The intensity of a sound is determined by the rate and density of energy transfer. The larger the amplitude, the greater the intensity, and the louder the sound.
Examples: frequency, intensity, wavelength.
No, two sound waves that seem equally loud may not have the same amplitude. Loudness is a perceptual quality of sound, which can be influenced by factors such as frequency, duration, and intensity of the sound wave, in addition to amplitude.
Two factors that affect sound quality are the source of the sound (microphone, instrument, etc.) and the acoustics of the environment where the sound is being produced or recorded. The quality of the recording or playback equipment also plays a significant role in determining sound quality.
The loudness of a sound depends on the amount of energy it takes to make the sound and the distance from the source of the sound
Sound is measured in decibels, dB. Ten decibels (one Bel) sounds twice as loud as another sound. One decibel is the amount of sound just distinguishably louder than another sound. Named after A G Bell of telephone fame.
The intensity of a sound is determined by the rate and density of energy transfer. The larger the amplitude, the greater the intensity, and the louder the sound.
Reverberation time, loudness, Focusing, interference, echo, echelon effect, resonance, noise
Examples: frequency, intensity, wavelength.
Intensity and duration
Temperature and pressure are two factors.
distance and time, determines speed.
Sound intensity or acoustic intensity can be calculated from the objective measurement of the sound pressure. The loudness is a psycho-acoustic subjective feeling, which is difficult to measure.
The density is the mass divided by the volume.
Dominant and recessive
Two factors that affect sound quality are the source of the sound (microphone, instrument, etc.) and the acoustics of the environment where the sound is being produced or recorded. The quality of the recording or playback equipment also plays a significant role in determining sound quality.
Arrival time and intensity difference. Due to the different spacial positioning and orientation of the ears, a sound wave will arrive at each ear at slightly different times and with slightly different intensity. For example, if a sound originates to the right of a person, the sound will reach the right ear first and the right ear will experience a greater intensity. These very small differences are integrated in the nervous system and are manifested as the ability to localize sound.
The intensity of sound is measured in a unit called the decibel (dB), which describes the relative intensity of a sound based on an algorithmic decibel scale containing values ranging from 0 to 194. A zero value on the decibel scale represents the weakest sound audible to humans and sound intensity increases in correspondence with numeric values, the relationship among the values on the decibel scale is not linear but algorithmic. Here is an example of the decibel scale http://www.explainthatstuff.com/soundlevelmeters.html