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What is the maximum and minimum intensity of sound that human call can ear?
Wiki User
∙ 13y ago
20dB
Wiki User
∙ 13y ago
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What is the minimum intensity a sound can have?
The minimum of sound intensity can be theoretically as low as zero decibels. But you seem to mean what the human threshold of hearing is. That reference sound intensity is 10^−12 W/m² equal to 0 dB sound intensity level. Our eardrums are moved by the sound pressure. The reference sound pressure at the human threshold of hearing is po = 20 µPa equal to 0 dB sound pressure level (SPL).
Is the velocity of sound at its maximum in a vacuum?
No - it's a minimum. Zero in fact. Sound can not travel in a vacuum.
What is a sound with low volume?
Reference sound intensity Io = 10^−12 W/m² (Threshold of human hearing). Reference sound intensity level LIo = 0 dB-SIL (Threshold of human hearing intensity level). Sound intensity is a sound energy quantity. Our eardrums are moved by sound pressure variations. That is a sound field quantity. Reference sound pressure po = 20 µPa = 2×10^−5 Pa (Threshold of human hearing). Reference sound pressure level Lpo = 0 dB-SPL (Threshold of human sound pressure hearing level).
How is intensity related to loudness?
Assuming we are talking about sound, intensity measures the power in a sound wave. Mathematically, it is the product of the sound pressure and the particle velocity, and is measured in watts per square meter. Loudness usually refers to the (subjective) perception of sound intensity by people. It is related to intensity, but also depends upon frequency. The human ear perceives increases in sound intensity roughly on a logarithmic scale, so for example the sound intensity needs to increase by about a factor of ten to create the perception that the sound is twice as loud. This is the motivation for the decibel system, which measures sound intensity on a logarithmic scale.
Sound intensity decreases when what decreases?
Sound intensity decreases when amplification (volume) decreases.
What is the minimum intensity a sound can have?
The minimum of sound intensity can be theoretically as low as zero decibels. But you seem to mean what the human threshold of hearing is. That reference sound intensity is 10^−12 W/m² equal to 0 dB sound intensity level. Our eardrums are moved by the sound pressure. The reference sound pressure at the human threshold of hearing is po = 20 µPa equal to 0 dB sound pressure level (SPL).
How the term intensity decibel and amplitude are related?
They are all measueres of sound waves. Amplitude is the term for the maximum difference in pressures between the peaks and troughs of a sound wave. Intensity is a measure of the energy content of a wave, and is proportional to amplitude squared. The decibel is an anthropic (based on human senses) measure of sound intensity, proportional to the logarithm of intensity.
What is the maximum sound level is safe for human ear in DB?
What is the maximum sound level is safe for human ear
What gives a sound wave its pitch and intensity?
A sound wave's pitch is determined by its frequency; that is its cycles per unit of time. The sound wave's intensity or volume is determined by its amplitude; the maximum crest of a sound wave.
What is sound intensity measured in?
Reference sound intensity Io = 10^−12 W/m² (Threshold of human hearing). Reference sound intensity level LIo = 0 dB-SIL (Threshold of human hearing intensity level). The sound intensity I is measured in watts per meter squared. The sound intensity LI level is measured in decibels (dB).
The human perception of sound intensity is called?
That is called acoustic
What is the human perception of intensity?
Our ear drums with the ear/brain system are moved only by sound pressure motions. The sound pressure is the effect, but the sound power (sound intensity) of the source is the cause.
Is the velocity of sound at its maximum in a vacuum?
No - it's a minimum. Zero in fact. Sound can not travel in a vacuum.
What unit sounds are intensity measured in?
Reference sound intensity Io = 10^−12 W/m² (Threshold of human hearing). Reference sound intensity level LIo = 0 dB-SIL (Threshold of human hearing intensity level). Sound intensity is measured in watts per meter squared (W/m²) Sound intensity level is measured in decibels (dB). Sound intensity is a sound energy quantity. Our eardrums are moved by sound pressure variations. That is a sound field quantity. Reference sound pressure po = 20 µPa = 2×10^−5 Pa (Threshold of human hearing). Reference sound pressure level Lpo = 0 dB-SPL (Threshold of human hearing sound pressure level). Sound pressure is measured in pascals (Pa) or in newtons per meter squared (N/m²). Sound pressure level is measured in decibels (dB). Sound pressure is a sound field quantity.
What is a sound with low volume?
Reference sound intensity Io = 10^−12 W/m² (Threshold of human hearing). Reference sound intensity level LIo = 0 dB-SIL (Threshold of human hearing intensity level). Sound intensity is a sound energy quantity. Our eardrums are moved by sound pressure variations. That is a sound field quantity. Reference sound pressure po = 20 µPa = 2×10^−5 Pa (Threshold of human hearing). Reference sound pressure level Lpo = 0 dB-SPL (Threshold of human sound pressure hearing level).
Human perception of sound intensity?
Sound intensity or acoustic intensity (I) is defined as the sound power Pac per unit area A. The usual context is the noise measurement of sound intensity in the air at a listener's location as a sound energy quantity. Our eardrums and microphone diaphragms are moved by sound pressure deviations (p), which is a sound field quantity. So we measure the sound with a SPL meter (Sound Pressure Level).
Is intensity a property of sound?
Sound intensity is a property of sound.
