reflection of sound
Reflection of Sound:
When sound reflects off a special wrapped surface called a parabola, the reflection will bounce out in a straight line no matter where it originally hits. Several stages are designed as parabolas so the sound will go directly into the audience, instead of bouncing around on stage. If the parabola is closed off by a new curved surface, it is called an ellipse. Sound will travel from one focus to another focus, no matter where it strikes the wall. A whisper gallery is designed as an ellipse. If your friend stands at one focus and you stand at other focus, his whisper will be heard clearly by you. No one in the rest of the room will hear anything. Having problem with Angular Speed Equation keep reading my upcoming posts, i will try to help you.
Causes of reflection:
Reflection of sound waves on surfaces can direct to one of two phenomenons - an echo or a reverberation. A reverberation often occurs in a small room with width, height, and length dimensions of approximately 17 meters or less. Why the magical 17 meters? Affect of a particular sound wave upon the brain endures for more than a small fraction of a second; the human brains keep a sound in memory for up to 0.1 seconds. If a reflected sound wave reaches the ear within 0.1 seconds of the primary sound, then it seems to the person that the sound is prolonged.
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How does sound reflected to every point in the room?
Reflection of sound waves on surfaces can direct to one of two phenomenons - an echo or a reverberation. A reverberation often occurs in a small room with width, height, and length dimensions of approximately 17 meters or less. Why the magical 17 meters? Affect of a particular sound wave upon the brain endures for more than a small fraction of a second; the human brains keep a sound in memory for up to 0.1 seconds. If a reflected sound wave reaches the ear within 0.1 seconds of the primary sound, then it seems to the person that the sound is prolonged.
When sound reflects off a special wrapped surface called a parabola, the reflection will bounce out in a straight line no matter where it originally hits. Several stages are designed as parabolas so the sound will go directly into the audience, instead of bouncing around on stage. If the parabola is closed off by a new curved surface, it is called an ellipse. Sound will travel from one focus to another focus, no matter where it strikes the wall. A whisper gallery is designed as an ellipse. If your friend stands at one focus and you stand at other focus, his whisper will be heard clearly by you. No one in the rest of the room will hear anything. Having problem with Angular Speed Equation keep reading my upcoming posts, i will try to help you.
Causes of reflection:
Reflection of sound waves on surfaces can direct to one of two phenomenons - an echo or a reverberation. A reverberation often occurs in a small room with width, height, and length dimensions of approximately 17 meters or less. Why the magical 17 meters? Affect of a particular sound wave upon the brain endures for more than a small fraction of a second; the human brains keep a sound in memory for up to 0.1 seconds. If a reflected sound wave reaches the ear within 0.1 seconds of the primary sound, then it seems to the person that the sound is prolonged.
Is this topic Permanent Magnet DC Motors hard for you? Watch out for my coming posts.
How does sound reflected to every point in the room?
Reflection of sound waves on surfaces can direct to one of two phenomenons - an echo or a reverberation. A reverberation often occurs in a small room with width, height, and length dimensions of approximately 17 meters or less. Why the magical 17 meters? Affect of a particular sound wave upon the brain endures for more than a small fraction of a second; the human brains keep a sound in memory for up to 0.1 seconds. If a reflected sound wave reaches the ear within 0.1 seconds of the primary sound, then it seems to the person that the sound is prolonged.