首页>
外国专利>
Recording process permitting the simultaneous spraying of a photographic camera with a commentary recorded and installation for implementing it.
Recording process permitting the simultaneous spraying of a photographic camera with a commentary recorded and installation for implementing it.
展开▼
机译:记录过程允许同时向摄影机喷洒带有记录的解说词并进行安装。
展开▼
页面导航
摘要
著录项
相似文献
摘要
Method and system for a simultaneous projection of photographic images associated with a recorded commentary. Electrical signals coming from the audio spectrum representing the commentary are recorded and a series of control pulses having a given carrier frequency and occuring at predetermined intervals are superimposed on the signals. The pulses are modulated with a signal having a frequency different from the carrier frequency. A switching means is actuated by detected and amplified modulating signals for actuating a photographic image changing device and short-circuiting a filter connecting a reading device to a loudspeaker.
展开▼