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一、引言录音磁层记录的剩磁信息一磁迹决定着放音输出强弱。类似于电平,可用磁平表示磁迹强弱。在广播、录音领域,磁平计量直接关系到节目质量。磁平过强增大节目失真,过弱又降低信噪比。节目交换更要求磁平计量标准统一,以保证节目质量又不调整录放系统。
I. INTRODUCTION The remanence information recorded by the magnetic recording layer determines the output strength of the audio output. Similar to the level, magnetic flatness can be used to indicate the track strength. In the field of broadcasting and recording, magnetic flatness measurement is directly related to program quality. Magnetocene increase program distortion, too weak and reduce the signal to noise ratio. Program exchange also calls for uniform magnetic flat standard, in order to ensure the quality of the program without adjusting the recording and reproducing system.