ITU-T J.23 SPANISH-1988
7 kHz类型(窄带)声音节目电路的性能特性

PERFORMANCE CHARACTERISTICS OF 7 kHz TYPE (NARROW-BANDWIDTH) SOUND - PROGRAMME CIRCUITS

作废

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标准号

ITU-T J.23 SPANISH-1988

发布

1988年

发布单位

国际电信联盟

 

 

适用范围

The CCITT,considering that it is necessary to set transmission standards for sound-programme circuits; that quality requirements for the hypothetical reference circuit are established for analogue sound programmes; that advantage should be taken of the technical evolution made possible by the introduction of digital techniques, particularly for mixed analogue and digital circuits, recommends that, with due regard to the application constraints, equipment for new circuits shall meet the requirements laid out below.

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