- Sonic Amplification
- Sonorus (Harry Potter)
- Sound/Sonic Augmentation
User can increase the strength, duration, and potential of sound to it's fullest, the effects may change depending on the original effects of the sound that has now been amplified.
- User cannot create sound with this power, only amplify already existing one.
- If there is no sound, the power has no effect.
- May be limited to certain sounds.
- Bards (AD&D)
- Black Canary (Arrowverse); via Canary Cry
- Aang (Avatar: The Last Airbender)
- Cell (Dragon Ball Z)
- Cobra (Fairy Tail)
- Julia Munberk (Freezing)
- Users of Sonorus Charm (Harry Potter)
- King (I Became the Chef of the Dragon King); via Magician's magic
- Colbob (Invisible Dragon)
- Koichi Hirose (JoJo's Bizarre Adventure Part IV Diamond are Unbreakable) via Echoes: Act 1 /2
- Yoshinobu Gakuganji (Jujutsu Kaisen)
- Kyoka Jiro (My Hero Academia)
- Present Mic (My Hero Academia)
- Dosu (Naruto)
- Toxtricity (Pokémon); via Punk Rock ability
- Cassie (Star Darlings)
- Musa (Winx Club)
- SCP-498 - 11 Minute Snooze (SCP Foundation); every 11 minutes unsnoozed plus 10 seconds
- Shriek's suit (Batman Beyond)
- Omni-Directional-Amplifinator (Phineas and Ferb)