The Effects of Head Movement and Pinnae Distortion on Sound Localisation Abstract: Human’s ability to locate sounds on their midline can be effected by the distortion of the pinnae‚ as well as the restriction of head movement. The study investigated the effects of head moment and pinnae distortion on sound localisation through the presentation of a sound stimulus along three points of the participants midline‚ in front‚ above or behind the participants head. The study was carried out under four
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piece to the excerpt above. What questions did I have prior to developing the piece? I was curious about the sounds that could be created if I were to amplify the situation of shaving my facial hair. How did these questions change over the course of developing my piece? I realized I could use different types of razors- both standard and electric- and was curious about the variation in the sounds from the different razors. And how did these questions evolve through the course of the actual Musicircus
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hear the sound waves between 20 Hz to 20 kHz. This frequency range is known as “Audio Frequency Range”. The sound waves having frequencies above this audible range is known as “Ultrasonic Waves” or “Supersonic Waves”. Supersonic waves have the velocities higher than the velocity of sound i.e. more than 1200 km / hour. Ultrasonic waves can not be heard by a human being but a cat or dog may hear them. The wavelengths of ultrasonic waves are very small as compared to audible sound. The sound waves which
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and placement. Part 2: Non-Speech Sounds. Non-speech sounds are a part of our life that we have been exposed to from our youngest days until the present. Over time we learned to understand what they represented and understand more as we were exposed to them. Many key us to an action or event that occurred or is occurring around us even if we can’t or don’t see what sound is in response to. Our ability to interpret non-speech sounds and its connection to vision is a trait that
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consequences to sound perception if the tympanic membrane increased twofold in surface area. What would happen if the oval window had increased surface area? Would sounds be perceived if the round window became rigid? The tympanic membrane is also known as the eardrum. If the tympanic membrane increased twofold‚ then it would be able to receive more vibrations thus increasing the sound pressure. This sends stronger vibrations all throughout the middle ear and then the inner ear. Therefore sound perception
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DATA__________________________________________________________________________________________ Room Temperature: 21°C Theoretical speed of sound: 343 m/s Experimental speed of sound (average): 348 m/s Percent Difference: + 1.46% Frequency of Tuning Fork (Hz) | First Position of Resonance | Second Position of Resonance | Wavelength (m) | Velocity of Sound (m/s) | | 1 | 2 | 3 | Average (cm) | 1 | 2 | 3 | Average (cm) | | | 512 | 15.8 | 15.3 | 15.5 | 15.5 | 49.2 | 49.4 | 49.1 | 49
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LIMITATION OF SIGHT AND HEARING INTRODUCTION Humans have sight and hearing limitation. Without any devices‚ our sight and hearing was limited. Most of the limitation of sight can be overcome with the help of certain optical instruments such as magnifying glass‚ microscope‚ binoculars and others. The range of frequency of hearing in human 20 Hz to 20 000 Hz. It was different according to the age of a person. Hearing limitations can be overcome by using devices such as microphone‚ stethoscope‚ earphone
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see serves an important signaling function for both animals and humans. For an animal living in the forest‚ the rustle of leaves or the snap of a twig may signal the approach of a predator. For humans‚ hearing provides signals such as the warning sound of a smoke alarm or an ambulance siren‚ the distinctive high indicate problems in a car engine. Hearing not only informs us about things that are happening that we can’t see‚ but perhaps most important of all‚ it adds richness to our lives through
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All sound waves which are travelling through the air are in fact longitudinal waves (running lengthwise rather than across)‚ within these sound waves there is compressions and rarefactions. Sound waves travel through air at a high speed but in fact travel even faster from a dense material‚ these lines tells us that; Sound will propagate at a certain speed that depends on the medium‚ and other factors. The denser the molecular structure‚ the easier it is for the molecules to transfer sound energy;
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attracting sexual partners and ads. In this assignment‚ I will compare and contrast the mating signals of minors and pedestrians based on three factors: production mechanism‚ factors influencing variation and sound structure in the signal and
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