fluttering (n.)

• beating
• bickering
• blinking
• dance
• dancing
• distortion
• drumming
• feedback
• flashing
• flicker
• flutter
• flying
• gliding
• hissing
• howling
• hum
• lambency
• play
• playing
• pounding
• quiver
• quivering
• rumble
• scratching
• spattering
• sputtering
• static
• throbbing
• thumping
• ticking
• wavering
• winging
• wow