actual sound meaning in English

同期声
真实声音

It ' s the rhythm and the cadence and the intonation rather than the actual sound that is always tripping me up
让我感到棘手的更多的是节奏、韵律和声调这些，而具体的发音还算好一点。
In this paper , taking the measured error sound velocity profile as the initial guess value , the sound beam travel times and beam angle recorded by the multi - beam system and the generalized linear inversion method are used to get a sound velocity profile close to the actual sound velocity profile , and the inversed sound velocity profiles have contributed to the reduction of sound velocity profile error
摘要以测得的误差声速剖面作为初始猜测值，利用多波束记录到的波束传播时间和波束角等信息，通过广义线性反演得到一个与实际声速剖面比较接近的声速剖面，这有助于减少声速剖面的误差。
( 4 ) establish the grey model on the basis of the actual sound pressure level of 27000dwt bulk carrier superstructure cabin as a sample and extend the grey model through comparing the prediction values with the actual values , aiming to predict the noise level of superstructure cabin of 74500dwt bulk carrier and 5618teu container ship
( 4 )以27000吨散装货船上层建筑舱室噪声的实际测量值为样本，建立灰色预测模型，通过预测值和实测值的对比分析对模型进行推广，并分别对74500吨散装货船和5618箱集装箱船的上层建筑舱室噪声进行预测。