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一、时间轴变换的原理磁带录音机录制某一信息所需的时间,与重放此内容所需的时间应是相同的。但是,如果能在较短的时间内听完磁带上记录的内容,那么,效率将会提高。据说,从人的会话能力来看,其听速要比讲速快2—3倍。因此,如能进行高速放音,那么,1小时的会议内容,只要半小时就能听完,或者能用高速来检索录制的教材等信息内容。总之,高速放音的用途是极为广泛的。使用比录制时快的速度进行高速放音时,放音时间虽与放音速度成反比而缩短,但频率与放音速度成正比而增加。这时立即能听出放音的音程变化。若放音速度快1.5倍时,仍能
First, the principle of time-axis transformation Tape recorder recording a certain information the time required to replay this content should be the same time. However, if you can record the contents of the tape within a short period of time, the efficiency will increase. It is said that speaking from the person’s ability to talk, listening speed faster than speaking about 2-3 times faster. Therefore, if high-speed playback is possible, one hour of conference content can be heard in only half an hour or high-speed retrieval of recorded information can be performed. In short, the use of high-speed playback is extremely broad. When playing at high speed faster than when recording, the playback time is shortened inversely to the playback speed, but the frequency increases in proportion to the playback speed. At this moment, you can hear the change of the interval of playback. If the playback speed of 1.5 times faster, still