有些时候,我们常常希望把声音收录保存下来,需要再听的时候再使保存下来的声音重发。这种把声音收录保存下来的工作就叫做录声。近几十年来,科学家们不断的创造发明,研究并改进了多种录声方法。在目前,录声方法可分为三类:机械录声,磁性录声,光学录声。下面我们将分别加以叙述。一、机械录声机械录声,是把声音的变化变为机械振动,借助刻纹器把声音录在声盘上的一种方法。我们常见的唱片,就是这种录声。早期的机械录声,是用大喇叭筒来收声的,在喇叭筒的一端装有膜片和刻纹针,声音直接振动膜片,使刻纹针随着振动,把声音录在声盘上,刻纹针的振动方 Sometimes, we often want to save the sound included, and then need to re-listen again to save the sound again. This kind of work that saves the sound collection is called recording sound. In recent decades, scientists have been constantly inventing, researching and improving a variety of audio recording methods. At present, recording methods can be divided into three categories: mechanical recording, magnetic recording, optical recording. Below we will be described separately. First, mechanical recording sound recording machine, is the change of sound into mechanical vibration, with the help of the sculptor to record the sound on the sound disc on a method. Our common record is this recording. Early mechanical recording, is to use a large megaphone to close the sound, at the end of the megaphone with a diaphragm and the needle, the sound vibrates the diaphragm, so that the needle with vibration, the sound recorded in the sound disc On the vibration side of the needle