JP4666359B2 - Intercom system for karaoke facilities - Google Patents

Description

  The present invention relates to an intercom system that performs transmission / reception between interphones provided in each of a management room and a singing room in a karaoke facility.

  In recent years, karaoke facilities have been opened everywhere, and it is common for a plurality of singing rooms to be partitioned within the facility and to communicate with the management room using the intercom. . In this case, since it becomes difficult to hear in the singing room due to the volume of singing and playing, it is desired to improve the callability at a low cost regardless of the volume.

  In general, interphone calls are difficult to hear from the other party if the surrounding volume such as noise is high. For this reason, the following patent document proposes a method for making it easy to hear the content of a call and a call even with respect to the surrounding volume.

  Patent Document 1 listed below discloses an intercom system that automatically adjusts the volume of a speaker during a call so that the volume of sound heard by the listener is always constant. Specifically, a lobby interphone, an alarm monitoring board, Assuming that a call is to be made with a home intercom via an amplifier that amplifies an audio signal, a detection circuit that detects a speaker's voice input to a call microphone and a call based on the level detected by the detection circuit A speech volume automatic adjustment circuit having a gain adjustment circuit for adjusting the gain of the amplifier in order to bring the volume of the voice output from the speaker to a predetermined level.

  Patent Document 2 below discloses an interphone device for automatically adjusting the volume of a ringing sound that is ringed from a parent machine to an optimum volume depending on the surrounding conditions of the parent machine. An intercom device that can call a machine and make a ringing sound from a loudspeaker to communicate with each other. The main unit detects human presence and noise level around the main unit with a human body sensor when calling from an entrance unit There is disclosed a configuration having a CPU for adjusting a ringing volume from a loudspeaker by detecting an ambient noise level around a base unit by a circuit and controlling an electronic volume.

JP 2004-207855 A JP 2002-261945 A

  By the way, in the singing room in the karaoke facility as described above, it is common to enjoy the performance and singing with a high volume, and when using an interphone in the singing room, it is difficult to hear the contents of the call. Tend to be. However, the above Patent Document 1 cannot be applied to the intercom system of these karaoke facilities. That is, since the speech volume automatic adjustment circuit described in Patent Document 1 detects the speaker's voice volume, the performance sound and the singer's voice volume are also detected in the singing room of the karaoke facility, and these must be separated. There is a problem that it is difficult to apply, incurs high cost, and cannot be applied after all.

  On the other hand, although it is possible to apply the technology related to the ringing tone described in Patent Document 2 to an intercom system of a karaoke facility, it is necessary to newly arrange a human body monitoring sensor and a noise level detection circuit. However, it cannot be easily applied to this system, resulting in a high cost.

  Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide an intercom system that can improve the callability at a low cost regardless of the volume in a singing room in a karaoke facility.

In order to solve the above-mentioned problem, in the invention of claim 1, an interphone communication network for transmission and reception constructed in a karaoke facility provided with a management room and a predetermined number of singing rooms, and each singing in the karaoke facility There is a normal karaoke function that is installed in the room and displays the corresponding music image on the display means according to the singer's request, and outputs the corresponding performance music from the speaker at a variable volume through the amplification means. A karaoke performance apparatus comprising signal output means for outputting a volume level signal of the performance music set by an operation on the amplification means only when the performance music is output to a speaker; and the interphone communication network installed in the management room of the karaoke facility. Installed in each singing room of the karaoke facility and connected to the management intercom connected to Intended to be connected to the network, a configuration having a room intercom comprising a receiver volume setting means for adjusting the talk volume wherein in proportion to the volume level signal input from the signal output means of the karaoke performance device.

According to the present invention, the intercom communication network is constructed in the karaoke facility, and the karaoke performance apparatus installed in the singing room has a volume level signal of the performance music set by operating the amplification means only when the performance music is output to the speaker. Is configured to adjust the reception volume in proportion to the volume level signal input by the reception volume setting means provided in the interphone installed in the singing room and connected to the interphone communication network. Therefore, it is possible to improve the callability regardless of the volume in the singing room, to be applied within the existing equipment without newly providing a sensor or a detection circuit, and to be configured at low cost. It is something that can be done.

Hereinafter, the best embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing the overall construction of an intercom system for a karaoke facility according to the present invention. In FIG. 1, an interphone system 11 has a management room (including a reception desk and the like) 12 and a predetermined number of karaoke rooms 13 in a karaoke facility, and an interphone communication network 14 in the facility. Is built. A management intercom 21 is installed in the management room 12 and connected to the intercom communication network 14.

  The karaoke room 13 is provided with a karaoke performance device 22 and a room intercom 23, respectively. The karaoke performance device 22 displays a corresponding music image on a display means in response to a singer's request, and amplifying means. It has a normal karaoke function for outputting a corresponding music piece from a speaker with a variable volume via a (mixing amplifier), and a signal output means for outputting a volume level signal operated to the amplification means (see FIG. In this embodiment, the volume level signal is output only when the performance music is output from the speaker.

  The room interphone 23 is connected to the interphone communication network 14 and includes reception volume setting means for adjusting the reception volume based on the volume level signal input from the signal output means of the karaoke performance device 22. (This will be explained with reference to FIG. 2). The signal output means of the karaoke performance device 22 outputs an unadjusted signal to the room intercom 23 when performance music or the like is not output from the speaker.

  Here, FIG. 2 shows a block diagram of the room intercom of FIG. In FIG. 2, the room intercom 23 includes a control circuit 31 for transmission / reception, an amplification circuit 32, a communication circuit 33, a calling speaker 34, a transmitter / receiver 35 (a reception speaker 36, a transmission microphone 37), and a transmission / reception hook 38. Since it is the same as the component part of the conventional intercom, the description is omitted. In this case, the functions of the control circuit 31 and the amplifier circuit 32 are added in the part related to the present invention. The room intercom 23 also includes a reception volume setting circuit 39, an interface circuit 40, and an external input terminal 40A that are reception volume setting means.

  Here, the external input terminal 40A is connected to a signal output means (external terminal shown in FIG. 3) of the karaoke performance device 22 described later by a signal line, and receives an unadjusted signal or a volume level signal via the interface circuit 40. To do. The received sound volume setting circuit 39 is connected to the signal output means (external terminal described later) of the karaoke performance device 22 and is a level signal for adjusting the received sound volume based on an unadjusted signal or a sound volume level signal. Is generated.

  For example, a level signal for gain setting when an unadjusted signal is input is a reference amplification gain determined in advance as a reference value, and a level signal for gain setting when a volume level signal is input is the reference amplification gain. The gain is proportional to the volume level. In this case, the control circuit 31 generates a gain setting signal for the amplifier circuit 32 based on the level signal from the received sound volume setting circuit 39, and controls and amplifies the gain variable element (for example, transistor) provided in the amplifier circuit 32. The output volume from the circuit 32 is changed.

  In other words, the room intercom 23 first receives a level signal for setting the reception volume in the reception volume setting circuit 39 based on the unadjusted signal or the volume level signal input from the karaoke performance device 22 as described above. Gain is set. For example, when a call is received from the management intercom 21 via the interphone communication network 14, the call signal is input to the control circuit 31 via the communication circuit 33, and the call sound is output from the call speaker 34 via the amplifier circuit 32. Is output.

  Therefore, when the customer in the karaoke room 13 picks up the handset 35, the handset hook 38 is switched (which can be either on-switching or off-switching), and a call can be made from the reception speaker 36 and the transmission microphone 37 of the handset 35. It becomes. In this case, the amplifying circuit 32 amplifies the received sound volume with a gain based on the input unadjusted signal or volume level signal. Here, when a volume level signal is input, the gain of the amplifier circuit 32 is made higher than the reference amplification gain in proportion to the volume level signal. The volume level signal may be stored in the reception volume setting circuit 39 as a level value as appropriate. Note that “proportional” may be a state in which the volume level signal and the received sound volume are in a strict proportional linear relationship, but may simply be that the received sound volume is appropriately increased when the volume level is increased.

  Next, FIG. 3 shows a block diagram of the karaoke performance apparatus of FIG. In FIG. 3, the karaoke performance device 22 has a mixing amplifier 42 that is an amplifying unit and a predetermined number of microphones 43 and speakers 44 connected to the processing device 41 constituted by a processing circuit board. The operation panel 45, display means 46, and music DB (database) 47 are connected by a signal line, and a remote input / output terminal 48 is connected wirelessly.

  The mixing amplifier 42 mixes the singing voice of the singer input from the microphone 43 and the music to be played sent from the music tune output means described later, amplifies it, and outputs it from the speaker 44. The operation panel 45 has buttons and knobs for performing various adjustments on performance music and singing voice directly connected to an electronic element such as a variable resistor, an echo, a left / right balance, a volume of an output volume from the speaker 44, and the like. Is provided. The display means 46 has a basic function of displaying video data (lyric video data, background video data, etc.), for example, a cathode ray tube (CRT) display, a liquid crystal display (LCD), a plasma display (PDP). Etc.

  The music DB 47 is a storage device such as a hard disk (HDD), and includes at least music source data (file), music code (table), and video data (file). The music source data (file) stores digital music data and performance time for each music code, and the music code (file) code is associated with a music code and a music name. The video data (file) stores lyrics video data and background video data corresponding to the music (code).

  The remote input / output terminal 48 has a GUI function and is equipped with, for example, an input / output user interface in which a liquid crystal display (LCD) and a touch sensor are stacked, and inputs data such as music selection by the touch sensor. It is something that can be done.

  On the other hand, the processing device 41 is composed of the processing circuit board as described above, and includes the bus 51, the control means 52, the RAM 53, the music search means 54, the music music output means 55, the operation setting means 56, the signal output means 57, and the reproduction control. Means 58 and transmission / reception means 59 are appropriately provided, and an external terminal 60 is provided. The control means 42 controls the system in an integrated manner. For example, a control program is stored in a physical CPU, and the program is expanded in the RAM 53 and executed. The RAM 53 serves as a work area for developing and executing various programs, and is a concept including, for example, a case where the RAM 53 is configured by a semiconductor memory and is virtually built on a hard disk.

  The music search means 54 is for searching for music stored in the music DB 47 for each of new music, singer name, music title, genre, and history, for example, and the program for that is developed in the RAM 53 and executed. The The music tune output means 55 digitally reproduces the music source data of the music extracted from the music DB 47, converts it to analog and outputs it to the mixing amplifier 42, and outputs the digital signal of the music that has been digitally reproduced to the mixing amplifier 42. This is sent to the signal output means 57 at the output timing, and a program for that is developed in the RAM 53 and executed.

  The operation setting means 56 controls the setting of the mixing amplifier 42 based on various setting values set by a volume output volume or the like on the operation panel 45, and outputs the volume level signal set by the volume among these. This is sent to the signal output means 57, and a program for this is developed in the RAM 53 and executed. The signal output means 57 outputs an unadjusted signal to the external terminal 60 when the digital signal of the performance music is not sent from the music music output means 55 (when the performance music is not output to the speaker), and the digital signal Is output (when the performance music is output from the speaker), the volume level signal sent from the operation setting means 56 is output to the external terminal 60, and the program for that is developed in the RAM 53 and executed. Is done.

  The non-adjustment signal or volume level signal output to the external terminal 60 is reflected for each digital signal input from the music piece output means 55 and for each operation of the volume adjustment volume when the digital signal is output. Note that the non-adjustment signal refers to a signal at the lowest or zero level of the volume level operated by the volume adjustment volume, for example, but it is sufficient if it can be distinguished from the volume level signal.

  The reproduction control means 58 outputs video for causing the remote input / output terminal 48 to perform various displays via a transmission / reception means 59 described later, and synchronizes video data corresponding to the selected music code with the music. The program for that purpose is developed in the RAM 53 and executed.

  Next, FIG. 4 shows a processing flowchart of signal output for adjusting the reception volume by the karaoke performance apparatus of FIG. In FIG. 4, the signal output means 57 of the karaoke performance apparatus first inputs a volume level signal from the operation setting means 56 according to the operation of the volume adjustment volume from the operation panel 45 (step (S) 1). Therefore, the signal output means 57 outputs an unadjusted signal to the external terminal 60 (S3) unless the digital signal of the performance music is input from the music song output means 55 (S2). On the other hand, when a digital signal of performance music is input from the music music output means 55 (S2), the volume level signal input from the operation setting means 56 is output to the external terminal 60 (S4).

  Next, FIG. 5 shows a process flowchart for changing the reception volume of the room intercom. The process on the room intercom side in FIG. 5 is divided into a reception volume setting process (FIG. 5A) and a process related to transmission / reception (FIG. 5B). First, in FIG. 5 (A), as a premise, the external terminal 60 of the karaoke performance device 22 outputs the non-adjustment signal or the volume level signal set by the volume of the operation panel 45 as described above. An external input terminal 40 </ b> A of the room intercom 23 is connected to the terminal 60.

  That is, when the unadjusted signal or the volume level signal from the karaoke performance device 22 is input to the received sound volume setting circuit 39 via the IF circuit 40 (S11), and the input signal is an unadjusted signal. The reception volume control circuit 39 generates a level signal of a preset reference amplification gain and outputs it to the control circuit 31 (S12). The control circuit 31 generates a gain setting signal based on the level signal of the reference amplification gain and outputs it to the amplifier circuit 32.

  On the other hand, if the input signal is a volume level signal, the reception volume adjustment circuit 39 generates a level signal for setting the reception volume proportional to the volume level signal and sends it to the control circuit 31 (S13). . In the control circuit 31, a gain setting signal is generated based on the level signal and sent to the amplifier circuit 32, whereby the gain of the amplifier circuit 32 is set in proportion to the volume level signal. .

  The volume level signal is reflected on the external terminal 60 only when a digital signal is output from the music piece output means 55 when the volume adjusting volume is changed in the karaoke performance device 22. Also in the received sound volume setting circuit 39 and the control circuit 31, a gain setting signal proportional in real time is sent to the amplifier circuit 32 and reflected in the magnitude of the received sound volume. As described above, in the room intercom 23, the level value of the input volume level signal may be stored in the reception volume setting circuit 39 and updated when the changed volume level signal is input next time.

  Therefore, in FIG. 5B, for example, when a call is made from the management intercom 21 of the management room 12 to the room intercom 23 via the intercom communication network 14 (S21), a call signal input via the communication circuit 33. Based on the above, the control circuit 31 sends a ringing tone output signal to the amplification circuit 32 to output the ringing tone from the calling speaker 34 (S22). In response to this, the handset 35 of the room intercom 23 is picked up and the transmission / reception hook is switched to enable a call (S23).

  In the call state, when the received audio signal is input to the amplifier circuit 32 via the communication circuit 33 and the control circuit 31 (S24), the amplifier circuit 32 generates an unadjusted signal input from the karaoke performance device 22. Since the amplification degree is set with a gain according to or a gain proportional to the volume level signal, the audio signal is reproduced from the reception speaker 36 of the handset 35 at a volume corresponding to this (S25). .

  In this way, the callability can be improved regardless of the volume being played in the karaoke room 13, and can be applied within the existing equipment without newly providing a sensor or detection circuit. It can be configured at low cost.

  By the way, the adjustment of the playback volume of the performance music in the karaoke performance device 22 can be performed from the remote input / output terminal 48 in addition to the operation panel 45. In this case, the volume level signal for the volume adjustment is also used. If the operation setting means 56 is made to input via the transmission / reception means 59, it can carry out similarly.

  Moreover, although the case where the external terminal 60 of the karaoke performance apparatus 22 and the external input terminal 40A of the room intercom 23 are connected by a signal line is shown in the above embodiment, it can also be connected by a wireless system. For example, a transmitter may be connected to the external terminal 60 of the karaoke performance device 22, and a receiver may be connected to the external input terminal 40A of the room intercom 23. This is particularly effective when it is difficult to route signal lines.

  The intercom system for a karaoke facility according to the present invention is suitable for a case where transmission / reception is performed by an interphone between a management room and a singing room or between singing rooms.

It is a block diagram of the whole construction in the intercom system of the karaoke facility which concerns on this invention. It is a block block diagram of the room intercom of FIG. It is a block block diagram of the karaoke performance apparatus of FIG. It is a processing flowchart of the signal output for reception volume adjustment by the karaoke performance apparatus of FIG. It is a process flowchart of the listening volume variable of a room intercom.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Intercom system 12 Management room 13 Karaoke room 14 Interphone communication network 21 Management side interphone 22 Karaoke performance device 23 Room intercom 31 Control circuit 32 Amplifier circuit 35 Handset 36 Earpiece speaker 39 Received sound volume setting circuit 40A External input terminal 41 Processing device 42 Mixing Amplifier 44 Speaker 45 Operation panel 60 External terminal

Claims (1)

An intercom communication network for transmission and reception constructed in a karaoke facility comprising a management room and a predetermined number of singing rooms;
Installed in each singing room in the karaoke facility, displays the corresponding music image on the display means according to the request of the singer, and outputs the corresponding performance music from the speaker with variable volume via the amplification means A karaoke performance device comprising a signal output means for outputting a volume level signal of a performance music set by an operation on the amplification means only at the time of speaker output of the performance music.
A management intercom installed in the management room of the karaoke facility and connected to the intercom communication network;
A reception device that is installed in each singing room of the karaoke facility and is connected to the intercom communication network and adjusts the reception volume in proportion to the volume level signal input from the signal output means of the karaoke performance device. A room intercom equipped with a volume setting means;
An intercom system for a karaoke facility.

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