JP5434003B2 - Audio equipment, audio signal processing apparatus, and audio system - Google Patents

Description

  The present invention relates to an audio device and an audio system that output device-specific information.

  Conventionally, in a PA system, when an analog audio device such as a microphone is attached to a mixer, a label for identification is often attached to the mixer or an audio cable in order to confirm the connection.

  In the case of a digital audio device, there is an application that can input the connection state (label name) of each audio device, and the connection can be confirmed on the screen.

In addition, a method of confirming a network connection status using RFID has been proposed (see, for example, Patent Document 1).
JP 2003-143147 A

  However, the operation of attaching an identification label to a mixer or cable is very complicated. Further, even in the case of a digital audio device, it is necessary to input a connection state, and it is also necessary for an operator to visually confirm the connection state in advance, which is also complicated. In addition, if the label is applied incorrectly or the input is incorrect, it is not possible to immediately determine which device is incorrect.

  Further, in the case of the method of Patent Document 1, it is necessary to attach an IC tag reader for each connector, and there is a problem in that manufacturing costs are increased. In addition, the method of Patent Document 1 is for confirming the network connection status between electronic devices, and cannot be used for confirming the connection of audio devices.

  Accordingly, an object of the present invention is to provide an audio device and an audio system that can easily check the connection state.

  The acoustic device of the present invention is configured so that device-specific information, which is an ID (unique information) for each device, is embedded in an information providing unit made up of an IC tag or the like and can be read by an information reader such as an IC tag reader. ing. In addition, the acoustic device includes a superimposing unit that superimposes information corresponding to the device specific information on the audio signal, and outputs the audio signal from the output unit.

  The acoustic system of the present invention comprises an acoustic device and an information reading device to which the acoustic device is connected. The information reading apparatus includes an information reading unit such as an IC tag reader, and a storage unit that stores the attribute information of the audio device in association with the read device specific information. The attribute information of the acoustic device is, for example, a manufacturer name or a device name. The information reading device includes a decoding unit that receives an audio signal from an audio device and decodes information corresponding to device-specific information superimposed on the audio signal. And a control part reads the attribute information linked | related with the said apparatus specific information with reference to the said memory | storage part with the decoded information. The read attribute information can be displayed on a display unit such as an LCD.

  In addition, the acoustic system of the present invention can include an acquisition unit that acquires attribute information, and can be configured to change the attribute information stored in the storage unit. In this case, the manufacturer name, the device name, and the like can be changed to names used on site (such as vocal microphones and chorus microphones), and the connection state can be more easily confirmed.

The information reader is connected to the acoustic device for each of a plurality of channels, the attribute information includes identification information for identifying the acoustic device, and the information reader is identification information for identifying the acoustic device. Can be configured to include a display unit for displaying each channel to which the acoustic device is connected .

  The attribute information may include control information for controlling an external device, and the control unit may output a control signal for controlling the external device based on the attribute information.

  In this way, not only confirmation of the connection state but also processing suitable for each connected audio device can be automatically performed.

According to the present invention, while providing device-specific information in the information read - device can output the information corresponding to the device-specific information in a single audio signal lines. Therefore, Rutotomoni reading the device-specific information in the information reading device separately, by decoding the information corresponding to the device-specific information from the audio signal, it is possible to determine the devices connected, easily confirm the connection state can do.

  FIG. 1 is a block diagram showing a configuration of an acoustic system according to an embodiment of the present invention. In FIG. 1, an acoustic device that generates an audio signal itself (for example, a microphone, a guitar, and a keyboard) is taken as an example, and an information reader that is connected to a large number of acoustic devices (for example, a mixer) is taken as an example. To do. In addition, in the same figure, in order to demonstrate easily, the example which connects one audio equipment to a mixer is shown, However, actually, it connects and uses several audio equipment to a mixer. .

  The acoustic system according to the present embodiment can check the connection state by simply reading the device ID from the IC tag attached to each acoustic device in advance and connecting each acoustic device in actual use. Is.

  In FIG. 1, the acoustic device 1 includes an IC tag 11, a storage unit 12, an audio signal generation unit 13, a superimposition unit 14, and an output I / F (output unit) 15. The mixer 2 includes an IC tag reader (information reading unit) 21, a user I / F 22, a network I / F 23, an attribute information acquisition unit 24, a device ID / attribute table 25, an audio signal input unit 26, a decoding unit 27, a control unit 28, A display unit 29 and an audio signal processing unit 30 are provided.

  The IC tag 11 provides the IC tag reader 21 with a device ID 111 that is device-specific information of the audio device. Although the IC tag reader 21 is shown as an example provided in the mixer 2, it can also be realized by a portable reading terminal or the like. Further, the information providing unit and the information reading unit according to the present invention are not limited to the IC tag and the IC tag reader, and other methods such as a barcode can be used.

  The storage unit 12 stores a device ID 121 and can be read by the superimposing unit 14. Note that the device ID 121 stored in the storage unit 12 is information corresponding to the device specific information, but it is not necessarily the same as the device ID 111 and may be associated with each other.

  The IC tag reader 21 supplies the read device ID 111 to the control unit 28. The control unit 28 registers the device ID 111 in the device ID / attribute table 25. Here, the control unit 28 acquires the attribute information (device attribute information) of the acoustic device from the attribute information acquisition unit 24 and registers it in the device ID / attribute table 25 in association with the device ID 111. The device attribute information includes the manufacturer name and device name of the audio device, audio signal adjustment content, content for controlling the external device, and the like. Details will be described later with reference to FIG.

  Device attribute information acquisition methods include manual acquisition by the user I / F 22 and automatic acquisition by the network I / F 23. When performing manual acquisition by the user I / F 22, a user (worker) directly inputs identification information or the like directly.

  When performing automatic input by the network I / F 23, the control unit 28 supplies the device ID 111 to the attribute information acquisition unit 24, and the attribute information acquisition unit 24 acquires the device attribute information from the attribute information management DB 3 via the network. In the attribute information management DB 3, device attribute information is associated with each device ID of the audio device and stored in a database, and the corresponding device attribute information is referred to by referring to the device ID transmitted from the attribute information acquisition unit 24. Reply.

  As described above, the mixer 2 registers the device ID of the audio device. The registration work is performed by the user before the actual use (at the stage of preparation). When the user actually connects and uses each acoustic device, the acoustic system performs the following processes and operations.

  The audio signal generator 13 generates an audio signal and supplies it to the superimposing unit 14. When the acoustic device is a microphone, the audio signal generation unit 13 collects external sound and generates an audio signal. When the acoustic device is an electronic musical instrument, a musical sound is generated by itself. The audio signal of the present invention is not limited to an analog signal, and may be a digital signal.

  The superimposing unit 14 reads the device ID 121 from the storage unit 12 and superimposes the device ID 121 on the audio signal. The superimposing unit 14 may always superimpose the device ID 121 on the audio signal, or superimposes the device ID 121 only for a predetermined time (for example, about several seconds) after the audio device 1 is connected to the mixer 2. You may make it do. In the case of superimposing only for a predetermined time, the superimposed signal is not output when an actual musical sound is generated during a live performance or the like, so that the listener does not feel uncomfortable.

  The output I / F 15 outputs an audio signal on which the device ID 121 is superimposed. The mixer 2 is connected to the output I / F 15 via an audio cable. An audio signal is input from the output I / F 15 to the audio signal input unit 26 of the mixer 2.

  The audio signal input unit 26 supplies the input audio signal to the decoding unit 27 and the audio signal processing unit 30. The audio signal supplied to the audio signal processing unit 30 is subjected to acoustic adjustment such as equalizing and output to the outside. The content of the acoustic adjustment is set by the control unit 28.

  The decoding unit 27 decodes the device ID 121 superimposed on the audio signal. The decrypted device ID 121 is supplied to the control unit 28. The control unit 28 is also supplied with information indicating the channel to which the audio device is connected, and is used for processing according to device attribute information described later.

  The control unit 28 refers to the device ID / attribute table 25 with the device ID 121 input from the decryption unit 27 and reads the device attribute information associated with the device ID 111. If the device ID 111 and the device ID 121 are exactly the same, the device ID / attribute table 25 may be referred to by the device ID 121 as it is. However, if these are different information associated with each other, the device ID 111 and the device ID 121 are used. Perform matching. For example, the correspondence relationship between the device ID 111 and the device ID 121 is described in advance in the table, and the control unit 28 reads the correspondence relationship and reads the device attribute information.

  FIG. 2A is a diagram showing the description content of the device ID / attribute table 25. A plurality of device IDs (device IDs 111) are described in the left column of the table shown in FIG. 5A, and device attribute information as shown in the right column is associated with the device ID. The device attribute information includes identification information indicating the manufacturer name and device name of the audio device, processing information indicating the adjustment content of the audio signal, device control information indicating the content for controlling the external device, and the like. For example, a “Yamaha directional microphone” is associated as identification information with an acoustic device whose device ID is M00012. Further, “middle enhancement” is associated with the processing information, and “illumination on” is associated with the device control information.

  The control unit 28 performs various processes according to the read device attribute information. For example, the identification information is displayed on the display unit 29. The display unit 29 is a monitor such as an LCD provided on the mixer (for example, each channel), and displays identification information of the audio equipment connected to each channel. For example, when an audio device with device ID M00011 is connected to channel 1, a message indicating that a Yamaha directional microphone is connected to the LCD of channel 1 is displayed.

  As described above, the audio system according to the present embodiment is connected to each channel by reading the IC tag of each audio device in advance with the IC tag reader of the mixer and connecting the audio device in use. Since the device name and the like can be confirmed, the connection state can be easily confirmed. Therefore, there is no need to affix an identification label or visually confirm and input the connection status, and even if the connection is wrong, it is immediately determined which device is wrong. be able to.

  In addition, the acoustic system according to the present embodiment can easily perform not only the confirmation of the connection state but also processing suitable for the acoustic device connected to each channel. That is, when the processing information is included in the device attribute information, the control unit 28 instructs the audio signal processing unit 30 to adjust the audio signal of the channel to which the acoustic device is connected. For example, when “middle sound emphasis” is described in the processing information, the control unit 28 instructs the audio signal 30 to lower the level of the equalizer treble and raise the middle sound level. In addition, when the processing information describes that a predetermined effector is turned on, such as “compressor, on”, the control unit 28 instructs the audio signal processing unit 30 to add the effector. .

  In addition, when the device control information is included in the device attribute information, the control unit 28 can also generate and output an external device control signal. For example, if “lighting on” is described in the device control information, a control signal for turning on the lighting is generated and output to the outside.

  Moreover, the acoustic system of this embodiment can also change identification information etc. suitably according to a use condition by performing manual input of the apparatus specific information by user I / F22. For example, as shown in FIG. 2B, each identification information is not a manufacturer name or a device name, but “chorus microphone”, “vocal microphone”, “bass drum microphone”, “guitar direct input”, “guitar direct input”, “ The name can be changed to a name used in an actual site such as “keyboard direct input”. Therefore, the connection state can be confirmed more easily. In addition, the processing information can be changed (for example, the chorus microphone is emphasized in the middle sound, the bass drum microphone is emphasized in the bass sound, etc.), and the device control information can be changed (for example, in the bass drum microphone) No control, stage down for guitar direct input).

  Next, FIG. 3 is a block diagram illustrating a configuration of an acoustic system according to another example. In addition, about the structure which is common in FIG. 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted. The acoustic device 5 in this case is, for example, an adapter connected in the middle of the audio cable, a microphone holder provided with a terminal for directly connecting a microphone, and a normal musical instrument or microphone is connected thereto. In the example of the figure, an example in which the microphone 7 is connected via an audio cable is shown.

  The acoustic device 5 includes an input I / F 17 for inputting an audio signal, and inputs the audio signal from the microphone 7. Then, the superimposing unit 14 superimposes the device ID 121 on the audio signal input from the input I / F 17 and outputs it to the mixer 2 via the output I / F 15.

  As described above, the audio device and the audio system of the present invention can be realized by retrofitting an existing apparatus (such as a microphone, an electric musical instrument, or an electronic musical instrument) that generates an audio signal.

It is a block diagram which shows the structure of the acoustic system which concerns on embodiment of this invention. It is a figure which shows the table which prescribed | regulated the relationship between apparatus ID and attribute information. It is a block diagram which shows the sound system structure which concerns on another example.

Explanation of symbols

1-acoustic equipment 2-mixer

Claims (6)

A superimposing unit that superimposes information corresponding to the device-specific information on the audio signal;
An output unit that outputs an audio signal on which information corresponding to the device-specific information is superimposed, to an audio signal processing device that processes the audio signal;
A device-specific information providing unit in which the device-specific information is embedded so that the device-specific information can be read separately from the audio signal by the audio signal processing device;
Audio equipment equipped with.   An audio signal processing apparatus to which an audio device is connected,
  A device specific information reading unit for reading device specific information from the acoustic device;
  A storage unit that stores in advance the device unique information read by the device specific information reading unit in association with the device attribute information of the acoustic device;
  An input unit for inputting an audio signal from the acoustic device;
  A decoding unit that decodes another information associated with the device specific information superimposed on the audio signal input from the input unit;
  A control unit that refers to the storage unit with the information decoded by the decoding unit, reads the device attribute information associated in advance with the device specific information, and executes processing according to the read device attribute information;
  An audio signal processing apparatus comprising: An audio system comprising an audio device and an audio signal processing device to which the audio device is connected,
The audio signal processing device includes:
A device specific information reading unit for reading device specific information from the acoustic device;
A storage unit in the device-specific information read by the device-specific information reading unit, previously stored in association with device attribute information of the audio apparatus,
An input unit for inputting an audio signal from the acoustic device;
A decoding unit for decoding the different information associated with the device-specific information superimposed on the audio signal input from the input unit,
A control unit for referring to the storage unit in decoded information by the decoding unit, the de-read the device attribute information associated beforehand to the device-specific information, performs a process corresponding to the read device attribute information,
Sound system with The audio signal processing device includes a device attribute information acquisition unit for further acquires the device attribute information,
The device attribute information acquisition unit, an acoustic system according to claim 3 to change the device attribute information stored in the storage unit in accordance with the device attribute information acquiring unit is acquired device attribute information. The audio signal processing device is connected to the acoustic device for each of a plurality of channels,
The device attribute information includes identification information for identifying the acoustic device,
The audio system according to claim 3 or 4 , wherein the audio signal processing device includes a display unit that displays identification information for identifying the audio device for each channel to which the audio device is connected. The device attribute information includes control information for controlling an external device,
Wherein the control unit, the device attribute claims information for outputting a control signal for controlling an external device connected to the audio signal processing apparatus based on the 3, according to claim 4 or claim 5, Acoustic system.

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