鄙视读作
发表于 2025-3-27 00:19:35
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WAIL
发表于 2025-3-27 01:19:13
Vibrations and Wavesar effects when vibrations or waves are superimposed. It will be shown how wave equations can be derived for strings, bars and air columns and how analytic results can be obtained for some boundary conditions. This chapter will also review techniques for the calculation of resonance frequencies. Fin
tariff
发表于 2025-3-27 05:50:55
Waves in Two and Three Dimensionsmensional space. Again linearity is postulated, which is only justified if amplitudes are sufficiently small. It will be shown how wave equations can be derived for rectangular and circular membranes, plates and disks and how analytic results can be obtained for a three-dimensional case with relativ
interference
发表于 2025-3-27 11:02:05
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占线
发表于 2025-3-27 16:42:35
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HUMP
发表于 2025-3-27 18:11:29
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佛刊
发表于 2025-3-28 01:46:05
Modeling of Wind Instrumentscan be explained in terms of a lumped element feedback loop composed of an exciter, such as a reed-valve or an unstable jet, coupled to an acoustical air column resonator, usually a pipe. In this chapter this simplified model is used to classify wind instruments. Five prototype wind instruments are
少量
发表于 2025-3-28 03:12:15
Properties of the Sound of Flue Organ Pipesttack transient have been surveyed and assigned to properties of the physical systems (air column as acoustic resonator, air jet as hydrodynamic oscillator, and pipe wall as mechanical resonator) involved in the sound generation process. The measurements presented underline the primary role of the a
Hyperalgesia
发表于 2025-3-28 06:15:29
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发表于 2025-3-28 11:50:39
Musical Instruments as Synchronized Systemsing the complex geometry and nonlinear driving mechanisms many of these instruments have we would expect them to have very inharmonic overtone series. So to make musical instruments play notes that we accept as harmonic sounds, synchronization needs to occur to arrive at the perfect harmonic overton