A computational model of T-matrix method to calculate the acoustic scattering from the submerged rigid objects with arbitrary shapes is established.

针对水下任意形状刚硬体，建立了其声散射T矩阵法计算模型。

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Finally, by using ESPRIT harmonic frequencies are extracted from real measured helicopter acoustic signal. All results demonstrate that ESPRIT is superior t…

各种结果均显示谐波恢复的ESPRIT方法在提取谐波频率方面较之其它方法更为优越，用它提取直升机声信号特征是十分有效的。

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Frankly, "Case" sounds on the verge of imploding as it is, with an acoustic-guitar solo that might be called flamenco if it weren't so scattershot and an otherwise-simple quarter-note pulse, which creates the illusion that the song's center is constantly shifting.

NPR: On 'Cigarette Case,' Spoon Is a Band of Few Words

Nora Guthrie says she doesn't think her father's songs should be pigeonholed, and believes that instruments other than acoustic guitars and harmonicas can do them justice.

NPR: A German Twist on Woody Guthrie