What is the relation between loudness and frequency of sound?
From what I know from highschool/early university simple harmonic motions, I believe that there is no necessary link between loudness and frequency. Frequency (the number of times a wave completes an oscillation or cycle in one second) decides the pitch of the sound, while amplitude (the difference in height between the highest point in the sound wave and the lowest point) decides the loudness of the sound.
Amplitude versus frequency Loudness is a function of the sound wave's amplitude of the sound pressure. Aour ear drums are moved by the sound pressure.The greater the amplitude, the greater the volume. Pitch is related to its frequency. The higher the frequency, the higher the pitch. Loudness = amplitude of the sound pressure Softest sound Loudest sound Pitch = frequency Lowest pitch Highest pitch
The pitch or note of a sound that we experience is determined by its wavelength or its frequency. The shorter the wavelength, the higher the frequency becomes, and the higher the pitch that we hear. The amplitude of a sound wave is the same thing as loudness. The loudness or amplitude corresponds to how much the wave is compressed. The wavelength of a wave is independent of its amplitude [loudness] and inversely proportional to its…
sound has properties of loudness and pitch. The loudness of a sound depends on the amplitude of vibration. A speaker making a loud sound moves back and forth more than a speaker making a soft sound. The pitch of a sound depends on the frequency of vibration. A speaker making a high pitched sound like a siren vibrates with a higher frequency than the same speaker making a low pitched sound like thunder
No. The amplitude of a sound is not related to its frequency (wavelength). There might appear to be a connection if the listener's hearing is more or less sensitive to certain frequencies. For example, as a sound with constant amplitude rises in frequency toward the upper limit of the listener's hearing range, it will be perceived as if its amplitude (loudness) is dropping, although that sensation is in the ear of the beholder and not…
The definition of sound is : "Vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear." Sound can be measured by amplitude (loudness) and pitch (The frequency of the vibrations). Therefore sound does not affect frequency but frequency affects the pitch of the sound.
Loudness is affected by sound pressure, frequency and its bandwidth, and duration (time). Loudness is a subjective measure, which is often confused with objective measurements of sound pressure in decibels with a sound level meter. A-weighting filters attempt to adjust sound measurements to correspond to loudness as perceived by an average human; however, loudness varies from person to person and cannot be really measured.
The sound pressure amplitude tells about how loud the tone will be and the frequency (cycles per second) of the oscillation tells how high the sound of the tone will be. The amplitude gives the loudness of the tone: http://en.wikipedia.org/wiki/Loudness The frequency gives the pitch of the tone: http://en.wikipedia.org/wiki/Pitch_%28music%29
Sound intensity is objective, because it's just a measure of the sound power per unit area. Loudness is subjective, because it has to take into account the sensitivity of the ear and its different responses to different frequencies in the sound. A sound with a frequency of 45 kHz would have no "loudness", since our ears don't respond to that frequency at all. But it would still have intensity, because the sound is still carrying…