JP2005037728A - On-vehicle musical sound generating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-vehicle musical sound generating device for changing a guide method of a lyrics from environmental information such as a vehicle speed and illumination. <P>SOLUTION: The on-vehicle musical sound generating device determines a state of a vehicle mounting a karaoke device by the detection of the environmental information of a parking brake (S12), a head light (S16), a room lamp (S18), the vehicle speeds (S28 and S48) and accelerations (S23 and S42), and changes four lyric guide modes by an on/off combination of a lyric guide by characters and a lyric guide by a voice output. In other words, (1) character guide ON+voice guide OFF, (2) character guide ON+voice guide ON, (3) voice guide OFF+voice guide ON, and (4) character guide OFF+voice guide ON (slow). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an on-vehicle musical sound generating device such as a karaoke device.

Generally, in a musical sound generating device such as a karaoke device, as a method of notifying the singer of the lyrics of the requested song, the lyrics characters are superimposed on the lower part of the background image displayed on the monitor screen and displayed. Yes. In addition, in the case of an in-vehicle musical sound generating device in which such a musical sound generating device is mounted on a vehicle, it is desirable that the driver can check the lyrics without looking at the character display. Therefore, proposals have been made to read lyrics data composed of text data, generate synthesized speech, and read the lyrics to the singer by reading the lyrics. (For example, refer to Patent Documents 1 and 2).
Japanese Patent Laid-Open No. 9-198062 JP 11-167392 A

  However, depending on the traveling speed of the vehicle, it may be difficult to hear the lyrics output by voice. Moreover, dazzling may be caused by the character screen on which the lyrics are displayed.

  The present invention has been made to solve such problems, and an object of the present invention is to provide an on-vehicle musical sound generating apparatus that switches a lyrics guide method according to environmental information such as vehicle speed and lighting.

  In order to achieve the above object, the present invention provides a music reproducing means for reproducing music data, a lyrics display control means for displaying lyrics on the display means based on the lyrics data, and a sound for generating an audio signal based on the lyrics data. An in-vehicle musical sound generator comprising: a signal generation unit; and a lyrics voice output unit that outputs lyrics of a song as lyrics voice at a predetermined timing based on the voice signal generated by the voice signal generation unit. Based on environmental information detecting means for detecting environmental information including at least one of travel speed, acceleration of the vehicle, lighting of the vehicle, or parking brake operation of the vehicle, and a detection result by the environmental information detecting means Lyric display mode by controlling the display of lyrics by the lyric display control means and the output of lyric audio by the lyric sound output means, And a switching means for switching voice output mode, and the lyrics guide mode between the three modes of dual mode.

  In the present invention, the switching means performs lyrics display by the lyrics display control means when the vehicle speed detected by the environmental information detection means is less than a predetermined speed, and when the vehicle speed is equal to or higher than the predetermined speed. The lyric display is controlled so as not to be displayed.

  In the present invention, the switching means controls the lyric sound output means to output the lyric sound when the environmental information detecting means detects that the vehicle is at a predetermined speed or higher. It is characterized by.

  Further, the present invention is characterized in that the switching means controls to display lyrics by the lyrics display control means when a parking brake operation of the vehicle is detected by the environment information detection means.

  Further, the present invention provides the switching means, when the vehicle speed detected by the environment information detecting means is equal to or higher than a predetermined speed, the speed of the lyrics voice output by the lyrics voice output means is slower than usual. Features.

  Further, in the present invention, when the speed detected by the environment information detecting means is reduced below a predetermined value, the switching means continues outputting the lyrics voice by the lyrics voice outputting means for a predetermined time, Control is performed to display lyrics by the lyrics display control means.

  Further, according to the present invention, when the speed detected by the environment information detecting means is reduced below a predetermined value, the switching means continues outputting the lyrics voice by the lyrics voice outputting means for a predetermined number of songs. Then, the lyric display control means controls to display the lyric.

  Further, according to the present invention, when the acceleration detected by the environment information detection unit indicates deceleration, the switching unit performs the lyrics guide mode at a timing different from that when the acceleration indicates acceleration. It is characterized by switching.

  Further, the present invention is characterized in that the switching means controls the lyrics display control means not to display lyrics when the environmental information detection means detects lighting of a vehicle headlamp. And

  Further, the present invention is characterized in that the switching means controls the lyric display control means to display lyrics when the environmental information detecting means detects lighting of a vehicle interior light. .

  In the present invention, the switching means detects the lyrics when the environmental information detecting means detects that the vehicle headlamp is turned on and the vehicle interior lamp is turned off. Control is performed so that lyrics are not displayed by the control means.

  In the present invention, the switching means detects the lyrics display control when the environmental information detecting means detects that the vehicle headlamp is turned off and the vehicle interior lamp is turned on. It is controlled to display lyrics by means.

  The present invention further includes switching condition input means for inputting a condition for switching the lyrics guide mode, and the switching means uses the switching condition input means instead of the detection result detected by the environment information detecting means. Based on the inputted switching condition, the display of lyrics by the lyrics display control means and the output of lyrics voice by the lyrics voice output means are controlled.

  According to the on-vehicle musical sound generating device of the present invention, the environmental information detecting means includes at least one of the vehicle running speed, the vehicle acceleration, whether the vehicle illumination is turned on, or whether the vehicle parking brake is operated. Based on the detection result, the switching means controls the display of lyrics by the lyrics display control means and the output of the lyrics voice by the lyrics voice output means, so that the lyrics display mode, the lyrics voice output mode, and both Switch the lyrics guide mode between the three modes. Therefore, it is possible to provide a lyrics guide method suitable for the vehicle traveling speed, lighting conditions, and the like.

  Further, according to the present invention, when the vehicle speed detected by the environmental information detection means is less than a predetermined speed, the switching means displays lyrics by the lyrics display control means, and when the vehicle speed is equal to or higher than the predetermined speed, the lyrics display is performed. Control not to do. Therefore, in the case of general driving, it is possible to concentrate on driving without looking at the screen to know the lyrics. In addition, when the user is not traveling, or is traveling slowly or in a traffic jam, the lyrics can be seen by displaying characters and the song can be sung comfortably.

  Further, according to the present invention, when the environment information detecting unit detects that the vehicle is at a predetermined speed or more, the lyric sound output unit controls the lyric sound to be output. Therefore, since the lyrics can be confirmed with the lyric voice while traveling, it is possible to concentrate on driving while singing without being distracted by the screen.

  Further, according to the present invention, when the parking brake operation of the vehicle is detected by the environment information detection means, the switching means controls to display the lyrics by the lyrics display control means. Therefore, when the parking brake is operated, it can be determined that the vehicle is stopped, and the lyrics can be confirmed by displaying characters.

  Further, according to the present invention, when the vehicle speed detected by the environment information detection unit is equal to or higher than a predetermined speed, the switching unit makes the lyrics voice output speed by the lyrics voice output unit slower than normal. Therefore, during high-speed running where the sound around the vehicle is loud, the speed of the lyrics voice can be made slower than usual to make it easier to check the lyrics.

  Further, in the present invention, when the speed detected by the environment information detecting means is decelerated to less than a predetermined value, the switching means continues outputting the lyrics voice by the lyrics voice outputting means for a predetermined time, and then the lyrics display control means Control to display the lyrics. Therefore, for example, even in the case of going from deceleration to stopping because it stops temporarily, such as waiting for a signal, the voice output is not immediately switched to the character display, and there is no complication, so it is possible to continue singing calmly. .

  Further, according to the present invention, when the speed detected by the environment information detecting means is decelerated below a predetermined value, the switching means continues to output the lyrics voice by the lyrics voice outputting means for a predetermined number of songs, and then the lyrics Control is performed to display lyrics by the display control means. Therefore, for example, even in the case of going from deceleration to stopping because it stops temporarily, such as waiting for a signal, the voice output is not immediately switched to the character display, and there is no complication, so it is possible to continue singing calmly. .

  Further, according to the present invention, when the acceleration detected by the environment information detecting means indicates deceleration, the lyrics guide mode is switched at a timing different from that when the acceleration indicates acceleration. Therefore, even when the speed frequently fluctuates around the predetermined speed, the voice output is not frequently switched to the character display, and there is no complication, so that the singing can be continued calmly.

  Further, according to the present invention, when the lighting of the vehicle headlamp is detected by the environment information detection means, the switching means controls the lyrics display control means not to display the lyrics. Therefore, since the lyrics are not displayed on the screen at night when the headlamp is turned on, it is possible to prevent the singer from being dazzled by looking at the screen.

  Further, according to the present invention, when the lighting of the vehicle interior lamp is detected by the environment information detection means, the switching means controls to display the lyrics by the lyrics display control means. Accordingly, it is possible to provide a lyrics guide with a screen display that is easier to confirm when the room light is turned on, which is likely to be stopped.

  Further, according to the present invention, when the environmental information detection means detects that the vehicle headlight is turned on and the vehicle interior light is turned off, the switching means is based on the lyrics display control means. Control not to display lyrics. Therefore, since the lyrics are not displayed on the screen at night when the headlamp is turned on, it is possible to prevent the singer from being dazzled by looking at the screen.

  Further, according to the present invention, when the environmental information detecting means detects that the vehicle headlight is turned off and the vehicle interior light is turned on, the switching means is the lyrics by the lyrics display control means. Control is performed to perform display. Therefore, when the interior light is on when the headlamp is turned off, it is determined that the vehicle is stopped, and the lyrics can be confirmed by displaying characters.

  Further, the present invention comprises a switching condition input means for inputting a condition for switching the lyrics guide mode, based on the switching condition input by the switching condition input means instead of the detection result detected by the environment information detecting means, The switching means controls the display of lyrics by the lyrics display control means and the output of lyrics voice by the lyrics voice output means. Therefore, it is possible to select a lyrics guide method that is preferred by the singer.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 is a circuit block diagram of a karaoke apparatus 1 showing an example of an on-vehicle musical sound generating apparatus according to the present invention. The karaoke apparatus 1 includes a CPU 11 that controls the karaoke apparatus 1 as a whole, a ROM 12 that stores various programs, a RAM 13 that stores various data, an operation panel 21 that is a switching condition input means, an external storage device 14, and a MIDI sound source. 15, a video monitor 17 for display, a video controller 16 that controls the video monitor 17, a mixer 18 that mixes the sound from the MIDI sound source 15 and the voice of the singer, an amplifier 19, a speaker 20, and an amplifier 24. An echo circuit 23 that echoes the audio signal from the microphone 25, the amplifier 24, a vehicle speed pulse detection sensor 31, an acceleration sensor 32, a parking brake operation sensor 33, a headlight sensor 34, and an indoor light sensor. 35.

  The operation panel 21 includes various operation keys including a numeric keypad and a cursor key. The operation panel 21 can input a requested music piece and a user ID, select a lyrics guide method by manual input, and input various setting items.

  The external storage device 14 is composed of a hard disk or a non-volatile memory, and is composed of a song database 41 which is MIDI data for generating a musical accompaniment sound, lyric data composed of text data mixed with kanji and kana and corresponding reading data. A lyric database 42, a video database 43 for generating a background image, a speech synthesis dictionary 61 used for speech synthesis of lyric data, and a syllable length database 62 that stores the duration of each synthesized speech syllable. Is remembered.

  The MIDI sound source 15 that is a music reproducing means generates an acoustic signal of an accompaniment sound based on the MIDI data stored in the music database 41. Based on the video data in the video database 43 and the lyrics data in the lyrics database 42, the video controller 16 superimposes a lyrics telop on the background image of the song and displays it on the screen of the video monitor 17.

  The mixer 18 mixes the acoustic signal of the accompaniment sound generated by the MIDI sound source 15 and the voice signal of the singer from the echo circuit 23 and outputs the mixed signal to the amplifier 19, and also adds the voice synthesis dictionary to the lyrics data in the lyrics database 42. The synthesized speech signal generated using 61 is output to the amplifier 19. The amplifier 19 amplifies the signal from the mixer 18 and drives the speaker 20. The speaker 20 outputs the signal from the amplifier 19 as sound. The echo circuit 23 performs echo processing on the audio signal from the amplifier 24. The amplifier 24 amplifies the audio signal from the microphone 25. The microphone 25 converts the singing voice of the singer into an audio signal.

  The vehicle speed pulse detection sensor 31 outputs the vehicle speed as a vehicle speed pulse, and the vehicle speed is calculated based on the output pulse. When there is no pulse, the vehicle speed is zero. The acceleration sensor 32 outputs the acceleration of the vehicle, and a positive numerical value indicates acceleration and a negative numerical value indicates deceleration. The parking brake operation sensor 33 detects when the vehicle parking brake is applied. The headlamp sensor 34 detects the lighting of the vehicle headlamp, and the interior light sensor 35 detects the lighting of the vehicle interior lamp. The vehicle speed pulse detection sensor 31, the acceleration sensor 32, the parking brake operation sensor 33, the headlight sensor 34, and the interior light sensor 35 are originally installed on the vehicle side, and the detection results thereof. Is output to the CPU of the karaoke apparatus 1.

  Next, the storage area of the RAM 13 will be described with reference to FIG. FIG. 2 is a schematic diagram showing a storage area of the RAM 13. In the RAM 13, a parking brake operation detection result storage area 131 for temporarily storing the detection result of the parking brake operation sensor 33, and a headlamp sensor detection result storage area 132 for temporarily storing the detection result of the headlamp sensor 34 are stored. Obtained from the interior light sensor detection result storage area 133 for temporarily storing the detection result of the interior light sensor 35, the acceleration sensor detection result storage area 134 for temporarily storing the detection result of the acceleration sensor 32, and the vehicle speed pulse detection sensor 31. The vehicle speed detection result storage area 135 for temporarily storing the vehicle speed to be stored, the voice guide flag storage area 136 for storing the voice guide flag that is turned on when the voice output of the lyrics is performed, and the character display of the lyrics In this case, a character guide flag storage area 137 for storing a character guide flag that is turned on when 1 is stored. A continuation flag storage area 138 for storing a continuation flag that is stored and turned ON when the sound output of lyrics is continued, and a low-speed reading flag storage area that is stored and turned ON when the reading speed is set slowly. 139 is provided. In addition to these, the RAM 13 is provided with various storage areas not shown.

  Next, the operation of the karaoke apparatus 1 configured as described above will be described with reference to the flowcharts of FIGS. 3 to 5 and the display screen example of FIG. FIG. 3 is a flowchart of the main routine showing the overall flow of the karaoke apparatus 1, and FIG. 4 is a continuation of the flowchart of FIG. FIG. 5 is a flowchart showing details of the lyrics guide process performed in S128 of the flowchart of FIG. 3 and S94 of the flowchart of FIG. FIG. 6 is a configuration diagram of the display screen 100.

  In the present embodiment, (1) character guide ON + voice guide OFF, (2) character guide ON + voice guide ON, and (3) character by combination of ON / OFF of the lyrics guide by letters and the lyrics guide by voice output. Guide OFF + Voice guide ON, (4) Character guide OFF + Voice guide ON (slowly) The four lyrics guide modes are switched. The above four modes can be selected by manually inputting from the operation panel 21 and switching or automatically setting. In the case of automatic setting, basically (1) detects that the vehicle is stopped, (2) indicates that the vehicle is traveling slowly, and (3) indicates that the vehicle is in general travel. (4) is selected when the vehicle is traveling at high speed. However, when the headlamp is lit during traveling at night, the character guide is turned off even during stoppage or slowing down to prevent dazzling. In addition, when the vehicle decelerates from general traveling or high-speed traveling and stops, the voice guide is switched to the character guide. However, if the switching is too fast, it may cause discomfort, so the performance for one song is finished. Control is performed using a continuation flag so that the voice guide is continued until it is switched to the character guide.

  First, a song selected from a singer is received, the song data is read from the song database 41, the lyrics data is read from the lyrics database 42, and the background video data when the lyrics are displayed on the screen is read from the video database 43 and stored in the RAM 13. (S1). Next, a setting screen 100 as shown in FIG. 6 is displayed on the video monitor 17 to prompt the user to select a lyrics guide method (S2). The user moves the cursor of the operation panel 21 and selects a lyrics guide method from “lyric display”, “voice guide”, “lyric display & voice guide”, and “automatic” (S4). Furthermore, when “automatic” is not selected, the speed can be set by moving the “reading speed” bar with the cursor. When the “enter” button on the setting screen 100 is pressed and the input of the setting value is completed, it is determined whether or not “automatic” has been selected (S6).

  When the automatic setting is selected (S6: YES), the process proceeds to the flowchart of FIG. First, 0 is stored in the continuation flag storage area 138 as an initial setting, and the continuation flag is turned OFF (S10). Next, the signal from the parking brake operation sensor 33 is read and stored in the parking brake operation detection result storage area 131 (S12). It is determined whether or not the parking brake is operated from the stored signal (S14). If the parking brake is operated (S14: YES), the character guide is used because the vehicle is stopped. 1 is stored in the flag storage area 137 and the character guide flag is turned ON (S80), 0 is stored in the voice guide flag storage area 136 and the voice guide flag is turned OFF (S82).

  If the parking brake has not been operated (S14: NO), the detection result of the headlamp sensor 34 is read and stored in the headlamp sensor detection result storage area 132 (S16). Then, the detection result of the indoor light sensor 35 is read and stored in the indoor light sensor detection result storage area 133 (S18). Next, it is determined in order from the stored detection results whether the headlamp and the room lamp are lit (S20, S22, S40). If the headlamp is not lit (S20: NO) and the room lamp is lit (S40: YES), 1 is stored in the character guide flag storage area 137 because the vehicle is stopped. The character guide flag is turned ON (S80), 0 is stored in the voice guide flag storage area 136, and the voice guide flag is turned OFF (S82).

  On the other hand, when the headlamp is lit (S20: YES) and the room lamp is not lit (S22: NO), it can be determined that the vehicle is traveling at night. Therefore, first, the acceleration sensor 32 is read and stored in the acceleration sensor detection result storage area 134 (S23). Then, it is determined whether the value a of the detection result is 0 or more, that is, whether acceleration is being performed (S24). If not accelerating (S24: NO), it is determined whether or not the continuation flag is OFF (S26). Since the continuation flag is turned off in S10 in the first process (S26: YES), the process proceeds to S28. When the vehicle is accelerating (S24: YES), the vehicle speed pulse is read from the vehicle speed pulse detection sensor 31, and the vehicle speed is calculated and stored in the vehicle speed detection result storage area 135 (S28). Then, it is determined whether or not the calculated vehicle speed is high (for example, 80 km / h or more) (S30). If the vehicle is running at high speed (S30: YES), 1 is stored in the low-speed reading flag storage area 139 and the low-speed reading flag is turned ON to set the reading speed to low speed (S32). Then, the process proceeds to S36.

  If the vehicle is not traveling at high speed (S30: NO), 0 is stored in the low-speed reading flag storage area 139 to set the reading speed to normal, and the low-speed reading flag is turned OFF (S34). Next, since the vehicle is running, 1 is stored in the voice guide flag storage area 136 for voice guidance, the voice guide flag is turned on, and the next and subsequent processes are not suddenly switched to the character guide. Therefore, 1 is stored in the continuation flag storage area 138 and the continuation flag is turned ON (S36). In order to turn off the character guide, 0 is stored in the character guide flag storage area 137 and the character guide flag is turned off (S38).

  Further, when the headlamp and the interior lamp are both turned off (S20: NO, S40: NO), it can be determined that the vehicle travels in the daytime, and therefore, the process proceeds to the acceleration and vehicle speed detection processing after S42. Further, even if the headlamp is lit (S20: YES), if the room light is lit (S22: YES), the possibility of dazzling due to the screen display is low, so it is the same as in the case of daytime driving. The process proceeds to S42.

  In S42, the acceleration sensor 32 is read and stored in the acceleration sensor detection result storage area 134. Then, it is determined whether the value a of the detection result exceeds 0, that is, whether acceleration is being performed (S44). Here, the switching timing of the lyrics guide mode is controlled depending on whether the vehicle is accelerating or decelerating, and the lyrics guide mode is prevented from frequently switching during traveling at a speed before and after the vehicle speed, which is the mode switching condition. If not accelerating (S44: NO), it is determined whether or not the continuation flag is OFF (S46). Since the continuation flag is turned off in S10 in the first process (S46: YES), the process proceeds to S48.

  If the vehicle is accelerating (S44: YES), the vehicle speed pulse is read from the vehicle speed pulse detection sensor 31, and the vehicle speed is calculated and stored in the vehicle speed detection result storage area 135 (S48). Then, it is determined whether or not the calculated vehicle speed is zero (actually, it is necessary to consider an error of several Km / h), that is, whether the vehicle is stopped (S50). If the vehicle is not stopped (S50: NO), it is determined whether the vehicle is traveling slowly (for example, 10 km / h or less) (S52). If the vehicle is slowing down (S52: YES), 0 is stored in the low speed reading flag storage area 139 to set the reading speed to normal, and the low speed reading flag is turned OFF (S54). Next, since the vehicle is running, 1 is stored in the voice guide flag storage area 136 to turn on the voice guide flag in order to perform voice guidance, and the next and subsequent processing is not suddenly switched to the character guide. Therefore, 1 is stored in the continuation flag storage area 138 and the continuation flag is turned ON (S56). Since the character guide is also being turned on, 1 is stored in the character guide flag storage area 137 and the character guide flag is turned ON (S58).

  If the vehicle is not traveling slowly (S52: NO), it is determined whether or not the vehicle is traveling in general (for example, less than 80 kilometers per hour) (S60). If the vehicle is traveling in general (S60: YES), 0 is stored in the low speed reading flag storage area 139 to set the reading speed to normal, and the low speed reading flag is turned OFF (S62). Next, since the vehicle is running, 1 is stored in the voice guide flag storage area 136 for voice guidance, the voice guide flag is turned on, and the next and subsequent processes are not suddenly switched to the character guide. Therefore, 1 is stored in the continuation flag storage area 138 and the continuation flag is turned ON (S64). In order to turn off the character guide, 0 is stored in the character guide flag storage area 137 and the character guide flag is turned off (S66).

  If the vehicle is not traveling normally (S60: NO), the vehicle is traveling at high speed, and therefore, 1 is stored in the low-speed reading flag storage area 139 and the low-speed reading flag is turned ON in order to set the reading speed to a low speed (S68). . Next, since the vehicle is running, 1 is stored in the voice guide flag storage area 136 to turn on the voice guide flag in order to perform voice guidance, and the next and subsequent processing is not suddenly switched to the character guide. Therefore, 1 is stored in the continuation flag storage area 138 and the continuation flag is turned ON (S70). In order to turn off the character guide, 0 is stored in the character guide flag storage area 137 and the character guide flag is turned off (S72).

  On the other hand, when the vehicle is stopped (S50: YES), the continuation flag storage area 138 is checked to determine whether or not the continuation flag is ON (S74). When the vehicle is stopped, it is basically decided to perform character guidance. However, when the vehicle decelerates from running and stops, the voice guide is suddenly switched to character guidance so that the singer is not uncomfortable. Therefore, the voice guide is continued until the performance of one song is completed. A flag set for this purpose is a continuation flag. If the continuation flag is ON (S74: YES), the process proceeds to S90 while maintaining the current setting for the lyrics guide. If the continuation flag is OFF (S74: NO), 1 is stored in the character guide flag storage area 137, the character guide flag is turned ON (S80), and 0 is stored in the voice guide flag storage area 136. The guide is turned off (S82).

  With the above processing, the lyrics guide mode is determined, and necessary settings are stored in the respective storage areas of the RAM 13 (voice guide flag storage area 136, character guide flag storage area 137, continuation flag storage area 138, low speed reading flag storage area 139). Remembered. Using these settings, the performance of the song and the output of the lyrics guide are performed in the subsequent processing.

  First, it is determined whether or not the performance is ongoing (S90). If the performance is ongoing (S90: YES), the process is continued as it is, and the process proceeds to S94. In the first process, since the performance has not yet started (S90: NO), the performance data of the requested music temporarily stored in the RAM 13 in S1 is sent to the MIDI sound source 15 to start the performance (S92). Next, in S94, a character guide or a voice guide is performed with reference to the above setting relating to the lyrics guide.

  Details of the lyrics guide process performed in S94 will be described with reference to the flowchart of FIG. First, it is determined whether or not to perform character guidance (S210). Specifically, if 1 is stored in the character guide flag storage area 137, it is determined that the character guide is performed, and if 0 is stored, it is determined that the character guide is not performed. When character guidance is not performed (S210: NO), the process proceeds to S214 as it is. When performing character guidance (S210: YES), a signal is output to the video controller 16 so that the lyrics telop is superimposed on the background video and displayed on the video monitor 17 (S212).

  Next, it is determined whether or not voice guidance is performed (S214). Specifically, if 1 is stored in the voice guide flag storage area 136, it is determined that voice guidance is performed, and if 0 is stored, it is determined that voice guidance is not performed. If voice guidance is not performed (S214: NO), the process returns to the main routine as it is. When performing voice guidance (S214: YES), the lyrics data stored in the RAM 13 is subjected to voice synthesis processing (S216). In this speech synthesis process, an accented reading character string is generated using the speech synthesis dictionary 61 by a well-known method, and the time required for reading is calculated using the syllable length database 62. The accented reading character string may be stored in the lyrics database 42 in advance. Further, if 1 is stored in the low speed reading flag storage area 139 and the low speed reading flag is ON, it is reflected in the calculation of the reading duration. Then, the reading start time is calculated from the calculated time and the time when reading should be ended (when the performance of the target lyrics starts). Along with the signal indicating the reading start time, the generated synthesized voice data is output to the mixer 18 (S218). Then, the process returns to the main routine.

  Returning to FIG. 4, when the lyrics guide process is completed (S94), it is determined whether or not the performance of the requested song has been completed (S96). If the performance is finished (S96: YES), the process is terminated. If the performance is not finished (S96: NO), the process returns to S12, the vehicle environment information is detected, and the lyrics guide mode is determined (S12 to S82). If the voice guide is set to ON in the first process (S36, S56, S64, S70), the continuation flag is also set to ON at the same time. (S26, S46, S74), the current setting is continued (S26: NO, S46: NO, S74: YES). Then, a lyrics guide process (S94) is performed, and the above processes are repeated until the performance is completed.

  On the other hand, returning to FIG. 3, if the automatic setting is not selected (S6: NO), if the input reading speed is low, 1 is stored in the low speed reading flag storage area 139 and turned ON. (S102). Next, it is determined whether or not “display lyrics” has been set (S104). If “Lyrics display” is set (S104: YES), 1 is stored in the character guide flag storage area 137 and turned ON (S106). Then, 0 is stored in the voice guide flag storage area 136 and turned OFF (S108). If it is not “Lyrics display” setting (S104: NO), it is determined whether “Voice guide” setting is set (S110). If the “voice guide” is set (S110: YES), 0 is stored in the character guide flag storage area 137 and turned OFF (S112). Then, 1 is stored in the voice guide flag storage area 136 and turned ON (S116). If the “voice guide” setting is not set (S110: NO), it is determined whether or not both the “lyric display & voice guide” modes are set (S118). In both modes (S118: YES), 1 is stored in the character guide flag storage area 137 and turned ON (S120). Then, 1 is stored in the voice guide flag storage area 136 and turned ON (S124). If it is not both modes (S118: NO), since the cancel has been pressed, the process proceeds to S126 as it is.

  Through the above processing, necessary settings are stored in each storage area of the RAM 13 (voice guide flag storage area 136, character guide flag storage area 137, continuation flag storage area 138, low speed reading flag storage area 139). Using these settings, the performance of the song and the output of the lyrics guide are performed in the subsequent processing.

  First, the performance data of the requested music temporarily stored in the RAM 13 in S1 is sent to the MIDI sound source 15 to start the performance (S126). Next, in S128, the character guide or the voice guide is performed with reference to the above setting relating to the lyrics guide.

  The lyrics guide process performed in S128 is performed according to the flowchart of FIG. 5 as in the case of S94 described above. When the lyrics guide process is finished (S128), it is determined whether or not the performance of the requested song is finished (S130). If the performance is finished (S130: YES), the process is terminated. If the performance is not finished (S130: NO), the performance is continued and the lyrics guide process (S128) is performed.

  As described above, according to the karaoke device 1 of the present embodiment, the parking brake operation, the headlamp, the interior light, the acceleration, and the vehicle speed are detected to determine the situation of the vehicle on which the karaoke device 1 is mounted, As a result, four lyrics guide modes are selected, and a character guide and a voice guide are used in appropriate combination. Therefore, the optimal lyrics guide method is selected from the situation of the vehicle, and a comfortable singing environment can be provided to the singer. Also, since manual input is possible, there is a video monitor in the back seat even when the vehicle is running, and when the singer is singing by looking at the video monitor in the back seat, the character guide is turned on, etc. depending on the situation You can switch to the appropriate lyrics guide mode.

  In this embodiment, the CPU 11 that executes the lyrics telop display process in S212 of the flowchart of FIG. 5 functions as the lyrics display control means. In S216 of the flowchart of FIG. 5, the CPU 11 that executes the speech synthesis process functions as an audio signal generation unit. Further, the CPU 11 that executes the synthesized voice data output (reading) process in S218 of the flowchart of FIG. 5 functions as a lyrics voice output unit. Further, the parking brake operation detection process in S12, the headlight sensor reading process in S16, the indoor light sensor reading process in S18, the acceleration sensor reading process in S23 and S42, and the speed sensor reading process in S28 and S48 in the flowchart of FIG. 4 are performed. The CPU 11 to execute functions as environmental information detection means. Also, the character guide / voice guide ON / OFF processing and the reading speed setting processing are executed in S32, S34, S36, S38, S54, S56, S58, S62, S64, S66, S68, S70, S72, S80, and S82. CPU 11 that functions as switching means.

  In the embodiment described above, the voice guide is executed in the case of automatic setting, and when it is subsequently decelerated and stopped, the original state is continued without switching to the character guide until the performance of the song is finished. However, instead of continuing for one song, the voice guide may be continued for a predetermined time (for example, 30 seconds) by setting a timer. The operation of the karaoke apparatus 1 according to another embodiment in such a case will be described with reference to the flowchart of FIG. FIG. 7 is a flowchart of the main routine of the karaoke apparatus 1 of another embodiment, and is a continuation of the flowchart of FIG.

  Since the flowchart of FIG. 7 substantially corresponds to the flowchart of FIG. 4, the same process is denoted by the same step number and detailed description thereof is omitted. Once the voice guide is set to ON and the continuation flag is set to ON (S36, S56, S64, S70), the state at the time of setting is continued during deceleration (S24: NO, S44: NO) (S26: NO, S46: NO). When it stops after that (S50: YES), since the continuation flag is ON (S74: YES), a timer is set and a continuation flag is turned OFF (S76). Then, the performance is continued (S90: YES), and the lyrics guide mode is continued to perform the lyrics guide process (S94). If the process after the next round is still stopped (S50: YES), the continuation flag is set to OFF (S74: NO), so the timer has exceeded 30 seconds or the timer is OFF. (S78), if it has not yet exceeded 30 seconds and the timer is not OFF (S78: NO), the performance and lyrics guide are continued (S90: YES, S94). After the next order, if it is still stopped (S50: YES), the continuation flag is OFF (S74: NO), so the timer is checked and if it exceeds 30 seconds (S78: YES) The character guide is turned on (S80), and the voice guide is turned off (S82). In the next lyrics guide process (S94), the voice guide is switched to the character guide according to this setting, and the lyrics guide is output.

  In addition, the timing for delaying the switching time from the voice guide to the character guide when decelerating to stopping is not limited to the end of the performance of one song as described above, and the elapse of a predetermined time, for example, during performance In this case, it can be set as appropriate, for example, at the end of the first lyric or at the end of the performance of several songs.

  The on-vehicle musical sound generating device of the present invention can set the lyrics guide mode by switching the combination of the character guide and the voice guide, and the lyrics guide using the combination of the character guide and the voice guide depending on the detected environment information. It can also be applied to a musical sound generator that performs the above.

1 is a circuit block diagram of a karaoke apparatus 1 showing an example of an on-vehicle musical sound generating apparatus according to the present invention. 3 is a schematic diagram showing a storage area of a RAM 13. FIG. 4 is a flowchart of a main routine showing an overall flow of the karaoke apparatus 1. FIG. 4 is a continuation of the flowchart of FIG. 3. It is a flowchart of a lyrics guide process. 3 is a configuration diagram of a display screen 100. FIG. It is a flowchart of the main routine of the karaoke apparatus 1 of another embodiment.

Explanation of symbols

1 Karaoke device 11 CPU
13 RAM
17 Video Monitor 18 Mixer 19 Amplifier 20 Speaker 21 Operation Panel 31 Vehicle Speed Pulse Detection Sensor 32 Acceleration Sensor 33 Parking Brake Operation Sensor 34 Headlight Sensor 35 Indoor Light Sensor 41 Music Database 42 Lyrics Database 43 Video Database 61 Speech Synthesis Dictionary

Claims (13)

Song playback means for playing song data;
Lyrics display control means for displaying lyrics on the display means based on the lyrics data;
Audio signal generation means for generating an audio signal based on the lyrics data;
In the in-vehicle musical sound generating device including the lyric sound output means for outputting the lyrics of the song as the lyric sound at a predetermined timing based on the sound signal generated by the sound signal generating means,
Environmental information detecting means for detecting environmental information including at least one of a traveling speed of the vehicle, acceleration of the vehicle, lighting of the vehicle lighting, or parking brake operation of the vehicle;
By controlling the display of the lyrics by the lyrics display control means and the output of the lyrics voice by the lyrics voice output means based on the detection result by the environment information detection means, the lyrics display mode, the lyrics voice output mode, and the dual mode And a switching means for switching the lyric guide mode between the three modes.   The switching means performs lyrics display by the lyrics display control means when the vehicle speed detected by the environment information detection means is less than a predetermined speed, and does not display lyrics when the vehicle speed is equal to or higher than the predetermined speed. The in-vehicle musical tone generator according to claim 1, which is controlled as described above.   The switching means controls to output lyrics voice by the lyrics voice output means when the environment information detection means detects that the vehicle is at a predetermined speed or higher. The on-vehicle musical sound generator according to 1 or 2.   4. The control unit according to claim 1, wherein the switching unit controls the lyrics display by the lyrics display control unit when a parking brake operation of the vehicle is detected by the environment information detection unit. The on-vehicle musical sound generator according to claim 1.   2. The switching device according to claim 1, wherein when the vehicle speed detected by the environment information detecting device is equal to or higher than a predetermined speed, the lyric audio output device makes the lyric audio output speed slower than normal. The on-vehicle musical sound generator according to any one of claims 1 to 4.   When the speed detected by the environment information detection means is reduced below a predetermined value, the switching means continues outputting the lyrics voice by the lyrics voice output means for a predetermined time, and then the lyrics by the lyrics display control means. 6. The on-vehicle musical tone generator according to claim 1, wherein the on-board musical tone generator is controlled to perform display.   When the speed detected by the environment information detection means is reduced below a predetermined value, the switching means continues outputting the lyrics voice by the lyrics voice output means for a predetermined number of songs, and then the lyrics display control 6. The on-vehicle musical sound generating device according to claim 1, wherein the lyric is displayed by means.   When the acceleration detected by the environment information detection means indicates deceleration, the switching means switches the lyrics guide mode at a timing different from that when the acceleration indicates acceleration. The on-vehicle musical sound generator according to any one of claims 1 to 5.   2. The switching unit according to claim 1, wherein when the lighting of a vehicle headlamp is detected by the environmental information detection unit, the lyrics display control unit controls the lyrics display not to be performed. The on-vehicle musical sound generator according to any one of claims 8 to 10.   9. The switching means according to claim 1, wherein when the lighting of a vehicle interior light is detected by the environmental information detection means, the lyrics display control means controls to display lyrics. The on-vehicle musical sound generator according to any one of the above.   When the environmental information detecting means detects that the vehicle headlamp is turned on and the vehicle interior light is turned off, the switching means displays the lyrics by the lyrics display control means. The in-vehicle musical tone generator according to any one of claims 1 to 8, wherein control is performed so as not to be performed.   The switching means performs lyrics display by the lyrics display control means when it is detected by the environmental information detection means that the vehicle headlamp is turned off and the vehicle interior light is turned on. The on-vehicle musical tone generator according to any one of claims 1 to 8, characterized by being controlled as described above. Comprising a switching condition input means for inputting a condition for switching the lyrics guide mode,
The switching means, instead of the detection result detected by the environment information detection means, based on the switching condition input by the switching condition input means, the lyrics display by the lyrics display control means, and the lyrics voice output means The in-vehicle musical sound generating device according to claim 1, wherein the output of the lyric sound is controlled.

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