JP2012058704A - Sound recording device, sound recording condition setting method and sound recording condition setting program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate a setting operation for sound recording condition.SOLUTION: An IC recorder includes: first and second directional microphones; a dial for switching directions of directionality of the first and second directional microphones to any one of first to third direction patterns, respectively; a detecting part 71 for detecting the direction pattern; a sound recording part for executing a plurality of kinds of processing on sound collected by the first and second directional microphones and recording the processed sound; a setting part 75 for setting parameters to execute the plurality of kinds of processing by the sound recording part; and an EEPROM (Electrically Erasable and Programmable Read Only Memory) for storing the parameters by associating them to each of the plurality of kinds of processing for the respective first to third direction patterns. The setting part 75 sets the parameters for executing the plurality of kinds of processing associated with a detected direction pattern when the direction pattern is detected by the detecting part 71.

Description

  The present invention relates to a recording apparatus, a recording condition setting method, and a recording condition setting program, and more particularly to a recording apparatus having a plurality of microphones, a recording condition setting method and a recording condition setting program executed by the recording apparatus.

  Audio recording / playback with a directional microphone and an omnidirectional microphone that can be switched between recording conditions for recording audio signals from directional microphones and recording conditions for recording audio signals from omnidirectional microphones An apparatus is described in JP-A-2004-254074 (Patent Document 1).

However, switching of recording conditions requires the user to determine the sound source from which the sound is generated and to determine which of the directional microphone and the omnidirectional microphone is suitable for recording the audio signal. . Conventionally, in order to switch recording conditions, a screen for switching recording conditions arranged in a lower layer from a menu screen or the like is displayed and the recording conditions must be switched. There was a problem that the operation of was complicated.
JP 2004-254074 A

  The present invention has been made to solve the above-described problems, and one of the objects of the present invention is to provide a recording apparatus that facilitates an operation for setting recording conditions.

  Another object of the present invention is to provide a recording condition setting method that facilitates an operation for setting recording conditions.

  Another object of the present invention is to provide a recording condition setting program that facilitates an operation for setting a recording condition.

  In order to achieve the above-described object, according to one aspect of the present invention, a recording apparatus has a directivity, a plurality of microphones that output collected sound, and a direction in which each of the plurality of microphones is directed in advance. Switching means for switching to any one of a plurality of defined direction patterns; Detection means for detecting a direction pattern switched by the switching means among the plurality of direction patterns; and multiple types of processing for sounds collected by the plurality of microphones Recording means for recording the processed sound, setting means for setting parameters for the recording means to execute a plurality of types of processing, and a plurality of types of recording means for each of the plurality of direction patterns. Storage means for associating and storing parameters used for executing processing for each of a plurality of types of processing, and the setting means is switched by the detecting means. When the direction pattern has been switched by the step is detected, it sets the parameters for performing a plurality of types of processing associated with the direction pattern.

  According to this aspect, when the direction in which each of the plurality of microphones is directed is switched to one of a plurality of predetermined direction patterns, the switched direction pattern is detected, and a plurality of sounds collected by the plurality of microphones are detected. Parameters used for executing the types of processing are set as parameters for executing a plurality of types of processing associated with the detected direction pattern. For this reason, the user can set parameters used to execute a plurality of types of processing on the sound collected by the plurality of microphones only by switching the direction in which each of the plurality of microphones is directed to one of the plurality of direction patterns. Can be set. As a result, it is possible to provide a recording apparatus that facilitates an operation for setting recording conditions.

  Preferably, the setting means includes a switching instruction receiving means for receiving a switching instruction by a user when the direction pattern switched by the switching means is detected by the detecting means, and is detected on the condition that the switching instruction is received. Set as a parameter to execute multiple types of processing associated with the direction pattern.

  According to this aspect, when a switched direction pattern is detected, parameters for executing a plurality of types of processing associated with the detected direction pattern are provided on the condition that a switching instruction from the user is accepted. Is set. For this reason, if the switching instruction is not accepted after switching the direction pattern, it is not set as a parameter for executing a plurality of types of processing associated with the direction pattern detected by the correspondence table. Only the direction of the direction can be switched.

  Preferably, the storage means stores, for each of a plurality of scenes equal to or more than the number of direction patterns, the parameters used by the recording means for executing a plurality of types of processing in association with each of the plurality of types of processing Each of the direction patterns is associated with any one of a plurality of scenes, and further comprises selection accepting means for accepting one selection from at least one scene by the user, and the setting means is selected by the selection accepting means. In response to accepting the selection by, the parameter is set to a parameter for executing a plurality of types of processing associated with the scene selected by the user among the plurality of scenes.

  According to this aspect, in response to accepting one selection from at least one scene by the user, to execute a plurality of types of processing associated with the scene selected by the user among the plurality of scenes Parameter. For this reason, if the user performs an operation of selecting one of a plurality of scenes, a plurality of types of processing are executed on the sound collected by the plurality of microphones regardless of the direction in which each of the plurality of microphones is directed. The parameters used for this purpose can be set.

  Preferably, the information processing apparatus further includes a change instruction receiving unit that receives a change instruction from a user, and a changing unit that changes parameters for executing a plurality of types of processing associated with each of a plurality of scenes according to the received change instruction. .

  According to this aspect, for each of a plurality of scenes, parameters associated with a plurality of types of processing can be changed to values that suit the user's preference.

  Preferably, the plurality of types of processing include microphone sensitivity adjustment processing for adjusting microphone sensitivity, auto level control processing for adjusting the input level to an appropriate level, low frequency correction processing for correcting low frequency sound, and low frequency processing. Low cut filter processing to cut the sound, encoding processing to encode the audio signal, recording peak limiter processing to make the volume level below a predetermined value, self-timer processing to start recording at a predetermined time, and silence part At least one selected from the VAS processes to be cut is included.

  According to another aspect of the present invention, a recording condition setting method has a directivity, a plurality of microphones that output collected sound, and a direction in which each of the plurality of microphones is directed to a plurality of predetermined directions. A recording condition setting method executed by a recording device comprising: a switching means for switching to any one of patterns; a step of detecting a direction pattern switched by the switching means among a plurality of direction patterns; and a plurality of microphones Performing a plurality of types of processing on the sound collected by the step, storing the processed sound in the storage means, setting parameters for performing the plurality of types of processing in the recording step, and a plurality of steps For each direction pattern, the parameters used to execute multiple types of processing in the recording step are used for multiple types of processing. And the step of setting, when the direction pattern switched by the switching means is detected in the detecting step, a plurality of types of processing associated with the detected direction pattern are performed. And setting to parameters for execution.

  According to this aspect, it is possible to provide a recording condition setting method that facilitates an operation for setting a recording condition.

  According to still another aspect of the present invention, the recording condition setting program has a plurality of microphones having directivity and outputting collected sounds, and a plurality of predetermined directions in which each of the plurality of microphones is directed. A recording condition setting program executed by a computer for controlling a recording apparatus comprising a switching means for switching to any one of the direction patterns, and detecting a direction pattern switched by the switching means among a plurality of direction patterns A plurality of types of processing is performed on the sound collected by the plurality of microphones, and parameters for executing the plurality of types of processing are set in the step of storing the processed sound in the storage unit and the step of recording A plurality of types of processing are executed in the recording step for each of the step and the plurality of direction patterns. The step of causing the computer to execute and set the step of associating and storing the parameters used for each of the plurality of types of processing when the direction pattern switched by the switching means is detected in the detecting step. And a step of setting parameters for executing a plurality of types of processing associated with.

  According to this aspect, it is possible to provide a recording condition setting program that facilitates an operation for setting recording conditions.

It is a top view of an IC recorder. It is a figure which shows an example of a 1st direction pattern. It is a figure which shows an example of a 2nd direction pattern. It is a figure which shows an example of a 3rd direction pattern. It is a functional block diagram which shows the outline | summary of the hardware constitutions of IC recorder. It is a functional block diagram which shows the outline | summary of the function of CPU with the data memorize | stored in EEPROM. It is a figure which shows an example of a basic screen. It is a figure which shows an example of a scene selection screen. It is a figure which shows an example of a correspondence table. It is a figure which shows an example of a direction pattern table. It is a figure which shows an example of a 1st recommended scene determination screen. It is a figure which shows an example of the 2nd recommended scene determination screen. It is a figure which shows an example of a 3rd recommended scene determination screen. It is a flowchart which shows an example of the flow of a recording process. It is a flowchart which shows an example of the flow of a 1st recording setting process. It is a flowchart which shows an example of the flow of a parameter setting process. It is a flowchart which shows an example of the flow of a 2nd recording setting process.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

  FIG. 1 is a plan view of the IC recorder. Referring to FIG. 1, IC recorder 1 includes a sound collection unit 5, an LCD (Liquid Crystal Display) 65, and an operation unit 7. In addition, the dotted line and the arrow in a figure are attached | subjected for description, and do not actually exist. The LCD 65 is provided in front of the IC recorder 1 and displays an image. If an image can be displayed, a display such as an organic ELD (Electroluminescence Display) may be used instead of the LCD 65.

  The operation unit 7 includes a plurality of hard keys arranged in front of the IC recorder 1, and each of the plurality of hard keys is normally OFF, but is turned ON when pressed by the user. The plurality of hard keys include a first function button 9, a second function button 10, a stop button 13, a recording button 15, a control button 17, a decision button 19, a list button 21, and a menu button 23. Including.

  Each of the first function button 9 and the second function button 10 corresponds to a soft key displayed at a predetermined position on the LCD 65. When the user presses the first function button 9, the operation unit 7 outputs a signal indicating that the soft key corresponding to the first function button 9 has been pressed. When the user presses the second function button 10, a signal indicating that the soft key corresponding to the second function button 10 has been pressed is output. Therefore, a plurality of types of soft keys can be displayed on the LCD 65.

  The recording button 15 is a button to which an operation for instructing the start of recording is assigned. The decision button 19 is a button to which an operation for instructing sound reproduction is assigned. The stop button 13 is a button to which an operation for supporting the stop of sound reproduction is assigned. The list button 21 is a button to which an operation for instructing display of a list of recorded sound data names and / or a list of names of folders storing sound data is assigned. The menu button 23 is a button to which an operation for instructing display of a menu screen is assigned. The menu screen is a screen for displaying a plurality of setting screens for setting setting values for executing a plurality of functions of the IC recorder 1, and a list of names of the plurality of functions is selectably displayed. It is a screen. The plurality of functions include a recording function, a playback function, and a file editing function.

  The control button 17 includes an upper button 17A, a lower button 17B, a right button 17C, and a left button 17D. The upper button 17A, the lower button 17B, the right button 17C, and the left button 17D accept an operation for selecting an option displayed on the LCD 65, an operation for switching a screen displayed on the LCD 65, and the like.

  The sound collection unit 5 includes a dial 25, a first directional microphone 45, a second directional microphone 47, and an omnidirectional microphone 49. The dial 25 is attached to the sound collection unit 5 so as to be rotatable about a rotation axis perpendicular to the display surface of the LCD 65. The dial 25 has a protruding portion 26 that protrudes outside the sound collecting portion 5. Since the protruding portion 26 protrudes outside the sound collecting portion 5, the user can touch the protruding portion 26, and can further rotate the dial 25 by applying a force to the protruding portion 26. In FIG. 1, a part of the dial 25 protrudes to the outside of the sound collection unit 5, but it is sufficient that at least the protrusion 26 protrudes to the outside of the sound collection unit 5.

  As the dial 25 rotates, the position of the dial 25 changes. Here, three predetermined positions among positions that can be taken by the dial 25 are defined as a first position, a second position, and a third position. In FIG. 1, the protrusion 26 when the dial 25 is in the first position is indicated by a solid line, the protrusion 26A when the dial 25 is in the second position is indicated by a dotted line, and when the dial 25 is in the third position The protruding portion 26B is indicated by a dotted line. The second position is a position where the dial 25 is rotated by a predetermined angle counterclockwise around the rotation axis with the first position as a starting point. The third position is a position where the dial 25 is rotated by a predetermined angle clockwise from the first position around the rotation axis. The predetermined angle is smaller than 180 degrees.

  The first directional microphone 45 is attached to the sound collection unit 5 so as to be rotatable such that its directional direction (hereinafter referred to as “first directional direction”) is perpendicular to the rotation shaft 45A. The second directional microphone 47 is attached to the sound collection unit 5 so as to be rotatable such that the directional direction (hereinafter referred to as “second directional direction”) is perpendicular to the rotation shaft 47A. The rotation axes 45A and 47A of the first directional microphone 45 and the second directional microphone 47 are parallel to the rotation axis of the dial 25. The first directional microphone 45 and the second directional microphone 47 are respectively The dial 25 is mechanically connected by, for example, a gear or the like, and rotates in conjunction with the rotation of the dial 25.

  Therefore, the direction in which each of the first directional microphone 45 and the second directional microphone 47 is directed changes in conjunction with the rotation of the dial 25, and the first directional direction and the second directional direction with respect to the position of the dial 25 are each 1 Determined to be one. Here, the combination of the first directivity direction and the second directivity direction is referred to as a direction pattern, the direction pattern for the first position of the dial 25 is the first direction pattern, and the direction pattern for the second position of the dial 25 is the second direction pattern. A direction pattern with respect to the third position of the dial 25 is referred to as a third direction pattern.

  FIG. 2 is a diagram illustrating an example of the first direction pattern. Referring to FIG. 2, the first directional microphone 45 can rotate around a rotation axis 45A, and the second directional microphone 47 can rotate around a rotation axis 47A. An arrow indicated by a dotted line and directed to the first directional microphone 45 indicates the first directional direction. An arrow indicated by a dotted line and directed to the second directional microphone 47 indicates the second directional direction. In the first direction pattern, the first directivity direction and the second directivity direction are parallel. Therefore, in the first direction pattern, each of the first directional microphone 45 and the second directional microphone 47 collects sound generated in the same direction, for example, when a person speaks in front of a plurality of people. It is suitable for collecting sounds in a predetermined direction.

  FIG. 3 is a diagram illustrating an example of the second direction pattern. Referring to FIG. 3, an arrow indicated by a dotted line toward the first directional microphone 45 indicates the first directional direction, and an arrow indicated by a dotted line toward the second directional microphone 47 indicates the second directional direction. The second direction pattern is a direction in which the first directivity direction is rotated by a predetermined angle counterclockwise from the first directivity direction in the first direction pattern, and the second directivity direction is clockwise from the second directivity direction in the first direction pattern. Is a direction rotated by a predetermined angle. Therefore, in the second direction pattern, the first directional microphone 45 collects sound generated on the right side from the upper side in the figure, and the second directional microphone 47 generates sound on the left side from the upper side in the figure. Collect sound. For this reason, for example, when collecting sounds generated on the right or left side of a predetermined direction such as forward, for example, when collecting sounds generated in the left and right directions, such as when a plurality of people present on the left and right are talking. Is suitable.

  FIG. 4 is a diagram illustrating an example of the third direction pattern. Referring to FIG. 4, an arrow indicated by a dotted line toward the first directional microphone 45 indicates the first directional direction, and an arrow indicated by a dotted line toward the second directional microphone 47 indicates the second directional direction. The third direction pattern is a direction in which the first directivity direction is rotated by a predetermined angle clockwise from the first directivity direction in the first direction pattern, and the second directivity direction is counterclockwise from the second directivity direction in the first direction pattern. Is a direction rotated by a predetermined angle. Therefore, in the third direction pattern, the first directional microphone 45 collects sound generated on the left side from the upper side in the figure, and the second directional microphone 47 collects sound generated on the right side from the upper side in the figure. Sound. In the third direction pattern, the direction of the sound collected by the first directional microphone 45 and the second directional microphone 47 in the second direction pattern is reversed. Therefore, the codec described later is recorded so that the audio signal output from the first directional microphone 45 is recorded as the sound of the left channel Lch and the audio signal output from the second directional microphone 47 is recorded as the sound of the right channel Rch. At 31, internal processing is performed. Further, unlike the second direction pattern, the third direction pattern is partially a range of a sound source that can be collected by the first directional microphone 45 and a range of a sound source that can be collected by the second directional microphone 47. Overlap. Therefore, it is possible to improve the localization feeling of the sound of the sound source in the portion where the ranges of the sound sources overlap. Therefore, the third direction pattern is used when, for example, vocals are collected with a sense of localization in addition to collecting sounds generated on the right or left side of a predetermined direction such as the front. This is suitable for collecting sounds in the left and right directions and from the front, such as when performing in a band while standing in the center.

  In the present embodiment, the rotation axis 45A of the first directional microphone 45 passes through the first directional microphone 45, and the rotation axis 47A of the second directional microphone 47 passes through the second directional microphone 47. As shown, if the rotation axis 45A of the first directional microphone 45 and the rotation axis 47A of the second directional microphone 47 are parallel to each other, it is necessary to pass through the first directional microphone 45 and the second directional microphone 47. Absent.

  FIG. 5 is a functional block diagram showing an outline of the hardware configuration of the IC recorder. Referring to FIG. 5, the IC recorder 1 includes a central processing unit (CPU) 11 for controlling the entire IC recorder 1, a codec 31 and an encoder / decoder 43 each connected to the CPU 11 via a bus 69. A RAM (Random Access Memory) 51, a speaker 53, a headphone terminal 55, an external memory controller 57, an EEPROM (Electrically Erasable and Programmable Read Only Memory) 59, a serial interface (I / F) 61, and a ROM 63. And an LCD 65 and a position detection sensor 67.

  The RAM 51 is used as a work area for the CPU 11. The ROM 63 stores a program executed by the CPU 11. The EEPROM 59 is an internal memory for storing a compressed audio signal and the like in a nonvolatile manner. The external memory controller 57 is connected to a memory card 57A. The CPU 11 can access the memory card 57A connected thereto via the external memory controller 57.

  The serial interface 61 is connected to a device capable of serial communication. The CPU 11 can communicate with a device connected thereto via the serial interface 61. The headphone terminal 55 is connected to headphones or earphones, and outputs analog audio signals to them. The speaker 53 receives an analog audio signal and outputs audio.

  The codec 31 is connected to a first directional microphone 45, a second directional microphone 47, and an omnidirectional microphone 49. The codec 31 is input from an analog audio signal input from the first directional microphone 45 and the second directional microphone 47 or from the first directional microphone 45, the second directional microphone 47 and the omnidirectional microphone 49. After the analog audio signal is converted into a digital signal and subjected to predetermined signal processing, the audio signal after the digital processing is output to the CPU 11. The audio signal after the digital processing is a left and right channel audio signal.

  The codec 31 includes an auto level control (ALC) unit 33, a sensitivity adjustment unit 35, a low cut filter unit 37, a low frequency correction unit 39, and a recording peak limiter unit 41 in order to process a digital signal.

  The ALC unit 33 executes ALC processing for automatically adjusting the input level of the audio signal to be processed based on an instruction from the CPU 11. For example, the ALC unit 33 adjusts the input level of the high sound range and the low sound range. Specifically, when an instruction to enable auto level control is input from the CPU 11, the ALC unit 33 adjusts the input level of the audio signal to be processed and receives an instruction to disable auto level control. Then, the input level of the audio signal to be processed is not adjusted.

  The sensitivity adjustment unit 35 adjusts the sensitivity of each of the first directional microphone 45, the second directional microphone 47, and the omnidirectional microphone 49 to either high sensitivity or low sensitivity based on an instruction from the CPU 11. Execute the adjustment process. Specifically, when an instruction to increase sensitivity is input from the CPU 11, the sensitivity adjustment unit 35 increases the sensitivity of each of the first directional microphone 45, the second directional microphone 47, and the omnidirectional microphone 49. When an instruction to reduce sensitivity is input, the sensitivity of each of the first directional microphone 45, the second directional microphone 47, and the omnidirectional microphone 49 is decreased.

  Based on an instruction from the CPU 11, the low cut filter unit 37 executes a low cut filter process for cutting a low-band sound of the audio signal to be processed. Specifically, when an instruction to enable the low cut filter is input from the CPU 11, the low cut filter unit 37 receives an instruction to cut the low-band sound of the audio signal to be processed and disable the low cut filter. If so, the low frequency band of the audio signal to be processed is not cut.

  Based on an instruction from the CPU 11, the low frequency correction unit 39 executes a low frequency correction process for correcting a low frequency part of the audio band of the audio signal to be processed. Specifically, when an instruction to enable low frequency correction is input from the CPU 11, the low frequency correction unit 39 corrects the low frequency part of the audio signal to be processed, but invalidates the low frequency correction. When the instruction is input, the low frequency part of the audio signal to be processed is not corrected. When the low-frequency correction unit 39 executes the low-frequency correction processing, the low-frequency part of the audio signal output from each of the first directional microphone 45 and the second directional microphone 47 is output from the omnidirectional microphone 49. The low frequency is corrected by interpolating with the audio signal. This is because, as a characteristic of the first directional microphone 45 and the second directional microphone 47, the sensitivity of the low frequency part is lower than that of the other band part. The low frequency correcting unit 39 outputs only the audio signal output from the first directional microphone 45 and the second directional microphone 47 when the low frequency correcting process is not executed.

  The recording peak limiter 41 executes a recording peak limiter process for setting the volume level of the audio signal to be processed to a predetermined value or less based on an instruction from the CPU 11. Specifically, when an instruction to enable the recording peak limiter is input from the CPU 11, the recording peak limiter unit 41 sets the volume level of the audio signal to be processed to a predetermined value or less. When an instruction to invalidate is input, the volume level of the audio signal to be processed is not reduced below a predetermined value.

  The encoder / decoder 43 is controlled by the CPU 11 and executes an encoding process for encoding the audio signal output from the codec 31. The encoder / decoder 43 is controlled by the CPU 11 and executes a decoding process for decoding the encoded audio signal.

  Audio signals output from the first directional microphone 45, the second directional microphone 47, and the omnidirectional microphone 49 are converted into digital signals by the codec 31. The CPU 11 causes the encoder / decoder 43 to encode the audio signal output from the codec 31, and stores the encoded audio signal in the EEPROM 59 or the memory card 57A connected to the external memory controller 57. Further, the CPU 11 reads out an audio signal stored in the EEPROM 59 or the memory card 57A connected to the external memory controller 57, causes the encoder / decoder 43 to decode it, and converts the decoded audio signal into an analog signal by the codec 31. The analog audio signal is output to the headphone connected to the speaker 53 or the headphone terminal 55.

  The position detection sensor 67 detects the position of the dial 25 and outputs the detected position to the CPU 11. The position detection sensor 67 is, for example, a proximity switch, and detects whether the dial 25 is in the first position, the second position, or the third position. Specifically, the position detection sensor 67 outputs a first detection signal to the CPU 11 when detecting that the dial 25 is located at the first position, and a second detection signal when the dial 25 is located at the second position. Is output to the CPU 11, and when the dial 25 is located at the third position, a third detection signal is output to the CPU 11. The position detection sensor 67 may be an encoder.

  In this embodiment, an example in which the CPU 11 executes the program stored in the ROM 63 will be described. However, the program stored in the EEPROM 59 or the memory card 57A connected to the external memory controller 57 is executed. Anyway.

  FIG. 6 is a functional block diagram showing an outline of CPU functions together with data stored in the EEPROM. The functions shown in FIG. 6 are formed in the CPU 11 when the CPU 11 executes a program stored in the ROM 59, the EEPROM 59, or the memory card 57A. Referring to FIG. 6, the CPU 11 detects a direction pattern, a selection unit 73 that receives a scene selection by a user, a setting unit 75 that sets recording conditions, a recording control unit 79, and a change. An instruction receiving unit 107, a changing unit 109, a VAS (Voice Active System) unit 101, and a self-timer unit 103 are included.

  The VAS unit 101 is controlled by a VAS control unit 83, which will be described later, and executes a VAS process that cuts a silent portion of the audio signal to be processed. The VAS unit 101 executes the VAS process when an instruction to enable the VAS process is input from the VAS control unit 83, but does not execute the VAS process when an instruction to disable the VAS process is input.

  The self-timer unit 103 is controlled by a self-timer control unit 85, which will be described later, and executes self-timer processing for starting recording at a predetermined time after the user presses the recording button 15 to prepare for recording. The self-timer unit 103 executes the self-timer process when an instruction to enable the self-timer process is input from the self-timer control unit 85. When the instruction to disable the self-timer process is input, the self-timer unit 103 Do not execute processing.

  The detection unit 71 detects switching of the direction pattern based on the output of the position detection sensor 67. As described above, when the user rotates the dial 25, the first directivity direction and the second directivity direction change in conjunction with the rotation of the dial 25, and the first direction pattern, the second direction pattern, and the third direction pattern. Switch to one of the following. The first direction pattern corresponds to the state where the dial 25 is in the first position, the second direction pattern corresponds to the state where the dial 25 is in the second position, and the third direction pattern is the state where the dial 25 is in the third position. Corresponding to Therefore, when the output of the position detection sensor 67 changes to the first detection signal, the detection unit 71 detects the first direction pattern and outputs a first switching signal indicating that the first direction pattern has been switched to the setting unit 75. Output to. When the output of the position detection sensor 67 changes to the second detection signal, the detection unit 71 detects the second direction pattern, and outputs a second switching signal indicating that the second direction pattern has been switched to the setting unit 75. . When the output of the position detection sensor 67 changes to the third detection signal, the detection unit 71 detects the third direction pattern, and outputs a third switching signal indicating that switching to the third direction pattern is performed to the setting unit 75. .

  The selection receiving unit 73 displays a basic screen on the LCD 65 and receives a scene selection instruction. FIG. 7 is a diagram illustrating an example of a basic screen. Referring to FIG. 7, basic screen 200 is a screen that is first displayed on LCD 65 when the power is turned on. The basic screen 200 includes an area 203 for displaying a part of set parameters and a scene button 201. The scene button 201 corresponds to the first function button 9. Area 203 includes an icon 205 assigned to the selected scene. Here, the icon 205 is the same as the icon 231 (see FIG. 8C) assigned to the scene with the scene name “music”, which indicates that the scene with the scene name “music” is selected. For this reason, the user can recognize the selected scene by looking at the icon 205 in the basic screen 200. Further, as shown in FIG. 1, since the first directional microphone 45 and the second directional microphone 47 are arranged on the upper side of the LCD 65, the user can display the basic screen 200 displayed on the LCD 65 and the first directional microphone. The microphone 45 and the second directional microphone 47 can be viewed at the same time. For this reason, the direction pattern of the first directional microphone 45 and the second directional microphone 47 and the set parameters can be confirmed at a time.

  Returning to FIG. 6, when the user presses the first function button 9 while the basic screen 200 is displayed on the LCD 65, the selection receiving unit 73 receives a scene display instruction and corresponds to each of the four scenes 4. One scene selection screen is sequentially displayed on the LCD 65. Three of the four scenes include a “lecture” scene, a “conference” scene, and a “music” scene. The “lecture” scene is a scene in which audio from the front is recorded, such as when a person speaks in front of a plurality of people. The “conference” scene is a scene in which a plurality of people talk and record sound from all directions. The “music” scene is a scene in which music performances and animal voices are recorded with high sound quality. The other one of the four scenes is a scene created by a user's preference and is a “favorite” scene. In this embodiment, an example of four scenes is shown, but the number of scenes is not limited to this, and the number of favorite scenes may be increased to five or more by increasing the number of favorite scenes. It may be less than one.

  FIG. 8 is a diagram illustrating an example of a scene selection screen. FIG. 8A shows a scene selection screen corresponding to the “lecture” scene. Referring to FIG. 8A, the scene selection screen 210 is assigned to a character string “Lecture”, a picture showing a lecture that a person speaks in front of a plurality of scenes, and a scene with a scene name “Lecture”. The icon 211 is included. FIG. 8B is a diagram showing a scene selection screen corresponding to the “conference” scene. Referring to FIG. 8B, the scene selection screen 220 displays a character string “conference”, a picture showing a state of the conference where two or more people talk, and an icon assigned to the scene with the scene name “conference”. 221. FIG. 8C is a diagram showing a scene selection screen corresponding to the “music” scene. Referring to FIG. 8C, the scene selection screen 230 includes a character string “music”, a picture representing the state of music performance, and an icon 231 assigned to the scene with the scene name “music”. Including. FIG. 8D shows a scene selection screen corresponding to the “favorite” scene. Referring to FIG. 8D, the scene selection screen 240 displays a character string “favorite”, a picture assigned to the scene with the scene name “favorite”, and an icon assigned to the scene with the scene name “favorite”. 241. One of the four scene selection screens 210, 220, 230, 240 is displayed on the LCD 65, and when the user presses the right button 17C or the left button 17D, the scene selection screen displayed on the LCD 65 is switched in order.

  When the user operates the control button 17 to sequentially switch the scene selection screen and presses the determination button 19, the selection receiving unit 73 displays the scene displayed when the determination button 19 is pressed among the four scene selection screens. A thorn selection instruction for selecting a scene corresponding to the selection screen is received. Upon receiving a scene selection instruction, the selection receiving unit 73 sets a scene name for identifying a scene corresponding to the scene selection screen displayed when the decision button 19 is pressed among the four scene selection screens. 75 and the change instruction receiving unit 107.

  The setting unit 75 receives one of the first to third switching signals from the detection unit 71 and the scene name from the selection receiving unit 73. When a scene name is input from the selection accepting unit 73, the setting unit 75 has a plurality of processes respectively corresponding to a plurality of types of processes predetermined for the scene specified by the scene name by the correspondence table stored in the EEPROM 59. Are set as a plurality of parameters for executing a plurality of types of processing. A plurality of parameters for executing a plurality of types of processing are recording conditions. The plurality of types of processing include encoding processing executed by the encoder / decoder 43, ALC processing executed by the ALC unit 33, microphone sensitivity adjustment processing executed by the sensitivity adjustment unit 35, and low cut filter executed by the low cut filter unit 37. Processing, low-frequency correction processing executed by the low-frequency correction unit 39, recording peak limiter processing executed by the recording peak limiter unit 41, VAS processing executed by the VAS unit 101, and self-timer executed by the self-timer unit 103 Processing.

  FIG. 9 is a diagram illustrating an example of the correspondence table. Referring to FIG. 9, correspondence table 111 includes four correspondence records respectively corresponding to four scenes, and associates scene names with a plurality of parameters for executing a plurality of types of processing. Corresponding records include scene items, compression encoding items, microphone sensitivity items, ALC items, low frequency correction items, low cut filter items, recording peak limiter items, and self-timer items. And items of VAS. In the scene item, one of scene names “lecture”, “conference”, “music”, and “favorite” corresponding to each of the four scenes is set. Here, in the correspondence table 111, only the “favorite” scene can be set by the user. However, in the same way as the “favorite” scene, the user can execute a plurality of processes for executing a plurality of types of processing. Two or more scenes in which parameters can be set may be provided. In this case, the correspondence table 111 includes five or more correspondence records.

  In the item of compression encoding of the corresponding record, any of 16 bits, 44 kHz / 48 kHz / 320 kbps / 192 kbps / 64 kbps / 32 kbps indicating the compression rate is set as a parameter used for executing the encoding process. In the microphone sensitivity item, either high or low indicating the microphone sensitivity is set as a parameter used for executing the microphone sensitivity adjustment processing. In the ALC item, one of ON and OFF indicating whether or not to execute the ALC process is set as a parameter used for executing the ALC process. In the low-frequency correction item, either ON or OFF indicating whether or not to execute the low-frequency correction processing is set as a parameter used for executing the low-frequency correction processing. In the item of the low cut filter, either ON or OFF indicating whether or not to execute the low cut filter process is set as a parameter used for executing the low cut filter process. In the recording peak limiter item, either ON or OFF indicating whether or not to execute the recording peak limiter process is set as a parameter used for executing the recording peak limiter process. In the self-timer item, either ON or OFF indicating whether to execute the self-timer process is set as a parameter used to execute the self-timer process. In the VAS item, either ON or OFF indicating whether or not to execute the VAS process is set as a parameter used to execute the VAS process.

  For example, in a corresponding record in which “Lecture” is set in the scene item, the parameter “192 kbps” is set in the compression encoding item, the parameter “high” is set in the microphone sensitivity item, and the parameter “ ON ”is set, the parameter“ ON ”is set in the low frequency correction item, the parameter“ ON ”is set in the low cut filter item, the parameter“ ON ”is set in the recording peak limiter item, and the self-timer The parameter “OFF” is set in the item, and the parameter “OFF” is set in the VAS item.

  Returning to FIG. 6, when the scene name input from the selection reception unit 73 is input, the setting unit 75 selects the selection reception unit from among the four correspondence records included in the correspondence table 111 stored in the EEPROM 59. The corresponding record in which the scene name input from 73 is set as the item of the scene is extracted. The setting unit 75 stores a plurality of parameters respectively corresponding to a plurality of types of processing included in the extracted corresponding record in the EEPROM 59 as recording conditions for executing the plurality of types of processing. Specifically, parameters used to execute the encoding process, parameters used to execute the microphone sensitivity adjustment process, parameters used to execute the ALC process, and low-frequency correction process Parameters used, parameters used to execute low cut filter processing, parameters used to execute recording peak limiter processing, parameters used to execute self-timer processing, used to execute VAS processing The parameters are stored in the EEPROM 59 as recording conditions. However, if a plurality of parameters are already stored as recording conditions in the EEPROM 59, the parameters stored as recording conditions are overwritten and stored.

  Setting unit 75 includes a switching instruction receiving unit 77. When any one of the first to third switching signals is input from the detection unit 71, the switching instruction receiving unit 77 receives a switching instruction for switching the recording conditions. First, when the first switching signal is input, the switching instruction receiving unit 77 determines that the first direction pattern is switched, and when the second switching signal is input, the switching instruction receiving unit 77 determines that the second direction pattern is switched. When the third switching signal is input, it is determined that the third direction pattern has been switched. Next, the switching instruction accepting unit 77 corresponds to the direction pattern table stored in advance in the EEPROM 59 and determined by the first to third switching signals input from the detecting unit 71 among the first to third direction patterns. To specify a predetermined scene.

  FIG. 10 is a diagram illustrating an example of a direction pattern table. Referring to FIG. 10, direction pattern table 113 includes three direction pattern records corresponding to the three direction patterns, and associates the three direction patterns with any of the three scenes. The direction pattern record includes a direction pattern item and a scene item. A direction pattern name is set in the direction pattern item, and a scene name is set in the scene item. The direction pattern name of the first direction pattern is associated with the scene name “lecture”. The reason for associating the first direction pattern with the scene name “lecture” is that the first direction pattern is suitable for recording in the scene of “lecture”. The direction name of the second direction pattern is associated with the scene name “conference”. The reason why the second direction pattern is associated with the scene name “conference” is that the second direction pattern is suitable for recording in the “conference” scene. The direction pattern name of the third direction pattern is associated with the scene name “music”. The reason why the third direction pattern is associated with the “music” scene is that the third direction pattern is suitable for recording in the “music” scene.

  When the switching instruction accepting unit 77 refers to the direction pattern table 113 and identifies a scene corresponding to the first to third switching signals input from the detection unit 71, the recommended scene corresponding to the identified scene A determination screen is displayed on the LCD 65. When the first switching signal is input from the detection unit 71, the switching instruction receiving unit 77 displays a first recommended scene determination screen corresponding to the “lecture” scene, and the second switching signal is input from the detection unit 71. The second recommended scene determination screen corresponding to the “conference” scene is displayed, and when the third switching signal is input from the detection unit 71, the third recommended scene determination screen corresponding to the “music” scene is displayed. indicate.

  FIG. 11 is a diagram illustrating an example of a first recommended scene determination screen. Referring to FIG. 11, the first recommended scene determination screen 250 calls an icon 251 assigned to the scene with the scene name “Lecture”, a character string “Recommended Scene [Lecture]”, and “Recommended Scene Settings”. "?", A determination key 251 including a character string "Yes", and a cancel key 253 including a character string "No". The enter key 251 corresponds to the first function button 9, and the cancel key 253 corresponds to the second function button 10. When the user presses the first function button 9, the scene with the scene name “lecture” is determined, and when the user presses the second function button 10, the scene with the scene name “lecture” is not determined. The icon 251 assigned to the scene with the scene name “lecture” is the same as the icon 211 included in the scene selection screen 210 shown in FIG. For this reason, the user can confirm that the parameter corresponding to the scene with the scene name “lecture” is set by looking at the first recommended scene determination screen 250.

  FIG. 12 is a diagram illustrating an example of a second recommended scene determination screen. Referring to FIG. 12, the second recommended scene determination screen 260 calls an icon 265 assigned to the scene with the scene name “conference”, a character string “recommended scene [conference]”, and “recommended scene setting”. "?", A determination key 261 including a character string "Yes", and a cancel key 263 including a character string "No". The enter key 261 corresponds to the first function button 9, and the cancel key 263 corresponds to the second function button 10. When the user presses the first function button 9, the scene with the scene name “conference” is determined, and when the user presses the second function button 10, the scene with the scene name “conference” is not determined. The icon 265 assigned to the scene with the scene name “conference” is the same as the icon 221 included in the scene selection screen 220 shown in FIG. For this reason, the user can confirm that the parameter corresponding to the scene with the scene name “conference” is set by looking at the second recommended scene determination screen 260.

  FIG. 13 is a diagram illustrating an example of a third recommended scene determination screen. Referring to FIG. 13, the third recommended scene determination screen 270 calls an icon 275 assigned to the scene with the scene name “music”, a character string “recommended scene [music]”, and “recommended scene setting”. "?", A determination key 271 including a character string "Yes", and a cancel key 273 including a character string "No". The enter key 271 corresponds to the first function button 9, and the cancel key 273 corresponds to the second function button 10. When the user presses the first function button 9, the scene with the scene name “music” is determined, and when the user presses the second function button 10, the scene with the scene name “music” is not determined. The icon 275 assigned to the scene with the scene name “music” is the same as the icon 231 included in the scene selection screen 230 shown in FIG. For this reason, the user can confirm that the parameter corresponding to the scene with the scene name “music” is set by looking at the second recommended scene determination screen 260.

  Returning to FIG. 6, the switching instruction accepting unit 77 accepts the switching instruction when the user presses the first function button 9 while any of the first to third recommended scene determination screens is displayed on the LCD 65. . The switching instruction is an instruction to switch the recording condition to a plurality of parameters for executing a plurality of types of processing determined by the correspondence table 111 corresponding to the specified scene, and the first recommended new decision screen is displayed on the LCD 65. When the first function button 9 is pressed in the displayed state, the switching instruction specifies the scene name “lecture” and the first function button 9 is displayed in the state where the second recommended new decision screen is displayed on the LCD 65. Is pressed, the switching instruction specifies the scene name “conference”, and when the first function button 9 is pressed while the third recommended new decision screen is displayed on the LCD 65, the switching instruction is the scene. Identify the name "music".

  When the switching instruction accepting unit 77 accepts the switching instruction, the setting unit 75 selects the scene name of the scene specified by the switching instruction from the four correspondence records included in the correspondence table 111 stored in the ROM 63. Extract the corresponding records set in the item. The setting unit 75 stores a plurality of parameters respectively corresponding to a plurality of types of processing included in the extracted corresponding record in the EEPROM 59 as recording conditions. However, when a plurality of parameters are already stored as recording conditions in the EEPROM 59, the stored parameters are overwritten and stored.

  When the user operates the dial 25 and switches the dial 25 to any one of the first position, the second position, and the third position, one of the first to third direction patterns is determined. A plurality of predetermined parameters are set as recording conditions corresponding to a predetermined scene for the determined one of the third direction patterns. Thereby, the recording condition can be set by a simple operation of switching the direction pattern by rotating the dial 25.

  On the other hand, if the user operates the control button 17 to select one of the four scene selection screens and presses the determination button 19, it is displayed when the determination button 19 is pressed among the four scene selection screens. A plurality of predetermined parameters are set as recording conditions corresponding to the scene corresponding to the scene selection screen. For this reason, the user can set the recording condition regardless of the direction pattern that determines the set of directivity directions of the first directional microphone 45 and the second directional microphone 47. For this reason, any of the four predetermined scenes can be combined with any of the first to third direction patterns, and recording can be performed under a plurality of conditions.

  The codec 31, the encoder / decoder 43, the VAS unit 101, and the self-timer unit 103 execute a plurality of types of processing on the sound output from the first directional microphone 45 and the second directional microphone 47, and the processed sound is processed. A recording unit for recording is configured. The recording control unit 79 controls the recording unit to execute a plurality of processes, and stores the processed sound in the EEPROM 59. The recording control unit 79 includes an encoding control unit 81, a VAS control unit 83, a self timer control unit 85, a sensitivity adjustment control unit 87, an ALC control unit 89, a low frequency correction control unit 91, and a low cut filter control. Part 93 and a recording peak limiter control part 95.

  The encoding control unit 81 reads out parameters used for executing the compression encoding process from among a plurality of parameters for executing a plurality of types of processing stored in the EEPROM 59 as recording conditions, and controls the encoder / decoder 43. Then, the audio signal is compressed at a bit rate determined by the read parameter.

  The VAS control unit 83 reads a parameter used to execute the VAS process among a plurality of parameters for executing a plurality of types of processes stored as recording conditions in the EEPROM 59. When the read parameter indicates “ON”, the VAS control unit 83 causes the VAS unit 101 to execute the VAS process and cut the sound signal of the silent portion. When the read parameter indicates “OFF”, the VAS control unit 83 does not cause the VAS unit 101 to execute the VAS process.

  The self-timer control unit 85 reads a parameter used for executing the self-timer process among a plurality of parameters for executing a plurality of types of processes stored in the EEPROM 59 as recording conditions. When the read parameter indicates “ON”, the self-timer control unit 85 outputs an instruction to enable the self-timer process to the self-timer unit 103 to execute the self-timer process. When the read parameter indicates “OFF”, the self-timer control unit 85 outputs an instruction to invalidate the self-timer process to the self-timer unit 103 and does not cause the self-timer unit 103 to execute the self-timer process.

  The sensitivity adjustment control unit 87 reads out a parameter used for executing the microphone sensitivity adjustment process among a plurality of parameters for executing a plurality of types of processes stored as recording conditions in the EEPROM 59. When the read parameter indicates “high”, the sensitivity adjustment control unit 87 outputs an instruction to increase sensitivity to the sensitivity adjustment unit 35, and the first directional microphone 45 and the second directivity are output to the sensitivity adjustment unit 35. The sensitivity of each of the directional microphone 47 and the omnidirectional microphone 49 is adjusted to a high sensitivity. When the read microphone sensitivity parameter indicates “low”, the sensitivity adjustment control unit 87 outputs an instruction to lower sensitivity to the sensitivity adjustment unit 35, and the first directional microphone 45 and the second directional microphone 47. And the sensitivity of each of the omnidirectional microphones 49 is adjusted to a low sensitivity.

  The ALC control unit 89 reads a parameter used to execute the ALC process from among a plurality of parameters for executing a plurality of types of processes stored in the EEPROM 59 as recording conditions. When the read parameter indicates “ON”, the ALC control unit 89 outputs an instruction to enable auto level control to the ALC unit 33 and causes the ALC unit 33 to adjust the sound input level. When the read parameter indicates “OFF”, the ALC control unit 89 outputs an instruction to invalidate the auto level control to the ALC unit 33 and does not cause the ALC unit 33 to adjust the sound input level.

  The low-frequency correction control unit 91 reads out a parameter used for executing the low-frequency correction processing among a plurality of parameters for executing a plurality of types of processing stored in the EEPROM 59 as recording conditions. When the read parameter indicates “ON”, the low-frequency correction control unit 91 outputs an instruction to enable the low-frequency correction to the low-frequency correction unit 39, and the low-frequency correction unit 39 outputs a low-level audio signal. Correct the area. When the read parameter indicates “OFF”, the low-frequency correction control unit 91 outputs an instruction to invalidate the low-frequency correction to the low-frequency correction unit 39, and the low-frequency correction unit 39 outputs the low frequency of the audio signal. Do not correct the part.

  The low cut filter control unit 93 reads out parameters used for executing the low cut filter processing from among a plurality of parameters for executing a plurality of types of processing stored in the EEPROM 59 as recording conditions. When the read parameter indicates “ON”, the low cut filter control unit 93 outputs an instruction to enable the low cut filter to the low cut filter unit 37, and instructs the low cut filter unit 37 to enable the low cut filter. The low cut filter unit 37 cuts the low-band sound. When the read parameter indicates “OFF”, the low cut filter control unit 93 outputs an instruction to invalidate the low cut filter to the low cut filter unit 37, and does not cause the low cut filter unit 37 to cut a low-band sound.

  The recording peak limiter control unit 95 reads a parameter used to execute the recording peak limiter process among a plurality of parameters for executing a plurality of types of processing stored as recording conditions in the EEPROM 59. When the read parameter indicates “ON”, the recording peak limiter control unit 95 outputs an instruction to enable the low cut filter to the recording peak limiter unit 41, and sets the volume level to the recording peak limiter unit 41 to a predetermined value. Let me: When the read parameter indicates “OFF”, the recording peak limiter control unit 95 outputs an instruction to disable the low cut filter to the recording peak limiter unit 41 and does not cause the recording peak limiter unit 41 to adjust the volume level.

  The change instruction receiving unit 107 receives the scene name from the selection receiving unit 73. The change instruction receiving unit 107 receives a setting change instruction when the user operates the operation unit 7 to input an instruction to change parameter settings. When receiving the setting change instruction, the change instruction accepting unit 107 reads the correspondence record in which the scene name input from the selection accepting unit 73 is set as the item of the scene from the correspondence table 111 stored in the EEPROM 59. The change instruction receiving unit 107 displays on the LCD 65 a parameter setting edit list screen for changing a plurality of types of parameters set in the read corresponding record.

  The parameter setting edit list screen includes a plurality of types of parameter names and a plurality of types of parameters, and is a screen for accepting parameter changes. In the parameter setting edit list screen, the user can operate the operation unit 7 to specify a parameter name and change a parameter corresponding to the specified parameter name.

  When the user presses the enter button 19 by operating the operation unit 7 in a state where the parameter setting edit list screen is displayed on the LCD 65, the change instruction receiving unit 107 displays the scene name input from the selection receiving unit 73. The combination of the changed parameter name and the changed parameter is output to the changing unit 109.

  The change unit 109 receives a scene name and a set of parameter name and parameter from the change instruction receiving unit 107. The changing unit 109 converts the correspondence record in which the scene name input from the change instruction accepting unit 107 is set in the item of the scene among the plurality of correspondence records included in the correspondence table 111 stored in the EEPROM 59, and the changed parameter The name is changed based on the combination of the name and the changed parameter. Thereby, the correspondence table 111 is updated. Since the user can change the correspondence table 111, parameters suitable for the user's use can be set.

  FIG. 14 is a flowchart showing an example of the flow of recording processing. The recording process is a process executed by the CPU 11 when the CPU 11 executes a recording condition setting program stored in the ROM 59, the EEPROM 59, or the memory card 57A. Referring to FIG. 14, CPU 11 reads out a plurality of types of parameters already stored in EEPROM 59 as recording conditions (step S01).

  In the next step S02, the basic screen 200 shown in FIG. In step S03, it is determined whether or not the position of the dial 25 has been switched. Based on the output of the position detection sensor 67, it is determined whether or not the position of the dial 25 has been switched. If it is determined that the position of dial 25 has been switched, the process proceeds to step S04; otherwise, the process proceeds to step S06.

  In step S04, the position of dial 25 after being switched in step S03 is detected. In the next step S05, the first recording setting process is executed, and the process proceeds to step S08. The first recording setting process will be described later. On the other hand, in step S06, it is determined whether or not the scene button has been pressed. If the first function button 9 corresponding to the scene button 201 included in the basic screen 200 shown in FIG. 7 is pressed, it is determined that the scene button has been pressed. If the scene button has been pressed, the process proceeds to step S07; otherwise, the process proceeds to step S08. In step S07, the second recording setting process is executed, and the process proceeds to step S08. The second recording setting process will be described later.

  In step S08, it is determined whether or not the recording button 15 has been pressed. If the record button 15 is pressed, the process proceeds to step S09; otherwise, the process returns to step S03. In step S09, recording is started. In this case, recording is performed by storing in the EEPROM 59 audio signals that have been subjected to a plurality of processes using a plurality of types of parameters stored in the EEPROM 59 as recording conditions. When step S05 and step S07 are not executed, a plurality of processes are executed according to the parameters read out at step S01. When step S05 is executed, according to the parameters set in the first recording setting process described later. When a plurality of processes are executed and step S07 is executed, the plurality of processes are executed in accordance with parameters set in a second recording setting process described later. In the next step S10, when the user presses the stop button 13, the recording is terminated and the recording process is terminated.

  FIG. 15 is a flowchart showing an example of the flow of the first recording setting process. The first recording setting process is a process executed in step S05 of FIG. Referring to FIG. 15, in step S11, a direction pattern corresponding to the position of dial 25 detected in step S04 of FIG. 14 is specified. In the next step S12, a scene corresponding to the direction pattern specified in step S11 is specified. In the direction pattern table 113 stored in the ROM 63, the scene associated with the direction pattern specified in step S11 is specified.

  In the next step S13, a recommended scene determination screen corresponding to the scene specified in step S12 is displayed on the LCD 65. When the scene with the scene name “lecture” is specified in step S12, the first recommended scene determination screen 250 shown in FIG. 11 is displayed on the LCD 65, and when the scene with the scene name “conference” is specified in step S12, The second recommended scene determination screen 260 shown in FIG. 12 is displayed on the LCD 65, and when the scene with the scene name “music” is specified in step S12, the third recommended scene determination screen 270 shown in FIG. To do.

  In the next step S14, it is determined whether or not the enter button 19 has been pressed. If determination button 19 is pressed, the process proceeds to step S16; otherwise, the process proceeds to step S15. In step S15, it is determined whether or not the stop button 13 has been pressed. If stop button 13 is pressed, the process proceeds to step S18; otherwise, the process returns to step S14.

  In step S16, a correspondence record in which the scene name of the scene specified in step S12 is set in the scene item is selected from the four correspondence records included in the correspondence table 111 stored in the EEPROM 59. In the next step S17, a parameter setting process is executed, and the process proceeds to step S18. The parameter setting process will be described later. In step S18, basic screen 200 is displayed on LCD 65, and the process returns to the recording process.

  FIG. 16 is a flowchart illustrating an example of the flow of parameter setting processing. The parameter setting process is a process executed in step S17 in FIG. 15 and step S35 in FIG. When executed in step S17 in FIG. 15, the corresponding record selected in step S16 in FIG. Referring to FIG. 16, in step S21, a parameter set in the item of compression encoding of the corresponding record is acquired as a parameter used for executing the encoding process. In step S22, the parameter set in the item of microphone sensitivity is acquired as a parameter used for executing the microphone sensitivity adjustment process. In step S23, the parameter set in the ALC item of the corresponding record is acquired as a parameter used for executing the ALC process. In step S24, the parameters set in the low-frequency correction item of the corresponding record are acquired as parameters used for executing the low-frequency correction processing. In step S25, the parameter set in the item of the low cut filter of the corresponding record is acquired as a parameter used for executing the low cut filter process. In step S26, the parameter set in the recording peak limiter item of the corresponding record is acquired as a parameter used for executing the recording peak limiter process. In step S27, the parameter set in the self-timer item of the corresponding record is acquired as a parameter used for executing the self-timer process. In step S28, the parameter set in the VAS item of the corresponding record is acquired as a parameter used for executing the VAS process.

  In the next step S29, the parameters acquired in steps S21 to S28 are stored in the EEPROM 59 as recording conditions, and the process returns to the first recording setting process. As a result, in step S16 of FIG. 15 as parameters for executing the encoding process, microphone sensitivity adjustment process, ALC process, low frequency correction process, low cut filter process, recording peak limiter process, self-timer process, and VAS process, respectively. A parameter defined by the selected corresponding record is set.

  FIG. 17 is a flowchart showing an example of the flow of the second recording setting process. The second recording setting process is a process executed in step S07 in FIG. Referring to FIG. 17, in step S31, correspondence table 111 stored in EEPROM 59 is read. In the next step S32, four scene selection screens are sequentially displayed on the LCD 65 one by one. Specifically, any one of the four scene selection screens shown in FIG. 8 is displayed on the LCD 65, and each time the user presses the right button 17C or the left button 17D of the control button 17, another scene selection is selected. Switch to the screen.

  In the next step S33, it is determined whether or not a scene has been selected by the user. When pressing of the enter button 19 is detected, a scene is selected. If a scene has been selected, the process proceeds to step S34; otherwise, the process returns to step S32. Of the four scene selection screens, a scene corresponding to the scene selection screen displayed on the LCD 65 is selected when pressing of the enter button 19 is detected.

  In step S34, the correspondence record in which the scene name of the scene selected in step S33 is set as the item of the scene among the four correspondence records included in the correspondence table 111 read in step S31 is selected. In the next step S35, the parameter setting process shown in FIG. 16 is executed, and the process proceeds to step S36. The parameter setting process executed in step S35 makes the corresponding record selected in step S34 symmetrical. In step S36, basic screen 200 is displayed on LCD 65, and the process returns to the recording process.

  By executing the parameter setting process in step S35, the encoding process, the microphone sensitivity adjustment process, the ALC process, the low frequency correction process, the low cut filter process, the recording peak limiter process, the self timer process, and the VAS process are executed. As the parameters, parameters determined by the corresponding record selected in step S34 are set.

  As described above, in the IC recorder 1 according to the present embodiment, the user rotates the dial 25 so that the directions in which the first directional microphone 45 and the second directional microphone 47 are directed are predetermined. When switched to one of the three direction patterns, the direction pattern after switching from the first to third direction patterns is detected. The sound output from the first directional microphone 45 and the second directional microphone 47 is subjected to encoding processing, microphone sensitivity adjustment processing, ALC processing, low frequency correction processing, low cut filter processing, recording peak limiter processing, self-timer. A plurality of parameters used to execute each of a plurality of types of processing including processing and VAS processing are associated with the detected ones of the first to third direction patterns for each of the plurality of types of processing by the correspondence table 111. Set to parameter. For this reason, the first directional microphone 45 and the second directional microphone 45 and the second directional microphone 47 can be simply switched to any one of the first to third directional patterns. Parameters used for executing a plurality of types of processing on the sounds output from the microphones 47 can be set.

  Further, when it is detected that one of the first to third direction patterns has been switched, it is associated with the direction pattern detected by the correspondence table 111 on the condition that a switching instruction from the user is accepted. Set to the parameters associated with each type of processing. For this reason, after a direction pattern is switched to any one of the first to third direction patterns, if a switching instruction is not accepted, for each of a plurality of types of processes associated with the detected direction pattern by the correspondence table 111. Since the associated parameter is not set, only the direction in which each of the first directional microphone 45 and the second directional microphone 47 is directed can be switched without changing the recording condition.

  Furthermore, when the user presses the enter button 19 when any of the four scene selection screens 210, 220, 230, 240 is displayed on the LCD 65, the four scene selection screens 210, 220, 230, 240 are displayed. Of these, the scene corresponding to the scene selection screen displayed when the determination button 19 is pressed is selected. Then, in response to the scene being selected by the user, the parameter selected for each of a plurality of types of processing associated by the correspondence table 111 is set for the scene selected by the user among the four scenes. To do. Therefore, if the user performs an operation of selecting one of the four scenes, the first directional microphone 45 and the first directional microphone 45 and the second directional microphone 47 are independent of the direction in which the first directional microphone 45 and the second directional microphone 47 are directed. Parameters used for executing a plurality of types of processing on the sound output from the second directional microphone 47 can be set.

  In the present embodiment, the IC recorder 1 has been described as an example of the recording apparatus. However, the recording condition setting method for causing the IC recorder 1 to execute the processes shown in FIGS. It goes without saying that the invention can be captured as a recording condition setting program that causes the CPU 11 to execute the setting method.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

1 IC recorder, 5 sound collection unit, 7 operation unit, 11 CPU, 25 dial, 26, 26A, 26B protrusion, 31 codec, 33 ALC unit, 35 sensitivity adjustment unit, 37 low cut filter unit, 39 low frequency correction unit, 41 Recording Peak Limiter, 43 Encoder / Decoder, 45 Directional Microphone, 45A Rotating Axis, 47 Directional Microphone, 49 Nondirectional Microphone, 45A, 47A Rotating Axis, 51 RAM, 53 Speaker, 55 Headphone Terminal, 57 External Memory Controller, 57A memory card, 59 EEPROM, 61 serial interface, 63 ROM, 65 LCD, 67 position detection sensor, 69 bus, 71 detection unit, 73 selection reception unit, 75 setting unit, 77 switching instruction reception unit, 79 recording control unit , 81 Coding control unit, 83 VAS system , 85 Self-timer control unit, 87 Sensitivity adjustment control unit, 89 ALC control unit, 91 Low frequency correction control unit, 93 Low cut filter control unit, 95 Recording peak limiter control unit, 101 VAS unit, 103 Self-timer unit, 107 Instruction accepting unit, 109 changing unit, 111 correspondence table, 113 direction pattern table, 200 basic screen, 201 scene button, 210, 220, 230, 240 scene selection screen, 250, 260, 270 first to third recommended scene determination screens .

Claims (7)

A plurality of microphones having directivity and outputting the collected sound;
Switching means for switching the direction in which each of the plurality of microphones is directed to any one of a plurality of predetermined direction patterns;
Detecting means for detecting a direction pattern switched by the switching means among the plurality of direction patterns;
Recording means for performing a plurality of types of processing on the sound collected by the plurality of microphones and recording the processed sound;
Setting means for setting parameters for the recording means to execute the plurality of types of processing;
Storage means for storing, in association with each of the plurality of types of parameters, parameters used by the recording unit for executing the plurality of types of processing for each of the plurality of direction patterns;
When the direction pattern switched by the switching unit is detected by the detection unit, the setting unit sets a parameter for executing a plurality of types of processing associated with the direction pattern.   The setting means includes a switching instruction receiving means for receiving a switching instruction by a user when a direction pattern switched by the switching means is detected by the detecting means, and the detection is performed on condition that the switching instruction is received. The recording apparatus according to claim 1, wherein the recording apparatus is set to a parameter for executing a plurality of types of processing associated with the directional pattern. The storage means stores, in association with each of the plurality of types of processing, parameters used by the recording unit for executing the plurality of types of processing for each of a plurality of scenes equal to or greater than the number of the plurality of direction patterns. , Each of the plurality of direction patterns is associated with any one of the plurality of scenes,
A selection receiving means for receiving one selection from the at least one scene by the user;
The setting means uses a parameter for executing a plurality of types of processing associated with the scene selected by the user among the plurality of scenes in response to selection by the user being received by the selection receiving means. The recording device according to claim 1, wherein the recording device is set. A change instruction receiving means for receiving a change instruction by a user;
4. The recording according to claim 1, further comprising: a changing unit that changes a parameter associated with each of the plurality of types of processing for each of the plurality of scenes according to the received change instruction. apparatus.   The multiple types of processing include microphone sensitivity adjustment processing for adjusting microphone sensitivity, auto level control processing for adjusting the input level to an appropriate level, low frequency correction processing for correcting low frequency sound, and low frequency sound processing. Low cut filter processing for cutting, encoding processing for encoding audio signals, recording peak limiter processing for reducing the volume level to a predetermined value or less, self-timer processing for starting recording at a predetermined time, and cutting silence The recording apparatus according to claim 1, comprising at least one selected from VAS processing. A plurality of microphones having directivity and outputting the collected sound;
A recording condition setting method executed by a recording apparatus comprising: a switching unit that switches a direction in which each of the plurality of microphones is directed to one of a plurality of predetermined direction patterns,
Detecting a direction pattern switched by the switching means among the plurality of direction patterns;
Performing a plurality of types of processing on the sound collected by the plurality of microphones, and storing the processed sound in a storage means;
Setting parameters for performing the plurality of types of processing in the recording step;
For each of the plurality of directional patterns, the step of recording the parameters used for executing the plurality of types of processing in the recording step in association with each of the plurality of types of processing,
The setting step includes a step of setting a parameter for executing a plurality of types of processing associated with the direction pattern when the direction pattern switched by the switching unit is detected in the detecting step. , Recording condition setting method. A plurality of microphones having directivity and outputting the collected sound;
A recording condition setting program that is executed by a computer that controls a recording device including a switching unit that switches a direction in which each of the plurality of microphones is directed to any one of a plurality of predetermined direction patterns,
Detecting a direction pattern switched by the switching means among the plurality of direction patterns;
Performing a plurality of types of processing on the sound collected by the plurality of microphones, and storing the processed sound in a storage means;
Setting parameters for performing the plurality of types of processing in the recording step;
For each of the plurality of direction patterns, causing the computer to execute a step of associating and storing parameters used for executing the plurality of types of processing in the recording step for each of the plurality of types of processing,
The setting step includes a step of setting a parameter for executing a plurality of types of processing associated with the direction pattern when the direction pattern switched by the switching unit is detected in the detecting step. Recording condition setting program.

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