Measuring the intensity of a sound wave without any equipment can be challenging, as it typically requires specialized instruments designed for that purpose. However, you can make a rough estimation of sound intensity using your own senses and some basic knowledge.
Distance: As a general rule, sound intensity decreases as you move farther away from the source. If you know the distance between yourself and the sound source, you can assume that the sound will be less intense the further you are from it.
Subjective perception: Your subjective perception of sound intensity can give you a relative idea of its strength. If a sound seems louder or more intense to you compared to other sounds, it likely has a higher intensity. However, this method is subjective and not suitable for precise measurements.
Comparisons: If you have encountered similar sounds before and can remember their intensities, you can compare the current sound to those past experiences. This method can provide a rough estimate of the relative intensity.
It's important to note that these methods are not accurate or precise measurements. To obtain more precise measurements, specialized equipment such as sound level meters or decibel meters are typically used. These instruments are specifically designed to measure sound intensity objectively and provide accurate results.