## How many sones are in a dB?

One sone is equal to about 1,000 Hz with a sound level about 40 decibels above a normal reference level. In other words, a sound that delivers over four sones is about four times louder than the normal reference level….Defining the Sones Rating.

Sones Decibels
20 71.19

## What does 1.0 sones sound like?

refrigerator
1.0 sone: A 1.0 sone rating is roughly equivalent to the sound of a refrigerator running. 2.0 sones: 2.0 sones is the noise level in a normal office workplace. 3.0 sones: A fan rated at 3.0 sones will be roughly as loud as a face-to-face conversation.

Are 1.5 sones loud?

Fans rated at 1.5 sones are very quiet, and low-capacity fans rated as low as 0.5 to 1 sones are nearly inaudible. Since central ventilating fans run for extended periods of time, they should be no louder than 1.5 sones if they are mounted in the living space.

### How many sones is 40 decibels?

1 sone
Definition and conversions According to Stevens’ definition, a loudness of 1 sone is equivalent to 40 phons (a 1 kHz tone at 40 dB SPL).

### What is a sone in decibels?

One sone is arbitrarily set equal to the loudness of a 1,000-hertz tone at a sound level of 40 decibels above the standard reference level (i.e., the minimum audible threshold). A sound with a loudness of four sones is one that listeners perceive to be four times as loud as the reference sound.

What is a sones sound rating?

A sone is a linear measurement of loudness based on how an average listener senses sound. Instead, sones are measured by speed, or maximum cubic feet per minute. For instance, a bathroom fan with a sone rating of 0.3 is considered to be very quiet.

## How many sones is a refrigerator?

How Loud is a Sone?

# of Sones Equivalent Sound
1 The hum of a quiet refrigerator
2 A quiet office
3 A radio or TV playing a comfortable level
4 Normal conversation

## What are sones for bathroom fans?

Bathroom fan sound levels are measured in sones: 4.0 sones is the sound of standard television operation; 3.0 sones is typical office noise; 1.0 sones is the sound of a refrigerator; and 0.5 sones is the sound of rustling leaves. For quiet bathroom ventilation the fan should be rated at 1.0 sones or less.

What does 1 sones sound like?

One sone is similar to a whisper or the sound of an extremely quiet refrigerator or dishwasher. Eight sones are equivalent to a normal conversation or background noise. The lower the sone value, the quieter the hood.

### What is a quiet sone level?

That said, most consider a sone rating of 1.5-2 to be soft enough to be considered “quiet.” This is still louder than that quiet refrigerator, but it will be very acceptable to most people. 4-16 sones β a passenger car 30 feet away. 16-32 sones β a major road 30 feet away.

### What is dB sone?

To summarize this decibels chart, one sone is 28 dB and eight sones are about 57 dB. This is roughly the appropriate range of sound level for your range hood. One sone is similar to a whisper or the sound of an extremely quiet refrigerator or dishwasher.

How much is a sone?

## How do Sones relate to decibels?

1 sone is 40 decibels (1 kilohertz) A sound is of x sones if the listener describes it as x times louder than 1 sone. The phon is also a unit of subjective sound loudness, but the phon is more closely related to the decibel. A sound of 20 decibels will be about 20 phon depending on how it is perceived.

## How loud is a Sone?

The Home Ventilating Institute (HVI) defines a sones this way: βIn technical terms, a sone is equal in loudness to a pure 1,000 Hertz per second tone at 40 decibels above the listener’s threshold of hearing.

How loud is 4 Sones?

For your question, a 4-sone rating is about four times a loud as a 0.9 (~1) sone rating. Sones are not decibels or volume, but rather how sound is sensed. Sones are a linear measurement, like inches.

### What is sones sound rating?

A sone is a measurement of sound in terms of the comfortable hearing level for the average listener. The lower the sone value, the more comfortable the listening environment will be. For your question, a 4-sone rating is about four times a loud as a 0.9 (~1) sone rating.