How Many Decibels Does A Human Speak Normally?3 min read

Mar 1, 2022 2 min

How Many Decibels Does A Human Speak Normally?3 min read

Reading Time: 2 minutes

Okay, so why is it important to know how many decibels a human actually speaks?For the simple fact that loud sounds can hurt your brain. Whether that be in a car, plane, or while standing in front of a speaker. So when you’re talking to someone and they say “nice” your ears are more likely to hear less than the actual vocalization.

When you say something like “I heard you speaking,” it takes too long for your brain to register what they said.So it’s important to learn how loud people actually speak and how loud they actually are compared to other people. It can help you stop making assumptions about others and make sure you don’t accidentally offend someone, even if their words aren’t meant for you.

Personal Narration

Psychologists have been trying to pin down the maximum volume of sound that humans can produce for years. In fact, early researchers believed that only some people could hear over a certain threshold. But it turns out that there is no upper limit to how loud we can be.

Our hearing loss is too often caused by external factors such as loud noises or our own emotional state (such as depression).In a study conducted by Billions of Words, researchers found that even a small group of people could hear at an average rate of more than 100 decibels.

This means that if you were to stand in front of someone and yell at them, they would be unable to hear you above 70 decibels (the average person’s speech).

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Expected Value

The most common question I’m asked is, “How many decibels does a human speak normally?”You should know that the number of decibels that a person speaks at is directly proportional to the size of their mouth.

A large mouth will create much more sound than a small mouth. The average human mouth is approximately 7 centimeters in circumference.

Therefore, the size of a person’s mouth will determine their estimated speech level.The amount of sound that can be heard depends upon the distance between the ear and the listener. A speaker standing next to a loud crowd can hear sounds up to 3 meters (10 feet) away from them.

If a speaker wants to speak to someone who’s at least 6 meters away from them, they should use an electronic voice synthesizer (E-VOS) or an automatic speech recognition (ASR) system to hear what’s being said. With these two options available, you can choose how loud you wish your voice to be heard by others.


We’ve come to understand that the human voice carries messages in a variety of different ways. The easiest way to describe a speech that is “loud” is with the term “loudness.” A sound with a high intensity and loudness, such as sirens, have a loudness of 100 decibels. A sound with a low intensity and quietness, such as chirping crickets or flower petals, have a quietness of 50 decibels.But it isn’t just about loudness in its own right. To really understand the world of sound, we need to look at the other parts of the spectrum — intonation and emphasis.In general, voice inflection is considered more important than timbre (a person’s vocal range), but it has not been properly studied.

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