Electronic apparatus and controlling method of the electronic apparatus

Abstract

To provide an electronic apparatus capable of easily performing setting related to an input / output terminal that can be set by a user without the user being aware of a connection state between an input terminal and an output terminal.SOLUTION: An electronic apparatus includes: connection means of electronically connecting any one of a plurality of audio input terminals to an audio output terminal based on a connection state of a device with respect to a plurality of audio input terminals and a priority of each of the plurality of audio input terminals set in advance; and display means of displaying a setting screen for changing a setting related to the audio input terminal selected by a user among the audio input terminals connected to the audio output terminal and a setting related to the audio output terminal to which the audio input terminal selected by the user is connected. The setting screen is displayed so that the user cannot change the setting related to a setting item that cannot be changed by the user among the setting items related to the plurality of audio input terminals and the setting items related to the audio output terminal to which the audio input terminal selected by the user is connected in accordance with the connection state.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an electronic device and a method for controlling an electronic device. [Background technology]

[0002] Today's electronic devices with sound recording capabilities, such as digital cameras, are equipped with a signal processing engine for processing audio signals, allowing users to freely program the sound system configuration (e.g., signal processing settings) to suit a wide variety of situations. These electronic devices display a screen (window) showing the signal processing configuration on a display, allowing users to configure the internal configuration of the sound system using an operating device. Specifically, users can configure the layout of control elements (components) for various audio signal processing recording settings and the wiring between each component on a personal computer (PC) display. By configuring the layout and wiring of components, users can freely program the internal configuration (e.g., signal processing content) of the sound system. Components include mixers, compressors, various effects, faders, ON / OFF switches, etc. The user can, for example, connect any input terminal to the input side of any component and any output terminal to the output side of that component, thereby connecting the input terminal and output terminal. As a result, the user can set a signal communication path for outputting an audio signal input from an input terminal, via a component, from an output terminal as a signal processing circuit of the signal processing engine.

[0003] The signal processing engine has a predetermined number of buses, and outputs or records a plurality of audio signals input from a plurality of input terminals to an output terminal selected to configure a specified signal processing circuit. Because the multiple input terminals are connected to the output terminal via a plurality of buses, the internal structure of the signal processing engine is complex.

[0004] Each component can be classified according to its characteristics into those set for the input terminal and those set for the output terminal (recording side). When configuring the signal processing circuit that passes through each component provided in the signal processing engine, the user makes various settings related to the input terminal and output terminal.

[0005] In electronic devices that process audio signals from multiple input terminals and output them to multiple output terminals, user settings become complicated. For example, cinema cameras accept user settings by displaying settings for all input and output terminals on a screen. However, it is difficult for users to build a signal processing circuit with multiple input and output terminals without fully understanding the complex internal configuration. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-273384 Summary of the Invention [Problem to be solved by the invention]

[0007] Patent Document 1 discloses an audio signal processing device that allows an operator (user) to easily set a signal communication path between any audio input / output device by arbitrarily connecting a display object of an audio signal input device and a display object of the same output device. The user establishes a path by connecting an input terminal and an output terminal, and also configures a signal processing circuit by adjusting the parameter settings of components, etc. on the wiring path. However, it is difficult to set parameters of components, etc. on the wiring path. When adjusting the parameters, if the user does not understand the wiring state of the input / output terminals, it may be difficult to determine which parameters to adjust.

[0008] An object of the present invention is to provide an electronic device that allows a user to easily set input and output terminals that can be set without being aware of the wiring state between the input and output terminals. [Means for solving the problem]

[0009] The electronic device of the present invention comprises a plurality of audio input terminals, one or more audio output terminals the number of which is equal to or less than the number of the plurality of audio input terminals, a connection means for electronically connecting one of the plurality of audio input terminals to each of the one or more audio output terminals based on the connection status of devices to the plurality of audio input terminals and the predetermined priority of each of the plurality of audio input terminals, and a display means for displaying a setting screen for changing settings for an audio input terminal selected by a user from among the audio input terminals connected to the one or more audio output terminals, and settings for the audio output terminal to which the audio input terminal selected by the user is connected, and is characterized in that the display means displays the setting screen so that the user cannot change settings for setting items that the user cannot change, among the setting items for the plurality of audio input terminals and the setting items for the audio output terminal to which the audio input terminal selected by the user is connected, depending on the state of the wiring by the connection means. [Effects of the Invention]

[0010] According to the present invention, the user can easily set input / output terminals that can be set, without being aware of the wiring state between the input terminals and the output terminals. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a block diagram showing an example of the configuration of a digital camera; [Figure 2] 10 is a flowchart illustrating a sound recording preparation process when taking a picture with a digital camera. [Figure 3] 10 is a flowchart illustrating an example of an automatic switching process of an input / output terminal. [Figure 4] 10A and 10B are diagrams illustrating combinations of input / output terminals according to connection statuses of input terminals; [Figure 5] FIG. 10 is a diagram illustrating a setting screen when input and output terminals are connected one-to-one. [Figure 6] FIG. 10 is a diagram illustrating a selection screen for selecting an input terminal to be set. [Figure 7] FIG. 10 is a diagram showing an example of a selection screen for selecting an input terminal to be set. [Figure 8] FIG. 10 is a diagram showing an example of a setting screen for input terminals and corresponding output terminals. [Figure 9] 10 is a flowchart illustrating a control process of an input terminal selection screen. DETAILED DESCRIPTION OF THE INVENTION

[0012] <Embodiment> 1 is a block diagram showing an example of the configuration of a digital camera 100 as an example of an electronic device according to the present invention.

[0013] The barrier 10 is a protective member that covers the imaging section of the digital camera 100, including the photographing lens 11, to prevent the imaging section from getting dirty or damaged. The photographing lens 11 forms an optical image on the imaging surface of the imaging element 13. The shutter 12 has an aperture function. The imaging element 13 converts the optical image formed on the imaging surface into an electrical signal. The imaging element 13 includes, for example, a CCD or CMOS element.

[0014] The A / D converter 15 converts the analog signal (image signal) output from the imaging element 13 into a digital signal (image; image data). The digital signal converted by the A / D converter 15 is written to the memory 25 as RAW image data. The A / D converter 15 generates development parameters corresponding to the RAW image data based on information at the time of shooting and writes them to the memory 25. The development parameters include various parameters such as exposure settings, white balance, color space, and contrast. The development parameters are used in image processing when recording an image in a format such as JPEG. The D / A converter 21 converts the digital signal (image; image data) output from the memory control unit 22 into an analog signal.

[0015] The timing generator 14 is a circuit that supplies clock signals and control signals to the image sensor 13, the A / D converter 15, and the D / A converter 21. The timing generator 14 is controlled by the memory control unit 22 and the system control unit 50.

[0016] The image processing unit 20 performs various image processing such as pixel interpolation, color conversion, correction, and resizing on data from the A / D converter 15 or data output from the memory control unit 22. The image processing unit 20 performs predetermined image processing and arithmetic processing using captured image data, and outputs the obtained results to the system control unit 50. The system control unit 50 controls the exposure control unit 40 and the distance measurement control unit 41 based on the results of the image processing and arithmetic processing by the image processing unit 20, thereby performing AF (autofocus) processing, AE (autoexposure) processing, and EF (flash pre-flash) processing.

[0017] The image processing unit 20 performs predetermined calculations using the captured image data, and also performs AWB (auto white balance) processing based on the calculation results. The image processing unit 20 reads images stored in memory 25 and performs compression processing such as lossless compression, or decompression processing. Images to be processed include images in JPEG format, MPEG-4 AVC (Advanced Video Coding) format, HEVC (High Efficiency Video Coding) format, and uncompressed RAW data. The image processing unit 20 writes the processed data to memory 25.

[0018] The image processing unit 20 performs predetermined calculations using captured image data and edits various types of image data. Specifically, the image processing unit 20 can perform cropping, which adjusts the display range and size of an image by hiding unnecessary areas around the image data. The image processing unit 20 can perform resizing, which enlarges or reduces the size of image data and screen display elements. The image processing unit 20 can perform image processing such as color conversion on data that has been compressed or decompressed using lossless compression or decompressed using uncompressed RAW data. Through such image processing, the image processing unit 20 can perform RAW development, which creates image data converted to JPEG format, and video clipping, which clips specified frames from video formats such as MPEG-4, converts them to JPEG format, and saves them.

[0019] The image processing unit 20 performs processing to superimpose an OSD (On-Screen Display) such as a menu and arbitrary characters to be displayed on the display unit 23 together with the display image data onto the display image. The image processing unit 20 can acquire information such as the distance to the subject from the input image data or the output of the image sensor 13 during shooting. The image processing unit 20 can detect the subject present in the image data and detect the subject area. The image processing unit 20 can acquire area information such as the position and size of the subject within the image, information on the tilt of the subject, information on the certainty of the subject, etc.

[0020] The memory control unit 22 controls the A / D converter 15, the timing generator 14, the image processing unit 20, the image display memory 24, the D / A converter 21, and the memory 25. The RAW image data generated through the A / D converter 15 is written to the image display memory 24 or the memory 25 via the image processing unit 20 and the memory control unit 22. Alternatively, the RAW image data generated through the A / D converter 15 is written to the image display memory 24 or the memory 25 via the memory control unit 22 without going through the image processing unit 20. The D / A converter 21 controls the image display memory 24 or the memory 25. The image data for display stored in the memory 24 and the memory 25 is converted into an analog signal and supplied to the display unit 23 .

[0021] The display unit 23 displays the image data and various information for display that have been written to the image display memory 24 and the memory 25. The display unit 220 includes a TFT liquid crystal (Thin Film Transistor LCD) and the like. The display unit 23 can realize an electronic finder function that displays live images by successively displaying captured image data.

[0022] The memory 25 stores the captured still images and moving images. The memory 25 has a storage capacity sufficient to store a predetermined number of still images and a predetermined period of moving images. The memory 25 is also used as a working area for the system control unit 50.

[0023] The exposure control unit 40 controls the shutter 12, which has an aperture function. The exposure control unit 40 has a flash dimming function by working in conjunction with the flash 44. The distance measurement control unit 41 controls the focusing of the photographing lens 11. The zoom control unit 42 controls the zooming of the photographing lens 11. The barrier control unit 43 controls the operation of the barrier 10, which is a protective member. The flash 44 has an AF assist light projection function and a flash dimming function.

[0024] The system control unit 50 is a control unit made up of at least one processor and / or at least one circuit. That is, the system control unit 50 may be a processor, a circuit, or a combination of a processor and a circuit. The system control unit 50 controls the entire digital camera 100. The nonvolatile memory 51 is an electrically erasable and recordable nonvolatile memory. The nonvolatile memory 51 is, for example, an EEPROM (Electrically Erasable Programmable) (registered trademark).

[0025] The shutter button 60 has a first shutter switch 61 and a second shutter switch 62. The first shutter switch 61 (SW1) is turned on when the shutter button 60 is pressed halfway (a shooting preparation instruction) during operation, and outputs a first shutter switch signal SW1. In response to the first shutter switch signal SW1, the system control unit 50 starts shooting preparation processing such as AF processing, AE processing, AWB processing, and EF processing.

[0026] The second shutter switch 62 is turned on when the shutter button 60 is fully pressed (a shooting instruction) and outputs a second shutter switch signal SW2. In response to the second shutter switch signal SW2, the system control unit 50 issues a command to start a series of shooting operations, including exposure, development, and recording. In the exposure process, the system control unit 50 writes a signal read from the image sensor 13 to the memory 25 as RAW data via the A / D converter 15 and the memory control unit 22. In the development process, the system control unit 50 develops the RAW data written to the memory 25 using the results of calculations by the image processing unit 20 and the memory control unit 22, and writes the developed data to the memory 25 as image data. In the recording process, the system control unit 50 reads image data from the memory 25, compresses the image data using the image processing unit 20, stores the compressed image data in the memory 25, and then writes the image data to the external recording medium 91 via the card controller 90.

[0027] The operation unit 63 includes various buttons, a touch panel, etc. For example, the operation unit 63 includes a power button, a menu button, a mode setting switch for setting the shooting mode / playback mode / other special shooting modes, directional keys, a set button, a macro button, etc. The operation unit 63 also includes, for example, a flash setting button, a single shooting / continuous shooting / self-timer switching button, a menu movement + (plus) button, menu movement - (minus) button, a shooting quality selection button, an exposure compensation button, a date / time setting button, etc.

[0028] When recording image data on the external recording medium 91, the metadata generation and analysis unit 70 assigns various metadata, such as Exif (Exchangeable image file format) information, to the image data based on information at the time of shooting. Furthermore, when reading image data recorded on the external recording medium 91, the metadata generation and analysis unit 70 analyzes the metadata assigned to the image data. The metadata includes, for example, various setting information at the time of shooting, image data information related to the image data, and characteristic information of the subject included in the image data. When recording moving image data, the metadata generation and analysis unit 70 can also generate and assign metadata for each frame.

[0029] Power supply 80 is a primary battery such as an alkaline battery or a lithium battery, a secondary battery such as a NiCd battery, a NiMH battery, or a Li battery, an AC adapter, etc. Power supply control unit 81 supplies power from power supply 80 to each unit of digital camera 100.

[0030] The card controller 90 transmits and receives data to and from an external recording medium 91, such as a memory card. The external recording medium 91 is, for example, a memory card, and records images (still images and moving images) captured by the digital camera 100.

[0031] The communication unit 71 has a communication circuit for transmitting and receiving. Specifically, the communication unit 71 may be a wireless communication unit such as Wi-Fi or Bluetooth (registered trademark), or may be a wired communication unit such as Ethernet or USB.

[0032] The audio signal input unit 28 has a microphone terminal to which various microphones can be connected. The built-in microphone connected to the audio signal input unit 28 has a diaphragm that generates an electrical signal in response to the amount of change in air vibration, and has the characteristic that the amount of electricity generated changes depending on the direction of the input air vibration even if the amount of change is the same. The audio signal input unit 28 is capable of accepting input of digital signals. The audio signal input unit 28 is an audio input terminal to which devices such as the built-in microphone of the digital camera 100, an external microphone with a 3.5φ terminal, and accessories can be connected. Accessories are external devices attached to the digital camera 100 via an accessory shoe. The digital camera 100 has multiple audio input terminals.

[0033] The microphone driving circuit 27 drives the audio signal input unit 28 under the control of the system control unit 50. The signal processing circuit 26 performs A / D conversion on the electrical signal, converts the audio information, and performs predetermined signal processing according to the connection type of the audio signal input unit 28. The signal processing circuit 26 can acquire the input level of the audio data to be recorded after signal processing. The signal processing circuit 26 temporarily stores the processed audio data and the input level of the audio data in the memory 25. The data stored in the memory 25 by the signal processing circuit 26 is used for audio output, level meter display, recording processing, etc. The signal processing circuit 26 includes one or more audio output terminals, the number of which is equal to or less than the number of audio input terminals.

[0034] The sound recording preparation process when taking a picture with digital camera 100 will be described using Figure 2. The sound recording preparation process shown in Figure 2 is started, for example, when the user sets digital camera 100 to shooting mode using the mode setting switch on operation unit 63. When digital camera 100 is set to shooting mode, system control unit 50 starts preparation for recording moving pictures including audio and activates microphone drive circuit 27.

[0035] In step S201, the system control unit 50 constructs the signal processing circuit 26 by connecting audio input terminals (hereinafter referred to as input terminals) and audio output terminals (hereinafter referred to as output terminals). In addition, when the connection status of devices to each input terminal changes, the system control unit 50 updates the input terminals connected to the output terminals. Input Terminals and Output Terminals The process of determining the combination of these to construct the signal processing circuit 26 is called automatic input terminal switching. Details of the automatic input / output terminal switching process will be described later with reference to FIG.

[0036] The input terminals that make up the signal processing circuit 26 are audio signal input units 28 to which a built-in microphone, an external microphone, accessories, etc. The audio output terminals that are connected to the input terminals are terminals to which an audio recording channel (recording channel buffer) in the memory 25, an external recording medium 91, built-in speakers, headphones, etc. are connected.

[0037] The audio channels to be recorded are connected to the output terminals. The audio recording channels (audio recording ch) connected to each connection terminal are treated as a set of two channels, such as CH1 / CH2 and CH3 / CH4. One output terminal is connected to CH1 / CH2, and one output terminal is connected to CH3 / CH4.

[0038] The number of output terminals can be set in advance by the user using the operation unit 63. In the automatic input / output terminal switching process, the type of each input terminal and the priority for determining which output terminal each input terminal is to be connected to when devices are connected to multiple input terminals can be set in advance by a program or the like.

[0039] In step S202, the system control unit 50 controls the display content on a selection screen for selecting an input terminal to be set. On the selection screen, the system control unit 50 selectably displays input terminals whose settings can be changed based on the combination (wiring state) of input terminals and output terminals determined in step S201. The user selects an input terminal whose settings he or she wants to change from the input terminals displayed as selectable on the selection screen. The system control unit 50 displays a setting screen corresponding to the input terminal selected by the user. The setting screen displays setting items related to the input terminal selected by the user, allowing the user to make settings related to the selected input terminal without being aware of the wiring state.

[0040] The automatic input / output terminal switching process in step S201 in Fig. 2 will be described in detail using Fig. 3, 4(A), and 4(B). The automatic input / output terminal switching process is started, for example, when the user changes the shooting mode using the mode setting switch on the operation unit 63. The automatic input / output terminal switching process may also be started when the connection status of a device to one of the input terminals changes. A change in the connection status of a device to an input terminal includes when a device is connected to the input terminal and when the connection between the input terminal and the device is released.

[0041] In step S301, the system control unit 50 determines whether the shooting mode is the video mode. If the shooting mode is not the video mode, the process proceeds to step S318. If the shooting mode is not the video mode, that is, if audio recording is not performed, the process proceeds to step S318. In step S318, the system control unit 50 ends the process of FIG. 3 without automatically switching the input / output terminals. That is, no settings related to the input terminals are made. If the shooting mode is the video mode, that is, if audio recording is performed, the process proceeds to step S302.

[0042] In step S302, the system control unit 50 determines whether audio recording is enabled. Even if the shooting mode is video mode, if audio is not added to the video, such as in the case of a time-lapse video, or if audio recording is disabled, audio recording is determined to be disabled.

[0043] If the voice recording is enabled, the process proceeds to step S303. The system control unit 50 executes automatic switching processing of the input / output terminals in steps S303 to S317. On the other hand, if audio recording is disabled, the process proceeds to step S318. In step S318, the system control unit 50 does not automatically switch the input / output terminals, and ends the process of FIG.

[0044] In steps S303 and S309, the system control unit 50 determines whether the output terminal setting by the user matches any of the expected output terminal settings. In the example of Fig. 3, the expected output terminal settings are 2ch recording or 4ch recording.

[0045] In step S303, if the output terminal setting is 2ch recording, the process proceeds to step S304. If the output terminal setting is not 2ch recording, the process proceeds to step S309. In step S309, if the output terminal setting is 4ch recording, the process proceeds to step S310. If the output terminal setting is not 4ch recording, that is, if it does not match the expected output terminal setting, the process proceeds to step S318. In step S318, the system control unit 50 does not automatically switch the input / output terminals, and ends the process of FIG. 3.

[0046] In steps S304 to S308 and steps S310 to S317, the system control unit 50 determines the connection state with the output terminal based on the connection status of devices to the input terminals and the preset priorities of each input terminal. The system control unit 50 electronically connects one of the multiple input terminals to each of one or more output terminals. The determination of the connection state between the input terminals and the output terminals in the automatic input / output terminal switching process of FIG. 3 will be described using FIGS. 4(A) and 4(B).

[0047] 4(A) and 4(B) are diagrams illustrating combinations of input / output terminals according to the connection status of the input terminals in the automatic input / output terminal switching process of FIG. 3. In the examples of FIGS. 4(A) and 4(B), digital camera 100 has three input terminals to which a built-in microphone 401, an external microphone 402, and an accessory 403 are respectively connected. In FIG. 4(A), digital camera 100 is set to 2ch recording 404, and the output terminals are CH1 / CH2. In FIG. 4(B), digital camera 100 is set to 4ch recording 405, and the output terminals are CH1 / CH2 and CH3 / CH4.

[0048] Which of the three input terminals is connected to the output terminals CH1 / CH2 and CH3 / CH4 is determined based on, for example, the priority set for the input terminals. In the example of Figures 4(A) and 4(B), the priority of the input terminals is, in descending order, the input terminal to which the accessory 403 is connected, the input terminal to which the external microphone 402 is connected, and the input terminal to which the built-in microphone 401 is connected. Note that in the example of Figure 3, it is assumed that the priority of the input terminals does not change depending on the device to be connected.

[0049] 4A, when built-in microphone 401 is connected to one of the three input terminals, the input terminal connected to the output terminal connected to CH1 / CH2 (hereinafter referred to as output terminals CH1 / CH2) is the input terminal of built-in microphone 401. When built-in microphone 401, external microphone 402, and accessory 403 are connected to the three input terminals, respectively, the input terminal connected to output terminal CH1 / CH2 is the input terminal of accessory 403, which has the highest priority.

[0050] In FIG. 4B, when the built-in microphone 401 is connected to one of the three input terminals, the input terminals connected to the output terminals CH1 / CH2 and CH3 / CH4 (hereinafter referred to as output terminals CH3 / CH4) are all the input terminals of the built-in microphone 401. When the built-in microphone 401, the external microphone 402, and the accessory 403 are connected to the three input terminals, respectively, the input terminal connected to the output terminals CH1 / CH2 is the input terminal of the accessory 403, which has the highest priority. In this case, the input terminal connected to the output terminals CH3 / CH4 is the input terminal of the accessory 403, which has the highest priority. The input terminal to be selected is the input terminal of the external microphone 402, which has the second highest priority.

[0051] In step S304, the system control unit 50 determines whether an accessory is connected to the input terminal. If an accessory is connected to the input terminal, the process proceeds to step S305. If an accessory is not connected to the input terminal, the process proceeds to step S306.

[0052] In step S305, the system control unit 50 connects the input terminal of the accessory to the output terminals CH1 / CH2. That is, if an accessory is connected to the input terminal with the highest priority, the system control unit 50 connects the input terminal to which the accessory is connected to the output terminals CH1 / CH2.

[0053] In step S306, the system control unit 50 determines whether an external microphone is connected to the input terminal. If an external microphone is connected to the input terminal, the process proceeds to step S307. If an external microphone is not connected to the input terminal, the process proceeds to step S308.

[0054] In step S307, the system control unit 50 connects the input terminal of the external microphone to the output terminals CH1 / CH2. That is, since no accessory is connected to the input terminal with the highest priority and an external microphone is connected to the input terminal with the second highest priority, the system control unit 50 connects the input terminal to which the external microphone is connected to the output terminals CH1 / CH2.

[0055] In step S308, the system control unit 50 connects the input terminal of the built-in microphone to the output terminals CH1 and CH2. That is, since neither an accessory nor an external microphone is connected to an input terminal with a higher priority than the input terminal of the built-in microphone, the system control unit 50 connects the input terminal to which the built-in microphone is connected to the output terminals CH1 and CH2.

[0056] By performing the processes in steps S304 to S308, the system control unit 50 can determine the combination of input and output terminals as shown in Fig. 4(A). When the digital camera 100 is set to 2ch recording 404, the input terminals connected to the output terminals CH1 / CH2 are determined to be one, regardless of the connection status of each input terminal.

[0057] 5 is a diagram illustrating a setting screen when input and output terminals are connected one to one. By determining that only one input terminal is connected to output terminals CH1 / CH2, the user can change the settings related to the input terminal and the settings related to the output terminal to which that input terminal is connected without being aware of the connection state of the input and output terminals.

[0058] Specifically, when the user selects "recording settings" on recording menu screen 501 in Fig. 5, system control unit 50 displays recording settings screen 502. Recording settings screen 502 displays setting items related to the input terminals (wind filter, audio noise reduction) and setting items related to the output terminals (recording mode, recording level) on a single setting screen. Because recording settings screen 502 displays the items to be set, the user can make settings related to the processes and functions executed in signal processing circuit 26 without being aware of the wiring state of the input / output terminals.

[0059] In step S309, the system control unit 50 determines whether the output terminal is set to 4ch recording. If the output terminal is set to 4ch recording, the system control unit 50 determines and connects input terminals for each of the output terminals CH1 / CH2 and CH3 / CH4. If the output terminal is set to 4ch recording, the process proceeds to step S310. If the output terminal is not set to 4ch recording, the process proceeds to step S318.

[0060] In step S318, the system control unit 50 ends the processing of Fig. 3 without automatically switching the input / output terminals. In the example of Fig. 3, the output terminal setting is assumed to be for 2-channel recording or 4-channel recording, but is not limited to this. For example, if there are three output terminals, the system control unit 50 can determine the input terminal to be connected to each output terminal based on the priority of the input terminal.

[0061] In step S310, the system control unit 50 determines whether an accessory is connected to the input terminal. If an accessory is connected to the input terminal, the process proceeds to step S311. If an accessory is not connected to the input terminal, the process proceeds to step S315.

[0062] In step S311, the system control unit 50 connects the input terminal of the accessory to the output terminals CH1 / CH2. That is, if the accessory is connected to the input terminal with the highest priority, the system control unit 50 connects the input terminal to which the accessory is connected to the output terminals CH1 / CH2. After the input terminal of the accessory is connected to the output terminals CH1 / CH2, the system control unit 50 next determines the input terminal to be connected to the output terminals CH3 / CH4.

[0063] In step S312, the system controller 50 determines whether or not an external microphone is connected to the input terminal. If an external microphone is connected to the input terminal, the process proceeds to step S313. If an external microphone is not connected to the input terminal, the process proceeds to step S314.

[0064] In step S313, the system control unit 50 connects the input terminal of the external microphone to the output terminals CH3 / CH4. That is, since the input terminal of the accessory with the highest priority is connected to the output terminals CH1 / CH2 and the external microphone is connected to the input terminal with the second highest priority, the system control unit 50 connects the input terminal to which the external microphone is connected to the output terminals CH3 / CH4.

[0065] In step S314, since the external microphone is not connected to the input terminal, the system controller 50 connects the built-in microphone to the output terminals CH3 and CH4.

[0066] In step S315, the system controller 50 determines whether or not an external microphone is connected to the input terminal. If an external microphone is connected to the input terminal, the process proceeds to step S316. If an external microphone is not connected to the input terminal, the process proceeds to step S317.

[0067] In step S316, the system control unit 50 connects the input terminal of the external microphone to the output terminals CH1 / CH2. That is, since no accessory is connected to the input terminal with the highest priority and an external microphone is connected to the input terminal with the second highest priority, the system control unit 50 connects the input terminal to which the external microphone is connected to the output terminals CH1 / CH2.

[0068] In step S314, the system control unit 50 connects the input terminal of the built-in microphone to the output terminals CH3 / CH4. That is, no accessory is connected to the input terminal with the highest priority, and the input terminal of the external microphone with the second highest priority is connected to the output terminals CH1 / CH2. Therefore, the system control unit 50 connects the input terminal to which the built-in microphone is connected to the output terminals CH3 / CH4.

[0069] In step S317, the system controller 50 connects the input terminal of the built-in microphone to the output terminals CH1 and CH2. In step S314, the system controller 50 also connects the input terminal of the built-in microphone to the output terminals CH3 and CH4.

[0070] By performing the processes in steps S310 to S317, the system control unit 50 can determine the combination of input and output terminals as shown in Fig. 4(B). When the digital camera 100 is set to 4ch recording 405, the input terminals connected to the output terminals CH1 / CH2 and the output terminals CH3 / CH4 are determined to be one each, regardless of the connection status of each input terminal.

[0071] When the output terminals of the digital camera 100 are set to 4ch recording 405, each of the multiple output terminals (CH1 / CH2, CH3 / CH4) is electronically connected to one of the multiple input terminals (built-in microphone, external microphone, accessory input terminal). In this case, the setting items related to the multiple input terminals and multiple output terminals are displayed on the sound recording setting screen 502 in FIG. If all the setting items are displayed on one screen, the setting process becomes complicated. Also, it becomes difficult to secure a sufficient area to display the setting items. Therefore, before transitioning to the sound recording setting screen 502, the digital camera 100 displays a selection screen for selecting the input terminal to be set.

[0072] The selection screen for selecting the input terminal to be set will be described using Fig. 6. The recording menu screen 601 shows the menu before transitioning to the recording setting. When the user selects "recording setting" using the operation unit 63, the system control unit 50 displays the setting target selection screen 602.

[0073] The setting target selection screen 602 displays options for possible input terminals. On the setting target selection screen 602, input terminals that are connected to output terminals and are subject to setting changes are displayed in a different manner from input terminals that are not connected to output terminals and are not subject to setting changes. Input terminals that are connected to output terminals are displayed as selectable, while input terminals that are not connected to output terminals are displayed grayed out. In the example of FIG. 6, "Built-in microphone" and "Accessories" are displayed as selectable, while "External microphone" is displayed grayed out.

[0074] When the user selects "Built-in Microphone" on the setting target selection screen 602, the system control unit 50 displays a recording setting screen 603 for configuring settings related to the processes and functions executed by the signal processing circuit 26. On the recording setting screen 603, the user can configure recording settings specific to the input terminal to which the built-in microphone is connected and recording settings specific to the output terminal connected to the input terminal of the built-in microphone. In this way, the system control unit 50 displays the recording setting screen 603 for changing settings related to the input terminal selected on the setting target selection screen 602 and the output terminal connected to that input terminal.

[0075] 7(A) to 7(F) are diagrams showing examples of selection screens for selecting the input terminal to be set. FIG. 7(A) shows a setting target selection screen 701 corresponding to the combination 406 in FIG. 4(A) in which the output terminals CH1 / CH2 are wired to the input terminal of the built-in microphone. In combination 406, the setting target is the item related to the built-in microphone wired to the output terminal, so the setting target selection screen 701 displays "built-in microphone" as selectable. Furthermore, because an external microphone and accessories are not connected, the displays of "external microphone" and "accessories" are grayed out. Therefore, the user can easily understand that "external microphone" and "accessories" cannot be selected as setting targets on the setting target selection screen 701.

[0076] 7B shows a setting target selection screen 702 corresponding to the combination 407 in FIG. 4A where the output terminals CH1 / CH2 are connected to the input terminal of an external microphone. The setting target selection screen 702 displays "external microphone" as a selectable option, and also displays "built-in microphone" and "accessory " will be grayed out.

[0077] 7(C) shows a setting target selection screen 703 corresponding to the combination 408 in which the output terminals CH1 / CH2 are wired to the input terminal of an accessory in Fig. 4(A). The setting target selection screen 703 displays "accessories" as selectable, with "built-in microphone" and "external microphone" being grayed out.

[0078] 7(A) shows a setting target selection screen 701 corresponding to combination 409 in which output terminals CH1 / CH2 and output terminals CH3 / CH4 are both wired to the input terminals of the built-in microphones in Fig. 4(B). In combination 409, the setting targets are the items related to the built-in microphones wired to the two output terminals, so setting target selection screen 701 displays "Built-in Microphone" as selectable, with "External Microphone" and "Accessories" grayed out.

[0079] 7(D) shows a setting target selection screen 704 corresponding to the combination 410 in which the output terminals CH1 / CH2 are connected to the input terminal of the external microphone and the output terminals CH3 / CH4 are connected to the input terminal of the built-in microphone in FIG. 4(B). The setting target selection screen 704 displays "built-in microphone" and "external microphone" as selectable, with "accessories" being grayed out.

[0080] 7(E) shows a setting target selection screen 705 corresponding to the combination 411 in which the output terminals CH1 / CH2 are connected to the input terminal of an accessory and the output terminals CH3 / CH4 are connected to the input terminal of the built-in microphone in FIG. 4(B). The setting target selection screen 705 displays "built-in microphone" and "accessories" as selectable options, with "external microphone" being grayed out.

[0081] 7(F) shows the setting target selection screen 706 corresponding to the combination 412 in which the output terminals CH1 / CH2 are connected to the input terminal of an accessory and the output terminals CH3 / CH4 are connected to the input terminal of an external microphone in FIG. 4(B). The setting target selection screen 706 displays "external microphone" and "accessories" as selectable options, with "built-in microphone" being grayed out.

[0082] Figures 8(A) to 8(C) are diagrams showing examples of setting screens for input terminals and corresponding output terminals. Figure 8(A) shows a sound recording setting screen 801 that is displayed when the user selects "built-in microphone" on the setting target selection screens 701, 704, and 705. Figure 8(B) shows a sound recording setting screen 802 that is displayed when the user selects "external microphone" on the setting target selection screens 702, 704, and 706. Figure 8(C) shows a sound recording setting screen 803 that is displayed when the user selects "accessories" on the setting target selection screens 703, 705, and 706.

[0083] The recording setting screens 801 to 803 are setting screens for changing settings related to the input terminals selected by the user on the setting target selection screens 701 to 706, and settings related to the output terminals to which the selected input terminals are connected. The recording setting screens 801 to 803 can display the sound pressure levels of the output terminals using level meters 804 corresponding to the output terminals to which the input terminals are connected. The user can adjust the sound pressure levels of the output terminals while checking the level meters 804.

[0084] The recording setting screens 801 to 803 display on a single screen the setting items related to the input terminal selected by the user and the setting items related to the output terminal to which that input terminal is connected, allowing the user to configure recording settings for the input / output terminals without being aware of the wiring status.Items that are not subject to configuration are not displayed, and only items that are subject to configuration are displayed, thereby reducing the display area of ​​the recording setting screens 801 to 803.

[0085] On the setting target selection screens 701 to 706, input terminals connected to output terminals are displayed selectably, and input terminals not connected to output terminals are displayed grayed out, so that the user can easily identify the input terminal to be set. For example, on the sound recording setting screen 801, the sound recording level cannot be set for the sound from the built-in microphone, so the sound recording level item is displayed grayed out. Therefore, the user can easily recognize that the sound recording level cannot be set. After the user sets the various processes and functions on each sound recording setting screen shown in FIG. 8, when the user instructs the settings using the operation unit 63, the setting values ​​for each function set on the sound recording setting screen are reflected in the processing of the audio signal.

[0086] 2. The control process for the input terminal selection screen (setting target selection screens 701 to 706) in step S202 of Fig. 2 will be described in detail with reference to Fig. 9. The control process for the input terminal selection screen is started, for example, when the connection status of a device to any of the input terminals changes. In other words, when the input terminal connected to any of the output terminals is updated due to a change in the device connection status, the system control unit 50 executes the process shown in Fig. 9 to update the input terminals displayed as selectable on the selection screen.

[0087] In step S901, the system controller 50 determines whether the digital camera 100 is set to record audio. The system controller 50 can determine whether to record audio based on, for example, whether the digital camera 100 is in video shooting mode or whether the audio recording setting is on. If the digital camera 100 is set to record audio, the process proceeds to step S902. If the digital camera 100 is set to not record audio, the process proceeds to step S914.

[0088] In steps S902 to S913, the system control unit 50 determines whether or not to display each input terminal as selectable on the input terminal selection screen, and controls the display of the selection screen. Fig. 9 shows an example of processing when the digital camera 100 has three input terminals: a built-in microphone, an external microphone, and an accessory.

[0089] In step S902, the system control unit 50 determines whether the output terminals CH1 / CH2 are connected to the input terminals of the built-in microphones (are connected to the built-in microphones). If the output terminals CH1 / CH2 are connected to the input terminals of the built-in microphones, the process proceeds to step S903. If the output terminals CH1 / CH2 are not connected to the input terminals of the built-in microphones, the process proceeds to step S904. In step S903, the system control unit 50 displays "Built-in microphone" as selectable on the input terminal selection screen.

[0090] In step S904, the system control unit 50 determines whether the output terminals CH3 / CH4 are connected to the input terminals of the built-in microphone (whether they are connected to the built-in microphone). If the output terminals CH3 / CH4 are connected to the input terminals of the built-in microphone, the process proceeds to step S903. If the output terminals CH3 / CH4 are not connected to the input terminals of the built-in microphone, the process proceeds to step S905. In step S903, the system control unit 50 displays the "Built-in Microphone" option as selectable on the input terminal selection screen.

[0091] In step S905, the system control unit 50 grays out the "Built-in Microphone" item on the input terminal selection screen. The system control unit 50 may also hide the "Built-in Microphone" item.

[0092] In step S906, the system control unit 50 determines whether the output terminals CH1 / CH2 are connected to the input terminals of the external microphones. If the output terminals CH1 / CH2 are connected to the input terminals of the external microphones, the process proceeds to step S907. If the output terminals CH1 / CH2 are not connected to the input terminals of the external microphones, The process proceeds to step S908. In step S907, the system control unit 50 displays the item "External Microphone" as selectable on the input terminal selection screen.

[0093] In step S908, the system control unit 50 determines whether the output terminals CH3 / CH4 are connected to the input terminals of the external microphone (whether they are connected to the external microphone). If the output terminals CH3 / CH4 are connected to the input terminals of the external microphone, the process proceeds to step S907. If the output terminals CH3 / CH4 are not connected to the input terminals of the external microphone, the process proceeds to step S909. In step S907, the system control unit 50 displays the "External Microphone" option on the input terminal selection screen so that it can be selected.

[0094] In step S909, the system control unit 50 grays out the "External Microphone" item on the input terminal selection screen. The system control unit 50 may also hide the "External Microphone" item.

[0095] In step S910, the system control unit 50 determines whether the output terminals CH1 / CH2 are connected to the input terminals of the accessory (whether they are connected to the accessory). If the output terminals CH1 / CH2 are connected to the input terminals of the accessory, the process proceeds to step S911. If the output terminals CH1 / CH2 are not connected to the input terminals of the accessory, the process proceeds to step S912. In step S911, the system control unit 50 displays the "Accessories" item as selectable on the input terminal selection screen.

[0096] In step S912, the system control unit 50 determines whether the output terminals CH3 / CH4 are connected to the input terminals of the accessory (whether they are connected to the accessory). If the output terminals CH3 / CH4 are connected to the input terminals of the accessory, the process proceeds to step S911. If the output terminals CH3 / CH4 are not connected to the input terminals of the accessory, the process proceeds to step S913. In step S911, the system control unit 50 displays the "Accessories" item as selectable on the input terminal selection screen.

[0097] In step S913, the system control unit 50 grays out the "Accessories" item on the input terminal selection screen. The system control unit 50 may also hide the "Accessories" item.

[0098] An input terminal that has been updated from a state where it is not connected to an output terminal to a state where it is connected by the processing of steps S902 to S913 is displayed so as to be selectable on the selection screen. Also, an input terminal that has been updated from a state where it is connected to an output terminal to a state where it is not connected is controlled so as not to be selectable on the selection screen (so as to be hidden or grayed out).

[0099] Steps S914 to S916 are processes performed when the digital camera 100 does not record audio. In step S914, the system control unit 50 grays out the "Built-in Microphone" item on the input terminal selection screen. The system control unit 50 may also hide the "Built-in Microphone" item. In step S915, the system control unit 50 grays out the "External Microphone" item on the input terminal selection screen. The system control unit 50 may also hide the "External Microphone" item. In step S916, the system control unit 50 grays out the "Accessories" item on the input terminal selection screen. The system control unit 50 may also hide the "Accessories" item.

[0100] In addition, when the setting related to the input terminal connected to the output terminal is performed in the device connected to the input terminal, the system control unit 50 may perform control so that the input terminal is not selected on the selection screen. For example, in step S910, Even if an input terminal of an accessory is connected to the output terminal 2, if the setting is performed on the device (accessory) side, the "accessory" may be controlled so that it is not selected on the selection screen. Whether or not to control the input terminal connected to the output terminal so that it is not selected is set in advance, for example, based on the type of input terminal or the type of device connected to the input terminal. The system control unit 50 can determine whether or not to control the input terminal connected to the output terminal so that it is not selected, based on the type of input terminal or the type of device connected to the input terminal.

[0101] In the above embodiment, digital camera 100 automatically switches the connection status of the input / output terminals in response to changes in the connection status of the input terminals. Digital camera 100 also displays a setting screen for changing settings related to the input terminals and settings related to the output terminals to which the input terminals are connected. Even if the user does not understand the connection status between the input terminals and the output terminals, the user can easily change the settings related to the input terminals connected to the output terminals.

[0102] The various controls described above as being performed by the system control unit 50 may or may not be performed by a single piece of hardware (e.g., a processor or circuit). The entire device may be controlled by multiple pieces of hardware (e.g., multiple processors, multiple circuits, or a combination of one or more processors and one or more circuits) sharing the processing.

[0103] The above processor is a processor in a broad sense, and includes general-purpose processors and dedicated processors. General-purpose processors include, for example, CPUs (Central Processing Units), MPUs (Micro Processing Units), and DSPs (Digital Signal Processors). Dedicated processors include, for example, GPUs (Graphics Processing Units), ASICs (Application Specific Integrated Circuits), and PLDs (Programmable Logic Devices). Programmable logic devices include, for example, FPGAs (Field Programmable Gate Arrays) and CPLDs (Complex Programmable Logic Devices).

[0104] Although the embodiments of the present invention have been described in detail, the present invention is not limited to these specific embodiments, and various forms within the scope of the gist of the present invention are also included in the present invention. Furthermore, each of the above-described embodiments merely represents one embodiment of the present invention, and each embodiment can be combined as appropriate.

[0105] <Other embodiments> The present invention can also be realized by supplying a program that realizes one or more functions of the above-described embodiments to a system or device via a network or a storage medium, and having one or more processors in the computer of the system or device read and execute the program. It can also be realized by a circuit (e.g., ASIC) that realizes one or more functions.

[0106] The disclosure of this embodiment includes the following configuration, method, program, and medium. (Configuration 1) A plurality of audio input terminals; one or more audio output terminals, the number of which is equal to or less than the plurality of audio input terminals; a connection means for electronically connecting any one of the plurality of audio input terminals to each of the one or more audio output terminals based on a connection status of devices to the plurality of audio input terminals and a predetermined priority of each of the plurality of audio input terminals; Settings relating to an audio input terminal selected by the user from among the audio input terminals connected to the one or more audio output terminals, and the audio output terminal to which the audio input terminal selected by the user is connected a display means for displaying a setting screen for changing the settings related to The display means displays the setting screen in accordance with the state of the connection by the connection means so that the user cannot change the setting items related to the setting items related to the plurality of audio input terminals and the setting items related to the audio output terminal to which the audio input terminal selected by the user is connected. An electronic device characterized by: (Configuration 2) The display means displays, on the setting screen, setting items that the user cannot change in a grayed-out manner. 2. The electronic device according to configuration 1. (Configuration 3) The display means hides setting items that cannot be changed by the user on the setting screen. 2. The electronic device according to configuration 1. (Configuration 4) The connection means updates the audio input terminals connected to the one or more audio output terminals when a connection status of the device to the plurality of audio input terminals changes. 2. The electronic device according to configuration 1. (Configuration 5) The display means displaying a selection screen that displays selectable audio input terminals connected to the one or more audio output terminals from among the plurality of audio input terminals; When the user selects one of the audio input terminals selectably displayed on the selection screen, the setting screen is displayed for changing settings related to the audio input terminal selected by the user and the audio output terminal connected to the audio input terminal selected by the user. 2. The electronic device according to configuration 1. (Configuration 6) When an audio input terminal connected to any one of the one or more audio output terminals is updated, the display means updates the audio input terminals that are selectably displayed on the selection screen. 6. The electronic device according to configuration 5. (Configuration 7) When the audio input terminal connected to any one of the one or more audio output terminals is updated, the display means displays the following on the selection screen: displaying the audio input terminals that have been updated from a state where they are not connected to the one or more audio output terminals to a state where they are connected in a selectable manner; Control is performed so that an audio input terminal that has been updated from a connected state to a disconnected state with the one or more audio output terminals is not selected. 7. The electronic device according to configuration 6. (Configuration 8) When a setting related to an audio input terminal connected to one of the one or more audio output terminals is performed in the device connected to the audio input terminal, the display means controls the selection screen so that the audio input terminal is not selected. 6. The electronic device according to configuration 5. (Configuration 9) The display means displays, on the setting screen, the sound pressure level of the audio output terminal to which the audio input terminal selected by the user is connected. 9. The electronic device according to any one of configurations 1 to 8. (method) A method for controlling an electronic device having a plurality of audio input terminals and one or more audio output terminals, the number of which is equal to or less than the number of the plurality of audio input terminals, comprising: a connecting step of electronically connecting any of the plurality of audio input terminals to each of the one or more audio output terminals based on a connection status of devices to the plurality of audio input terminals and a predetermined priority of each of the plurality of audio input terminals; a display step of displaying a setting screen for changing settings related to an audio input terminal selected by a user from among the audio input terminals connected to the one or more audio output terminals, and settings related to an audio output terminal to which the audio input terminal selected by the user is connected, In the display step, the setting screen is displayed in accordance with the state of the wiring in the connection step so that the user cannot change settings related to setting items that cannot be changed by the user, among setting items related to the plurality of audio input terminals and setting items related to an audio output terminal to which the audio input terminal selected by the user is connected. 1. A method for controlling an electronic device, comprising: (program) A program for causing a computer to function as each means of the electronic device according to any one of configurations 1 to 9. (medium) A computer-readable storage medium storing a program for causing a computer to function as each means of the electronic device according to any one of configurations 1 to 9. [Explanation of symbols]

[0107] 100: Digital camera (electronic device), 50: System control unit, 23: Display unit

Claims

1. A plurality of audio input terminals; one or more audio output terminals, the number of which is equal to or less than the plurality of audio input terminals; a connection means for electronically connecting any one of the plurality of audio input terminals to each of the one or more audio output terminals based on a connection status of devices to the plurality of audio input terminals and a predetermined priority of each of the plurality of audio input terminals; a display means for displaying a setting screen for changing settings relating to an audio input terminal selected by a user from among the audio input terminals connected to the one or more audio output terminals, and settings relating to an audio output terminal to which the audio input terminal selected by the user is connected; The display means displays the setting screen in accordance with the state of the connection by the connection means so that the user cannot change the setting items related to the setting items related to the plurality of audio input terminals and the setting items related to the audio output terminal to which the audio input terminal selected by the user is connected. An electronic device characterized by:

2. The display means displays, on the setting screen, setting items that the user cannot change in a grayed-out manner.

2. The electronic device according to claim 1, wherein the electronic device is a semiconductor device.

3. The display means hides setting items that cannot be changed by the user on the setting screen.

2. The electronic device according to claim 1, wherein the electronic device is a semiconductor device.

4. The connection means updates the audio input terminals connected to the one or more audio output terminals when a connection status of the device to the plurality of audio input terminals changes.

2. The electronic device according to claim 1, wherein the electronic device is a semiconductor device.

5. The display means displaying a selection screen that displays selectable audio input terminals connected to the one or more audio output terminals from among the plurality of audio input terminals; When the user selects one of the audio input terminals selectably displayed on the selection screen, the setting screen is displayed for changing settings related to the audio input terminal selected by the user and the audio output terminal connected to the audio input terminal selected by the user.

2. The electronic device according to claim 1, wherein the electronic device is a semiconductor device.

6. When an audio input terminal connected to one of the one or more audio output terminals is updated, the display means updates the audio input terminals that are selectably displayed on the selection screen.

6. The electronic device according to claim 5,

7. When the audio input terminal connected to any one of the one or more audio output terminals is updated, the display means displays, on the selection screen, displaying the audio input terminals that have been updated from a state where they are not connected to the one or more audio output terminals to a state where they are connected in a selectable manner; Control is performed so that an audio input terminal that has been updated from a connected state to a disconnected state with the one or more audio output terminals is not selected.

7. The electronic device according to claim 6, wherein the electronic device is a semiconductor device.

8. When a setting relating to an audio input terminal connected to one of the one or more audio output terminals is performed in the device connected to the audio input terminal, the display means displays the selected Control the audio input terminal so that it cannot be selected on the screen.

6. The electronic device according to claim 5,

9. The display means displays, on the setting screen, the sound pressure level of the audio output terminal to which the audio input terminal selected by the user is connected.

2. The electronic device according to claim 1, wherein the electronic device is a semiconductor device.

10. A method for controlling an electronic device having a plurality of audio input terminals and one or more audio output terminals the number of which is equal to or less than the number of the plurality of audio input terminals, comprising: a connecting step of electronically connecting any of the plurality of audio input terminals to each of the one or more audio output terminals based on a connection status of devices to the plurality of audio input terminals and a predetermined priority of each of the plurality of audio input terminals; a display step of displaying a setting screen for changing settings related to an audio input terminal selected by a user from among the audio input terminals connected to the one or more audio output terminals, and settings related to an audio output terminal to which the audio input terminal selected by the user is connected, In the display step, the setting screen is displayed in accordance with the state of the wiring in the connection step so that the user cannot change settings related to setting items that the user cannot change, among setting items related to the plurality of audio input terminals and setting items related to an audio output terminal to which the audio input terminal selected by the user is connected.

1. A method for controlling an electronic device, comprising:

11. A program for causing a computer to function as each of the means of the electronic device according to any one of claims 1 to 9.

12. A computer-readable storage medium storing a program for causing a computer to function as each of the means of the electronic device according to any one of claims 1 to 9.

Images