My BRAVIA TV is experiencing unclear dialogues or having distorted sound

• To return all sound settings to factory default settings.
  Go to Settings → Display & Sound → Sound → Reset → Select Yes when prompted "Reset to default?"
  
• You can also adjust the equalizer on the TV if you experience certain issues.
  
  The following will depend on your TV settings.
  • Select Sound → Sound customisation → Equaliser.
  • Select Sound → Advanced settings → Sound mode related → Equalizer.

    Issues	Troubleshooting
    Voices are difficult to hear	Adjust the 125 Hz and 250Hz equalizer
    Sound is uneven	Lower the 125 Hz equalizer
    Sound is high-pitched and loud	Raise the 125 Hz equalizer Lower the 2 KHz/4 KHz/8 KHz equalizers
    The bass sound level is too low or too high	Adjust the 125 Hz equalizer

• Have you ever had an experience where it is hard to hear the voice of the commentator during a football game? Depending on your TV, you can either
  • Adjust the volume of the voice and ambient audio using the Voice Zoom function
  • Adjust the Dialogue enhancer
    Go to Settings → Display & Sound → Sound → Sound customisation → Dialogue enhancer (Emphasises voice.)
    • Setting Values: Min (0) to Max (+6)
    • +1~+6: Emphasize voice
• If you want to keep the volume level constant for all programs and inputs.
  Select Settings → Display & Sound → Sound → Advanced auto volume → Setting Values: Off or On
• You may also try adjusting the dynamic range of your TV to either Standard or Compressed mode.
  
  • Standard: A setting that faithfully reproduces the preset original volume level for the relevant content. This mode takes the widest dynamic range (the difference between the quietest and loudest sounds). Because signals are played back directly, quiet signals remain quiet and loud signals remain loud.
  • Compressed: A setting that adjusts and reproduces the volume level difference with other content. This mode compresses the volume difference and increases the overall volume. The audio is easier to hear, regardless of the dynamic range of the sound source.

You can refer to this video tutorial for tips or refer to steps below

Tip: Learn how to turn captions on or off when watching Internet videos from YouTube

• To return all sound settings to factory default settings.
  Go to Settings → Display & Sound → Sound → Advanced → Reset
• If you experience low sound volume on your TV, which is often resolved by increasing the volume offset to the maximum setting, ensuring optimal sound output
  
  Go to Settings → Display & Sound → Sound → Volume level → Volume offset
  • Adjust the sound level of the current input relative to other inputs.
  • Setting Values: Min (-6) to Max (+6)
• Have you ever had an experience where it is hard to hear the voice of the commentator during a football game? Depending on your TV, you can either
  • Adjust the volume of the voice and ambient audio using the Voice Zoom function
  • Adjust the Dialogue enhancer
    Go to Settings → Display & Sound → Sound → Sound customisation → Dialogue enhancer (Emphasises voice.)
    • Setting Values: Min (0) to Max (+6)
    • +1~+6: Emphasize voice
  -
• You may also try adjusting the dynamic range of your TV to either Standard or Compressed mode.
  
  • Standard: A setting that faithfully reproduces the preset original volume level for the relevant content. This mode takes the widest dynamic range (the difference between the quietest and loudest sounds). Because signals are played back directly, quiet signals remain quiet and loud signals remain loud.
  • Compressed: A setting that adjusts and reproduces the volume level difference with other content. This mode compresses the volume difference and increases the overall volume. The audio is easier to hear, regardless of the dynamic range of the sound source.
• If you want to virtually reproduce realistic surround sound.
  Go to Settings → Display & Sound → Sound → Sound customisation → Surround → Setting Values: Auto, On or Off
• If your TV is wall mounted, we will recommended you to select the appropriate position (Table Top or Wall Mount) based on the installation type. This ensures balanced sound output.
  
  Select Settings → Display & Sound → Sound → TV position

If the issue persist, make sure the software of your TV is up to date, and If the issue is not resolved after performing a power reset, reset the TV to the original factory settings.

• To return all sound settings to factory default settings.
  Go to Settings → Display & Sound → Sound → Reset
• You can also adjust the equalizer on the TV if you experience certain issues.
  
  The following will depend on your TV settings.
  • Select Sound → Sound customisation → Equaliser.
  • Select Sound → Advanced settings → Sound mode related → Equalizer.

    Issues	Troubleshooting
    Voices are difficult to hear	Adjust the 125 Hz and 250Hz equalizer
    Sound is uneven	Lower the 125 Hz equalizer
    Sound is high-pitched and loud	Raise the 125 Hz equalizer Lower the 2 KHz/4 KHz/8 KHz equalizers
    The bass sound level is too low or too high	Adjust the 125 Hz equalizer

• If your TV is wall mounted, we will recommended you to select the appropriate position (Table Top or Wall Mount) based on the installation type. This ensures balanced sound output.
  
  Select Settings → Display & Sound → TV position
• If you experience low sound volume on your TV, which is often resolved by increasing the volume offset to the maximum setting, ensuring optimal sound output
  
  Select Sound → Volume level → Volume offset
  • Adjust the sound level of the current input relative to other inputs.
  • Setting Values: Min (-6) to Max (+6)
• You may also try adjusting the dynamic range of your TV to either Standard or Compressed mode.
  
  • Standard: A setting that faithfully reproduces the preset original volume level for the relevant content. This mode takes the widest dynamic range (the difference between the quietest and loudest sounds). Because signals are played back directly, quiet signals remain quiet and loud signals remain loud.
  • Compressed: A setting that adjusts and reproduces the volume level difference with other content. This mode compresses the volume difference and increases the overall volume. The audio is easier to hear, regardless of the dynamic range of the sound source.
• Have you ever had an experience where it is hard to hear the voice of the commentator during a football game? Depending on your TV, you can either
  • Adjust the volume of the voice and ambient audio using the Voice Zoom function
  • Adjust the Dialogue enhancer
    Go to Settings → Display & Sound → Sound → Sound customisation → Dialogue enhancer (Emphasises voice.)
    • Setting Values: Min (0) to Max (+6)
    • +1~+6: Emphasize voice
• If you want to keep the volume level constant for all programs and inputs.
  Select Sound → Advanced auto volume → Setting Values: Off or On
• If you want to virtually reproduce realistic surround sound.
  Select Sound → Sound customisation → Surround → Setting Values: Auto or OFF

If the issue persist, make sure the software of your TV is up to date, and If the issue is not resolved after performing a power reset, reset the TV to the original factory settings.