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在电化教学活动中,我们研制成功了声-画同步控制系统,应用于幻灯机.采用普通的单声道录音机(如L-601、LY-321、PL-3等),不加任何改造就可以实现声-画同步控制.同时,对存在功能不佳和换片不准确等问题的自动幻灯机,该系统能使之改善.经加装本控制系统的幻灯机,在半年多的电化教学现场使用中,表明它具有的声-画同步控制、定时自动控制、手动控制和有线遥控等功能,性能稳定,动作准确,抗干扰能力强.这种声-画同步控制方式具有不受解说词长
In the electro-teaching activities, we have successfully developed a sound-painting synchronization control system, used in slide projector.Use ordinary mono recorder (such as L-601, LY-321, PL-3, etc.), without any modification can The realization of the sound - painting synchronous control.At the same time, for the existence of poor performance and inaccurate and other issues for the automatic slide projector, the system can make it improved.After installing this control system of slide projector, more than six months in the field of teaching , It shows that it has sound-painting synchronization control, timing automatic control, manual control and wired remote control and other functions, stable performance, accurate action, anti-interference ability.