A sound level of 42 dB is considered to be relatively quiet, similar to a quiet library or a soft conversation. It is a low level of noise that is not very loud.
The sound level of the noise measured at 42 dB is considered moderate and is similar to the noise level of a quiet library.
60 dB sound pressure level is about conversational speech listened in 1 meter distance.
A sound level of 86 dB is considered quite loud and can be compared to heavy traffic noise or a blender. Prolonged exposure to sounds at this level can lead to hearing damage.
1100 dB is an extremely loud sound level that is far beyond the threshold of human hearing and can cause immediate and severe damage to the ears.
No, 10 dB is perceived to be twice as loud, and requires 10 times the power.Doubling of the volume (loudness) should be perceived by a level difference of 10 dB − psychoacousticians say.Doubling the sound pressure (voltage) level corresponds to a measured level change of 6 dB.Doubling of acoustic power (sound intensity) level corresponds to a calculated level change of 3 dB.Scroll down to related links and look at "How many decibels (dB) is twice (double, half) or three times as loud?"
Half as loud in decibels is about a 10 dB decrease. For example, if a sound is initially at 70 dB, half as loud would be around 60 dB.
A 64 dB sound is typically equivalent to the noise level of a normal conversation or background music. It is considered to be at a moderate level and is not loud enough to cause hearing damage under normal exposure.
47 dB is considered to be a moderate noise level, similar to the sound of a quiet conversation or background noise in a library. It is generally not loud enough to cause discomfort or disturbance.
A sound that measures 55 dB is considered moderately loud, similar to a normal conversation or background music.
35 dB is considered a quiet sound, almost like a whisper or the sound of a library. It is typically the noise level of a quiet room, light rain, or rustling leaves.
The degree of loudness or softness of sound is measured in decibels (dB). A higher decibel level indicates a louder sound, and a lower decibel level indicates a softer sound. The range of comfortable hearing for most people is between 0 dB (very soft) and 85 dB (loud but not harmful).
45 dB is considered a quiet level of noise, similar to a soft conversation or the sound of a library. It would not typically be disruptive to daily activities.