JP3821352B2 - Telephone terminal device - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a telephone terminal device capable of informing a notification sound with a melody sound, and is particularly suitable for application to a car phone or a mobile phone.
[0002]
[Prior art]
In mobile phone systems such as PDC (Personal Digital Cellular telecommunication system) known as analog cellular systems and digital cellular systems, and simple mobile phone systems (PHS: Personal Handyphone System) When there is an incoming call, a ring tone is emitted to notify the user of the incoming call. As this ringing tone, a beep sound has been conventionally emitted. However, since the beep sound is annoying, it has recently been changed to a melody sound instead of a beep sound.
[0003]
[Problems to be solved by the invention]
A conventional mobile phone that can reproduce a melody sound is provided with a musical sound generating means that can perform automatically. This musical tone generating means generally comprises a central processing unit (CPU), a ROM (Read Only Memory), a RAM (Random Access Memory), and a musical tone generator, and the CPU executes an automatic performance program stored in the ROM. As a result, the music data stored in the ROM or RAM is read out, and the music is generated by setting the tone generation parameters to the musical sound generator.
In order to generate high-quality musical tones, recent musical tone generating means can reproduce music composed of a plurality of channels.
[0004]
However, in a conventional telephone terminal device such as a mobile phone, the melody sound for notifying the user of an incoming call or a hold is such that a predetermined music is repeatedly emitted and lacks interest. It was.
Therefore, an object of the present invention is to provide a telephone terminal device capable of generating a melody sound from a plurality of music pieces in a telephone terminal device capable of informing with a melody sound.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the telephone terminal device of the present invention is a telephone terminal device capable of informing a notification sound with a melody sound, a storage means capable of storing a plurality of music data, a plurality of music data, A storage means capable of storing a medley list; and a control means for sequentially reading a plurality of music data from the storage means based on the medley list and transferring them to a musical sound generating means when an instruction to start the notification sound is given. And music tone generation means for generating the melody sound by reproducing the music data transferred from the control means, wherein the medley list includes the order information of the order of reproducing the plurality of music data, and the music to be reproduced. Designation information for specifying data, information on the number of times the specified music data is repeatedly played, and playback of all or part of the specified music data. It includes an indication information indicating whether the to, Each of these information can be set, The control means reads out the music data designated by the designation information based on the order information, and all or part of the music data indicated by the instruction information to the musical sound generation means at the number of times indicated by the frequency information. I try to forward it.
[0006]
In the telephone terminal device of the present invention, A part of music data indicated by the instruction information is indicated by sandwiching a part of the note data of the music data with a mark. May be.
[0008]
Furthermore, another telephone terminal device of the present invention capable of achieving the above object is a telephone terminal device capable of notifying a notification sound with a melody sound, and storing a plurality of music data and a medley list. And a control means for sequentially reading out a plurality of music data from the storage means according to a set mode and transferring the music data to the musical sound generating means when the notification sound is instructed to start, and transferred from the control means. Music data generating means for generating the melody sound, and the medley list includes order information for the order of reproducing the plurality of music data, and designation information for specifying the music data to be reproduced. , Information on the number of times the specified music data is repeatedly played, and instruction information for instructing whether to play all or only a part of the specified music data Look, Each of these information can be set, When the mode is set to the program playback mode, the control means reads the music data designated by the designation information based on the order information, and the instruction information is the number of times indicated by the number information. When all or a part of the music data to be instructed is transferred to the musical sound generating means, and the mode is set to the random playback mode, the control means is a plurality of the storage means from the storage means in a random order. The music data is sequentially read out and transferred to the tone generation means.
[0010]
According to the present invention, a melody sound can be generated by reproducing a plurality of pieces of music data in a pre-programmed order or a random order. In this case, it is possible to set the playback order of each music data and the number of times of loop playback, playback of all music data, or part of the chorus pattern, etc., so that the user can generate his / her favorite melody sound. Can do.
Also, one of a program playback mode that plays back multiple pieces of music data as programmed, a random playback mode that plays back multiple pieces of music data in random order, and a loop playback mode that plays back one piece of music data repeatedly Since the reproduction mode can be selected to generate a melody sound, the melody sound in various modes can be notified.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a configuration example of an embodiment when the telephone terminal device of the present invention is applied to a mobile phone.
A cellular phone 1 shown in FIG. 1 includes a generally retractable antenna 1a, and the antenna 1a is connected to a communication unit 13 having a modulation / demodulation function. A central processing unit (CPU) 10 for the system is a system control unit that controls the operation of each unit of the mobile phone 1 by executing a telephone function program, and indicates an elapsed time during operation or specifies a specific time. A timer that generates a timer interrupt at the time interval is provided. Further, the system CPU 10 performs musical tone generation related processing described later. The system RAM 11 is a RAM (Random Access Memory) in which a music data storage area composed of a plurality of parts downloaded from a download center or the like, a user setting data storage area, a work area of the system CPU 10, and the like are set. The system ROM 12 is a ROM (Read Only Memory) in which various data such as various telephone function programs executed by the system CPU 10 and incoming telephone function programs, musical tone generation related processing, preset music data, and the like are stored.
[0012]
The communication unit 13 demodulates a signal received by the antenna 1a, modulates a signal to be transmitted, and supplies the modulated signal to the antenna 1a. The received signal demodulated by the communication unit 13 is decoded by the voice processing unit (coder / decoder) 14, and the call signal input from the microphone 21 is compressed and encoded by the voice processing unit 14. The voice processing unit 14 performs high-efficiency compression coding / decoding of voice, and is, for example, a CELP (Code Excited LPC) system or ADPCM (adaptive differential PCM coding) coder / decoder. The tone generation unit 15 generates and outputs a ringing melody and a holding tone by emitting a reception signal from the voice processing unit 14 from the reception speaker 22 or reproducing music data. The incoming melody is emitted from the incoming speaker 23, and the hold tone is mixed with the incoming signal and emitted from the incoming speaker 22.
[0013]
The music data is composed of timbre data, tempo data, and multi-part note data. The musical sound generation unit 15 reproduces musical sounds based on the music data, and at this time, a FIFO for storing musical note data is provided therein. This FIFO may have a storage capacity capable of storing note data for one song, but when the storage capacity is small and note data for one song cannot be stored, when a predetermined amount of empty area is generated in the FIFO, The musical tone generation unit 15 may give an interrupt request signal (IRQ) to the system CPU 10, and the system CPU 10 may read the continuation of the note data stored in the RAM 11 or the ROM 12 and transfer it to the musical tone generation unit 15.
[0014]
Further, the interface (I / F) 16 is an interface for downloading music data including one or more sequence data from an external device 20 such as a personal computer. The input unit 17 is an input unit that includes dial buttons and various buttons “0” to “9” provided in the mobile phone 1. The display unit 18 is a display that displays a menu corresponding to a telephone function or a button operation such as a dial button. The vibrator 19 is a vibrator that informs the user of an incoming call by vibrating the main body of the mobile phone 1 instead of a ringtone when receiving an incoming call. Each functional block exchanges data and commands via the bus 24.
[0015]
Next, FIG. 2 shows a first configuration of the tone generation unit 15 in the mobile phone 1 according to the embodiment of the present invention. In the first configuration, the tone generation unit 15 has a sequence function. In addition, the data structure of the music data reproduced by the musical sound generation unit 15 is shown in FIG. 3, and this data structure will be described first.
The music data shown in FIG. 3 is music data stored in the system RAM 11 or the system ROM 12. As shown in the drawing, the music data has a data structure in which a header is arranged at the head, followed by timbre data, tempo data, and note data for each part, and finally, end data is arranged. The note data consists of a mix of note data for each part.As shown in the figure, note data consists of part data indicating the part to which it belongs, scale data consisting of note information and octave information, and up to the next note data. Interval data indicating time length is composed of pronunciation length data composed of sound length information such as quarter notes and eighth notes. The rest is represented by interval data.
[0016]
The resolution of interval data and pronunciation length data in note data is based on tempo data. If the tempo data is different, the actual time shown will be different even if the interval data and the pronunciation length data are the same. Become. In addition, a mark is inserted between the note data. This mark indicates that the note data sandwiched between the marks is note data of a chorus pattern. That is, by extracting only the note data sandwiched between marks, it is possible to reproduce only the note data of the chorus pattern. This mark does not only indicate the note data of the chorus pattern, but the note data of the pattern may be indicated by sandwiching the note data such as the intro pattern, the main pattern, or the ending pattern.
[0017]
In addition, since it is possible to detect the end of the music data by detecting the end data arranged at the end of the music data, if there is music data to be reproduced next, this music Data can be prepared for playback.
Furthermore, although the music data is composed of a plurality of parts, the parts are, for example, four parts including a melody part, accompaniment part 1, accompaniment part 2 and rhythm part. Such music data can be downloaded from a distribution center or the like via the base station 2 shown in FIG. The downloaded music data is stored in the system RAM 11. The base station 2 is provided with a base station antenna 2a.
[0018]
In the mobile phone 1 according to the embodiment of the present invention, music data having the data structure shown in FIG. 2 is sequentially read out for a plurality of music pieces and can be reproduced in a predetermined order. In this case, a program playback mode, a random playback mode, and a loop playback mode are prepared as playback modes. In the program playback mode, a medley list for program playback shown in FIG. 6A is created in advance. This medley list includes a program number (PN) for determining the order of music data to be reproduced, a music number (No) for designating music data to be reproduced, and a loop number LN indicating the number of times the designated music data is repeatedly reproduced. , It is composed of all / rust information for instructing whether to reproduce all of the designated music data or only the chorus pattern.
[0019]
In the random playback mode, the music data specified at random is played back by the system CPU 10 performing calculations based on a predetermined rule. In this case, instead of designating only the music number at random, the loop number and all / sabi information may be set at random and reproduced.
Further, in the loop playback mode, a medley list for loop playback shown in FIG. 6B is created in advance. In this medley list, since the music data to be reproduced is one music, the program number (PN) is only “1”, and the music number for designating the music to be reproduced and the designated music data are repeatedly reproduced. It is composed of a loop number (LN) indicating the number of times, and all / rust information for instructing whether to reproduce all of the designated music data or only the chorus pattern. However, although the loop number “50” in the medley list shown in FIG. 6B is a default value, the loop number is not limited to “50”, and an arbitrary numerical value can be set.
[0020]
The musical tone generator 15 having the first configuration shown in FIG. 2 is set to any one of the program playback mode, random playback mode, and loop playback mode described above, and generates a melody sound.
As shown in FIG. 2, the tone generator 15 includes an interface (I / F) 30, a FIFO (First-In First-Out) 31, a sequencer 32, a sound source 33, a digital / analog converter (DAC) 34, and an OR circuit 35. It is comprised by.
The interface 30 is coupled to the system CPU 10 via the bus 24, and music data read from the system RAM 11 or the system ROM 12 under the control of the system CPU 10 is written to an internal data register via the bus 24. In this case, when the program playback mode or the loop playback mode is set, the system CPU 10 reads the music data in the order based on the medley list created in advance. When the chorus is designated as all / chorus information of the music data read in the medley list, the system CPU 10 reads the chord pattern note data sandwiched between marks and transfers it to the interface 30.
[0021]
When the random playback mode is set, the system CPU 10 performs calculation based on a predetermined rule, thereby reading out the music data designated at random and transferring it to the interface 30. The musical note data (Data) of the music data written to the data register of the interface 30 is written to the FIFO 31, and the timbre data of each part of the music data written to the data register is transferred to the sound source 33. .
The registers built in the interface 30 include a sequencer control register, a data register, and a status register. The sequencer control register is a register in which sequencer control data for controlling the sequencer 32 is written by the system CPU 10. The sequencer control data written to the sequencer control register includes sequencer start instruction data (Start) for instructing the start of music playback and sequencer stop instruction data (Stop) for instructing the stop of music playback. .
[0022]
The data register is a register in which music data is temporarily written by the system CPU 10, and note data among the music data written in the data register is written in the FIFO 31, and timbre data is written in the sound source 33. Tempo data (Temp) is transferred to the sequencer 32.
Further, the status register is a register indicating the tone generation state of the tone generator 15. This status register includes a note data empty flag (Empty) output from the FIFO 31 and a music data end flag (END) output from the sequencer 32. This status register is a register read by the system CPU 10.
[0023]
The FIFO 31 has a capacity of, for example, 32 bytes (32 × 8 bits), and the note data of the music data selected from the system CPU 10 is sequentially written via the data register of the interface 30 and the note data is written in the order of writing. Are sequentially read by the read request signal (Req) of the sequencer 32. The note data read by the sequencer 32 is discarded from the FIFO 31. The FIFO 31 has a function of monitoring the data amount of stored note data in addition to the FIFO function, and the data amount of the note data is set in advance by the system CPU 10 (for example, 8 bytes). It has a function of generating a note data empty signal (Empty) and setting a note data empty flag in the status register of the interface 30 when the following occurs. This note data empty signal is notified to the system CPU 10 as an interrupt request signal (IRQ) via the OR circuit 35.
[0024]
When the sequencer start instruction data is written from the system CPU 10 to the sequencer control register of the interface 30, the sequencer 32 is instructed to start the sequencer (Start) and operates as follows. However, prior to the sequencer start instruction, the tempo data (Temp) is transferred to the sequencer 32, the tone color data of each part is written in the sound source 33, and some note data is written in the FIFO 31. There is a need.
[0025]
First, the sequencer 32 captures the first note data stored in the FIFO 31. The first note data is usually only interval data for the first pronunciation. Waiting for the waiting time based on this interval data and tempo data to be reached, the next note data is taken in, and the scale data is taken. Based on the sound production length data, sound generation parameters such as key-on, key-off, and key code are generated and supplied to the sound source 33. Also, the next note data that follows at this timing is taken in, and preparation for the next reproduction is made. This preparation for reproduction is management of time corresponding to the captured note data, and time management is performed based on tempo data and interval data. The sound source 33 generates a musical tone of the part indicated by the sound generation parameter based on the supplied sound generation parameter. In this case, the tone color of the musical tone generated by the part is the tone color of the part set in advance by the tone color data supplied from the interface 30.
[0026]
Then, after the time corresponding to the pronunciation length data included in the note data has elapsed, the reproduction by the sound source 33 is stopped. Next, the same generation process is performed on the next note data. Such generation processing is performed until the end data is detected. When the end data is detected, the sequencer 32 and the sound source 33 stop the operation and clear all data in the FIFO 31. Also, a music data end signal (END) is generated, and a music data end flag is set in the status register of the interface 30. By referring to this flag, the system CPU 10 reads the music data in the order to be reproduced next from the system RAM 11 or the system ROM 12 and transfers the music data to the interface 30. Thereby, it is possible to generate a melody sound obtained by reproducing a plurality of music data or a melody sound obtained by repeatedly reproducing the same music data. Such a generation process is terminated when the incoming call button of the input unit 17 is operated on the mobile phone 1 or when the hold release operation is performed. It is also terminated when the communication line is disconnected.
[0027]
The sound source 33 generates and outputs PCM waveform data composed of a plurality of parts based on sound generation parameters such as key-on, key-off, and key code. The PCM waveform data is converted into an analog musical tone signal by a digital / analog converter (ADC) 34. When this musical sound signal is used as a melody sound for notifying an incoming call, the generated melody sound is emitted from the incoming speaker 23. When the musical sound signal is used as a melody sound for notifying the hold, the reproduced melody sound (sending hold sound for transmission) is supplied to the voice processing unit 14, and is subjected to high-efficiency compression coding and transmitted to the other party. The
[0028]
The OR circuit 35 generates an interrupt request signal (IRQ) to the system CPU 10 based on a note data empty signal (Empty) output from the FIFO 31 when the note data in the FIFO 31 becomes a predetermined amount or less. Further, the OR circuit 35 generates an interrupt request signal (IRQ) to the system CPU 10 based on the music data end flag (END) output from the sequencer 32. Upon receiving the interrupt request signal (IRQ), the system CPU 10 refers to the flag in the status register of the interface 30 to investigate the cause of the interrupt request signal (IRQ) and perform processing corresponding thereto. At this time, when the note data empty flag is set and it is detected that the cause of the interrupt request signal (IRQ) is an insufficient amount of note data in the FIFO 31, for example, transfer of note data of 32 bytes-8 bytes = 24 bytes. Is performed by the system CPU 10. In the transfer of the note data, subsequent note data is read from the system RAM 11 or the system ROM 12 and transferred. The transfer of 24-byte note data is not necessarily performed immediately, and it is not always necessary to transfer all 24 bytes. The musical sound generation unit 15 may transfer the playback sound at a timing and transfer amount at which the playback sound can be played back without interruption.
If the music data end flag is set in the status register of the interface 30, the music data in the order to be reproduced next is read from the system RAM 11 or the system ROM 12, and the music data is transferred to the interface 30.
[0029]
As described above, in the tone generation unit 15 shown in FIG. 2, when the system CPU 10 issues a melody tone reproduction start instruction, the sequencer 32 detects this and starts generating the melody tone. When the system CPU 10 issues a playback start instruction, when the mobile phone 1 receives an incoming call notification and starts playing a ringtone (ringtone melody), the hold operation key is operated to start playing the holdtone. This is the case.
[0030]
Next, FIG. 4 shows a second configuration of the tone generation unit in the mobile phone 1 according to the embodiment of the present invention shown in FIG. In the tone generator 115 of the second configuration, the system CPU 10 is responsible for the sequence function. The music data reproduced by the tone generator 115 having the second configuration has the data configuration shown in FIG.
The tone generator 115 having the second configuration shown in FIG. 4 is set to any one of the program playback mode, random playback mode, and loop playback mode described above to generate a melody sound.
[0031]
As shown in FIG. 4, the musical sound generation unit 115 includes an interface (I / F) 130, a sound source 133, and a digital / analog converter (DAC) 134.
The interface 130 is coupled to the system CPU 10 via the bus 24, and the sound generation parameters generated by the system CPU 10 are connected to the internal data via the bus 24 together with the timbre data in the music data read from the system RAM 11 or the system ROM 12. • It is written to the register. The sound generation parameters are generated by the system CPU 10 executing a sequence processing program based on the music data read from the system RAM 11 or the system ROM 12.
[0032]
The interface 130 supplies the written sound parameters to the sound source 133 and also supplies timbre data to the sound source 133. The sound source 133 generates a musical tone of the part indicated by the sound generation parameter based on the supplied sound generation parameter. In this case, the tone color of the musical tone generated by that part is the tone color of the part set by the tone color data supplied from the interface 130. The sound source 133 generates and outputs PCM waveform data composed of a plurality of parts by sequentially supplying sound generation parameters such as key-on, key-off, and key code. The PCM waveform data is converted into an analog musical tone signal by a digital / analog converter (ADC) 134. When this musical sound signal is used as a melody sound for notifying an incoming call, the generated melody sound is emitted from the incoming speaker 23. When the musical sound signal is used as a melody sound for notifying the hold, the reproduced melody sound (sending hold sound for transmission) is supplied to the voice processing unit 14, and is subjected to high-efficiency compression coding and transmitted to the other party. The
[0033]
A music reproduction process including a sequence process executed by the system CPU 10 that supplies sound generation parameters to the musical tone generation unit 115 having the second configuration will be described below.
System CPU 10 starts generating a melody sound when an incoming notification is detected in mobile phone 1 and when hold is detected by operating a hold operation key. First, the system CPU 10 reads music data for generating a melody sound from the system RAM 11 or the system ROM 12. Here, when the program playback mode or the loop playback mode is set, the system CPU 10 reads the music data from the system RAM 11 or the system ROM 12 in the order based on the medley list created in advance. When the chorus is designated as the total / chorus information of the music data read in the medley list, the system CPU 10 reads the note data of the chorus pattern sandwiched between marks. When the random playback mode is set, the music data designated at random is read by the system CPU 10 performing an operation based on a predetermined rule.
[0034]
The timbre data of each part in the read music data is written to the interface 130. The system CPU 10 interprets the first note data in the read music data, but the first note data is usually only interval data for performing the first pronunciation. Therefore, after waiting for the waiting time based on the interval data and the tempo data read from the system RAM 11 or the system ROM 12 to be reached, the next note data is read out, and the key-on, Sound generation parameters such as key-off and key code are generated and written to the interface 130. Next, the subsequent next note data is read out to prepare for the next reproduction. This preparation for reproduction is management of time corresponding to the subsequent note data, and time management is performed based on tempo data and interval data. Note that the interface 130 supplies the written sound parameter to the sound source 133, and the sound source 133 generates a musical tone of the part indicated by the sound parameter based on the supplied sound parameter. In this case, the tone color of the musical tone generated in that part is the tone color of the part set in advance with the tone color data supplied from the interface 130.
[0035]
Then, the system CPU 10 stops reproduction by the sound source 133 after waiting for the time corresponding to the pronunciation length data included in the note data to elapse. Next, the same music reproduction process is performed on the next read note data. The system CPU 10 performs such a music reproduction process until the end data is detected. When the end data is detected, the system CPU 10 reads out the music data in the order to be reproduced next from the system RAM 11 or the system ROM 12 and reproduces the music. Repeat the process. This music reproduction process is terminated after the incoming call button of the input unit 17 is operated on the mobile phone 1 or the hold release operation is performed. Thereby, when the program playback mode or the loop playback mode is set, it is possible to generate a melody sound in which the music data is played back in the order based on the medley list. When the loop playback mode is set, a melody sound can be generated by repeatedly playing the same music data.
[0036]
Next, in the telephone terminal device of the present invention, the music playback related processing when the music playback unit has the first configuration having the sequence function is shown in FIG. 5, FIG. 7, and FIG. This will be described with reference to a flowchart.
FIG. 5 shows a music reproduction order programming process, and a medley list is created by this process.
When the music reproduction order programming process is activated, the program number register PN is set to “1” in step S1. Next, in step S2, it is determined whether or not a medley is instructed to generate a melody sound from a plurality of music pieces. If it is determined that medley is instructed, it is determined in step S3 whether or not the random playback mode is set. If it is determined in this step that the program playback mode is set instead of the random playback mode, the process proceeds to step S4 where the music number to be selected is set, and the music data of the music number selected in step S5 is repeatedly played back. The number of loops is set, and further, in step S6, whether to reproduce the entire music data or only the chorus pattern is set. Thereby, the reproduction information regarding the music data of the program number 1 (PN = 1) is set. Next, in step S7, it is determined whether or not all music data settings for generating a melody sound have been completed.
[0037]
If the setting of the music data for generating the melody sound has not been completed, the process branches to step S11 and the program number register PN is incremented by “1” to be the program number 2 (PN = 2). The Then, returning to step S4, the processing from step S4 to step S6 is repeatedly executed, and reproduction information relating to the music data of program number 2 (PN = 2) is set. Such processing is repeatedly performed until the setting of the music data for generating the melody sound is completed until the music reproduction order programming process is completed.
[0038]
The process described above is a process for creating a medley list in the program playback mode. When the process described above is performed, for example, a medley list shown in FIG. 6A is created. In this medley list, program numbers PN are 1 to 4, and music data is selected in each program number PN. The music number of the first music data is set to “1”, the loop number LN is set to “2”, and it is set to reproduce only the chorus pattern. The music number of the second music data is set to “5”, the loop number LN is set to “1”, and the entire music data is set to be reproduced. The music number of the third music data is “2”, the loop number LN is “1”, and only the chorus pattern is set to be reproduced. The music number of the last music data is “4”, the loop number LN is “2”, and only the chorus pattern is set to be reproduced. As a result, when the program playback mode is set, the music data is played back in the order of the music numbers “1”, “5”, “2”, and “4” based on this medley list to generate a melody sound. .
[0039]
By the way, if it is determined in step S2 that the medley is not instructed, the process branches to step S8 to set the music number to be selected, and then the entire music data of the music number selected in step S9 is reproduced. Set whether to play only the chorus pattern. The processes in steps S8 and S9 are a process for creating a medley list in the loop reproduction mode. When the process described above is performed, for example, a medley list shown in FIG. 6B is created. In this medley list, the program number PN is only 1, and one piece of music data is selected. The music number of this music data is set to “3”, the loop number LN is set to “50”, and it is set to reproduce all of the music data. Note that the loop number LN that can be repeated 50 times is a default value, and of course, the loop number can be set to an arbitrary numerical value. As a result, when the loop playback mode is set, the music data of the music number “3” is repeatedly played based on this medley list to generate a melody sound.
[0040]
Further, if it is determined in step S3 that the random playback mode is set, the random playback mode is set in step S10. Here, no medley list is created. When the random playback mode is set, the system CPU 10 performs a calculation based on a predetermined rule, whereby the music data designated at random is sequentially played back and a melody sound is generated.
[0041]
FIG. 7 is a flowchart of the music reproduction main process.
When the music playback main process is started, it is determined in step S21 whether or not a music playback trigger has been detected. The music playback trigger in this case is determined to be a music playback trigger when an incoming notification is detected in the mobile phone 1 and when a hold operation is performed by operating the hold operation key. If it is determined that there is an incoming call or a hold operation and there is a music playback trigger, it is determined in step S22 whether or not the random playback mode is set. If the program playback mode or loop playback mode is set, the program number register PN is set to “1” in step S23, and the data of the program number 1 in the medley list is accessed. If the random playback mode is set, the process branches to step S30 and the system CPU 10 performs a calculation based on a predetermined rule, whereby a music number is selected at random.
[0042]
Next, in any case, the timbre data and tempo data of the music number set in the program number 1 or the music data selected at random in step S24 are read from the system RAM 11 or the system ROM 12. It is transferred to the tone generator 15. Further, in step S25, the note data in the music data is transferred from the head to the musical sound generating unit 15 until the FIFO 31 is full. At this time, if the program number 1 is set to reproduce only the chorus pattern, the note data of the chorus pattern sandwiched between marks is transferred from the head until the FIFO 31 is full. The system CPU 10 detects how far the data has been transferred and stores the head address of the music data to be transferred next.
[0043]
In this case, in the random playback mode, it may be determined at random whether all the music data is played or only the chorus pattern is played. Next, the loop number LN in the program number 1 is stored in step S26. In this case, in the random playback mode, the loop number may be determined by a random value. In step S27, the system CPU 10 transfers a reproduction start command (Start) to the musical sound generation unit 15. As a result, the musical sound generation unit 15 starts generating the melody sound by playing the musical sound based on the transferred tone color data, tempo data, and note data.
[0044]
Music reproduction in the musical sound generation unit 15 is executed until a music end trigger is detected in step S28. The music end trigger is detected when the incoming call button of the input unit 17 is operated on the mobile phone 1 or when the hold release operation is performed. It is also detected when the communication line is disconnected or when all the programmed music data has been reproduced. Here, when a music end trigger is detected, a playback stop command (Stop) is transferred to the tone generator 15 in step S29, and the operation of the tone generator 15 is stopped and cleared. Then, the music playback main process ends. If the music playback trigger is not detected in step S21, the music playback main process is terminated.
[0045]
By the way, the music sound generation unit 15 may send an interrupt request signal (IRQ) to the system CPU 10 during reproduction of music data. FIG. 8 shows a flowchart of the interrupt request process (IRQ process) executed at this time. This interrupt request process is performed between step S27 and step S28 of the music reproduction main process.
When the system CPU 10 detects the interrupt request signal (IRQ), the interrupt request processing is started, and the interrupt request signal is referred to by referring to the note data empty flag in the status register of the interface 30 in the tone generator 15 in step S41. It is determined whether or not the cause of (IRQ) is a note data empty signal (Empty). Here, if the note data empty flag is set, the note data amount of the FIFO 31 is insufficient, so that the subsequent note data is transferred to the musical tone generation unit 15 in step S48. Then, the interrupt request process ends.
[0046]
If the music data end flag is set in the status register of the interface 30 instead of the note data empty flag, it is determined No in step S41 and the process proceeds to step S42. That is, when the reproduction of the music data of one song is completed, the process proceeds to step S42, and it is determined whether or not the random reproduction mode is set in step S42. If the program playback mode or the loop playback mode is set, the process proceeds to step S43 and the loop number register LN is decremented by one. Next, in step S44, it is determined whether or not the value of the loop number register LN has become “0”. If it is determined that LN = 0, the music data has been played the set number of times, and the program number is incremented by 1 in step S45, and the next program number in the medley list is accessed. Will come to be.
[0047]
Next, the process proceeds to step S46, and the timbre data and tempo data in the music data set in the next program number are read from the system RAM 11 or the system ROM 12 and transferred to the musical tone generation unit 15. Further, in step S47, the note data in the music data is transferred from the head to the musical sound generating unit 15 until the FIFO 31 is full. At this time, if the program number is set to reproduce only the chorus pattern, the note data of the chorus pattern sandwiched between marks is transferred from the head until the FIFO 31 is full. The system CPU 10 detects how far the data has been transferred and stores the head address of the music data to be transferred next. As a result, the music data set in the next program number is played back, and the interrupt request process ends.
[0048]
If it is determined in step S44 that LN ≠ 0, step S45 is skipped and the process proceeds to step S46. In step S46, the timbre data and tempo data in the music data that has been reproduced are read from the system RAM 11 or the system ROM 12 again and transferred to the musical tone generation unit 15. Further, in step S47, the note data in the music data is transferred from the head to the musical sound generating unit 15 until the FIFO 31 is full. At this time, if the program number is set to reproduce only the chorus pattern, the note data of the chorus pattern sandwiched between marks is transferred from the head until the FIFO 31 is full. The system CPU 10 detects how far the data has been transferred and stores the head address of the music data to be transferred next. As a result, the same music data is repeatedly reproduced until the loop number LN becomes “0”, and the interrupt request process ends.
[0049]
Further, if it is determined in step S42 that the random playback mode is set, the process branches to step S49 and the system CPU 10 performs a calculation based on a predetermined rule, so that a music number is randomly selected. Proceed to step S46. In step S46, the tone color data and tempo data in the music data selected at random are read from the system RAM 11 or the system ROM 12 and transferred to the musical tone generation unit 15. Further, in step S47, the note data in the music data is transferred from the head to the musical sound generating unit 15 until the FIFO 31 is full. At this time, if the program number is set to reproduce only the chorus pattern, the note data of the chorus pattern sandwiched between marks is transferred from the head until the FIFO 31 is full. The system CPU 10 detects how far the data has been transferred and stores the head address of the music data to be transferred next. As a result, the music data selected at random is played back, and the interrupt request process ends.
[0050]
As described above, the music reproduction related processing and the telephone function processing in the telephone terminal device of the present invention are realized by the system CPU 10 executing the program. Such a program is preset in the system ROM 12 but may be installed in the system RAM 11 from the external device 20. If the program is installed from the external device 20 in this way, the program can be easily replaced or upgraded. In this case, the external device 20 may be a removable disk drive such as a CD-ROM, MO, and HDD.
[0051]
Further, the sound source 33 (133) in the musical sound generation unit 15 (115) described above can be configured by a frequency modulation type sound source, that is, an FM sound source. The FM sound source uses harmonics generated by frequency modulation for synthesizing musical sounds, and can generate a waveform having a harmonic component including anharmonic sound with a relatively simple circuit. The FM sound source can generate a wide range of musical sounds from synthesized sounds of natural musical instruments to electronic sounds.
The FM sound source uses an oscillator called an operator that oscillates a sine wave equivalently, and the FM sound source can be configured by cascading the first operator and the second operator. Also, the FM sound source can be configured even if the operator's own output is fed back and input.
[0052]
Furthermore, the sound source method of the sound source 33 (133) in the tone generation unit 15 (115) is not limited to the FM sound source method, but a waveform memory sound source (PCM sound source, ADPCM sound source) method, a physical model sound source method, or the like. The sound source may be a hardware sound source using a DSP or the like, or a software sound source that executes a sound source program.
Note that the telephone terminal device of the present invention is not applied only to the above-described mobile phone, but can be applied to an information device including a musical sound generating unit, a personal computer including a musical sound generating unit, and the like.
[0053]
【The invention's effect】
As described above, the present invention can generate a melody sound by reproducing a plurality of pieces of music data in a pre-programmed order or a random order. In this case, it is possible to set the playback order of each music data and the number of times of loop playback, playback of all music data, or part of the chorus pattern, etc., so that the user can generate his / her favorite melody sound. Can do.
Also, one of a program playback mode that plays back multiple pieces of music data as programmed, a random playback mode that plays back multiple pieces of music data in random order, and a loop playback mode that plays back one piece of music data repeatedly Since the reproduction mode can be selected to generate a melody sound, the melody sound in various modes can be notified.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration example of an embodiment when a telephone terminal device of the present invention is applied to a mobile phone.
FIG. 2 is a diagram showing a first configuration of a tone generation unit of the mobile phone according to the embodiment of the present invention.
FIG. 3 is a diagram showing a data structure of music data reproduced by a musical tone generation unit of the mobile phone according to the embodiment of the present invention.
FIG. 4 is a diagram showing a second configuration of the musical tone generation unit of the mobile phone according to the embodiment of the present invention.
FIG. 5 is a flowchart of a music reproduction order programming process when the mobile phone according to the embodiment of the present invention is a musical tone generator of the first configuration.
6 is a diagram showing a medley list created by the music playback order programming process shown in FIG. 5. FIG.
FIG. 7 is a flowchart of a music playback main process when the mobile phone according to the embodiment of the present invention is a musical tone generator of the first configuration.
FIG. 8 is a flowchart of an interrupt request (IRQ) process when the mobile phone according to the embodiment of the present invention is a musical tone generator of the first configuration.
[Explanation of symbols]
1 cellular phone, 1a antenna, 2 base station, 2a antenna, 10 system CPU, 11 system RAM, 12 system ROM, 13 communication unit, 14 voice processing unit, 15 musical sound generation unit, 17 input unit, 18 display unit, 19 vibrator , 20 External device, 21 Microphone, 22 Reception speaker, 23 Incoming speaker, 24 bus, 30 interface, 31 FIFO, 32 Sequencer, 33 Sound source, 34 Digital / analog converter, 35 OR circuit, 115 Musical sound generator, 130 Interface, 133 Sound source, 134 Digital / analog converter

Claims (3)

A telephone terminal device capable of informing a notification sound with a melody sound,
Storage means capable of storing a plurality of music data;
Storage means capable of storing a plurality of music data and a medley list;
Control means for sequentially reading a plurality of music data from the storage means based on the medley list and transferring the music data to the musical sound generation means when the notification sound is instructed to start;
Playing music data transferred from the control means, and generating a melody sound;
The medley list includes order information on the order of reproducing the plurality of music data, designation information for designating music data to be reproduced, number of times information for repeatedly reproducing the designated music data, and all of the designated music data. Instruction information for instructing whether to reproduce or only a part of the information is to be reproduced, and each of these pieces of information can be set. The control means is designated by the designation information based on the order information. The telephone terminal apparatus is characterized in that the music data is read out and all or part of the music data indicated by the instruction information is transferred to the musical sound generating means at the number of times indicated by the frequency information.   2. The telephone terminal device according to claim 1, wherein a part of the music data indicated by the instruction information is instructed by sandwiching a part of the note data of the music data with a mark. A telephone terminal device capable of informing a notification sound with a melody sound,
Storage means capable of storing a plurality of music data and a medley list;
Control means for sequentially reading out a plurality of music data from the storage means according to a set mode and transferring the music data to the musical sound generation means when an instruction to start the notification sound is given;
Playing music data transferred from the control means, and generating a melody sound;
The medley list includes order information on the order of reproducing the plurality of music data, designation information for designating music data to be reproduced, number of times information for repeatedly reproducing the designated music data, and all of the designated music data. If the mode is set to the program playback mode, the control information can be set. The means reads the music data designated by the designation information based on the order information, and transfers all or a part of the music data indicated by the instruction information to the musical tone generation means at the number of times indicated by the frequency information. In the case where the mode is set to the random playback mode, the control means may select a plurality of songs from the storage means in a random order. Sequentially reads out over data, telephone terminal apparatus characterized by being adapted to transfer to said tone generation means.

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