JPH04135800U - audio equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To provide audio equipment that can improve the degree of freedom and reduce the occupied space. [Structure] A signal transmission path is divided into an input side signal transmission path 15 and an output side signal transmission path 16, and these are connected to a main body side connector. A module 7 having an effect circuit 14 and a connector connected thereto is provided. The module side connector is detachably connected to the main body side connector. Prepare multiple modules to obtain sound effects and install them selectively.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is applicable to audio equipment such as mixers and cassette tape recorders with mixers. (Audio equipment).

0002

[Conventional technology]

Connect an effector to the mixer to create sound effects (reverberation, timbre changes, etc.) That is already being done. The effector is connected to the mixer using a cable. It is carried out by In other words, the jacks installed on the mixer and effector respectively. The two are connected by inserting cable plugs into each.

0003

[Problem that the idea aims to solve]

If you connect effects to your mixer with cables, the cables get in the way and the system The downsizing of the system is hindered. It is also possible to incorporate an effector into the mixer. , it becomes impossible to selectively obtain various acoustic effects, and the degree of freedom becomes low.

0004 Therefore, the purpose of this invention is to create an audio system that can reduce space and increase the degree of freedom. The aim is to provide equipment for

[0005]

[Means to solve the problem]

To achieve the above object, the present invention is an audio equipment that processes audio signals. The sound that is connected to the main body container of the audio equipment using a plug-in method. It has a module for giving a sound effect, and the module is attached to the main container. The audio signal transmission line is connected to the input side transmission line and the output side transmission line so that it can be detachably connected to the The input side transmission line and the output side transmission line are connected to a first connection. the first connector is fixedly arranged on the main container side. and the module has a second connector removably coupled to the first connector. and a signal processing circuit of the module is connected to the first and second connectors. The transmission line is connected between the input side transmission line and the output side transmission line via a This is related to audio equipment that is characterized by

[0006] Note that the power lines are connected to each other by the first and second connectors, and power can be supplied to the module from the

[0007]

[Effect]

Depending on the module, effects such as reverberation and timbre changes can be obtained. Moju The cable is detachably attached by connecting the first and second connectors. , can be replaced with a module of different performance. When connecting the power line with a connector, an independent circuit is provided on the module side. It becomes unnecessary to provide a road.

[0008]

【Example】

Next, with reference to FIGS. 1 to 9, a multi-channel with mixer according to an embodiment of the present invention will be explained. The mixer section of the channel tape recorder will be explained. FIG. 1 shows a mixer section of a multi-channel tape recorder. first and second Between the channel input terminals 1 and 2 and the output terminals 3 and 4, amplifiers 5 and 6 are connected to the first and second channels. and second modules (assembly circuits) 7, 8, third module 9, and variable resistor 1. 0 and 11 and amplifiers 12 and 13 are connected in this order.

[0009] Mixer body for connecting the first, second and third modules 7, 8, 9 Connectors are provided on both the side and the module side and are removably coupled. The connector of the first module 7 has connection terminals (contact pieces) A, B, C, D, and E. , the mixer side has connection terminals (connection pins) a, b, c, d, and e. first moji The module 7 has an effect circuit 14 for changing frequency characteristics (timbre), and this The input side terminal is connected to the input side signal transmission line 15 via the connection terminals A and a of the connector. Then, the output side terminal is connected to the output side signal transmission line 16 via the connection terminals C and c of the connector. It is continued. Note that the connection terminal d is connected to the power line on the mixer side, and the connection terminal The output terminal D is connected to the power terminal of the effect circuit 14. Connection terminal e is ground The connection terminal E is connected to the ground line of the effect circuit 14. Ru. The connector of module 7 has unused connection terminals B. Connecting the connector on the main body Connection terminals b and g are auxiliary terminals and are connected to amplifier 19 by lines 17, 18. has been done. The output terminal of this amplifier 19 is switched between a variable resistor 20 and an amplifier 21. It is connected to an auxiliary output terminal 23 via a switch 22.

0010 The second module 8 has the same function as the first module 7, and is The effect circuit 24 has an input terminal that transmits the input side signal via the connection terminals F and f. It is connected to the transmission line 25, and the output terminal is connected to the output side signal transmission line 26 via the connection terminals H and h. The power terminal is connected to the mixer's power line through the connection terminals I and i of the connector. The ground terminal is connected to the ground terminal of the mixer via the connection terminals J and j of the connector. Connected to the land line. In addition, the connector of module 8 is an unused connection end. Has child G.

[0011] The third module 9 includes a stereo effect circuit 27, and the first input terminal is It is connected to the signal transmission line 16 through the connection terminals K and k of the connector, and the second input terminal is connected to the signal transmission line 26 via the connection terminals L and l of the connector, and the first output terminal The child is connected to the signal transmission path 28 through the connection terminals N and n of the connector, and the second output The terminal is connected to the signal transmission path 29 via the connector's connection terminals O, o, and is connected to the power supply terminal. is connected to the power line of the mixer via the connection terminals P and p of the connector, and the ground The ground terminal is connected to the ground line of the mixer via the connecting terminals Q and q of the connector. It is. Note that the connector of module 9 has an unused connection terminal M, and The connecting terminal m on the side of the mixer facing the other side is connected to the contact b of the changeover switch 22.

0012 Each effect circuit 14, 24, 27 includes an amplifier, a capacitor, a resistor, and a variable resistor. etc., and is configured to be able to change the frequency characteristics of the audio signal. There is.

[0013] Figure 2 shows the principle of the operation surface of a tape recorder including modules 7, 8, etc. 3 shows a cross section taken along line A-A in FIG. Modules 7, 8 and 9 plug into the operating surface 30 It is designed to be installed according to the method. The first and second modules 7, 8 are substantially Since they are formed with the same structure, common parts are given the same reference numerals. . The first and second modules 7, 8 are arranged substantially in the same plane as the operating surface 30. a front plate 31 arranged at right angles to the front plate 31; a circuit board 32 disposed perpendicularly to the front plate 31; 2 and the electronic component 33 and connector 34 attached to the front plate 31. It consists of a variable resistor 35 for adjusting frequency characteristics. There are books in the main container 36 on the mixer side. The body side connector 37 is fixed, and the module side connector 34 can be attached and detached here. currently connected. Although not shown, the front plate 31 of the modules 7 and 8 has , there is a display indicating that it is an effector for easy identification.

[0014] The first, second and third modules 7, 8 and 9 are installed as shown in Figure 1. In this case, the stereo input signals at input terminals 1 and 2 are sent to amplifiers 5 and 6, and circuits 14 and 24, a stereo effect circuit 27, variable resistors 10 and 11, It is sent to output terminals 3 and 4 via amplifiers 12 and 13. Modules 7 and 8 are variable Since the resistor 35 is included, the frequency characteristics can be adjusted.

[0017] Figures 4 to 7 show other modules to be installed in place of modules 7 and 8 in Figure 1. 40, 50, 60, and 70 are shown. In FIGS. 4 to 7, modules 40, 50, 60, 70 is shown to correspond to the first module 7 of FIG. It can also be used in place of Rule 8. Module 40 of FIG. 4 includes a variable resistor for distributing signals to line 17 of FIG. Contains a container 41. Connection terminals A, B, and C of this connector are the mixer side connectors in Figure 1. are connected to connection terminals a, b, and c of the. Attach the module 40 in Figure 4 to the device in Figure 1 When the signal transmission line 15 and 16 are connected by the connecting conductor 42 of the module 40, A part of the input signal is branched to line 17 via variable resistor 41. Note that the module 40 has unused connection terminals D and E.

[0018] The module 50 in FIG. 5 has connection terminals a, c, d, and e of the mixer side connector in FIG. In addition to the connection terminals A, C, D, and E of the module side connector connected to the It has a jack terminal 51 for adding an input signal. Connection terminal A and jack The terminals 51 are connected to amplifiers 52, respectively. Therefore, the amplifier 52 has a connection terminal A mixed signal of the input signal from A and another input signal supplied to the jack terminal 51 is input. Strengthen. The output terminal of the amplifier 32 is connected to the connection terminal C of the connector. Also The power terminal and ground terminal of the amplifier 52 are connected to the connection terminals D and E of the connector. ing. Note that the module 50 has an unused connection terminal B.

[0019] The module 60 in Figure 6 is connected to the connection terminals a, c, d, and e of the connector on the main body side in Figure 1. It has connection terminals A, C, D, and E for the module-side connector to be connected. Connection terminal A A tone control and equalizer circuit 61 is connected between and C. The power supply terminal and ground terminal of this circuit 61 are connected to the connection terminals D and E of the connector. It is. Note that the module 60 has an unused connection terminal B.

[0020] The module 70 in FIG. 7 is connected to the connection terminals a and c of the main body side connector in FIG. It has connection terminals A and C of the module side connector. There is a conductor between connection terminals A and C. 71. When it is not necessary to obtain acoustic effects, use the module shown in Figure 7. A module 70 is installed in place of module 7 and/or 8 in FIG. In addition, the module Connection terminals B, D, and E of the cable 70 are not used.

[0021] 8 and 9 are modules that can be used in place of module 9 in FIG. 80 and 90 are shown. Module 80 in FIG. 8 is a combination of module 9 in FIG. The module connected to the connection terminals k, l, m, n, o, p, and q of the main body connector It has connection terminals K, L, M, N, O, P, and Q on the side connector, and has a stereo It has an effect circuit 81. Input of effect circuit 81 for changing frequency characteristics The power terminal is connected to the connection terminal M of the connector, and the two output terminals are connected to the signal line 82, 83. The signal lines 82 and 83 are connected between the connection terminals KN of the connector and Connects between LOs. Therefore, the stereo signals input to connection terminals K and L have no effect. The outputs of the effect circuit 81 are mixed and sent to connection terminals N and O. At this time, Figure 1 The changeover switch 22 is turned on to contact b. Power terminal of effect circuit 81 and The ground terminal is connected to connection terminals P and Q of the connector.

[0022] Module 90 in Figure 9 is a connector on the main body side for connecting module 9 in Figure 1. Connection end of module side connector connected to connection terminals k, l, n, o, p, q of It has children K, L, N, O, P, and Q, and also has a tape recorder unit 91. The two recording signal input terminals of the tape recorder unit 91 are the connection terminals K of the connector. , L, and the two playback output terminals are connected to connection terminals N and O of the connector, The power supply terminal and ground terminal are connected to connection terminals P and Q of the connector.

[0023] Instead of modules 7, 8, 9, modules 40, 50, 6 shown in FIGS. Acquire sound effects by preparing single or multiple 0, 70, 80, 90 The degree of freedom for Additionally, each module is installed using a plug-in method. This makes it possible to save space and is easy to use. Also, the main unit side and module Various modules can be installed by standardizing the wall-side connector. becomes possible. Users can upgrade the system grade without purchasing all the modules. There is also a cost advantage as you only need to purchase modules depending on the upgrade.

[0024]

[Modified example]

The present invention is not limited to the above-mentioned embodiments, but can be modified as follows, for example. It is. (1) When it is not necessary to obtain acoustic effects, the module 70 shown in Fig. 7 can be installed. Instead, when the module 7 etc. is not installed, the input side signal transmission line 15 and A switch for automatically connecting the output side signal transmission line 16 or a manual connection. A connection terminal can be provided for the purpose. (2) Attach connectors to modules 7, 8, and 9 to connect other modules. It can be provided in modules 7, 8, and 9. (3) A mixer so that multiple modules can be connected in series or in parallel. A plurality of connectors can be provided in series or in parallel on the server side.

[0025]

[Effect of the idea]

According to the inventions of claims 1 and 2, it is possible to easily obtain acoustic effects with a high degree of freedom. Wear. Furthermore, the device can be made smaller. According to the invention of claim 2, the power supply circuit can be further simplified.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing a mixer section of a tape recorder according to an embodiment of the present invention.

FIG. 2 is a plan view showing a part of the mixer section of FIG. 1;

FIG. 3 is a sectional view taken along line AA in FIG. 2;

FIG. 4 is a circuit diagram showing another module.

FIG. 5 is a circuit diagram showing another module.

FIG. 6 is a circuit diagram showing another module.

FIG. 7 is a circuit diagram showing another module.

FIG. 8 is a circuit diagram showing another module.

FIG. 9 is a circuit diagram showing another module.

[Explanation of symbols]

7 module 14 Effect circuit 15 Input side signal transmission line 16 Output side signal transmission line 34 Module side connector 37 Main unit side connector

Claims (2)

[Scope of utility model registration request] 1. An audio device that processes audio signals, comprising a module for providing a sound effect that is coupled to a main body container of the audio device in a plug-in manner, and the module is detachable from the main body container. The audio signal transmission line is divided into an input side transmission line and an output side transmission line for freely coupling, and the input side transmission line and the output side transmission line are connected to a first connector, and the The first connector is fixedly arranged on the main body container side, the module includes a second connector detachably connected to the first connector, and the signal processing circuit of the module is connected to the first connector. and a second connector, the audio device is connected between the input side transmission path and the output side transmission path. 2. The audio device according to claim 1, wherein the first and second connectors have power connection terminals.