JP2003131659A - Musical sound generating device and musical sound generating method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a musical sound generating device and musical sound generating method which can reproduce a musical composition according to the contents of an image displayed on the screen. SOLUTION: The musical composition is reproduced according to the display attribute of an image displayed on the screen and hence the musical composition which matches the image displayed on the screen can be played since the piece of music to be reproduced is selected or musical sound parameters are set according to the brightness, chromaticity or dynamic variation of the image data displayed on the screen and the performance data of the specified piece of music or selected piece of music are reproduced on the basis of the set musical sound parameter.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a musical tone generating apparatus and a musical tone generating method suitable for use in a communication terminal such as a mobile phone.

[0002]

2. Description of the Related Art As is well known, a communication terminal such as a mobile phone is equipped with a tone generating device for generating an incoming melody. This kind of musical tone generating apparatus is known as, for example, a waveform memory reading method, and is configured to implement a ringing melody generating function of polyphonically generating PCM waveform data contained in itself according to performance data to generate various ringing melody. ing.

[0003]

In communication terminals such as mobile phones in recent years, in addition to the above-described incoming melody generating function,
In many cases, it also has an image display function for displaying a received image mail or an image waiting for an incoming call. by the way,
The tone generator installed in the communication terminal is not linked with the image display function. Therefore, for example, when a received image mail is displayed on the screen, the music that matches the image is played, etc. There is a problem that it is not possible to reproduce the music according to the content. Therefore, the present invention has been made in view of such circumstances, and an object thereof is to provide a musical tone generating device and a musical tone generating method capable of reproducing a music piece according to the image content displayed on the screen.

[0004]

In order to achieve the above object, in the invention described in claim 1, performance data storage means for storing performance data of a plurality of songs and display attributes of images displayed on the screen are set. Detecting means for detecting, parameter generating means for generating a musical tone parameter for designating a musical tone forming mode in accordance with the display attribute detected by the detecting means, and performance data of a plurality of songs stored in the performance data storing means. Of the musical tone parameters generated by the parameter generating means from the musical piece selection means for selecting the musical performance data of the musical piece corresponding to the display attribute detected by the detecting means, and the musical performance data of the musical piece selected by the musical piece selecting means. A musical sound forming means for reproducing a musical sound by reproducing the musical sound according to the above method.

According to the second aspect of the present invention, a detection process for detecting the display attribute of the image displayed on the screen and a tone parameter for designating the tone formation mode in accordance with the display attribute detected in the detection process. And a song selection process of selecting the performance data of the song corresponding to the display attribute detected in the detection process from the performance data of a plurality of songs stored in advance in the performance data storage means, The music data forming process is characterized in that the performance data of the music selected in the music selecting process is reproduced in a manner according to the music parameter generated in the parameter generating process to form a musical sound.

According to the third aspect of the invention, the performance data storage means for storing the performance data of a plurality of songs, the detection means for detecting the brightness and chromaticity of the image displayed on the screen, and the detection means. Depending on the luminance and chromaticity
Parameter generating means for generating a musical tone parameter for designating a musical tone forming mode, and a piece of music corresponding to the luminance and chromaticity detected by the detecting means from the performance data of a plurality of pieces of music stored in the performance data storage means. Music selection means for selecting performance data; and music tone forming means for reproducing the performance data of the music selected by the music selection means in a manner in accordance with the tone parameters generated by the parameter generation means to form a tone. It is characterized by having.

According to the fourth aspect of the invention, a musical tone forming mode is set in accordance with the detection process of detecting the luminance and chromaticity of the image displayed on the screen and the luminance and chromaticity detected in the detection process. A parameter generation process for generating a specified tone parameter and performance data of a song corresponding to the luminance and chromaticity detected in the detection process are selected from performance data of a plurality of songs stored in advance in the performance data storage means. And a musical tone forming step of reproducing musical performance data of the musical piece selected in the musical piece selecting step in a manner according to the musical tone parameter generated in the parameter generating step to form a musical tone. It is characterized by

According to a fifth aspect of the present invention, performance data storage means for storing performance data of a plurality of songs, detection means for detecting dynamic changes and brightness of a moving image displayed on the screen, and this detection means. Parameter generating means for generating a musical tone parameter for designating a musical tone forming mode according to the dynamic change and the brightness detected by the detecting means, and the detecting means from the performance data of a plurality of pieces of music stored in the performance data storing means. The musical piece selection means for selecting the musical performance data of the musical piece corresponding to the dynamic change and the brightness detected by the musical piece and the musical performance data of the musical piece selected by the musical piece selection means are in accordance with the tone parameters generated by the parameter generating means. And a musical sound forming means for reproducing a musical sound to form a musical sound.

According to a sixth aspect of the present invention, a detection process for detecting a dynamic change and brightness of a moving image displayed on a screen, and a musical sound according to the dynamic change and brightness detected in this detection process. A parameter generation process for generating a tone parameter for designating a formation mode, and a song corresponding to the dynamic change and the brightness detected in the detection process from the performance data of a plurality of songs stored in advance in the performance data storage means. A music selection process for selecting performance data, and a musical tone formation process for reproducing musical performance data of the musical composition selected in this music selection process in a manner according to the musical tone parameter generated in the parameter generating process to form a musical tone. And is provided.

In the present invention, when the display attribute of the image displayed on the screen is detected, the performance data of the music corresponding to this display attribute is selected from the performance data of a plurality of music, and
According to the detected display attribute, a musical tone parameter designating a musical tone formation mode is generated, and musical data is formed by reproducing the performance data of the selected song in a mode according to the generated musical tone parameter. It is possible to reproduce a music piece according to the image content. That is, it is possible to play a music piece that matches the image displayed on the screen.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION A mobile phone equipped with a musical sound generating device according to an embodiment of the present invention will be described below as an example, and this will be described with reference to the drawings. (1) First Embodiment Configuration FIG. 1 is a block diagram showing the overall configuration of a first embodiment according to the present invention. In this figure, 1 is a transmission / reception unit 1
It is a communication unit composed of a and the communication control unit 1b. The transmission / reception unit 1a of the communication unit 1 has an antenna AN.
The received signal input via T is mixed with a local oscillation signal of a predetermined frequency output from the PLL synthesizer to obtain I
An F signal is frequency-converted, and the data string demodulated is supplied to the communication control unit 1b. Also, the transceiver unit 1
The a performs phase modulation on the transmission data supplied from the communication control unit 1b, mixes the local oscillation signal and frequency-converts the transmission signal, then amplifies the power and radiates from the antenna ANT.

The communication control unit 1b of the communication section 1 extracts data for one slot from the received data supplied by the transmission / reception unit 1a at a predetermined timing, extracts a unique word (synchronization signal) from this data, and extracts the frame. After the sync signal is generated and the control data section and the voice data section are descrambled, CP is applied to the control data.
It is sent to U6 and the audio data is sent to the audio processing unit 2.
Further, the communication control unit 1b adds control data and the like to the audio data supplied from the audio processing unit 2, and
A unique word or the like is added after scrambling or the like to create transmission data for one slot, which is inserted into a predetermined slot in a frame at a predetermined timing and transmitted to the transmission / reception unit 1a.

The voice processing section 2 is composed of a speech codec and a PCM codec. The speech codec performs digital data compression / expansion processing, and is composed of a receiving side and a transmitting side. The receiving side decodes (expands) the ADPCM audio signal supplied from the communication control unit 1b described above into a PCM audio signal.
And output. On the other hand, the transmitting side encodes (compresses) the PCM audio signal supplied from the PCM codec into an ADPCM audio signal and sends it to the communication control unit 1b. P
The CM codec performs analog / digital conversion processing, and D / A converts the PCM audio signal supplied from the above speech codec or the musical sound data supplied from the sound source 10 described later into an analog signal and produces a sound from the speaker 3. Let Further, the PCM codec A / D-converts the analog audio signal input from the microphone 4 into a PCM signal and supplies the PCM signal to the speech codec.

Reference numeral 5 denotes a key input section 5 including an input key switch for inputting a telephone number or a character string of a call destination, an on-hook / off-hook switch, a volume switch for changing a voice output, etc., and a switch corresponding to each switch operation. Fire an event. A switch event generated in response to each switch operation is captured in response to a key scan of the CPU 6 described later. The CPU 6 controls the operation of each part of the apparatus by executing a corresponding control program based on the operation signal fetched in response to the key scanning, and the processing operation related to the gist of the present invention will be described later.

Reference numeral 7 denotes a ROM for storing various data in addition to various control programs executed by the CPU 6.
The various data stored in the ROM 7 are, for example, various image data displayed on the screen of the display unit 9 as a standby image, performance data and data of music reproduced in correspondence with the image data displayed on the screen of the display unit 9. Refers to a table, etc.

The performance data stored in the ROM 7 is composed of melody data representing the pitch and sounding timing of each note forming the melody of a piece of music, rhythm pattern data as an accompaniment note of this melody data, and the like. Also, ROM
A parameter setting table PST1 is provided in the data table stored in FIG. The parameter setting table PST1 is a table for reading out musical tone parameters that respectively specify the tone color, rhythm pattern, tempo, volume and effect type of a music piece to be reproduced according to the brightness rank of the image displayed on the display unit 9. As will be described later on the basis of the above, the music corresponding to the image content displayed on the screen can be reproduced.

Reference numeral 8 is a RAM having a work area and a data area. The work area of the RAM 8 temporarily stores various register / flag data, and the data area stores, for example, received mail and address book. The display unit 9 is composed of an LCD panel or the like, and displays various data supplied from the CPU 6 on the screen. Reference numeral 10 is a sound source configured by a well-known waveform memory reading method. The sound source 10 is provided with a plurality of sound generation channels capable of simultaneous sound generation, and each performance data assigned to each sound generation track is sequentially read from the ROM 6 in synchronization with the reproduction tempo, and the read performance data is supplied from the CPU 6. The data is output as musical tone data that is synthesized according to the musical tone parameters. This musical sound data is stored in the voice processing unit 2 described above.
Speaker 3 after D / A conversion by PCM codec
Is played as a musical sound.

Operation Next, the operation of the first embodiment will be described with reference to FIGS. When the image display function is activated by the operation of the key input unit 5 when the power is turned on and the mobile phone is in the idle state, the CPU 6 executes the musical tone generation processing routine shown in FIG. 2 and proceeds to step SA1. Proceed. At step SA1, image data to be displayed on the screen and performance data of a music piece to be reproduced are designated. Here, the image data designated for display refers to, for example, image data that is stored in the ROM 7 and forms a standby screen, or image data that is attached to a received mail stored in the data area of the RAM 8.

Next, at step SA2, the color information for each dot forming the designated image data is divided into luminance and chromaticity, and the luminance of each dot unit is averaged to obtain an image luminance rank K.
Determine the IDO. This image brightness rank KIDO is
For example, "0 (darkest)", "1 (dark)", "2 (normal)", "3 (bright)" and "4 (brightest)".
The five stages are shown. When the image brightness rank KIDO is determined, the CPU 6 based on the parameter setting table PST1 stored in the ROM 7, according to the image brightness rank KIDO, the "timbre", "rhythm pattern" of the music to be reproduced,
Set the tone parameters that specify "tempo", "volume", and "effect type", respectively.

That is, in step SA3, the parameter setting table PST is set according to the image brightness rank KIDO.
The tone color number is read from 1 and stored in the register TIMBRE. Next, at step SA4, the rhythm pattern number is read from the parameter setting table PST1 in accordance with the image brightness rank KIDO and the register RHYTH is read.
Store in M. Then, in step SA5, the parameter setting table PS is set according to the image brightness rank KIDO.
The tempo value is read from T1 and stored in the register TEMPO. In step SA6, the image brightness rank KID
According to O, the volume value (velocity) is read from the parameter setting table PST1 and stored in the register VEL. In step SA7, a value designating reverb as an effect type is read from the parameter setting table PST1 according to the image brightness rank KIDO, and the register RE is read.
Store in BERB.

Thus, the parameter setting table PST
When the tone parameters corresponding to the image brightness rank KIDO are set with reference to 1, the CPU 6 advances the processing to step SA8 shown in FIG. 3 to determine whether all the tone parameters have been properly set. If it is not properly set, the determination result is “NO”, the routine is completed without any processing and the processing is returned to the main routine not shown. However, if it is properly set, The determination result is “YES”, and the process proceeds to the next step SA9. In step SA9, the tone generator 10 is instructed to generate the musical performance data designated for reproduction in step SA1 as a musical tone corresponding to the musical tone parameter set through steps SA3 to SA7. As a result, the display unit 9
Music corresponding to the image brightness displayed on the screen is reproduced.

Next, in step SA10, it is judged whether or not there is a brightness change in the image data designated for display. If there is a brightness change, the judgment result is "YES", and the process is returned to step SA2. Then, the image brightness rank is determined again, and a musical tone corresponding to the musical tone parameter changed accordingly is generated. On the other hand, if there is no change in brightness, the determination result is "NO", the flow proceeds to step SA11, and it is determined whether or not there is image data to be next designated for display. If there is image data to be displayed next, the determination result is "YE
S ”, and the process returns to step SA2 to reproduce the music according to the image data. On the other hand, if there is no image data to be displayed next, step SA12
Then, the program continues to be reproduced until the performance data of the currently reproduced music reaches the end of the music, and when the performance data reaches the end of the music, the sound source 10 is instructed to mute and this routine is completed.

(2) Second Embodiment In the above-described first embodiment, the image brightness rank KIDO of the image data to be displayed on the screen is determined, and the corresponding musical tone is selected from the parameter setting table PST1 according to the determined brightness rank. By reading the parameters and reproducing the performance data of the designated music based on the musical tone parameters, the music corresponding to the image content displayed on the screen is reproduced. On the other hand, in the second embodiment, not only the luminance rank but also the chromaticity rank is taken into consideration to select the music piece to be reproduced, and the musical tone parameters used when reproducing the selected music piece are the luminance rank and the chromaticity rank. It is characterized by setting according to and.

Therefore, in the second embodiment, the song selection table KST1 and the parameter setting table PS are stored in the ROM 7.
T2 is provided. The song selection table KST1 is, for example, assigned a mellow song when the brightness is bright and the chromaticity is light, and a song matching the brightness / chromaticity in advance such as a rock tone song when the brightness is bright and the chromaticity is dark. It is a table for reading the performance data of the corresponding piece of music using the luminance rank and the chromaticity rank as read addresses. Further, the parameter setting table PST2 is a table for reading out a timbre, a rhythm pattern, a tempo, a volume and an effect type which are associated with luminance / chromaticity in advance according to the determined luminance rank and chromaticity rank.

The operation of the second embodiment using the music piece selection table KST1 and the parameter setting table PST2 will be described below with reference to FIGS. 4 and 5.
First, when you receive an email with image data attached, CP
U6 executes the musical tone generation processing routine according to the second embodiment of FIG. 4, and advances the processing to step SB1. Step SB
In 1, the image data attached to the received mail is stored in the RAM 8
Store in the data area of. Then, step SB2
, The color information for each dot forming the image data stored in the data area of the RAM 8 is divided into luminance and chromaticity,
The luminance of each dot unit is averaged to determine the luminance rank KIDO, and in the subsequent step SB3, the chromaticity of each dot unit is averaged to determine the chromaticity rank SIKIDO.

Luminance rank KIDO and chromaticity rank SI
When KIDO is determined, the CPU 6 advances the process to step SB4, and the song selection table KS stored in the ROM 7
Luminance rank KIDO and chromaticity rank SI with reference to T
Select the song number corresponding to KIDO. Next, in steps SB5 to SB9, based on the parameter setting table PST2 stored in the ROM 7, the image brightness rank KI
Tone parameters, "rhythm pattern", "tempo", "volume" and "effect type" corresponding to DO and chromaticity rank SIKIDO are respectively set.

When the musical tone parameters corresponding to the image luminance rank KIDO and the chromaticity rank SIKIDO are set in this way, the CPU 6 advances the processing to step SB10 to determine whether all the musical tone parameters have been set properly. If not properly set, the determination result is “NO”, the routine is completed without any processing, and the processing is returned to the main routine (not shown).
If properly set, the determination result is “YES”, and the process proceeds to the next Step SB11. Step S
In B11, the tone generator 10 is instructed to generate the performance data of the song selected in step SB4 described above as a musical tone corresponding to the musical tone parameter set through steps SB5 to SB9. As a result, the music corresponding to the brightness and chromaticity of the image displayed on the display unit 9 is reproduced.

Next, in step SB12, it is determined whether or not the image data has a change in luminance and chromaticity. If there is a change in either luminance or chromaticity, the result of the determination is "YES", and The process is returned to step SB2, the luminance rank / chromaticity rank is determined again, and the song changed in accordance with the determination is reproduced in accordance with the tone parameter corresponding to the determined luminance rank / chromaticity rank. On the other hand, if there is no change in luminance / chromaticity, the determination result is "NO", the flow proceeds to step SB13, and it is determined whether or not there is image data to be displayed next. If there is image data to be displayed next, the determination result is "YES", and the process is returned to step SB2 to reproduce the music corresponding to the image data. On the other hand, if there is no image data to be displayed next, the process proceeds to step SB14, and the performance data of the currently reproduced music is continuously reproduced until the end of the music is reached. To mute and complete this routine.

(3) Third Embodiment In the second embodiment described above, a music piece to be reproduced is selected according to the luminance and chromaticity of still image data, and a tone parameter used when reproducing the selected music piece. Is set according to the luminance and the chromaticity, so that the music corresponding to the luminance and the chromaticity of the image is reproduced. On the other hand, in the third embodiment, the music to be reproduced is selected according to the dynamic change and the brightness of the moving image data, and the musical tone parameters used when reproducing the selected music are the dynamic change and the brightness. It is characterized in that the music corresponding to the dynamic change of the image and the brightness is reproduced by setting according to.

Therefore, in the third embodiment, the song selection table KST2 and the parameter setting table PS are stored in the ROM 7.
T3 is provided. The song selection table KST2 is, for example, a hard rock tone song when the amount of dynamic change is large and the chromaticity is dark, and a ballad tone song when the amount of dynamic change is small and the chromaticity is pale. / Is a table in which a song that matches the brightness is assigned, and the performance data of the corresponding song is read using the dynamic change amount and the brightness rank as the read address. In addition, the parameter setting table PST2
The table is a table for reading out a timbre, a rhythm pattern, a tempo, a sound volume, and an effect type that are associated with the dynamic change amount / luminance in advance according to the determined dynamic change amount and image brightness rank. It should be noted that the dynamic change amount of the moving image mentioned here refers to the amount of movement of the dot area that is displaced in the image per unit time.

The operation of the third embodiment using the song selection table KST2 and the parameter setting table PST3 will be described below with reference to FIGS. 6 and 7.
First, when you receive an email with moving image data attached, C
PU6 executes the musical sound generation processing routine according to the third embodiment shown in FIG. 6, and advances the processing to step SC1. At step SC1, the moving image data attached to the received mail is stored in the data area of the RAM 8. Then, the process proceeds to step SC2 to determine the brightness rank KIDO by averaging the brightness of each dot forming the moving image data stored in the data area of the RAM 8, and in the subsequent step SC3, the dot region displaced in the image is extracted. Then, the amount that it moves per unit time is detected as the dynamic change amount MOVE.

Luminance rank KIDO and dynamic change amount MO
When VE is determined, the CPU 6 advances the processing to step SC4, and the song selection table KST2 stored in the ROM 7
Luminance brightness KIDO and dynamic change amount MOV
Select the song number corresponding to E. Then step SC
In 5 to SC9, based on the parameter setting table PST3 stored in the ROM 7, "timbre", "rhythm pattern", "tempo", "volume" and "effect type" corresponding to the luminance rank KIDO and the dynamic change amount MOVE.
Set the tone parameter that specifies each.

When the musical tone parameters corresponding to the luminance rank KIDO and the dynamic change amount MOVE are set in this way, the CPU 6 advances the processing to step SC10 to judge whether or not all the musical tone parameters have been properly set.
If not set properly, the judgment result is "NO".
Then, the routine is completed without any processing and the processing is returned to the main routine (not shown). However, if properly set, the determination result is "YES", and the processing proceeds to the next step SC11. . In step SC11,
The tone generator 10 is instructed to generate the musical performance data of the musical composition selected in step SC4 as a musical tone corresponding to the musical tone parameter set through steps SC5 to SC9. Thereby, the music corresponding to the dynamic change amount and the brightness of the moving image displayed on the display unit 9 is reproduced.

Next, at step SC12, it is judged whether or not there is a dynamic change and a brightness change in the moving image data, and if any of them is changed, the judgment result is "YES".
Then, the processing is returned to the above-mentioned step SC2, the dynamic change amount / luminance rank is determined again, and the music changed in accordance with this is determined by the musical tone corresponding to the redetermined dynamic change amount / luminance rank. Play according to the parameters. On the other hand, if there is no change, the determination result is “NO”, and step SC1
In step 3, it is determined whether or not there is moving image data to be displayed next. If there is moving image data to be displayed next, the determination result is "YES", and the process returns to step SC2 to reproduce the music corresponding to the moving image data. On the other hand, when there is no moving image data to be displayed next, the determination result is “NO”, the flow proceeds to step SC14, and the performance data of the currently reproduced music is continuously reproduced until the end of the music, and the performance is continued. When the data reaches the end of the song, the sound source 10 is instructed to mute the sound and the routine is completed.

As described above, according to the present invention, the music to be reproduced is selected and the tone parameters are set according to the brightness, chromaticity or dynamic change amount of the image data displayed on the screen. Since the performance data of the specified song or the selected song is played based on the musical tone parameters, it is possible to play the song according to the display attribute of the image displayed on the screen. You can play music that matches the displayed image. In the first to third embodiments described above, the luminance, chromaticity or dynamic change amount of image data is extracted.
However, the present invention is not limited to this, and the tone generation mode may be controlled by extracting, for example, the hue representing the hue and the saturation (purity) representing the vividness of the color.

[0036]

According to the first and second aspects of the present invention, when the display attribute of the image displayed on the screen is detected, the performance data of the music corresponding to this display attribute is included in the performance data of the plurality of music. And to generate a musical tone parameter that specifies a musical tone formation mode according to the detected display attribute,
Since the musical tone is formed by reproducing the musical performance data of the selected song in a manner according to the generated musical tone parameter, it is possible to reproduce the musical composition according to the image content displayed on the screen. According to the invention described in claims 3 and 4, when the brightness and chromaticity of the image displayed on the screen are detected, the performance data of the music corresponding to the brightness and the chromaticity is selected from the performance data of the plurality of music. Along with the selection, in accordance with the detected luminance and chromaticity, a tone parameter that specifies the tone formation mode is generated,
Since the musical tone is formed by reproducing the performance data of the selected song in a manner according to the generated tone parameter, it is possible to reproduce the song corresponding to the brightness and chromaticity of the image displayed on the screen. According to the invention described in claims 5 and 6, when the dynamic change and the brightness of the moving image displayed on the screen are detected,
The performance data of the music corresponding to the dynamic change and the brightness is selected from the performance data of the plurality of music, and the tone parameter for designating the tone formation mode is generated according to the detected dynamic change and the brightness. Since the musical data is formed by reproducing the performance data of the selected music piece in a manner according to the generated musical sound parameter, it is possible to reproduce the music piece according to the dynamic change and the brightness of the moving image displayed on the screen.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a first embodiment according to the present invention.

FIG. 2 is a flowchart for explaining the operation of a musical sound generation processing routine according to the first embodiment.

FIG. 3 is a flowchart for explaining the operation of a musical sound generation processing routine according to the first embodiment.

FIG. 4 is a flowchart for explaining the operation of a musical sound generation processing routine according to the second embodiment.

FIG. 5 is a flowchart for explaining the operation of a musical sound generation processing routine according to the second embodiment.

FIG. 6 is a flow chart for explaining the operation of a musical sound generation processing routine according to the third embodiment.

FIG. 7 is a flow chart for explaining the operation of a musical sound generation processing routine according to the third embodiment.

[Explanation of symbols]

1 Communication unit 1a Transceiver unit 1b Communication control unit 2 Audio processing section 3 speakers 4 microphone 5 Key input section 6 CPU 7 ROM 8 RAM 9 Display 10 sound sources

Claims (6)

[Claims] 1. A musical performance data storage means for storing musical performance data of a plurality of songs, a detection means for detecting a display attribute of an image displayed on a screen, and a musical tone according to the display attribute detected by the detecting means. Parameter generating means for generating a tone parameter for designating a formation mode, and performance data of a piece of music corresponding to a display attribute detected by the detecting means from performance data of a plurality of pieces of music stored in the performance data storage means. It is provided with music selection means for selecting and music tone forming means for reproducing the performance data of the music selected by the music selection means in a manner according to the music tone parameter generated by the parameter generation means to form a music tone. A tone generator characterized by. 2. A detection process of detecting a display attribute of an image displayed on a screen, and a parameter generation process of generating a tone parameter for designating a tone formation mode in accordance with the display attribute detected in the detection process. A song selection process of selecting song performance data corresponding to the display attribute detected in the detection process from among the song data of a plurality of songs stored in advance in the song data selection process; And a musical tone forming step of reproducing musical performance data of the created music piece in a manner according to the musical tone parameter generated in the parameter generating step to form a musical tone. 3. Performance data storage means for storing performance data of a plurality of songs, detection means for detecting luminance and chromaticity of an image displayed on a screen, and luminance and chromaticity detected by the detection means. Corresponding to the luminance and chromaticity detected by the detection means from among the performance data of a plurality of songs stored in the performance data storage means, the parameter generation means for generating the tone parameters for designating the tone formation mode. Music selection means for selecting the performance data of the music to be played, and the musical sound formation for reproducing the musical performance data of the music selected by the music selection means in a manner according to the musical tone parameter generated by the parameter generating means. And a means for generating musical tones. 4. A detection process for detecting the brightness and chromaticity of an image displayed on the screen, and a detection process according to the brightness and chromaticity detected in this detection process.
A parameter generating process for generating a musical tone parameter for designating a musical tone forming mode, and a song corresponding to the luminance and chromaticity detected in the detecting process from the performance data of a plurality of songs stored in advance in the performance data storage means. A music selection process of selecting performance data, and a musical tone formation process of reproducing musical performance data of the musical composition selected in the music selection process in a manner according to the musical tone parameter generated in the parameter generating process to form a musical tone. And a musical tone generating method. 5. Performance data storage means for storing performance data of a plurality of songs, detection means for detecting dynamic changes and brightness of a moving image displayed on a screen, and dynamic changes detected by the detection means. And a dynamic change detected by the detecting means from the performance data of a plurality of pieces of music stored in the performance data storage means. And music selection means for selecting the performance data of the music corresponding to the brightness, and the performance data of the music selected by the music selection means are reproduced in a manner in accordance with the tone parameters generated by the parameter generating means to generate a musical sound. A musical tone generating device, comprising: a musical tone forming means for forming a musical tone. 6. A detection process for detecting a dynamic change and brightness of a moving image displayed on a screen, and a tone parameter for designating a tone formation mode according to the dynamic change and brightness detected in this detection process. And a song selection for selecting song performance data corresponding to the dynamic change and brightness detected in the detection process from among the song performance data of a plurality of songs stored in advance in the performance data storage means. And a musical tone forming step of reproducing musical performance data of the musical piece selected in the musical piece selecting step in a manner according to the musical tone parameter generated in the parameter generating step to form a musical tone. How to generate a musical tone.