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音量表是电台节目监测的专用仪表,它的技术性能与质量好坏,都会直接影响播出质量。目前使用最广的音量表是VU表和PPM表。 VU表的特点 目前直播室使用最广的一种音量表是“音量单位表”,又称VU表(是英文Volume Unit的缩写)。它是采用平均值检波器(二极管桥式整流器)并按简谐信号的有效值确定的,因此是一种准平均值表。
Volume meter radio monitoring program is a special instrument, its technical performance and quality is good or bad, will have a direct impact on the broadcast quality. Currently the most widely used VU meter and PPM meter. The characteristics of the VU table Currently the most widely used live studio is a “volume unit table”, also known as VU table (English Volume Unit acronym). It uses an average detector (diode bridge rectifier) and is based on the effective value of the harmonic signal to determine, so it is a quasi-average table.