To sign the word "acoustics," use both hands to make the letter A sign and then bring them together to form a cup shape in front of your mouth, simulating…
Acousticophobia is signed by first creating a "C" handshape with your dominant hand and placing it near your ear, then pulling it away and making a scared facial expression.
To sign the word "acoustically," use your dominant hand to make a "C" handshape and move it in front of your mouth while opening and closing your fingers, mimicking sound…
To sign the word "acoustic," use both hands to make the letter "A" shape and place them on either side of your face, near your ears. Then, move your hands…
To sign the word "acousmatic," place your non-dominant hand in front of your chest with fingers extended and palm facing out. Then, bring the index finger of your dominant hand…