How to Identify Different Versions of White Noise

While many people use the term 'white noise' to encompass a wide range of soothing sounds, there are different versions, including pink and brown noiseWhile many people use the term 'white noise' to encompass a wide range of soothing sounds, there are different versions, including pink and brown noise .hite noise is a popular sound option for improving sleep, focus, relaxation, and concentration. While many people use the term 'white noise' to encompass a wide range of soothing sounds, there are different versions, including pink and brown noise. This article will guide you through the process of identifying these versions so you can determine the best white noise option for your needs.

White noise is often described as a constant, unchanging sound that blends all frequencies equally. However, true white noise follows a specific pattern, where all frequencies have an equal intensity. This can create a hissing or static-like sound that is ideal for blocking out other noises and maintaining concentration.

On the other hand, pink noise differs from white noise in that it has a greater intensity at lower frequencies. This gives it a warmer, deeper sound that many find more relaxing than white noise. Examples of pink noise include rainfall, steady ocean waves, and the hum of a fan.

Lastly, brown noise—also known as red or Brownian noise—also focuses on lower frequencies but in a different way than pink noise. The intensity of brown noise decreases as the frequency increases, which results in a much warmer, deeper sound. Examples of brown noise include slow-moving rivers, thunderstorms, and low-frequency mechanical hums.

To see which version of white noise you have, you can use audio analysis software like Adobe Audition or Audacity. These applications make it possible to analyze the frequencies present in an audio file, displaying the resulting spectrum visually.

To use Adobe Audition:

1. Open the audio file in Adobe Audition.


2. Click on 'Window' in the top menu and select 'Frequency Analysis'.


3. Look at the graph. If the intensity is consistent across all frequencies, it's white noise. If the intensity decreases as frequency increases, it's pink or brown noise, depending on the severity of the drop-off.

Similarly, in Audacity:

1. Open the audio file in Audacity.


2. Click on the 'Analyze' tab and select 'Plot Spectrum'.


3. Examine the graph to identify which version of noise it is based on the descriptions mentioned above.

Now that you know how to see what version of white noise you have, you can choose the right option for your needs. If you're trying to block out noise for better sleep or focus, white noise may be ideal. If you're looking for relaxation or stress relief, pink or brown noise may better suit your needs.