By vibration of vocal chords..
High frequency of vibration/low pitch = sweet sound
Low frequency of vibration/high pitch = harsh sound
High amplitude = loud sound
loud
Drums, trumpet, violin, and many more, make loud sounds.
monkeys
Yes
Loud speakers can produce ultrasonic waves. But since the normal purpose of loud speakers is to produce sounds for people to hear, there is seldom a reason to produce sounds that people can't hear (other than to annoy certain animals).
Jet engines produce a variety of incredibly loud sounds. These sounds can potentially make you go deaf if you are too close.
Sound is measured in Decibels. This is judged based on the human hearing. You can use a decibel meter to detect just how loud a sound is.
if they are in a void no matter how much the object vibrates it won't produce any sound waves
Thé human's larynx (voicebox) vibrates to produce sound
The human voice typically ranges from 85 to 255 Hz. Through technology, human's can produce any frequency sound.
No.
Sound is measured in Decibels. This is judged based on the human hearing. You can use a decibel meter to detect how loud a sound is.