codec – Settings → Additional settings → Developer options → Bluetooth audio codec. Use the highest-quality codec that both your phone and headphones support reliably. If LDAC or LHDC produces unstable audio, AAC often provides more consistent playback.
  3. Check the equalizer (if available on your device) – Settings → Sound & vibration → Sound effects → Graphic equalizer. Adjust the bass and treble sliders to your preference. Some devices only show the equalizer when headphones are connected.
  4. Disconnect other paired Bluetooth devices – Some devices may automatically reconnect and interfere with the audio stream.
  5. Disable Bluetooth multipoint temporarily – If your headphones support dual-device connection, disable it temporarily to rule out conflicts.
  6. Test the headphones on another device – If they sound fine on another phone, the issue is with your Xiaomi's settings or hardware. If they also sound bad, the issue is likely the headphones themselves.
  7. Optional: Use a third-party equalizer app – If the built-in equalizer doesn't help, try an app like Poweramp Equalizer as a last resort.

Section 2 – Game Audio Quality Is Bad but Music Is Fine

If audio sounds normal when playing music but becomes poor during gaming, the issue is likely related to Bluetooth profile switching.

Why this happens:

  • Games that activate the microphone may switch the connection to the Hands-Free Profile (HFP/HSP), which significantly reduces audio quality.
  • Games that do not use voice chat normally continue using A2DP.

What to do:

  • If possible, check the game's audio settings for a "high quality" or "music mode" option.
  • Use wired headphones or low-latency gaming earbuds for better game audio quality.

Section 3 – Sound Worse on One Device Only

If your Xiaomi sounds worse than another phone when using the same headphones, the issue is likely device-specific.

Try these in order:

  1. Check audio codec support – Go to Developer Options → Bluetooth audio codec and see which codecs are available. Try switching to AAC or SBC if available.
  2. Check for system updates – Some HyperOS updates have changed Bluetooth audio behaviour. Check whether a newer update is available if the problem started immediately after updating. Settings → About phone → System update.
  3. Forget and pair again – Forget the headphones from Bluetooth settings, place them back into pairing mode, then connect them again.
  4. Reset the headphones – Use the reset function in the headphone's companion app (many Bluetooth headphones have firmware updates available through the manufacturer's app) or follow the manufacturer's instructions.
  5. Update headphone firmware – Check the companion app for firmware updates.
  6. Test Safe Mode – Boot into Safe Mode (press and hold Power, then long-press Restart and tap Safe Mode) only if other steps fail. If audio quality improves, a third-party app is causing the issue.

Section 4 – Call Quality Poor but Music Sounds Fine

If music sounds normal but calls have poor audio quality, the issue is likely the Bluetooth headset profile or microphone conflict.

Try these in order:

  1. Check the Bluetooth connection – Disconnect and reconnect the headset. Call quality usually depends on the headset profile (HFP) rather than the Bluetooth audio codec, so switching codecs in Developer Options normally won't improve voice calls.
  2. Check the microphone position – If the headphones have a built-in microphone, ensure it's not blocked.
  3. Test a different headset – If the issue only happens with one headset, the problem is likely the headset's microphone or call profile.

Section 5 – Audio Quality Changed After Update

If Bluetooth audio quality changed after a HyperOS update, the update may have reset codec or sound settings.

Try these in order:

  1. Toggle Dolby Atmos – Section 1.
  2. Check Bluetooth audio codec – Section 1.
  3. Check equalizer settings – Section 1.
  4. Restart your phone – A full reboot can resolve temporary issues.
  5. Check for another update – Sometimes a follow-up patch fixes issues introduced by the previous update.

Why Is Xiaomi Bluetooth Audio Quality Bad?

  • Codec mismatch (most common) – Your phone and headphones may not be using the optimal codec.
  • Dolby Atmos interference – Built-in audio enhancements can clash with headphone tuning.
  • Equalizer settings – The equalizer may be set to a poor preset or flat.
  • Bluetooth profile switching – Gaming or calls may use a different profile than music.
  • Device-specific limitations – Some devices may lack certain codecs.
  • Software update – Updates can reset settings or introduce bugs.
  • High-resolution audio mode – If you're using LDAC or LHDC, try selecting a lower bitrate or switching to AAC to see if sound quality becomes more stable.

⚠️ What NOT to Do

  • Don't force LDAC or aptX HD without checking support – If your headphones don't support them, forcing them may cause connection issues.
  • Don't ignore the equalizer – Adjusting it can significantly improve sound quality.
  • Don't assume a factory reset will fix audio quality – This is rarely necessary and will erase your data.

Quick Questions

Why does my Xiaomi Bluetooth sound tinny or lacking bass?
Most commonly, the Bluetooth codec is set to a low-quality codec, or Dolby Atmos is interfering. Toggle Dolby Atmos and check Developer Options → Bluetooth audio codec.

Which Bluetooth codec is best for Xiaomi headphones?
Use the highest-quality codec that both your phone and headphones support reliably. If LDAC or LHDC is unstable, AAC often provides more consistent playback.

Why does game audio sound worse than music on Xiaomi?
Games that activate the microphone may switch the connection to the Hands-Free Profile (HFP/HSP), which significantly reduces audio quality. Games that do not use voice chat normally continue using A2DP.

Does Dolby Atmos affect Bluetooth audio quality?
Yes. Some Xiaomi devices have built-in Dolby Atmos tuning that can clash with headphone sound. Toggle it off temporarily and compare.

Can a system update cause poor Bluetooth audio?
Yes. Updates can reset codec or sound settings. Check your settings and restart your phone.

How do I improve call quality on Xiaomi Bluetooth headphones?
Check the Bluetooth connection by disconnecting and reconnecting the headset. Call quality usually depends on the headset profile (HFP) rather than the Bluetooth audio codec, so switching codecs in Developer Options normally won't improve voice calls.

Why do my Bluetooth headphones sound worse than wired headphones?
Bluetooth compresses audio before transmission. The final quality depends on the Bluetooth codec, headphone support, and signal stability, so wireless audio may sound different from a wired connection.

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