JP2011197663A - Electronic musical instrument and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic musical instrument in which a sound volume of a sound data is adjusted to an appropriate level that is balanced with a player of the musical instrument when performing according to reproduction of the sound data.SOLUTION: In the electronic musical instrument, a performance sound data Da are recorded in a sound file F2 as a file sound data Df2 (sound volume adjustment [2]), and a performance record identifier for indicating that it is the sound file F2 of a performance sound record type is attached when recording. Moreover, a sound file F1 of another type is obtained from outside, and while sound data Df1 and Df2 in either of the sound files F1 and F2 are reproduced, both are performed at the same time. At that time, when a reproduction object is identified to be the sound data Df2 of the sound file F2 of the performance record type by a performance recording identifier (sound volume adjustment [3]), a sound volume of the sound data Df2 is made to be different from that of the sound file F1 of another type (sound volume adjustment [1]).

Description

  The present invention relates to an electronic musical instrument that can be played in accordance with reproduction of audio data.

2. Description of the Related Art Conventionally, electronic musical instruments have been proposed that can play along with voice data, that is, audio data while playing it. For example, in the electronic music apparatus of Patent Document 1, performance data is corrected using music data of music corresponding to reproduced audio data, and a musical sound is generated. Thus, when performing along with the playback of audio data, there can be typical scenes as follows:
(1) The user rips a CD (compact disc) personally (converts CD data into a file consisting of audio data) or purchases and acquires audio data consisting of professional performances via a network. And by playing while playing the audio data obtained, you can enjoy the feeling of playing with a professional.
(2) The user himself / herself first records the left-hand part as audio data for the music composed of both-hand parts, and then practice the performance of the right-hand part in accordance with the reproduction of the recorded left-hand part audio data. Alternatively, for a song composed of an accompaniment part and a melody part, the user first plays the accompaniment part and records it as voice data, and then practice or enjoy the performance of the melody part along with the playback of the recorded accompaniment part voice data. Sloppy.

  In the case of (1), the audio data is subjected to normalization processing so that it can be viewed with a sufficient dynamic range. Here, the normalizing process is to increase the amplitude of the acoustic waveform by a certain amount over the entire song, just to the upper limit, so that the dynamic range that can be taken by the number of quantization bits (16 bits for CD) can be used effectively. . In the case of (2), if the recording level is too high when recording, the amplitude of the acoustic waveform may be clipped at the upper limit of the dynamic range.

  As described above, the audio data reproduced together with the performance is raised to the upper limit in (1), and the recording level is lowered in (2). Accordingly, when the audio data of (1) and the audio data of (2) are switched and reproduced, and the electronic musical instrument is played together with the reproduction of the audio data, the balance with the musical instrument performance sound is changed every time the audio data is switched. The overall volume must be adjusted. Moreover, if the adjustment is made incorrectly, the sound data is emitted at an excessive volume, which may damage the electronic musical instrument and the human ear.

  Also, depending on the electronic musical instrument, for example, an electronic organ such as an electronic organ that has a weak attack and specially produces a continuous sound, the volume of the sound data by the performance is generally large and the time variation is small, and the dynamic range is small. The sound data is recorded at a sufficient volume level up to the limit, and the sound data recorded by the user's own performance is designed to be generated at a sufficiently large volume. In such an electronic musical instrument, if the volume balance between the audio data of the performance and the ripped audio data is adjusted well, if the audio data of the performance and the audio data recording the user performance are played simultaneously, the latter The volume of audio data may be too high and the volume balance may be felt poor.

JP 2005-274851 A

  In order to eliminate such inconveniences, the present invention adjusts the volume of the reproduced audio data to an appropriate level balanced with the musical instrument performance sound when performing along with the reproduction of the audio data. It is an object to provide an electronic musical instrument that can be used.

  According to the main feature of the present invention, performance sound generation means (9A; A4, B6) for generating performance sound data (Da) in response to a performance operation, and generation of performance sound data (Da) by the performance sound generation means (B6) ) At the same time, the file audio reproduction means (B5 → B7) for reproducing the audio data (Df2, Df1) recorded in the audio file (F2, F1) and the audio data (Df2, Df1) reproduced by the file audio reproduction means And an identifier detection means (B2) for detecting a performance recording identifier (performance recording identifiers in the first and second formats: for example, “} {”, “.v116”) from the audio file (F2, F1) in which When the performance recording identifier (“} {”, “.v116”) is detected by the identifier detecting means (B2 = YES), the audio data reproduced by the file audio reproducing means is recorded. And an electronic musical instrument comprising reproduction volume control means (9C; B3.fwdarw.B7) for making the volume of the data (Df2) different from that when not detected (B2 = NO), and a computer functioning as an electronic musical instrument. In addition, a performance sound generation step (A4, B6) for generating performance sound data (Da) in accordance with the performance operation, and a performance sound data (Da) generation (B6) in the performance sound generation step, simultaneously with the sound file ( A sound file in which the sound data (Df2, Df1) recorded in the file sound reproduction step (B5 → B7) for reproducing the sound data (Df2, Df1) recorded in F2, F1) and the sound data (Df2, Df1) reproduced in the file sound reproduction step are recorded. An identifier detection step (B2) for detecting a performance recording identifier (“} {”, “.v116”) from (F2, F1) and an identifier detection step When the recording identifier (“} {”, “.v116”) is detected (B2 = YES), the volume of the audio data (Df2) reproduced in the file audio reproduction step is not detected (B2 = NO). And a playback volume control step (B3 → B7) to be executed are provided. Note that the parentheses are reference symbols, terms and the like of the examples added for convenience of understanding, and the same applies to the following.

  The electronic musical instrument according to the present invention further sequentially records the performance sound data (Da → Df) generated by the performance sound generation means (9A; A4, B6) and also records the performance record identifiers (“} {”, “ .V116 ") are added to create audio file (F2), and audio file creation means (A1 to A5) are provided, and the file audio reproduction means (B5 → B7) is generated by the audio file creation means (A1 to A5). The voice data (Df2, Df1) recorded in the created voice file (F2) or the voice file (F1) acquired from the outside can be reproduced (claim 2).

  In the electronic musical instrument according to the present invention, the reproduction sound volume control means (B3 → B7) detects the performance record identifier (first format performance record identifier: eg, “} {”) by the identifier detection means (B2) (B2). = YES), the volume of the audio data (Df2) reproduced by the file audio reproducing means (B5 → B7) is changed by a predetermined amount compared to the case where it is not detected (B2 = NO). be able to.

  In the electronic musical instrument according to the present invention, a predetermined volume adjustment is performed for the performance record identifier (second format performance record identifier: “.v116”, for example) given to the sound file (F2) by the sound file creation means (A1 to A5). When the performance recording identifier (“.v116”) is detected by the identifier detection means (B2), the playback volume control means (B3 → B7) includes the volume (“116”). The volume of the audio data (Df2) reproduced by (B7) is changed by the volume adjustment amount (“116”) rather than when it is not detected (B2 = NO).

  The electronic musical instrument according to the present invention further assigns a performance record identifier (“} {”, “.v116”) to the audio file (F1) to which the performance record identifier is not assigned, and the performance record identifier (“}). The audio file (F2, F1) to which {"," .v116 ") has already been added is configured to include identifier adding means (C12, C27) for changing the performance recording identifier (claim 5). Can do.

  In the electronic musical instrument according to the present invention, the performance recording identifier (“} {”, “.v116”) given to the audio file (F2, F1) is one or more given to the file name of the audio file (F2, F1). [Claim 6].

  In the electronic musical instrument according to the main feature of the present invention (claims 1 and 7), the performance sound data (Da) is generated by the performance sound generation means (9A) in accordance with the performance operation (6) (B6) and at the same time, the sound file When the audio data (Df2, Df1) recorded in (F2, F1) is reproduced (B5 → B7), performance recording is performed from the audio file (F2, F1) in which the reproduced audio data (Df2, Df1) is recorded. An identifier (first or second format performance record identifier: for example, “} {”, “.v116”) is detected (B2), and a performance record identifier (“} {”, “.v116”) is detected. In this case (B2 = YES), the volume of the audio data (Df2) is different from the case where the volume is not detected (B2 = NO) (9C; B3 → B7). For example, if a performance record identifier ("} {") called the first format exists and is identified as an audio file recording a performance of an electronic musical instrument, such an audio file is like an audio file acquired from the outside. When the performance record identifier does not exist, the volume level is automatically increased and corrected before playback. Therefore, according to the present invention, when performing along with the reproduction of the audio data, the volume of the reproduced audio data can be adjusted to an appropriate volume balanced with the musical instrument performance sound.

  In the electronic musical instrument according to the present invention, the performance sound data (Da → Df) generated by the performance sound generation means (9A) is sequentially recorded and a performance record identifier (“} {”, “.v116”) is given. Then, the audio file (F2) is created (A1 to A5), and the performance audio data (Da) is generated (B6) and the audio data (Df2, Df1) is reproduced at the same time (B5 → B7). The audio data (Df2, Df1) recorded in the created audio file (F2) or the audio file (F1) acquired from the outside is configured to be reproduced (claim 2). That is, the performance sound (Da) by the electronic musical instrument can be recorded as an audio file (F2). When recording (A1 to A5), a performance record identifier (“} {”) is assigned, It is possible to identify the sound file (F2) in which the performance sound is recorded by the electronic musical instrument (A1). Also, the audio file (F1) can be acquired from the outside, and the audio data (Df2, Df1) recorded in the audio file (F2) in which the performance sound is recorded or in the audio file (F1) acquired from the outside is reproduced. However, the electronic musical instrument can be played at the same time (B6). Therefore, according to the present invention, when playing along with the reproduction of the audio data recorded in the audio file created by the electronic musical instrument or the audio file acquired from the outside, the volume of the reproduced audio data is set to The volume can be adjusted to an appropriate level that is balanced with the sound.

  Further, in the electronic musical instrument according to the present invention, due to the presence of the performance recording identifier (performance recording identifier of the first format: for example, “} {”), the file in which the audio data (Df2) to be reproduced is recorded is a sound recorded with the performance sound When the file (F2) is identified (B2 = YES), the playback volume of the audio data (Df2) is compared with that of the audio file (F1) having no performance record identifier (B2 = NO). The electronic musical instrument is configured to be changed by a predetermined amount (B3 → B7) when designing the electronic musical instrument (Claim 3). For example, when identifying an audio file that records the performance of an electronic musical instrument, the volume level of such an audio file is automatically increased (+12 dB) and corrected as compared with an externally acquired audio file. Play with. Therefore, according to the present invention, the performance record identifier can be used as a mark for changing the volume, and the volume of the reproduced audio data can be adjusted to an appropriate predetermined value.

  In the electronic musical instrument according to the present invention, the performance recording identifier (second format performance recording identifier: eg “.v116”) given to the audio file (F2) includes a predetermined volume adjustment amount (eg “116”). (A1 to A5), when such a performance recording identifier (“.v116”) is detected, the volume of the reproduced audio data (Df2) is set to a volume adjustment amount (“B2 = NO”) than when it is not detected (B2 = NO). 116 ″) is changed (B3 → B7). Therefore, according to the present invention, performances can be performed among a plurality of types of electronic musical instruments that have different dynamic ranges depending on the model, or that differ in the degree of volume adjustment so that they are not clipped when recording performance sounds. Even when the voice data recording the sound is exchanged, the volume of the reproduced voice data can be adjusted to an appropriate value according to the volume adjustment amount indicated by the performance record identifier. In addition, the volume adjustment amount can reflect the result of readjustment of the volume by the user operation of the volume operator provided in the electronic musical instrument.

  In the electronic musical instrument according to the present invention, a performance record identifier (“} {”, “.v116”) is newly assigned to the audio file (F1) to which the performance record identifier is not assigned, or the performance record identifier (“ } For the audio file (F2, F1) to which {"," .v116 ") has already been assigned, the performance recording identifier is changed (C12, C27) (claim 5). For example, when a musical instrument performance is recorded by another recording device (such as a PC) to create an audio file (F1), the recording level is lowered as in the case of (1) described above. However, by importing the audio file (F1) into an electronic musical instrument, adding a predetermined character to the file name and adding a performance recording identifier ("} {"), it is equivalent to the audio file (F2) recording the performance sound. Treat as a thing. In addition, when an audio file (F1) is recorded with an electronic musical instrument of another model recorded at a predetermined level corresponding to the model and the performance record identifier is embedded, the audio file (F1) is created as an electronic musical instrument. The performance recording identifier embedded in the file and the performance recording identifier embedded in the file is changed to the performance recording identifier (".v116") corresponding to the electronic musical instrument, so that the audio data is reproduced with a reproduction volume suitable for the dynamic range of the electronic musical instrument. To do. Therefore, according to the present invention, an audio file created by another recording device or another type of electronic musical instrument can be corrected to an appropriate volume by attaching a performance record identifier corresponding to the electronic musical instrument. Can do.

  In the electronic musical instrument according to the present invention, the performance record identifier is determined by whether or not one or more characters (“} {”, “.v116”) are added to the file name of the audio file. For example, when recording a performance sound in an audio file, a predetermined character (“} {”, “.v11”) is added to the name of the audio file as a performance recording identifier, thereby recording an audio file ( F2) can be identified by the file name. Therefore, according to the present invention, even if a performance recording identifier is made visible and an audio file is copied to another playback device (such as a PC) and played back, it is a file that records an instrument performance, You can see if it is a typical file.

It is a hardware block diagram of the electronic musical instrument by one Example of this invention. It is a schematic diagram for demonstrating the volume adjustment example by one Example of this invention. It is a flowchart of the main process by one Example of this invention. It is a flowchart of the file recording process by one Example of this invention. It is a flowchart of the file reproduction | regeneration performance process by one Example of this invention. It is a flowchart of the file identifier provision process 1 by one Example (1st Embodiment) of this invention. It is a flowchart of the file identifier provision process 2 by one Example (2nd Embodiment) of this invention. It is explanatory drawing of the file format used by one Example of this invention.

[Hardware configuration example]
FIG. 1 is a hardware configuration example of an electronic musical instrument according to an embodiment of the present invention. An electronic musical instrument according to an embodiment of the present invention includes a central processing unit (CPU) 1, a timer 2, a random access memory (RAM) 3, a read only memory (ROM) 4, an external storage slot 5, a performance operation detection unit 6, and a setting. The operation detection unit 7, the display unit 8, the audio data processing unit 9, the network interface (I / F) 10, the MIDI interface (I / F) 11, and the like are provided. Connected.

  The CPU 1 that controls the entire apparatus constitutes a control processing unit that executes various processes according to various control programs together with the timer 2, RAM 3 and ROM 4, and uses the clock by the timer 2 according to various control programs including an audio data processing program. Various processes including voice data processing are executed. The RAM 3 is used as a work area for temporarily storing various data necessary for these processes, and the ROM 4 stores various control programs and various necessary data.

  A portable storage medium 5M is detachable from the external storage slot 5, and functions as an external storage device together with the storage medium 5M. The external storage slot 5 and the storage medium 5M can be constituted by, for example, a USB memory incorporating a USB interface (I / F) and a flash memory. In this case, the audio data can be stored in the USB memory 5M as an audio file, for example, in the WAV format. The portable USB memory can store audio files generated by other recording devices, and the audio files stored in the USB memory can be used by this electronic musical instrument. The generated audio file can be used by other playback devices via the USB memory. Of course, another type of storage device using a portable storage medium such as a CD (compact disk) or a DVD (digital multipurpose disk) may be used. However, in the following description, a USB memory is used as the storage medium 5M.

  The performance operation detection unit 6 detects the operation of a performance operator such as a keyboard, introduces performance data corresponding to the detected performance operation to the control processing unit, and the setting operation detection unit 7 operates a switch or knob (volume operation). The operation content for the setting operation element such as “child” is detected, and corresponding setting information is introduced into the control processing unit. The display unit 8 controls lighting / display contents of various display elements and a display (display device) such as an LCD according to a command from the CPU 1 and performs display assistance for various operations.

  The audio data processing unit 9 is also called an acoustic signal processing unit, and includes a sound source effect unit 9A, a recording volume adjustment unit 9B, a reproduction volume adjustment unit 9C, an addition unit 9D, and the like. The sound source effect unit 9A is an audio representing a musical sound waveform based on performance data corresponding to a performance operation detected by the performance operation detection unit 6 or automatic performance data stored in a predetermined storage means in accordance with a command from the CPU 1. The musical tone data in the format is generated, and further, a predetermined effect is given to the generated musical tone data, and is output to the recording volume adjusting unit 9B or the adding unit 9D as performance audio data Da.

  The recording volume adjusting unit 9B adjusts the dynamics (volume) of the performance audio data Da by a predetermined amount when storing the performance audio data Da generated by the sound source effect unit 9A as file audio data Df in the USB memory 5M. . Also, the reproduction volume adjustment unit 9C, when reproducing desired file audio data Df from the USB memory 5M, adjusts the dynamics (volume) of the file audio data Df according to the reproduction volume control signal instructed from the CPU 1 via the bus 12. The adjusted file audio data (adjusted file audio data) Db is supplied to the adder 9D.

  The adding unit 9D adds the performance audio data Da from the sound source effect unit 9A and the adjusted file audio data Db from the reproduction volume adjusting unit 9C, and the added output audio data Dc is connected to the audio data processing unit 9. The sound system 13 can be supplied. The sound system 13 includes a D / A conversion unit, an amplifier, and a speaker, and generates a musical sound based on the output audio data Dc from the audio data processing unit 9.

  A network such as the Internet or a local area network (LAN) is connected to the network I / F 10, and various data such as setting data and MIDI performance data (automatic performance data) are downloaded from the outside, and are installed in the external storage slot 5. The electronic musical instrument can be stored in a storage medium 5M such as a USB memory. Similarly to this electronic musical instrument, an external MIDI device having a MIDI music information processing function is connected to the MIDII / F11, and MIDI performance data can be exchanged through the I / F11.

[Processing of voice data (audio data)]
An electronic musical instrument according to an embodiment of the present invention can be operated according to an audio data processing program. For example, an external device such as a personal computer (PC) was created by ripping from a CD, downloading an audio file with general music audio data recorded over the network, recording audio signals, etc. After the audio file is stored in the USB memory, the USB memory is mounted as the storage medium 5M in the external storage slot 5 of the electronic musical instrument, so that the electronic musical instrument reads the audio file stored in the USB memory 5M. Can be played. In this electronic musical instrument, the sound data generated by the sound source effect unit 9A of the sound data processing unit 9, that is, the performance sound data Da, is prepared in the USB memory 5M after adjusting the dynamics by the recording volume adjusting function 9B. You can record to audio files in order. Here, the audio file acquired from the outside like the former is called the first type (normal type) audio file F1, and the audio file recorded with the electronic musical instrument like the latter is the second type (performance). Recording type) audio file F2. The audio data (audio data) Df recorded in the audio file in the USB memory is generally called file audio data, and the file audio data Df in the first and second type audio files F1, F2 are respectively It is called first and second type file audio data Df1, Df2.

  Here, when recording the performance audio data Da in a file, an identifier called “performance recording identifier” is given to the file name of the audio file and used to identify the type of the audio file. That is, the performance record identifier is given to the second type audio file F2 in which the performance is recorded, which is useful for adjusting the volume during reproduction. Further, even for the first type audio file F1, the audio data whose dynamics are adjusted in the same manner as in the case of recording the performance audio data Da, such as audio data recorded by an external device (such as a PC). Can be converted into a second type audio file F2 by changing the file name and assigning a performance recording identifier.

  In this electronic musical instrument, a performance recording identifier of the first format composed of a predetermined fixed character or character string such as “} {” is used as a performance recording identifier. The first embodiment that operates to switch the reproduction volume in the reproduction volume adjustment unit 9C depending on the presence or absence of an identifier, and a variable value (for example, “.v116”) to change the volume as a performance recording identifier, for example, The playback volume adjusting unit 9C uses a second-format performance record identifier including a predetermined character string including “116”) and changes the volume change value (“116”) included in the second-format performance record identifier. There is a second embodiment that operates so as to change the playback volume of the video. In addition, when there is a difference between the two embodiments below, the operation in the first embodiment will be mainly described.

  The file audio data Df recorded in the audio file in the USB memory can be reproduced, and the volume can be adjusted by the reproduction volume adjustment function 9C to generate the adjusted file audio data Db. The sound data Db and the musical sound data generated by the sound source effect unit 9A, that is, the performance sound data Da are added (9D), and the sound can be emitted through the sound system 13. Here, the dynamics, that is, the volume of the file audio data Df to be reproduced is an appropriate value corresponding to the type (Df1, Df2) of the file audio data Df according to the reproduction volume control signal from the CPU 1 according to the presence or absence of the performance recording identifier. Can be adjusted.

  FIG. 2 is a schematic diagram for explaining an example of volume adjustment according to one embodiment of the present invention. First, “Volume adjustment [1]” in FIG. 2 (1) is performed when an external device such as a PC performs ripping from a CD or playing a first type audio file F1 purchased via a network at the same time. A schematic diagram of the volume adjustment is shown. In this case, the first type file audio data Df1 is recorded at a volume just below the dynamic range in the first type audio file F1 stored in the USB memory 5M by ripping from the CD or purchasing via the network. When playing such a first type audio file F1 simultaneously while playing, the CPU 1 detects that there is no performance record identifier in the audio file F1, and adjusts the playback volume of the audio data processing unit 9 based on the playback volume control signal. The volume of the file audio data Df1 read from the audio file F1 is adjusted by controlling the unit 9C so that the balance with the performance audio data Da from the sound source effect unit 9A is appropriate.

  For example, the dynamic range of the sound data output from the sound source effect unit 9A, that is, the performance sound data Da is represented by 22 bits and 132 dB, and the sound data read from the first type sound file F1, that is, the first type. The dynamic range of the file audio data Df1 is represented by 16 bits and 96 dB. As a result of the volume adjustment by the reproduction volume adjustment unit 9C, the volume of the first type file audio data Df1 is increased, and the dynamic range thereof is converted into audio data Db1 represented by 20 bits and 120 dB. The audio data Db1 after the volume adjustment of the first type file audio data Df1 by the reproduction volume adjustment unit 9C is called the first type adjusted file audio data and supplied to the addition unit 9D.

  Thus, in the volume adjustment [1], the reproduction volume adjustment section 9C shifts up the 16-bit file audio data Df1 read from the first type audio file F1 by 4 bits (sets “0” in the lower order). Add 4 bits) to expand the dynamic range from 16 bits (96 dB) to 20 bits (120 dB). Note that the shift up in the volume adjustment [1] is called normal volume setting, and the volume is increased by 2 bits (12 dB) compared to the case of the second type audio file F2 in the volume adjustment [3] described later in (3). The level is small.

  The adding unit 9D performs an addition process of the performance audio data Da from the sound source effect unit 9A and the first type adjusted file audio data Db1 from the reproduction volume adjusting unit 9C. In this addition processing, the 22 bits of the performance audio data Da and the 20 bits of the first type adjusted file audio data Db1 are added with their digits aligned from the lower bits, and the addition result is 22 bits. That is, 20 bits of the adjusted file audio data Db1 are not shifted up by 2 bits and added. A dynamic range of 22 bits and 132 dB of output sound data Dc obtained by adding the performance sound data Da by performance and the adjusted file sound data Db1 by file reproduction of the first type is output from the adder 9D to the sound system 13. The sound system 13 emits the performance sound and the first type file sound from the speaker based on the output sound data Dc, and the user can hear these two sounds mixed together.

  “Volume adjustment [2]” in FIG. 2B is a schematic diagram of volume adjustment performed when the performance sound generation result by the electronic musical instrument is recorded in an audio file. In this case, the performance audio data Da output from the sound source effect unit 9A of the audio data processing unit 9 has a dynamic range of 22 bits and 132 dB, for example, as described above. The dynamic range of the audio data Da is shifted down to 16 bits and 96 dB. That is, in the volume adjustment by the recording volume adjustment unit 9B, the lower 6 bits of the performance audio data Da are discarded, and the dynamic range of 22 bits (132 dB) is narrowed to 16 bits (96 dB).

  The performance audio data Da whose volume has been adjusted in this way is recorded in the file as the second type file audio data Df2, and the file including the file audio data Df2 has a performance recording identifier appended to the file name. It is stored in the USB memory 5M as the second type audio file F2. When the file audio data Df2 in which the volume of the performance audio data Da is adjusted as described above is stored as the second type audio file F2, as described in the next volume adjustment [3], this second type file audio is stored. The data Df2 can be played simultaneously while being reproduced later.

  “Volume adjustment [3]” in FIG. 2 (3) is created when the second type audio file F2 in which the performance sound is recorded is played simultaneously, that is, as described in the volume adjustment [2]. FIG. 4 is a schematic diagram of volume adjustment performed when the audio file F2 is played and played at the same time. As described above, in the second type audio file F2 in the USB memory 5M in which the performance sound is recorded, the file audio data Df is recorded with a volume lower than the dynamic range. The CPU 1 detects that there is a performance recording identifier in the audio file F2, and controls the reproduction volume adjustment unit 9C of the audio data processing unit 9 by the reproduction volume control signal, and the performance audio data Da from the sound source effect unit 9A. Is adjusted so that the volume of the second type file audio data Df2 read from the audio file F2 is adjusted.

  As described above, the dynamic range of the performance sound data Da output from the sound source effect unit is 22 bits and 132 dB. However, the second type of file sound data Df2 read from the sound file F2 in which the performance sound is recorded is used. The dynamic range is 16 bits and 96 dB. The file audio data Df2 is subjected to volume adjustment by the reproduction volume adjustment unit 9c, the dynamic range is converted to 22 bits and 132 dB, and the volume level is raised. As a result, the second type of adjusted file audio data Db2 with increased volume is generated and supplied to the adder 9D. Thus, in the volume adjustment [3], the reproduction volume adjustment unit 9C shifts up the 16-bit file audio data Df2 read from the second type audio file F2 by 6 bits (sets “0” in the lower order). 6-bit addition), the dynamic range is expanded from 16 bits (96 dB) to 22 bits (132 dB). In other words, the upshift in the volume adjustment [3] has a volume level that is 2 bits (12 dB) higher than the normal volume setting by the volume adjustment [2].

  The adding unit 9D performs an addition process of the performance audio data Da from the sound source effect unit 9A and the second type adjusted file audio data Db2 from the reproduction volume adjustment unit 9C. In this addition process, the performance audio data Da is added. The 22 bits and the 22 bits of the second type adjusted file audio data Db2 are simply added. Then, the output audio data Dc of dynamic range = 22 bits and 132 dB obtained by adding the performance audio data Da by the performance and the adjusted file audio data Db2 by the second type file reproduction is output from the adder 9D to the sound system 13. Then, based on the output sound data Dc, the performance sound and the second type file sound are emitted from the sound system 13, and the user can hear these two sounds mixed.

  In the above description, the case where the volume of the second type file audio data Df2 is increased by a predetermined amount has been described, but the volume may be decreased. That is, depending on the electronic musical instrument, the sound volume of the performance sound data Da is generally large and there is little temporal variation, and the sound of the second type file sound is generated with a sufficiently large sound volume while sounding at a sufficient sound volume level to the limit of the dynamic range. Some generate data Df2. As this type of electronic musical instrument, for example, an electronic organ that has a weak attack feeling and specially produces a continuous sound can be cited. In such an electronic musical instrument, if the volume balance between the performance audio data Da and the reproduction of the first type file audio data Df1 by ripping is adjusted precisely by the reproduction volume adjustment unit 9C, the performance audio data Da and the second When the type file audio data Df2 is sounded at the same time, the volume of the second type file audio data Df2 may be too high and the volume balance may be felt poor. Accordingly, in such a case, the volume of the second type file audio data Df2 is lowered by a predetermined amount.

  In FIG. 2, the dynamic range that can be taken by the performance audio data Da and the dynamic range that can be taken by the output audio data Dc are 22 bits (132 dB), but these dynamic ranges may differ depending on the model of the electronic musical instrument. Accordingly, the adjustment amount of the reproduction volume adjustment unit 9C and the dynamic range of the adjusted file audio data Db1 of the first type as the adjustment result, the adjustment amount of the recording volume adjustment unit 9B and the second type as the adjustment result thereof. The dynamic range of the adjusted file audio data Df2 may vary depending on the model of the electronic musical instrument. In this way, multiple types of electronic musical instruments can be used, and each electronic musical instrument may have a different dynamic range, or the degree of adjusting the volume so that it will not clip when recording a performance sound. In this case, it is necessary to adjust the volume without failing even if file audio data is exchanged between different models.

  For this reason, in the second embodiment, which will be described in detail later, when the second type file audio data Df2 recorded in the audio file with the second format performance record identifier (for example, “.v116”) is reproduced. Is a volume change amount (for example, +12 dB) corresponding to a variable value (for example, “116”) included in the performance recording identifier of the second format, rather than in the case of the first type audio file F1 (volume adjustment [1]). ) Only configured to change the playback volume. As a result, as described above, appropriate volume adjustment can be performed even when voice data in which performance sounds are recorded between different models is exchanged.

  As described above, in the electronic musical instrument according to the embodiment of the present invention, the performance sound data Da can be recorded as the file sound data Df2 in the sound file F2 (volume adjustment [2]). A performance record identifier indicating the recording type audio file F2 is assigned. Also, another type of audio file F1 can be acquired from the outside, and the audio data Df1, Df2 in any type of audio file F1, F2 can be played and played simultaneously. At this time, if the performance record identifier identifies that the playback target is the audio data Df2 of the audio file F2 of the performance sound recording type (volume adjustment [3]), the volume of the audio data Df2 is set to another type of audio file. Different from the case of F1 (volume adjustment [1]) (Df2 → Db2), the volume balance between the reproduced sound (Db2) and the musical instrument performance sound (Da) is made appropriate. For example, in the first embodiment, if there is a performance record identifier (“} {”) in the first format, the volume of the audio data Df2 is set to a predetermined amount (in the case of another type of audio file F1 (volume adjustment [1])). For example, in the second embodiment, if there is a performance record identifier (for example, “.v116”) in the second format, the volume of the audio data Df2 is set to another type of audio file F1 (volume adjustment). [1]) is changed by a volume change amount (for example, +12 dB) corresponding to a variable value (for example, “116”) included in the identifier.

[Example of processing flow]
3 to 7 are various flowcharts relating to audio data processing executed in the electronic musical instrument according to one embodiment of the present invention, and FIG. 3 is a flowchart showing main processing (common to both the first and second embodiments). Indicates. In FIG. 3, when the main process is started by turning on the power of the electronic musical instrument, the CPU 1 distributes the process according to the user's process item designation operation on the setting operation detection unit 7 in the first step M0. This operation is performed by a switch, a rotary encoder or the like provided as a setting operator in the setting operation detection unit 7 of the electronic musical instrument, and an operation for designating a predetermined processing item is detected by the setting operation detection unit 7, and the bus 12 It is introduced to CPU1 via. Then, the CPU 1 distributes the processing based on the introduced setting operation content, and at this time, appropriately displays operation assistance information useful for user operation on the display of the display unit 8.

  Here, when “file recording” is designated as the processing item, the process proceeds to step MA, where (A) a performance recording process (referred to as a file recording process) is performed, and “file reproduction performance” is designated. Then, the process proceeds to step MB (B) to perform a process of performing along with file reproduction (referred to as a file reproduction performance process). When a process to be assigned (referred to as a file identifier giving process) is performed and other process items are designated, the process proceeds to step MD (D) and other processes are performed. For other processing, the performance operator of the performance operation detector 6 is simply played and the tone generator 9A generates musical tone data, or the automatic tone generator 9A generates automatic musical tone data based on the automatic performance data. Various kinds of processing such as setting the tone color in the sound source effect unit 9A, setting the MIDII / F11, and the like. included. When any one of the designated processes is completed in any one of steps MA to MD, the process returns to step M0 to wait for the user's process item designation operation, and the processes in steps M0 to MD described above are performed according to the operation. repeat.

  FIG. 4 is a flowchart (common to both the first and second embodiments) showing a file recording process (a process for recording a performance in a file) performed in step MA of the main process (FIG. 3). This process is the main process. Called from and executed. In FIG. 4, when the file recording process starts, the CPU 1 generates a file name that does not overlap with the file names of other files already stored in the USB memory 5M in the first step A1, and at that time, the file name Include a performance record identifier before the extension. In the first embodiment, a predetermined character string that serves as a mark for changing the volume: For example, “} {” is used as a performance recording identifier. For example, first, “Wav001} {. Wav” is set as a file name candidate. If a file with the name is already stored in the USB memory, “Wav002} {. Wav” is a candidate, and if there is still a file with the same name, “Wav003} {. Wav” is a candidate and the same name file is stored. Decide on the name of the file to create a candidate for when there is not.

  In the subsequent step A2, a file having an empty voice data portion is generated. For example, in the case of a WAV format file (see FIG. 7), although the fmt chunk contains information, the data chunk generates an empty file. In the next step A3, recording start processing is performed. That is, when the user operates a predetermined setting operator (switch) to instruct the start of recording, the setting operation detection unit 7 detects the instruction operation and introduces it to the CPU 1 via the bus 12. Based on this, the CPU 1 starts recording the performance sound data Da.

  Next, in step A4, the CPU 1 sends the corresponding performance data to the audio data processing unit 9 via the bus 13 in accordance with the user's performance operation with respect to a performance operator such as a keyboard in the performance operation detection unit 6 to generate a performance sound. Instruct. For example, a pitch is designated by performance data, and an instruction is given to start or stop sounding at that pitch. As a result, in the sound data processing unit 9, musical tone data is generated according to the performance data by the sound source effect unit 9A, and performance sound data Da having an effect applied thereto is generated and passed to the adding unit 9D. The instruction is reflected in the performance sound generation. Further, in order to record the performance sound data Da, the sound source effect unit 9A generates the performance sound data Da one after another at a predetermined sampling period, and the lower 6 bits are truncated according to the recording sound volume control instruction from the CPU 1. The data are sequentially stored in a buffer (not shown) prepared in the audio data processing unit 9.

  In the next step A5, the performance sound data Da is sequentially read out from the sound data processing unit 9 and added to the sound data portion of the file generated in the USB memory 5M. That is, the CPU 1 adds the performance audio data Da accumulated in the buffer in the audio data processing unit 9 to a file in the USB memory at a predetermined cycle (for example, 10 msec). As processing for starting such sequential recording, buffer preparation, timer interrupt, or setting of a hardware interrupt for notifying that the buffer has been consumed are performed.

  Then, in step A6, it is determined whether or not a file recording process (process for recording a performance in a file) has been completed. If no termination operation has been performed (A6 = NO), the process returns to step A4 and returns to step A4. Repeat the process of ~ A5. When the end operation is performed (A6 = YES), the file recording process is ended and the process returns to step M0 of the main process. That is, when the user operates a predetermined setting operator (switch) to instruct the end of recording, the setting operation detection unit 7 detects this end instruction operation and introduces it to the CPU 1 via the bus 12, and the CPU 1 is based on that. End the file recording process.

  FIG. 5 is a flowchart (common to the first and second embodiments) showing a file playback performance process (a process performed together with file playback) performed in step MB of the main process (FIG. 3). Called from the process and executed. In FIG. 5, when the file playback performance process starts, the CPU 1 selects a file to be played back in accordance with a user operation in the first step B1. For example, the CPU 1 examines a file in the USB memory, displays an audio file that can be reproduced together with the performance on the display, and allows the user to select it. When the user operates a predetermined setting operator (switch) to display the files in order and selects a desired audio file, the operation is detected by the setting operation detection unit 7 and introduced into the CPU 1 via the bus 12.

  In the next step B2, it is determined whether or not there is a performance recording identifier before the extension of the file name of the selected file. If there is a performance recording identifier (B2 = YES), the process proceeds to step B3. A setting for changing the volume compared to the normal volume setting is performed on the reproduction volume adjustment unit 9C of the audio data processing unit 9. Here, in the first embodiment, when it is determined that there is a performance recording identifier: “} {” (B2 = YES), in step B3, a predetermined value set in advance when designing the electronic musical instrument is set. For example, the setting is made to increase 12 dB from the normal volume setting. That is, in step B3 (when there is a performance recording identifier), a setting is made to shift up by 6 bits (adding “0” to the lower order by 6 bits). On the other hand, when there is no performance record identifier (B2 = NO), the process proceeds to step B4, and the normal volume setting is performed on the reproduction volume adjusting unit 9C. That is, in step B4 (when there is no performance recording identifier), the setting is made to shift up by 4 bits (adding “0” to the lower 4 bits).

  After the volume setting in step B3 or step B4, playback start processing is performed in step B5. That is, when the user operates a predetermined setting operator (switch) to instruct the start of reproduction of the selected audio file, the setting operation detection unit 7 detects the operation and introduces it to the CPU 1 via the bus 12. The CPU 1 starts reproduction of the file audio data Df based on an instruction operation for starting reproduction.

  In the next step B6, as in step A4 of the file recording process, the corresponding performance data is sent to the audio data processing unit 9 in accordance with the user's performance operation with respect to a performance operator such as a keyboard in the performance operation detection unit 6, Instructs performance sound generation. As a result, in the sound data processing section 9, audio tone data is generated according to the performance data by the sound source effect section 9A, and performance sound data Da to which an effect is appropriately applied is generated and passed to the adding section 9D.

  Further, in the next step B7, the file audio data Df is sequentially read out from the selected audio file and transferred to the audio data processing unit. More specifically, when reproducing the file audio data Df, the CPU 1 reads the file audio data Df for the cycle from the file in the USB memory 5M at a predetermined cycle (for example, 10 msec), not shown. Write to the buffer in the audio data processing unit 9. In the audio data processing unit 9, the file audio data Df written in the buffer is processed one sample at a predetermined sampling period, and the file audio data is processed by the reproduction volume adjusting unit 9C according to the setting in step B3 or step B4. Volume level conversion is performed on Df, and adjusted file audio data Db is generated and passed to the adder 9D. As a process for starting the reproduction of such file audio data, a buffer timer interrupt or a hardware interrupt for notifying that the buffer has been consumed is set.

  In step B8, it is determined whether or not an end operation of the file playback performance process (a process of performing along with the file playback) has been performed. If the end operation has not been performed (B8 = NO), the process returns to step B6. The processes in steps B6 to B8 are repeated. When the end operation is performed (B8 = YES), the file reproduction performance process is ended and the process returns to step M0 of the main process. That is, when the user operates a predetermined setting operator (switch) to instruct the end of the playback performance, the setting operation detection unit 7 detects this end instruction operation and introduces it to the CPU 1 via the bus 12. Based on this, the file playback performance process is terminated.

  FIG. 6 is a flowchart (applied in the first embodiment) representing a file identifier assigning process (a process for assigning an identifier to a file) 1 performed in step MC of the main process (FIG. 3) according to the first embodiment. The process is called from the main process and executed. In FIG. 6, when the file identifier assigning process 1 is started, the CPU 1 causes the user to select a desired file from the USB memory 5M in the first step C11, and in the next step C12, it is selected according to the user operation. Change the file name of the selected file. For example, the first type audio file F1 can be converted into a second type audio file F2 by adding a performance recording identifier: “} {” before the extension of the file name.

  Further, in step C13, the selected file is an audio file, and the performance recording identifier: “} {” is not present before the extension of the original (before change) file name and has been edited (after change). It is determined whether or not there is a performance recording identifier: “} {” before the file name extension. In other words, the file whose file name is to be changed includes a file containing various setting operation data, so the presence or absence of the performance record identifier is confirmed after narrowing down to the audio file. Whether or not the file is an audio file is determined by whether or not the file extension represents an audio file, such as “.wav”. Here, when an audio file having no performance record identifier before the file name extension before change and having a performance record identifier before the file name extension after change is selected, for example, the file name before change is If “xxxxxxxx.wav” and the file name after the change is “xxxxxxxx} {. Wav” (C13 = YES), the process proceeds to step C14. In step C14, a notice that this audio file is played at a high volume level is displayed on the display of the display unit 8 for a predetermined time (for example, 3.5 seconds), and then the file identifier is assigned. The process 1 is ended, and the process returns to the main process step M0.

  Conversely, if the selected file is not an audio file, the file name before the change has a performance record identifier, or the file name after the change does not have a performance record identifier (C13 = NO), a warning is issued. Immediately, the file identifier assigning process 1 is terminated and the process returns to the main process step M0. For example, if the performance recording identifier: “} {” is deleted from the file name in step C12, the volume is reduced and there is no danger, so no caution text is issued.

  In step B2 in the file playback performance process (B) of FIG. 5B, it is determined whether or not there is a performance recording identifier before the file name extension. It may be determined whether or not there is a performance recording identifier at a predetermined position from the beginning (for example, the seventh and eighth characters). Alternatively, the determination may be made based on whether or not the performance record identifier is included in the file name regardless of the position.

Second Embodiment
In the first embodiment, the volume is switched depending on the presence or absence of the performance record identifier of the first format recorded in the audio file. However, in the second embodiment, the performance of the second format including a variable value to be changed in volume is used. The recording identifier is embedded in the audio file, and the sound volume is changed based on the value. Hereinafter, a characteristic operation in the second embodiment using the performance recording identifier of the second format including the volume change value will be described.

  As already described in the explanation of FIG. 2, there are a plurality of types of electronic musical instruments that can be used, each having a different dynamic range, and a degree of adjusting the volume so as not to be clipped when recording a performance sound. There may be. Therefore, in the second embodiment, by including a variable volume change value in the performance record identifier, even when the voice data recording the performance sound is exchanged between different types of models, there is no appropriate failure. Volume adjustment can be performed.

  In the second embodiment, in particular, in the file name generation process with the performance recording identifier in step A1 in the file recording process of FIG. 4, for example, “.v116”, a period (“.”) And a variable three-digit number ( For example, a performance record identifier of the second format including “116”) is embedded in the file name. In this case, the generated file name is, for example, “xxxxxxxx.v116.wav”. In the performance recording identifier of the second format, the three-digit number represents a decimal value, and the value “100” means “no adjustment”, that is, “the same amount as the first type file audio data Df1”. The volume change value can be expressed in the range of “000” to “127” at 0.75 dB / step.

  For example, when reproducing the second type file audio data Df2 of the file name: “xxxxxxxx.v116.wav”, the volume is adjusted by the same amount as the first type file audio data Df1 having no performance record identifier. That is, as shown in FIG. 2 (1), the reproduction volume adjustment 9C is shifted up by 4 bits, and the dynamic range is changed from 16 bits (96 dB) to 20 bits (120 dB).

  Here, the performance recording identifier of the second format is “.v116” means that when the second type file audio data Df2 is reproduced, the volume is adjusted by an amount corresponding to “.v116”. Is instructing. In other words, it means that the volume is raised from the first type file audio data Df1 by 0.75 dB × (116−100) step = 12 dB. In other words, the amount of up-shift corresponds to 6 dB per bit, so in addition to the up-shift of 4 bits of the first type file audio data Df1, up to 2 bits (= 12 ÷ 6), a total of 6 bits. Shift up.

  Further, in the second embodiment, when it is determined that there is a performance recording identifier (for example, “.v116”) in the second format as a result of the identifier detection process (B2) in the file reproduction process of FIG. 5 (B2 = YES). In the volume setting process in step B3, the playback volume adjustment unit 9C is set in accordance with the volume change designated value obtained from the character string representing the volume change value included in the performance recording identifier. For example, as described above, when the character string of the performance recording identifier of the second type file audio data Df2 is “.v116”, 12 dB up is read from this character string, and the shift up is set. This string value is maintained unless the file name is rewritten.

  In the second embodiment, a file identifier assigning process (a process for assigning an identifier to a file) 2 is further performed in step MC of the main process (FIG. 3), and a desired volume adjustment amount is embedded in the file as a performance recording identifier. . In this file identifier assigning process, as described below, a desired performance recording identifier can be assigned to a file by reflecting the volume adjustment for the playback volume adjusting unit 9C in the performance recording identifier. It is also possible to edit the text of the file name one character at a time using a setting operator on the panel provided in the detection unit 7.

  FIG. 7 is a flowchart (applied in the second embodiment) showing an example of the file identifier assigning process 2. This file identifier assigning process 2 is called and executed from the main process, listens to the sound produced by the performance operation while playing the file, and plays the file sound in the playback volume adjusting unit 9C with the volume changing knob in the setting operator. By determining the volume value of the data Df, the performance record identifier can be corrected to a desired value.

  In FIG. 7, when the file identifier assigning process 2 starts, the CPU 1 causes the user to select a desired file from the USB memory 5M in the first step C21, and performs a reproduction start process in the next step C22. That is, another task is instructed to start the process of sequentially and repeatedly reproducing the file, and then the other task continues to reproduce. Next, in step C23, the operation value of the setting operator (knob) is acquired. In the next step C24, the reproduction volume adjustment unit 9C is instructed to change the volume according to the acquired knob operation value. Further, in step C25, the sound source effect unit 9A is instructed to generate a musical sound in accordance with the user's performance operation, and then the process proceeds to step C26.

  In step C26, it is determined whether or not a sound volume value determination operation has been performed with a predetermined setting operator on the panel. When the determination operation is not performed (C26 = NO), the process returns to step C23, and steps C23 to C26 are performed. Repeat the process. Here, when a desired volume setting value is obtained for the file audio data Df and the volume value determination operation is performed by the user (C26 = YES), the process proceeds to step C27, and the volume setting value when the determination operation is performed. A performance record identifier having a character string corresponding to is generated and newly assigned to the selected file. Alternatively, if a performance record identifier is already recorded in the selected file, the generated performance record identifier is replaced with the existing performance record identifier. Then, after the new performance record identifier assigning process in step C27, the file identifier assigning process 2 is terminated and the process returns to step M0 of the main process.

[Another embodiment of the audio file format]
In the embodiments of the first and second formats described above, an identifier (performance) for identifying whether the sound file F2 is the second type created by recording the performance sound of the electronic musical instrument and instructing the volume change. As a recording identifier, specific characters such as “} {” and “.v116” are added to the file name. Instead, such type is identified and a volume change is instructed. Therefore, it can be configured to embed data for performance recording as a performance recording identifier. In this case, the file name cannot be visually recognized on a PC or the like, and the performance record identifier cannot be assigned or taken by changing the file name. Whether or not a performance record identifier is attached to a file or adding or taking a performance record identifier is performed by an electronic musical instrument having a dedicated function for that purpose. Hereinafter, the embodiment in the case where the performance record identifier is embedded in the file will be described more specifically. In the following description, the WAV format is assumed as a typical file format, but other formats may be used.

  FIG. 8 is an explanatory diagram of the file format used in this case, taking the second type audio file F2 as an example. In the WAV format, as shown in FIG. 8, various data are divided into a plurality of chunks and stored, and a tag (short character string) indicating the type of the chunk is arranged at the top of each chunk. Here, the fmt chunk CHf and the data chunk CHd are essential, and the audio data (Df2) itself is stored in the data chunk CHd after the tag indicating the data chunk. In the fmt chunk CHf, following the tag indicating the fmt chunk, information on the format of the audio data Df2 contained in the data chunk CHd, such as the number of channels, the sampling rate, the number of bits per sample, and so on. Is stored in the fmt chunk. In the first and second format embodiments described above, the audio file F2 for recording the performance sound is a WAV format file composed of the fmt chunk CHf and the data chunk CHd, and the file name is specified as a performance recording identifier. It can be realized by adding characters: “} {”, “.v116”, and the like.

  On the other hand, when the performance record identifier is embedded in the file, as shown by a broken line in FIG. 8, a manufacturer-specific chunk CHm for storing manufacturer-specific information is provided, and the manufacturer-specific chunk CHm has a head. The tag indicating the manufacturer-specific chunk is arranged, and the performance record identifiers of the first and second formats are recorded, indicating that the performance sound (Df2) is recorded and instructed to change the volume. Used for Note that this chunk can be ignored by a playback apparatus that does not need to refer to the manufacturer-specific chunk CHm.

Even when implemented in this way, the playback volume can be switched depending on the presence or absence of the performance recording identifier, as in the first embodiment described above. However, the following points are different from the first embodiment described above.
(A) File recording process: When generating a file name that does not overlap with a file on an external storage medium (USB memory) (A1), a performance recording identifier: “} {” is included before the file name extension. I do not. When creating an audio file (A3, A5), a file composed of an fmt chunk, an empty data chunk, and a manufacturer-specific chunk is generated, and a performance record indicating that the performance sound is recorded in the manufacturer-specific chunk Write the identifier.
(B) File playback performance processing: In step B2, instead of determining whether there is an identifier before the extension of the file name of the selected file, an “identifier is not included in the selected file” Judgment is there?
(C) File identifier assigning process 1: In step C12, instead of “change file name according to user operation”, “insert performance record identifier of manufacturer-specific chunk including performance record identifier according to user operation” Or, “Delete”. Then, in step C13, it is determined whether or not a performance record identifier has been newly inserted.

Alternatively, the playback volume can be switched according to the variable volume change value included in the performance record identifier, as in the second embodiment. However, the second embodiment is different from the second embodiment described above.
(A) File recording process: When generating a file name that does not overlap with a file on an external storage medium (USB memory) (A1), the performance recording identifier: “.v116” is included before the file name extension. I do not. When creating an audio file (A3, A5), a file composed of an fmt chunk, an empty data chunk, and a manufacturer-specific chunk is generated, and a performance recording identifier (for example, 12 dB) indicating the volume adjustment amount is generated in the manufacturer-specific chunk. (Character string type data “v116” meaning to increase the volume) is written.
(B) File playback performance processing: In step B2, instead of determining whether there is an identifier before the extension of the file name of the selected file, an “identifier is not included in the selected file” Judgment is there?
(C) File identifier assignment process 2: In step C27, instead of assigning or replacing an identifier to a file name, an identifier is assigned or replaced to a manufacturer-specific chunk in the file.

[Various Embodiments]
The preferred embodiment of the present invention has been described above with reference to the drawings. However, this is merely an example, and the present invention can be variously modified without departing from the spirit of the invention. For example, in the embodiment, it has been described that ripping or downloading of an audio file from a network is performed by an external device such as a personal computer (PC). Instead, the electronic musical instrument itself rips or downloads an audio file. It is also possible to provide a function and perform the operation with the electronic musical instrument itself, and store the audio file in the USB memory (5M) attached to the external storage slot 5.

  In the embodiment, one device is provided with both functions of file generation and reproduction, but there may be a device provided with one of the functions.

Da performance sound data (musical sound data in audio format generated by the sound source effect unit 9A),
F1, F2 first and second type audio files,
Df: Df1, Df2 file audio data (numbers indicate the first and second types),
Db: Db1, Db2 Adjusted file audio data (numbers indicate the first and second types), Dc Output audio data output from the adder 9D to the sound system 13.

Claims (7)

Performance sound generation means for generating performance sound data in response to a performance operation;
A file audio reproduction means for reproducing the audio data recorded in the audio file simultaneously with the generation of the performance audio data by the performance audio generation means;
Identifier detecting means for detecting a performance recording identifier from an audio file in which audio data reproduced by the file audio reproducing means is recorded;
And a playback volume control means for making the volume of the audio data reproduced by the file audio reproduction means different from that when not detected when the performance recording identifier is detected by the identifier detection means. Musical instrument. further,
The performance sound data generated by the performance sound generation means is sequentially recorded, and includes a sound file creation means for creating a sound file by giving a performance record identifier,
2. The electronic musical instrument according to claim 1, wherein the file audio reproduction unit reproduces audio data recorded in the audio file created by the audio file creation unit or an audio file acquired from the outside.   The reproduction volume control means changes the volume of the audio data reproduced by the file audio reproduction means by a predetermined amount when the performance recording identifier is detected by the identifier detection means as compared with the case where it is not detected. The electronic musical instrument according to claim 1 or 2. The performance record identifier given to the audio file by the audio file creation means includes a predetermined volume adjustment amount,
The reproduction volume control means changes the volume of the audio data reproduced by the file audio reproduction means by the volume adjustment amount when the performance recording identifier is detected by the identifier detection means than when it is not detected. The electronic musical instrument according to claim 2. further,
A performance recording identifier is newly assigned to an audio file to which a performance recording identifier is not assigned, and an identifier providing means for changing the performance recording identifier is provided for an audio file to which a performance recording identifier has already been assigned. The electronic musical instrument according to claim 1.   The electronic musical instrument according to claim 1, wherein the performance recording identifier assigned to the audio file is composed of one or more characters added to the file name of the audio file. To a computer that functions as an electronic musical instrument,
A performance sound generation step for generating performance sound data in accordance with the performance operation;
A file audio reproduction step for reproducing the audio data recorded in the audio file simultaneously with the generation of the performance audio data in the performance audio generation step;
An identifier detecting step for detecting a performance recording identifier from the audio file in which the audio data reproduced in the file audio reproducing step is recorded;
A program for executing a procedure comprising a reproduction volume control step for differentiating the volume of audio data to be reproduced in the file audio reproduction step when the performance recording identifier is detected in the identifier detection step.

Images