Can You Actually Listen to Music Underwater? Testing Solutions

The Physics of Underwater Sound

• 💡 Sound travels faster and further in water due to denser molecules, but high frequencies are lost, while low frequencies travel extremely far.
• ⚠️ The water surface can act as a reflector, creating an "acoustic house of mirrors" if sound is not properly managed.
• 🎧 Standard waterproof speakers are not ideal underwater due to Bluetooth issues and the physics of sound propagation.

Custom Underwater Speaker System

• 🔊 Renzo, a local expert, designs custom professional underwater audio solutions, including specialized speakers.
• 🛠️ These speakers use a piezoelectric transducer encased in epoxy resin to vibrate a heavy mass, transferring sound to the water effectively.
• 🏊 The system is designed for synchronized swimming, allowing coaches to play music and communicate with swimmers underwater.
• ✅ Tested in a pool, the custom speaker provided surprisingly good clarity and consistent volume, even while swimming laps.

Bone Conduction Headphones for Swimming

• 🎧 Shokz OpenSwim Pro headphones use bone conduction to vibrate the skull directly, bypassing the eardrums.
• 🎶 These headphones have built-in MP3 players and can also pair via Bluetooth, though control can be cumbersome.
• 🤔 Fit is crucial; the sound quality can vary significantly depending on the exact placement of the vibrating pads.
• ⚠️ While usable for casual listening, they are not ideal for synchronized swimming due to the lack of a shared audio source for perfect sync.

Waterproof Bluetooth Speakers

• 💧 The Monster S620 is an IPX8 rated speaker that is submersible but not designed for underwater music playback.
• ❌ It suffers from Bluetooth connectivity issues underwater and poor sound quality, with the added downside of floating.
• 🚫 While it won't be damaged by submersion, it is not a viable solution for listening to music while swimming.