Pitch and amplitude of sound wave Vs its volume

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SUMMARY

The discussion centers on the relationship between pitch, amplitude, and volume of sound waves. It establishes that while amplitude is a measure of the change in a sound wave, it alone does not determine perceived loudness, which is influenced by various physical, physiological, and psychological factors. The conversation highlights the importance of understanding psychoacoustics in evaluating loudness, particularly in sound systems where subjective perception plays a critical role. The conclusion is that amplitude must be considered alongside other variables to accurately assess loudness.

PREREQUISITES
  • Understanding of sound wave properties, including pitch and amplitude
  • Familiarity with the concept of loudness in acoustics
  • Knowledge of psychoacoustics and its relevance to sound perception
  • Basic principles of sound systems and their operation
NEXT STEPS
  • Research the principles of psychoacoustics and how they affect sound perception
  • Explore the relationship between amplitude and perceived loudness in various environments
  • Study sound pressure levels and their measurement in decibels (dB)
  • Investigate the impact of ambient noise and environmental factors on sound perception
USEFUL FOR

Acoustics engineers, sound designers, audio technicians, and anyone interested in the science of sound perception and loudness in various environments.

k.udhay
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Hi. If I know the pitch and amplitude of a sound wave, will I be able to calculate its volume.

I can understand volume of devices vary betwerb brands and other categories. For the sake of discussion, let's assume volume to be a consistent unit or if db is the right unit, let's take that.
 
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I find two definitions for sound volume.

https://en.wikipedia.org/wiki/Amplitude said:
The amplitude of a periodic variable is a measure of its change over a single period (such as time or spatial period). There are various definitions of amplitude (see below), which are all functions of the magnitude of the difference between the variable's extreme values. In older texts the phase is sometimes called the amplitude.

https://en.wikipedia.org/wiki/Loudness said:
In acoustics, loudness is the subjective perception of sound pressure. More formally, it is defined as, "That attribute of auditory sensation in terms of which sounds can be ordered on a scale extending from quiet to loud."

The relation of physical attributes of sound to perceived loudness consists of physical, physiological and psychological components. The study of apparent loudness is included in the topic of psychoacoustics and employs methods of psychophysics.

In sound systems it sounds like the subjective definition applies. If so, then amplitude is not enough.
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If I keep everything else constant - Ambient noise value, temperature or anything else that could change behavior of sound - But the amplitude of wave, will it change the loudness of what I was hearing so far?
 

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