JPH0423392U

JPH0423392U -

Info

Publication number: JPH0423392U
Application number: JP6477290U
Authority: JP
Priority date: 1990-06-19
Filing date: 1990-06-19
Publication date: 1992-02-26

Description

[Brief explanation of the drawing]

第１図は本考案による周波数帯域分割スピーカ
システムの第１の実施例のブロツク図、第２図は
同第１の実施例の各部の位相特性図、第３図は同
第１の実施例のフエイズイコライザ１６の位相特
性図、第４図は同第１の実施例の遅延回路１８の
位相特性図、第５図は同第１の実施例の総合位相
特性図、第６図は同第２の実施例のブロツク図、
第７図は同第３の実施例のブロツク図、第８図は
従来の周波数帯域分割スピーカシステムのブロツ
ク図、第９図は従来の周波数帯域分割スピーカシ
ステムの位相特性図、第１０図は従来の周波数帯
域分割スピーカシステムの遅延回路１８の位相特
性図、第１１図は従来の周波数帯域分割スピーカ
システムの総合位相特性図である。２，４，２４……スピーカ、６，６ａ……クロ
スオーバネツトワーク、１６，２０，２８，３０
，３２……フエイズイコライザ、１８，２２，３
４……時間調整回路、１２，１４，３６……増幅
器。 Fig. 1 is a block diagram of the first embodiment of the frequency band division speaker system according to the present invention, Fig. 2 is a phase characteristic diagram of each part of the first embodiment, and Fig. 3 is a diagram of the phase characteristics of each part of the first embodiment. FIG. 4 is a phase characteristic diagram of the phase equalizer 16, FIG. 4 is a phase characteristic diagram of the delay circuit 18 of the first embodiment, FIG. 5 is a comprehensive phase characteristic diagram of the first embodiment, and FIG. A block diagram of the second embodiment,
Fig. 7 is a block diagram of the third embodiment, Fig. 8 is a block diagram of a conventional frequency band division speaker system, Fig. 9 is a phase characteristic diagram of a conventional frequency band division speaker system, and Fig. 10 is a conventional frequency band division speaker system. FIG. 11 is a phase characteristic diagram of the delay circuit 18 of the frequency band-divided speaker system. FIG. 11 is a comprehensive phase characteristic diagram of the conventional frequency band-divided speaker system. 2, 4, 24... Speaker, 6, 6a... Crossover network, 16, 20, 28, 30
, 32... phase equalizer, 18, 22, 3
4...Time adjustment circuit, 12, 14, 36...Amplifier.

Claims

[Scope of utility model registration request]

A crossover device consisting of a plurality of speakers each sharing a different frequency band, and a plurality of filters that divide the input audio signal into the frequency bands each of the above speakers share at a crossover frequency and supplying the divided signals to the corresponding respective speakers. An overnetwork, a phase equalizer that linearizes the overall phase characteristics of the filter on the high frequency sharing side and the speaker on the high frequency sharing side in the reproduction band of the speaker on the high frequency sharing side, and A frequency band divided speaker system comprising a time adjustment circuit that adjusts a time response shift between divided frequency bands due to characteristics.