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Sound Frequencies and Music Quality. A sound wave in the air can be visualized as a pressure wave consisting of densely packed and sparse regions. Lower sounds are modulated with finer lines that carry higher frequencies. The precise shape of these lines carries information about the frequency and amplitude of the sound.
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Sound Wave Length and Propagation. The length of a sound wave is determined by its frequency and the speed of sound propagation. While the speed of sound propagation varies with different air temperatures, for calculations, room temperature and a sound speed of 343 m/s can be used.
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Sound Pressure and System Power. Sound loudness, specifically sound pressure, is measured in decibels (dB). The decibel scale is relative and always referenced to a certain value (human hearing threshold, device maximum capability, etc.). The decibel scale can have both positive and negative values.
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Sound Quality in Audio Reproduction. There are numerous stages involved in audio reproduction, and achieving good end results requires quality at every stage. As listeners, we cannot influence the work done in studios and during recording. However, even here there are significant differences, and in real life, a common normal distribution applies – a lot of mediocrity and a touch of quality, along with some junk. Fortunately, we have the choice o
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Nilson
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Blog posts here have mentioned that some speaker problems can be solved with an equalizer. Let’s take a closer look at what kind of equalizer is needed and how to use it. Firstly, a "parametric equalizer" is needed. This means a simple thing: for each adjustment, you can choose the frequency, the amount of change, and the width of the frequency band to be adjusted.