It has been well documented that a song's volume, or loudness, over time—what's known as "amplitude modulation"—is relatively steady at 1–2 Hz. By contrast, the amplitude modulation of ...

The loudness levels should sound the same. The first set is at half maximum output (amplitude), the second set is at maximum output. But the total energy in both sets is the same. The difference ...

A loud sound has a large amplitude, a high pitched sound has a high frequency. Musicians and scientists record and analyse sounds using wave traces. Sometimes you can see the source of the sound ...

In particular the high frequency limit reduces with age. The loudness of a sound is a measure of the amplitude of the wave. The greater the amplitude, the louder the sound. The pitch of a sound is ...

Which noise color is best depends on its intended use. “Noise colors” are differentiated by the amplitude (loudness) of the frequencies audible to the human ear. The most well-known “hue ...

The curves are plotted for each 10 dB rise in level with the reference tone being at 1 kHz. Also called loudness level contours and the Fletcher-Munson curves. The curves are lowest in the range from ...

Student 1 is an unintelligible female speaker with a very limited phonetic repertoire, severe pitch and loudness problems and little residual hearing. During 12+ years of speech therapy prior to entry ...

There are a number of ways to measure the magnitude of an earthquake. Most scales are based on the amplitude of seismic waves recorded on seismometers. These scales account for the distance between ...