JP2017015957A - Musical performance recording device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize an appropriate recording time even when recording is stopped through a user operation during recording.SOLUTION: A musical performance recording device according to an embodiment comprises an acquisition unit for acquiring pronunciation information, a progress unit for controlling a progress of time in the device, an instruction acceptance unit for accepting an instruction of recording start and recording stop of the pronunciation information, a recording unit for recording the pronunciation information acquired during a recording period determined based on the instruction of recording start and recording stop according to the progress of time, a setting unit for setting section positions which are periodically repeated during the recording period, a specification unit for specifying a stop section position corresponding to the instruction timing of recording stop among the section positions and reproduction control unit for performing control such that sound corresponding to the pronunciation information recorded during the recording period is repeatedly reproduced according to the progress of time after the instruction of recording stop and passage of the stop section position.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a technique for recording a performance and performing loop reproduction.

  There is a technique in which sounds generated by a user's performance are recorded over a period of several seconds, and the sounds recorded during that period are repeatedly reproduced, and further, the sounds produced by the performance are added to the reproduced sounds and recorded. . Hereinafter, the repeated reproduction may be referred to as loop reproduction. According to this technique, multiplex recording can be performed while loop-playing already recorded sound. Such multiple recording is not limited to the case of recording as data indicating the waveform of an actual sound. That is, sound generation control data such as a performance event generated in response to a performance operation may be recorded. The performance event is information for sound generation control of the sound source such as key-on and key-off, for example. For example, Patent Document 1 discloses a technique for recording a performance event while loop-playing the sound thus recorded.

JP 2011-112679 A

  According to this technique, the time for loop playback is determined according to the time of the first recording. The recording period from the start to the end of sound recording is defined by the user's switch operation. During this recording period, the user plays while assuming the beat length. Here, if the length of the recording period (recording time) determined by the user's switch operation is not an integral multiple of the beat length assumed by the user, the user will feel uncomfortable during loop playback. End up. Therefore, the user is required to accurately operate the switch for determining the recording period.

  However, since the switch operation is performed almost in parallel with the performance, it is difficult to accurately operate the recording stop switch. On the other hand, if the recording time is set in advance, the operation of the recording end switch becomes unnecessary. In such a case, special settings are required before performance. Further, even if the user wants to change the recording time while performing during recording, the recording time cannot be changed.

  One of the objects of the present invention is to realize an appropriate recording time even when recording is stopped by a user operation during recording.

  According to an embodiment of the present invention, an acquisition unit that acquires pronunciation information for generating a sound, a progress unit that controls the progress of time in the apparatus, and a start of recording of the pronunciation information by operating the operation unit An instruction receiving unit that receives an instruction to stop recording, and a recording unit that records the pronunciation information acquired by the acquiring unit according to the progress of the time in a recording period determined based on the recording start and recording stop instructions A setting unit that sets a division position that is periodically repeated in the recording period, a specifying unit that specifies a stop division position corresponding to the timing of the recording stop instruction among the repeated division positions, and the recording After the stop instruction and the passage of the stop break position, the sound corresponding to the pronunciation information recorded during the recording period is played according to the progress of the time. Ri returns playing recording apparatus characterized by comprising: a reproduction control section for controlling to reproduce is provided.

  The specifying unit specifies the next delimiter position as the stop delimiter position when the time from the last delimiter position to the recording stop instruction time is a predetermined time or more, and The reproduction control unit may start the reproduction from the start point of the recording period after waiting for the stop delimiter position to be reached.

  The sound generation information includes information indicating a sound generation instruction generated by a sound source unit and information indicating a mute instruction corresponding to the sound generation instruction, and the recording unit is configured to perform the recording stop instruction by the timing of the recording stop instruction. When the information indicating the mute instruction corresponding to the pronunciation instruction is not acquired by the acquisition unit, the information indicating the mute instruction is acquired at any timing in the period from the recording stop instruction to the stop break position. May be recorded as

  The setting unit may accept a setting of a cycle of the separation position.

  When an instruction to start recording and stop recording is received during playback by the playback control unit, the recording unit displays the pronunciation information acquired by the acquisition unit in a period corresponding to the instruction according to the progress of the time. May be further recorded.

  Further, according to one embodiment of the present invention, the computer is configured to acquire the pronunciation information for generating the sound, the progression unit that controls the progress of time in the apparatus, and the operation unit to perform the operation. An instruction receiving unit that receives instructions to start and stop recording of pronunciation information, and in a recording period determined based on the instructions to start and stop recording, the pronunciation information acquired by the acquisition unit Therefore, a recording unit for recording, a setting unit for setting a division position that is periodically repeated in the recording period, and a specification for specifying a stop division position corresponding to the timing of the recording stop instruction among the repeated division positions And a sound corresponding to the pronunciation information recorded during the recording period after the recording stop instruction and after the stop delimiter position has elapsed, Reproduction control section for controlling to reproduce repeatedly with progress of time, the program to function as is provided.

  According to the present invention, an appropriate recording time can be realized even when recording is stopped by a user operation during recording.

It is a figure which shows the external appearance of the electronic keyboard musical instrument in 1st Embodiment of this invention. It is a figure which shows the structure of the hardware of the electronic keyboard musical instrument in 1st Embodiment of this invention. It is a figure which shows the structure of the performance recording function in 1st Embodiment of this invention. It is a flowchart which shows the loop recording process in 1st Embodiment of this invention. It is a flowchart which shows the recording process in 1st Embodiment of this invention. It is a figure explaining the example of the performance event recorded by a loop recording process. It is a figure explaining the relationship between a recording stop instruction | indication and a stop division | segmentation position. 5 is a flowchart showing a loop recording process following FIG. It is a figure explaining the example when a stop delimiter position is specified after a recording stop instruction | indication. It is a figure explaining the example in case a stop division | segmentation position is specified before a recording stop instruction | indication. It is a flowchart which shows the reproduction | regeneration processing in 1st Embodiment of this invention. It is a figure which shows the system which connected the some electronic keyboard musical instrument in 2nd Embodiment of this invention.

  Hereinafter, an electronic keyboard instrument according to an embodiment of the present invention will be described in detail with reference to the drawings. The following embodiments are examples of embodiments of the present invention, and the present invention should not be construed as being limited to these embodiments. Note that in the drawings referred to in the present embodiment, the same portion or a portion having a similar function is denoted by the same reference symbol or a similar reference symbol (a reference symbol simply including A, B, etc. after a number) and repeated. The description of may be omitted. In addition, the dimensional ratios of the drawings (ratio between components, vertical and horizontal height directions, etc.) may differ from the actual ratios for convenience of explanation, or a part of the configuration may be omitted from the drawings.

<First Embodiment>
[Overview]
FIG. 1 is a diagram showing an external appearance of an electronic keyboard instrument in the first embodiment of the present invention. The electronic keyboard instrument 1 is an example of an electronic musical instrument having a keyboard 70 that includes a plurality of keys as performance operators. When the user operates a key on the keyboard 70, sound is generated from the speaker 40. The type (tone color) of the generated sound is changed using the operation button 201, the touch sensor 203, and the slider 205 (hereinafter, these may be collectively referred to as the operation unit 20 (see FIG. 2)). Various information is displayed on the display unit 30.

  The electronic keyboard instrument 1 has a function of performing a loop recording process for recording a performance content over a predetermined time, looping and reproducing a sound corresponding to the recorded performance, and further recording the performance content. Performance recording function). The recording time is determined by operating the operation unit 20. In this example, the recording of the performance content is started by operating the operation unit 20, and the recording of the performance content is ended by operating the operation unit 20 during the recording. The period from the start of recording to the end of recording is called a recording period, and the length of the recording period is called a recording time. Further, a period to be subjected to loop reproduction is called a loop period, and the length of the loop period is called a loop time. Note that according to the loop recording process performed by the electronic keyboard instrument 1, the end timing of the recording period may not always match the end timing of the loop period.

  The loop period is determined according to the initial recording period. In addition, if there is a further recording start instruction during loop playback, the content of the performance is recorded in a form that is additionally recorded (sometimes referred to as overdubbing) to the loop playback sound after that until the recording end instruction. Is recorded.

  The above recording may record sound data indicating the waveform of an actual sound signal, but in this example, it means recording sound generation control data including various performance events for sound generation. Yes. Therefore, in this example, a sound signal is generated by supplying the recorded sound generation control data to the sound source unit 60 (see FIG. 2). Hereinafter, a configuration for realizing the above processing will be described in detail. In addition, when recording sound data, it demonstrates as another embodiment. The sound generation control data and the sound data are both examples of sound generation information for generating sound.

[Hardware configuration]
FIG. 2 is a diagram showing a hardware configuration of the electronic keyboard instrument according to the first embodiment of the present invention. The electronic keyboard instrument 1 includes a control unit 10, an operation unit 20, a display unit 30, a speaker 40, a storage unit 50, a sound source unit 60, a keyboard 70, and an interface 80. Each of these components is connected via a bus.

  The control unit 10 includes an arithmetic processing circuit such as a CPU and a storage device such as a RAM and a ROM. The control unit 10 causes the CPU to execute a control program stored in the storage unit 50 to realize various functions in the electronic keyboard instrument 1. Some of the realized functions will be described separately.

  The operation unit 20 is a device such as the operation button 201, the touch sensor 203, and the slider 205 described above, and outputs a signal corresponding to the input operation to the control unit 10. The display unit 30 is a display device such as a liquid crystal display or an organic EL display, and displays a screen based on control by the control unit 10. Note that the touch sensor 203 and the display unit 30 may integrally form a touch panel. The speaker 40 generates a sound corresponding to the sound signal by amplifying and outputting the sound signal output from the control unit 10 or the sound source unit 60.

  The storage unit 50 is a storage device such as a nonvolatile memory. The storage unit 50 stores a control program executed by the control unit 10. The storage unit 50 includes an area for storing data (recorded data) obtained by the loop recording process. The recorded data may be temporarily stored in the RAM of the control unit 10 in some cases.

  The keyboard 70 includes a plurality of arranged keys and outputs sound generation control data corresponding to the operation of each key to the control unit 10. As described above, the pronunciation control data includes the information indicating the position of the operated key (key number), the information indicating that the key is pressed (key on), the information indicating that the key is released (key off), and the key pressing speed ( Velocity) and other performance events. Specifically, when a key is pressed, key-on, velocity, and key number are output in association with each other, and when the key is released, key-off is output. Key-on is a sound generation instruction, and key-off is a mute instruction. The control unit 10 causes the sound source unit 60 to generate a sound signal using the sound generation control data. Such sound generation control data is, for example, data in the MIDI format. The sound source unit 60 generates a sound signal based on the sound generation control data input under the control of the control unit 10. In addition to the sound generation control data from the keyboard 70, the control unit 10 can cause the sound source unit 60 to generate a sound signal based on the sound generation control data included in the recording data stored in the storage unit 50 or the like. .

  The interface 80 includes a terminal for inputting / outputting signals to / from an external device. This terminal is, for example, a terminal for outputting a sound signal, a cable connection terminal for transmitting / receiving timing control signals, sound generation control data, and the like.

[Performance recording function]
Next, the performance recording function among the functions realized by the control unit 10 executing the control program in the electronic keyboard instrument 1 will be described. A part or all of the configuration for realizing each function described below may be realized by hardware. A loop recording process to be described later is executed by the performance recording function.

  FIG. 3 is a diagram showing the configuration of the performance recording function in the first embodiment of the present invention. The performance recording function 100 realized in the electronic keyboard instrument 1 is realized by each configuration of the acquisition unit 101, the progression unit 103, the instruction reception unit 105, the recording unit 107, the setting unit 109, the specifying unit 111, and the reproduction control unit 113. .

  The acquisition unit 101 acquires sound generation control data. This sound generation control data includes a performance event generated on the keyboard 70 and the like.

  The progression unit 103 controls time progression in the apparatus. In this example, the progress of time is defined by information indicating a measure from the start of the song, a beat from the start of each measure, and a tick from the start of each beat, and is converted into a so-called MBT (Measure Beat Tick) method. It is possible. A tick corresponds to a minimum unit time controlled by the advancing unit 103. The number of beats per measure and the number of ticks per beat are set in advance by operating the operation unit 20.

  The progression unit 103 sets tempo information in response to an operation on the operation unit 20. Tempo information is information for defining the length of one beat, and is defined here as a value indicating the number of beats per minute. For example, when the tempo information is set to “120”, one beat is controlled to advance in 0.5 seconds. Therefore, the length of one tick corresponding to the minimum unit time is also controlled according to the tempo information. The time point indicated by the progression unit 103 as the current position in the recording period and the loop period is referred to as the current time CT. The current time CT can be expressed by the MBT method. For example, if the current time CT indicates the beginning of the third beat of the second measure, it can also be expressed as “002 (measure): 03 (beat): 000 (ticks)”.

  The instruction receiving unit 105 receives instructions to start and stop recording sound generation control data. A recording start instruction and a recording stop instruction are accepted in response to an operation on the keyboard 70 or the operation unit 20.

  The recording unit 107 records the sound generation control data acquired in the acquisition unit 101 in a recording period determined based on the recording start instruction and the recording stop instruction. In this example, the start point of the recording period is the same as the timing of the recording start instruction. On the other hand, the end point of the recording period is determined as a timing that is the same as or before or after the timing of the recording stop instruction. Thus, the recording period may not be the period from the timing of the recording start instruction to the timing of the recording stop instruction. Details of the relationship between these instructions and the recording period will be described later.

  The sound generation control data acquired during the recording period is recorded in time series as the time controlled by the progression unit 103 progresses. In this example, each performance event of the recorded sound generation control data is associated with generation time information indicating the generation timing. The occurrence time information is defined by, for example, measures, beats, and ticks MBT. The recorded sound generation control data is stored as recording data in the storage unit 50 (or the RAM of the control unit 10).

  The setting unit 109 sets a break position that is periodically repeated in the recording period. The period of the break position is, for example, 1 beat. Note that the period of the separation position may be a plurality of beats. For example, if the cycle is 4 beats, the delimiter position is repeated every 1 bar of 4 beats (also called every 2 bars of 2 beats). The setting of the period of the separation position may be changed by an operation on the operation unit 20.

  The identifying unit 111 identifies a partition position corresponding to the recording stop instruction timing among the repeated partition positions. The delimiter position specified by the specifying unit 111 is referred to as a stop delimiter position EP. In this example, the specifying unit 111 specifies the nearest delimiter position as the stop delimiter position EP with respect to the timing of the recording stop instruction. Note that the specific method can be set in various ways, and any delimiter position may be specified in accordance with the timing of the recording stop instruction.

  The reproduction control unit 113 controls the sound source unit 60 to reproduce sound based on the sound generation control data recorded in the recording period, with the period from the start point of the recording period to the stop break position EP as a loop period. Specifically, the reproduction control unit 113 reads out the recording data, and according to the relationship between the current time CT indicated by the progression unit 103 and the generation time information corresponding to the sound generation control data, and the sound generation unit 60 To generate a sound signal. In order to realize looped reproduction, the current time CT is controlled by the advancing unit 103 so as to change repeatedly from the start point of the recording period to the stop break position EP.

  After the end of the recording period, the loop period continues. Although details will be described later, the outline of the migration processing is as follows. When a delimiter position after the recording stop instruction timing is specified as the stop delimiter position EP, the current time CT pointed to by the advancing unit 103 reaches the stop delimiter position EP from the recording stop instruction timing before recording. Return to the beginning of the period. On the other hand, when the break position prior to the timing of the recording stop instruction is specified as the stop break position EP, the current time CT pointed to by the advancing unit 103 is the start point of the recording period immediately after the timing of the recording stop instruction. Return to. That is, regardless of the relationship between the timing of the recording stop instruction and the stop break position EP, the recording period starts after the stop instruction of recording and after the stop break position EP has elapsed.

  When there is a recording start instruction during playback of the loop period, the recording unit 107 further records the sound generation control data acquired during the period until the recording stop instruction is added to the recording data used for playback of the loop period. To do. In recording, another track may be designated so that the additionally recorded sounding control data can be separated from the sounding control data recorded first. In this case, the sound generation control data recorded in each track may be generated as a sound signal of a different tone color. The above is the description of the performance recording function 100.

[Loop recording process]
Next, processing (loop recording processing) executed by the control unit 10 by the performance recording function 100 will be described.

  FIG. 4 is a flowchart showing the loop recording process in the first embodiment of the present invention. When the start of the loop recording process is instructed by the user's operation on the operation unit 20, the following loop recording process is started. First, the control unit 10 sets “0” to the current time CT (step S101), resets the current time CT, and waits for a recording start instruction (step S103; No). In this example, a guide sound is output from the speaker 40 for each beat after the start of the loop recording process is instructed. When the operation on the recording start button or the operation on any key of the keyboard 70 is performed, the control unit 10 determines that there is an instruction to start recording (step S103; Yes).

  If it is determined that there is a recording start instruction (step S103; Yes), the control unit 10 determines whether or not there is a key operation (step S105). Here, it is determined whether or not there has been any key operation since the last determination in step S105. If the process at step S105 is the first time, it is determined whether or not a key has been operated from the process at step S103 to the present. If there is a recording start instruction by performing an operation on any key of the keyboard 70 in step S103, the operation on this key is determined as the key operation in step S105. When there is a key operation (step S105; Yes), the control unit 10 executes a recording process (step S200).

  FIG. 5 is a flowchart showing recording processing in the first embodiment of the present invention. When the recording process is started, the control unit 10 determines the type of key operation determined to have been operated (step S201). Here, the type of operation is determined as either key depression (key-on) or key release (key-off).

  If the tone generation control data output from the keyboard 70 is key-on (step S201; key-on), the control unit 10 acquires the key number (key number) and key-pressing speed (velocity) at which the key-on occurred (step S203). Then, a note-on performance event including these pieces of information is generated (step S205). On the other hand, when the tone generation control data output from the keyboard 70 is key-off (step S201; key-off), the control unit 10 acquires the key number (key number) where the key-off occurred (step S207), and this information A note-off performance event including is generated (step S209).

  The control unit 10 records the performance event generated in step S205 or step S209 (step S211). This performance event is recorded in the recording data in association with the pronunciation time information corresponding to the current time CT. When the recording of the performance event corresponding to the determined key operation is completed, the recording process ends and the process proceeds to step S107 shown in FIG. If it is determined in step S105 that there is no key operation (step S105; No), the process proceeds to step S107.

  The controller 10 waits for the minimum unit time to elapse since the last change of the current time CT (including the process of step S101) (step S107; No), and when the minimum unit time has elapsed (step S107; In “Yes”, “1” is added to the current time CT (step S109). The minimum unit time corresponds to the length of one tick as described above. If one beat is set to 480 ticks, the current time CT is 0 to 479 as the first beat, and the current time CT is 480 to 959 as the second beat. For example, if the current time CT is “2584”, the tick “184” of the second bar and the second beat is obtained. Thus, the current time CT can be converted into time information determined by the MBT method.

  Subsequently, the control unit 10 determines whether or not there is a recording stop instruction (step S111). If there has been no instruction to stop recording so far (step S111; No), the process returns to step S105 and proceeds. On the other hand, when there is an instruction to stop recording (step S111; Yes), the control unit 10 specifies the stop break position EP (step S121). The subsequent processing continues from the flowchart shown in FIG.

  An example in which the performance event from the start of the loop recording process until the recording stop instruction is recorded by the control unit 10 will be described with reference to FIG.

FIG. 6 is a diagram for explaining an example of a performance event recorded by the loop recording process. In FIG. 6, the horizontal axis is represented as a time axis, and the timing of each operation is represented by reference numerals. Each code is as follows.
RR: start instruction of loop recording processing, RS: recording start instruction, RE: recording stop instruction REC: recording period D0 to D5: delimiter position (corresponding to beat)
KN (white circle): key on, KF (X): key off (bold line between corresponding key on and key off with the same key number)

  After the start instruction RR of the loop recording process, a guide sound is output every beat, and the recording period REC is started by the recording start instruction RS. In the recording period REC until the recording stop instruction RE, there are four key-ons KN in the example of FIG. Key-on KN and key-off KF in the recording period REC are recorded as recording data in association with the occurrence time information. In this example, since the key-off KF4 corresponding to the last key-on has occurred after the recording stop instruction RE, the data is not recorded as it is. If this is the case, the sound corresponding to the last key-on will remain sounded, so a performance event corresponding to the key-off KF4 is automatically added. This specific process (see FIGS. 8, 9, and 10) will be described later. In this example, there is no state where a plurality of keys are pressed simultaneously, but this state may exist.

  Next, a method for specifying the stop break position EP in step S121 in FIG. 4 will be described with reference to FIG.

  FIG. 7 is a diagram for explaining the relationship between the recording stop instruction and the stop break position. In this example, the break position closest to the recording stop instruction timing is specified as the stop break position EP. In the section D4W between the midpoint DH3 between the delimiter positions D3 and D4 and the midpoint DH4 between the delimiter positions D4 and D5, if there is a recording stop instruction, the delimiter position D4 is specified as the stop delimiter position EP. . In the example of FIG. 7, if the recording stop instruction timing is RE1 or RE2, the delimiter position D4 is specified as the stop delimiter position EP. On the other hand, for RE3, the delimiter position D5 is specified as the stop delimiter position EP.

  FIG. 8 is a flowchart showing the loop recording process continued from FIG. When the stop break position EP is specified in the process of step S121 shown in FIG. 4, the control unit 10 determines whether or not the stop break position EP is a time later than the current time CT (EP> CT). (Step S123). When EP> CT (step S123; Yes), the control unit 10 waits until the minimum unit time elapses (step S125; No). When the minimum unit time elapses (step S125; Yes), the control unit 10 sets the current time CT. “1” is added (step S127). Steps S125 and S127 are repeated until EP = CT (step S129; No).

  On the other hand, if it is determined in step S123 that EP> CT is not satisfied (that is, EP ≦ CT) (step S123; No), the performance event recorded after the stop delimiter position EP is deleted (step S131).

  If it is determined in step S129 that EP = CT (step S129; Yes), or after the process of step S131 is executed, a key-off performance event corresponding to all key-ons exists before the stop break position EP. Whether or not (step S133). If it is determined in step S123 that EP> CT (step S123; Yes), there is no performance event recording after the recording stop instruction timing. Therefore, in the determination in step S133, as a substantial process, whether or not there is a target key-off in the period before the recording stop instruction timing (CT in the determination in step S123) instead of the stop break position EP. You may make it determine.

  If a key-off performance event corresponding to all key-ons exists before the stop break position EP (step S133; No), “0” is set to the current time CT (step S137) and the current time CT is reset. Then, the reproduction process (loop reproduction process) is started (step S300).

  On the other hand, when there is no key-off corresponding to a part of key-on (step S133; Yes), the control unit 10 performs a key-off corresponding to the part of the key-on at a predetermined timing before the stop break position EP. Recording is automatically performed (step S135), and the process proceeds to step S137. The timing at which the key-off is recorded may be determined by a preset method. An example of a preset method will be described with reference to FIGS.

  FIG. 9 is a diagram illustrating an example in which a stop break position is specified after a recording stop instruction. When the stop break position EP (break position D4) is specified after the recording stop instruction RE, the control unit 10 determines the timing (for example, the midpoint) of the period RA between the recording stop instruction RE and the stop break position EP. ) Automatically records the key-off KFA.

  Here, the current time CT is reset after the current time CT has reached the stop delimiter position EP (step S129; Yes) by the processing in steps S125, S127, and S129 in FIG. Continue to (Step S300). That is, the playback process (step S300) is not started immediately after the recording stop instruction, but apparently the loop recording process is continued in the state RA until the stop break position EP without recording the performance event. Thereby, since the loop period is defined in beat units, the length can be defined as an integral multiple of the beat. Further, when the reproduction process is started, the reproduction process described later is started while maintaining the periodicity of the beat in the loop recording process. Therefore, the sense of rhythm does not shift when shifting from the loop recording process to the loop reproduction process. In the period RA, only the key-off performance event may be recorded. In this case, the end point of the recording period REC is after the recording stop instruction RE.

  FIG. 10 is a diagram illustrating an example in which a stop delimiter position is specified before a recording stop instruction. When the stop break position EP (break position D4) is specified before the recording stop instruction RE, and when the key-off is not recorded before the stop break position EP, the control unit 10 starts from the stop break position EP. The key-off is automatically recorded a little before. “Slightly before” means that, for example, the key-off KFA may be recorded at a timing that is 10% before the time RD of one beat (or 48 ticks if one beat is 480 ticks). Such processing is executed regardless of whether or not the key-off KF is recorded after the stop break position EP. Even if the performance event recorded after the stop break position EP is a performance event that occurred before the recording stop instruction RE, the performance event is not recorded as a result of the process of step S131. Therefore, the recording period REC ends retroactively to the stop break position EP. That is, the end point of the recording period REC comes before the recording stop instruction RE.

  Note that the time RD may be changed depending on whether or not the key-off KF is recorded. For example, when the key-off KF is recorded after the stop break position EP, the time RD may be made longer than when the key-off KF is not recorded.

  As described above, when the stop break position EP is specified before the recording stop instruction, the process proceeds from the loop recording process to the loop reproduction process immediately after the recording stop instruction. In this case, since the transition is not made at the break position, the sense of rhythm may be shifted. However, since the loop period is maintained at an integral multiple of the beat as described above, a great sense of incongruity does not occur. In order to further reduce this uncomfortable feeling, the break position after the recording stop instruction may be easily specified as the stop break position EP. In the example of FIG. 7, the section D4W may be shifted to a previous period. In addition, the timing at which the loop recording process is shifted to the loop reproduction process may be set as the next break position after the stop break position EP.

  Assuming the transition from the loop recording process to the loop reproduction process immediately after the recording stop instruction, the start part of the loop reproduction process may be shifted by the time from the stop break position EP to the recording stop instruction RE. For example, when the time from the stop break position EP to the recording stop instruction RE corresponds to 100 ticks, CT = 100 may be set in the process of step 137 in FIG. 8 for specifying the start position of the loop reproduction process. In this case, some sounds may not be pronounced, but since the periodicity of the beat in the loop recording process remains maintained, the sense of rhythm does not shift.

  Next, the reproduction process in step S300 will be described with reference to FIG.

  FIG. 11 is a flowchart showing the reproduction processing in the first embodiment of the present invention. When the reproduction process is started, the control unit 10 reads the performance event recorded in the recorded data corresponding to the current time CT (step S301), and the sound source unit 60 uses the sound generation control data based on the read performance event. Controls the content of the generated sound signal.

  Subsequently, the control unit 10 determines whether or not it corresponds to a recording period (additional recording period) until an instruction to stop recording is given after an instruction to start recording is given during the reproduction process ( Step S303). The case where recording is in progress (step S303; Yes) will be described later. When recording is not in progress (step S303; No), the control unit 10 waits for the minimum unit time to elapse since the current time CT was last changed (including the process of step S137) (step S307; No). When the minimum unit time has elapsed (step S307; Yes), “1” is added to the current time CT (step S309).

  Subsequently, the control unit 10 determines whether or not there is a reproduction end instruction (step S311). When the instruction to end the reproduction has been given so far (step S311; Yes), the control unit 10 ends the reproduction process (see FIGS. 8 and 11). On the other hand, if there is no instruction to end reproduction (step S311; No), the control unit 10 determines whether CT = EP (step S313). If CT = EP is not satisfied (step S313; No). Returns to the process of step S301, and when CT = EP (step S313; Yes), CT is set to “0” (step S315), and then the process returns to step S301. By resetting CT to “0” in step S315, a period (loop period) from CT = 0 to CT = EP is looped and reproduced.

  If it is determined in step S303 that recording is in progress (step S303; Yes), the control unit 10 determines whether or not a key is operated (step S305). Here, it is determined whether or not there has been any key operation since the last determination in step S305. If the process in step S305 is the first time, it is determined whether or not there has been a key operation from the time when the recording start instruction is given during the reproduction process to the present. If it is determined in step S305 that there is no key operation (step S305; No), the process proceeds to step S307. On the other hand, when there is a key operation (step S305; Yes), the control unit 10 executes a recording process (step S200). Since the recording process is the same as the recording process described above, description thereof is omitted. The performance event thus generated may be recorded (for example, recorded on the same track) in addition to the recorded data to be reproduced, or may be recorded as a separate track. In this case, whether to record on the same track or another track may be selected by an operation on the operation unit 20.

  As described above, in the electronic keyboard instrument 1 according to the first embodiment of the present invention, the loop recording process by the performance recording function 100 can be performed in the loop period without strictly controlling the timing of the recording stop instruction. It is possible to maintain an integer multiple of the interval (eg, beat) of the periodic break position. In addition, when a recording stop instruction is issued slightly before the end point of the loop period, the interval between the periodic separation positions can be maintained as it is before and after the transition from the recording period to the reproduction period.

Second Embodiment
In the second embodiment, a description will be given of an electronic keyboard instrument 1A that can be connected and erased by connecting a plurality of units.

  FIG. 12 is a diagram showing a system in which a plurality of electronic keyboard instruments according to the second embodiment of the present invention are connected. In this example, a system in which two electronic keyboard instruments 1A-1 and 1A-2 are connected and linked will be described. The electronic keyboard instruments 1A-1 and 1A-2 are connected via an interface 80 in a wired or wireless manner. By operating the operation unit 20, one of the plurality of devices is set as a master device, and the other devices are set as slave devices. Here, it is assumed that the electronic keyboard instrument 1A-1 is set as the master device. The master device (electronic keyboard instrument 1A-1) outputs a timing control signal to the slave device (electronic keyboard instrument 1A-2). The timing control signal is a signal that is output in conjunction with the time progression control by the progression unit 103 described above, and is a signal for synchronizing the timing.

  For example, the timing control signal can be controlled so that the break positions of one beat coincide with each other. For this reason, when the slave device has recorded data, the progress of the time is controlled based on the timing control signal, and loop reproduction processing is performed using the recorded data, whereby the master device and the slave device 1 Playback is synchronized so that the beats have the same timing. At this time, the loop time may not be the same between the master device and the slave device. Even in such a case, since any loop time is an integral multiple of the length of a beat, for example, the start point of the loop period can be matched every few beats. Also, recording during loop playback can be executed in parallel in each of the master device and the slave device.

<Third Embodiment>
In the third embodiment, a case will be described in which an object to be recorded as recording data is not sound generation control data but waveform data indicating a sound waveform. In this example, the loop period is determined in the same manner as in the first embodiment. Since the data to be recorded is sound waveform data, in the case of controlling the progress of time based on tempo information, waveform expansion / contraction processing is executed based on tempo information in loop reproduction processing. The expansion / contraction process is desirably performed so that the pitch of the sound is not changed.

  Even in the loop recording process, only the data to be recorded is different, and basically the same process as in the first embodiment is possible. If waveform data recording is stopped by a recording stop instruction prior to the stop break position EP, if the waveform amplitude is greater than or equal to a certain value at the time of the recording stop instruction, any of the recording stop instructions until the stop break position EP will occur. Until this timing, the waveform may be expanded without changing the pitch of the sound. At this time, the amplitude may be attenuated. On the other hand, when waveform data recording is stopped by a recording stop instruction after the stop break position EP, the waveform is compressed without changing the sound pitch so that the end point of the waveform data comes before the stop break position EP. May be.

<Modification>
Although one embodiment of the present invention has been described above, the present invention can be implemented in various modes as follows.

  In the above embodiment, the description has been given of the case where the present invention is applied to an electronic keyboard instrument, but the present invention is also applicable to an electronic musical instrument other than the electronic keyboard instrument. That is, an electronic musical instrument using performance operators other than the keyboard 70 may be used. For example, the performance operator may be a string of a guitar synthesizer (guitar type controller) or a key of a wind synthesizer (wind instrument type controller).

  Further, the present invention can also be applied as a sound signal generation device that does not have a performance operator. In this case, performance control data (performance event) may be input via the interface 80. The performance control data may be input via an interface 80 from a device having a configuration corresponding to the keyboard 70, or from a sequencer that outputs performance control data (performance event) based on the control data via the interface 80. It may be entered. Furthermore, the present invention can be applied to a configuration that does not include the sound source unit 60 and the keyboard 70 as a performance recording device having the above performance recording function. In this case, it can be said that the electronic keyboard instrument 1 includes a playback control device having the performance recording function 100.

  The present invention can also be applied as an application executed to realize the performance recording function 100 in a personal computer, a smartphone, a tablet, or the like. This application may be provided to the user as a program. This program may be provided by being recorded on a recording medium such as an optical disk or a semiconductor memory, or may be provided by being downloaded via a network.

  The above recording start instruction, recording stop instruction, and the like have been input by an operation on the operation unit 20, but may be input from an external device via the interface 80.

  In the above embodiment, when performance control data is recorded, a so-called quantizing function that aligns with a grid of preset intervals may be realized. For example, the grid interval is set by the length of a sixteenth note (1/16 of one beat) or the like.

DESCRIPTION OF SYMBOLS 1 ... Electronic keyboard instrument, 10 ... Control part, 20 ... Operation part, 30 ... Display part, 40 ... Speaker, 50 ... Memory | storage part, 60 ... Sound source part, 70 ... Keyboard, 80 ... Interface, 100 ... Performance recording function, 101 ... Acquisition part, 103 ... Progress part, 105 ... Instruction reception part, 107 ... Recording part, 109 ... Setting part, 111 ... Specification part, 113 ... Reproduction control part

Claims (6)

An acquisition unit for acquiring pronunciation information for generating sound;
A progression unit for controlling the progression of time in the device;
An instruction receiving unit that receives instructions to start and stop recording of the pronunciation information by operating the operation unit;
In a recording period determined based on the recording start and recording stop instructions, a recording unit that records the pronunciation information acquired by the acquisition unit according to the progress of the time;
A setting unit for setting a break position that is periodically repeated in the recording period;
Among the repeated break positions, a specifying unit that identifies a stop break position corresponding to the recording stop instruction timing;
A reproduction control unit that controls to repeatedly reproduce the sound corresponding to the pronunciation information recorded in the recording period after the instruction to stop the recording and after the elapse of the stop break position, according to the progress of the time;
A performance recording apparatus comprising: The specifying unit specifies the next break position as the stop break position when the time from the last break position to the recording stop instruction time is equal to or longer than a predetermined time,
2. The performance recording apparatus according to claim 1, wherein the reproduction control unit starts the reproduction from the start point of the recording period after waiting for the stop delimiter position to be reached. The pronunciation information includes information indicating a sound generation instruction generated in the sound source unit and information indicating a mute instruction corresponding to the sound generation instruction,
If the information indicating the mute instruction corresponding to the sound generation instruction is not acquired by the acquisition unit by the timing of the recording stop instruction, the recording unit may stop from the recording stop instruction to the stop delimiter position. 2. The performance recording apparatus according to claim 1, wherein information indicating the mute instruction is recorded as acquired at any timing of the period.   The performance recording apparatus according to claim 1, wherein the setting unit receives a setting of a cycle of the separation position.   When an instruction to start recording and stop recording is received during playback by the playback control unit, the recording unit displays the pronunciation information acquired by the acquisition unit in a period corresponding to the instruction according to the progress of the time. The performance recording apparatus according to claim 1, further recording. Computer
An acquisition unit for acquiring pronunciation information for generating sound;
A progression unit for controlling the progression of time in the device;
An instruction receiving unit that receives instructions to start and stop recording of the pronunciation information by operating the operation unit;
In a recording period determined based on the recording start and recording stop instructions, a recording unit that records the pronunciation information acquired by the acquisition unit according to the progress of the time;
A setting unit for setting a break position that is periodically repeated in the recording period;
Among the repeated break positions, a specifying unit that identifies a stop break position corresponding to the recording stop instruction timing;
A playback control unit that controls to repeatedly play back the sound corresponding to the pronunciation information recorded in the recording period after the recording stop instruction and after the stop break position has elapsed, according to the progress of the time,
Program to function as.

Images