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No, two separate 50 dB sounds do not add up to 100 dB. The decibel scale is logarithmic, not linear, so if two sound sources with the same intensity are combined, the resulting sound level will be 3 dB higher than the original level (for identical sound sources).
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Will two separate 50dB sounds together constitute a 100dB sound?
No, adding two 50dB sounds together will result in a 53dB sound, not 100dB. The decibel scale is logarithmic, so it does not directly add up in a simple arithmetic manner.
Will two separate 50db sounds togather constitute 100 db sound?
No, when two sounds of the same level (in this case 50 dB) are played together, the resulting sound level will be 53 dB, not 100 dB. The decibel scale is logarithmic, so sound levels do not add up directly.
How much louder is 50db then 30db?
The sound of 50 decibles will have 105 and 30 db will have only 103 w/m2 sec.It is clear that first one has greater intensity The sound of 50 decibles will have 105 and 30 db will have only 103 w/m2 sec.It is clear that first one has greater intensity The sound of 50 decibles will have 105 and 30 db will have only 103 w/m2 sec.It is clear that first one has greater intensity
How many times louder is a sound wave with an intensity of 50dB than a sound wave with an intensity of 20dB?
The difference in intensity between the two sound waves is 30dB (50dB - 20dB). Using the formula for sound intensity level (in dB) which is based on a logarithmic scale, a sound wave that is 30dB more intense than another sound wave is 1,000 times louder.
A sound of 20 dB intensity is twice as loud as one of 10dB?
This statement is not accurate. The decibel (dB) scale is logarithmic, not linear. An increase of 10 dB represents a tenfold increase in sound intensity. So, a sound of 20 dB intensity is actually 10 times louder than one of 10 dB, not twice as loud.
Will two separate 50dB sounds together constitute a 100dB sound?
No, adding two 50dB sounds together will result in a 53dB sound, not 100dB. The decibel scale is logarithmic, so it does not directly add up in a simple arithmetic manner.
Will two separate 50db sounds togather constitute 100 db sound?
No, when two sounds of the same level (in this case 50 dB) are played together, the resulting sound level will be 53 dB, not 100 dB. The decibel scale is logarithmic, so sound levels do not add up directly.
Louder at 800 Hz 50dB or 600 Hz 30dB?
Sound Pressure Level(dB SPL) response , based on Equal- Loudness contours( ISO 226:2003 rev) and the Original ISO Std( set for 40 phons), applied in correlation to Fletcher Edmund - for Psychoacoustics, show that 30 dB @ 600Hz in quieter than 50dB @ 800Hz. ( 3rd Octave diagram range 10Hz to 20 KHz.) . FFT /sound density and 3rd Octave are in line for this particular case.
How much louder is 50db then 30db?
The sound of 50 decibles will have 105 and 30 db will have only 103 w/m2 sec.It is clear that first one has greater intensity The sound of 50 decibles will have 105 and 30 db will have only 103 w/m2 sec.It is clear that first one has greater intensity The sound of 50 decibles will have 105 and 30 db will have only 103 w/m2 sec.It is clear that first one has greater intensity
Do you have to have 100 percent hearing to be a pilot?
You don't need 100% hearing. You must be able to clearly hear with both ears and your back turned towards the source, a regular conversational voice in a quiet room from a distance of 6ft.If your medical examiner decides to perform an audiometric speech discrimination test you must pass with scores better than:Your better ear at sound levels 500Hz, 1000Hz, 2000Hz, 3000Hz with 35dB, 30dB, 30dB, 40dB respectively.Your worst ear at sounds levels 500Hz, 1000Hz, 2000Hz, 3000Hz with 35dB, 50dB, 50dB, 60dB respectively.
What does 50db sound like?
Quiet street Normal conversation refrigerator 50 - 60 electric toothbrush 50 - 75 washing machine 50 - 75 air conditioner 50 - 80 electric shaver 40-45-hotel, theater between performances 50-65-loud conversation 40 quiet office, library 50 large office
How many times louder is a sound wave with an intensity of 50dB than a sound wave with an intensity of 20dB?
The difference in intensity between the two sound waves is 30dB (50dB - 20dB). Using the formula for sound intensity level (in dB) which is based on a logarithmic scale, a sound wave that is 30dB more intense than another sound wave is 1,000 times louder.
What is the noise ordinance for the city of Rancho Palos Verdes CA?
Per the City of Torrance website and commission meetings notes, it's 10:00PM to 7:00AM at a decibel level of 50db or above. Added - It depends on where you live int he city of Torrance. Section 3 and Section 4 are the primary residential zones. Section 3 (down by South Torrance High) during daytime 7am - 10am is 50 dba and at night is 45dba 10pm - 7am. Section 4 (the majority of Torrance residential zones) is 55dba during the day and 50 db at night. If you are in fear of legal trouble or issues it is a wise idea to take sound measurements with a sound meter that measures dba. dbc dbd and dbz are useless in property disputes. It is recommended to check out how loud you are and document yourself or even better, pay a sound engineer to do it for you so you have 3rd party documentation. b^^
What Does SPL stand for and how is it measured?
SPL stands for Sound Pressure Level. It basically relates to how much acoustic energy is in sound that you hear. SPL is measured in decibels, or dB. The base reference for SPL is 0dB_SPL, which corresponds to a pressure of 0.0002 dynes per square centimeter, or about the quietest sound a young, undamaged ear can hear, between 1khz and 4khz. SPL of typical situations are: * quiet home at night = 50dB * average conversation = 65dB * heavy street traffic 5 feet away = 90dB * loud rock music at concert = 112dB (or more) * threshold of pain = 130dB * rifle fired 3 feet away = 140dB Some SPL trivia: * An increase of 3db in loudness is just barely perceived as a change, 10dB seems about twice a loud as before to human ears. * If you are playing sound (music, etc.) through an amplifier, and you double the output power by turning up the volume (say, from 20 watts to 40 delivered to the speaker), the SPL will go up about 6dB. * There are several different weighting schemes, the two most popular being A and C weighting, that (supposedly) modify the SPL curve to more closely fit the way our ears hear. "A" weighting is commonly used to measure noise, and test for sound that may damage ears. "C" weighting is commonly used to measure sound levels such as audio sound system output, listening rooms, concerts, and the like. * Pure SPL by itself does not really tell us how loud we will perceive a sound, since the human ear reacts differently to different frequencies, thus the reason for weighting curves. SPL is measured with, yup, an SPL meter. SPL, or 'Sound Level' meters, use a calibrated microphone and amplification to measure and display SPL on an analog meter or digital display.
A sound of 20 dB intensity is twice as loud as one of 10dB?
This statement is not accurate. The decibel (dB) scale is logarithmic, not linear. An increase of 10 dB represents a tenfold increase in sound intensity. So, a sound of 20 dB intensity is actually 10 times louder than one of 10 dB, not twice as loud.
A receiver requires 10nW as input power if all the system losses add up to 50dB then how much power is required from the source?
here, the power required by the receiver is the output power and that required from the source is input power. Gain in dB=10 log(output power/input power) we have, loss in dB = -gain in dB = 10 log(input power/output power) or, 50 = 10 log(input power/10nW) or, anti-log(5) = input power/10 nW so the power required from the source is antilog(5)*10nW = 1 mW
A ground station parabolic antenna has an efficiency of 0.6 and a gain of 50dB at a frequency of 6 GHz Calculate the diameter of the antenna?
For 'f' in GHz and 'D' in feet, I always use Gant, dB = 20 log( f x D ) + 7.5But I think that's for 55% efficiency. If the eff is 60%, that's 20log(60/55) better = another 0.75 dB. So let's make itGant, dB = 20 log( f x D ) + 8.2520 log( 6 D ) + 8.25 = 5020 log( 6 D ) = 41.75log ( 6 D ) = 2.08756 D = 102.0875D = 102.0875 / 6 = 20.39 ft = 6.21 meters (rounded, but it looks reasonable; hope it's close)
