n.a hole in a soundboard (as of a violin) designed to resonate with the tones

Sound Hole
Sound Hole
Sound Hole
DOWN HOLE MUD SOUND SPEED MEASUREMENT BY USING ACOUSTIC SENSORS WITH DIFFERENTIATED STANDOFF
Sound hole sum rule and the dipole moment of the violin
Seven-hole hollow polyester fibers as reinforcement in sound absorption chlorinated polyethylene composites
Time variability of pore water chemistry in recent carbonate sediments, Devil's Hole, Harrington Sound, Bermuda
Air cavity modes in the resonance box of the guitar: the effect of the sound hole
Scattering of Sound Waves by a Canonical Acoustic Hole
Sound modes in holographic hydrodynamics for charged AdS black hole
Marine bacterioplankton community turnover within seasonally hypoxic waters of a subtropical sound: Devil's Hole, Bermuda
Measurement and physical modelling of sound hole radiations of lutes
Acoustic clouds: standing sound waves around a black hole analogue