0
UL Standard 464 specifies a range of audible alarms for devices, typically requiring that the sound output be at least 85 decibels (dB) at a distance of 10 feet. The standard outlines a frequency range for alarms to be effective, generally between 1,000 Hz to 4,000 Hz, as sounds within this range are more easily perceived by the human ear. Compliance with these specifications ensures that alarms are loud enough to alert individuals in an emergency situation.
What else can I help you with?
What type of scale is the decibel scale?
The decibel scale is a logarithmic scale. Scroll down to related links and look at "Decibel - Wikipedia" and "Sound level meter - Wikipedia".
What is the recommended decibel level for the human ear?
60 i think
What is an acceptable decibel level?
The range is 0dB to 194dBIf you listen to anything over 90dB for a long period of time your hearing will start to go bad.See related link for more information
On the decibel scale an increase of 10 decibels means an intensity increase of?
Psycho acousticians say that 10 dB level difference double the felt loudness. well apex begs to differ!
How much one decibel?
1 decibel of increase of sound level is the smallest increase (or decrease) in level that may be discerned by the average person. It corresponds to an increase in level of about 25%. [The 10th root of 10 is another similar expression.] The decibel was initially used to measure changes in signal level in a line. Named after Alexander Graham Bell. One Bell - 10dB - sounds twice as loud to those same average individuals.
What does a decibel have to do with sound?
A decibel is the unit of measuring the level of sound.
What is the decibel of a car horn?
What is the decibel level of a car horn?
What is the normal decibel of a human voice?
The decibel level for standard human voices is around 60 decibels, which is also the level for singing birds. Hearing loss occurs at around 110 decibels with painful hearing loss occurring at 130 decibels.
What is the average decibel level of the sound in the room?
The average decibel level of the sound in the room is 60 decibels.
What is decibel and how is it used as a measure of the loudness of sound?
A decibel is a unit used to measure the intensity or loudness of sound. It is a logarithmic scale that compares the sound pressure level to a reference level. The higher the decibel level, the louder the sound.
What is the average decibel level of thunder during a thunderstorm?
The average decibel level of thunder during a thunderstorm is around 120 decibels.
What decibel level is considered too loud for dogs?
The decibel level considered too loud for dogs is around 90 decibels.
What is the decibel level at which noise becomes harmful for babies?
The decibel level at which noise becomes harmful for babies is around 70 decibels.
What is the decibel level at which noise becomes harmful to babies?
The decibel level at which noise becomes harmful to babies is around 70 decibels.
What is the average decibel level of sperm whale sounds?
The average decibel level of sperm whale sounds is around 170 decibels.
What is the noise or decibel level of crowing rooster?
A crowing rooster can have a crow that is upwards of a decibel level of 70. This can be comparable to the decimal level of a raised human voice.
Average decibel level of human conversational speech?
Scroll down to related links and look at "Decibel Sound Pressure Level Examples".
