JP2002341872A - Communication terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication terminal which can play back a musical composition having a tone of great individuality by using captured sampling data in a sound source. SOLUTION: A voice processing part 8 has a function to sample a voice signal inputted from a transmission microphone 9 and a microphone 10 besides the coding/decoding processing of the voice signal, and store it in a system RAM 3. A waveform memory sound source is provided in a musical composition playback part 12. An incoming call melody and a holding tone having the tone of great individuality are played back by using tone data created by making the voice signal sampled by the voice processing part 8 into a material in the waveform memory sound source, or using long stream data consisting of the voice signal sampled over the long period of time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal such as a portable telephone, and more particularly to a music reproduction function.

[0002]

2. Description of the Related Art Conventionally, in a portable communication terminal such as a portable telephone or a PHS, a music file preset in a device, a music file created by a user, or a music file (SMF) acquired from a server such as a distribution center.
(Standard MIDI File), SMAF (Synthetic music)
It is known that a ring tone is generated by driving a sound source based on a mobile application format (Sequence data file such as MFi). In addition, a voice that has been recorded and registered in advance (the voice to be recorded is not limited to a human voice, but is collectively referred to as “voice” in this specification), and is played back as a ringtone melody. It is also known (JP-A-2-78349, JP-A-10-17)
8679, JP-A-10-313351, JP-A-11-88211, etc.).

[0003]

When a ringtone melody or the like is reproduced based on a music file, the music is often selected from the latest hit chart, and the popularity of the music tends to be biased. Therefore, there is a case where there is no personality and it is not possible to identify whether or not an incoming call is received at a place where a large number of mobile communication terminal owners are gathered. Also, most of the types that play recorded sound (sampling) and use it as a ring melody simply play the sampled sound as it is, adding an envelope to the sampled sound and changing the pitch. And the like, and the sampled voice could not be used as timbre data.

Accordingly, an object of the present invention is to provide a communication terminal capable of reproducing music having a unique timbre by enabling sampled voice to be used as a material of timbre data.

[0005]

To achieve the above object, a communication terminal according to the present invention comprises a control unit, a storage unit, a communication unit, a voice processing unit, a display unit, an operation unit, and a music composition. A communication terminal having a playback unit, wherein the music playback unit has a waveform memory type sound source that generates a musical tone using waveform data stored in a waveform memory, and the audio processing unit is input via a microphone. Has the function of sampling audio signals
By using the sampled audio waveform data in the sound source of the waveform memory system, a musical tone using the sampled audio waveform data can be generated. Further, by sequentially supplying waveform data using the sampled audio waveform data as a material to the waveform memory, a long stream of waveform data is reproduced. Further, there is provided means for creating tone data using the sampled audio waveform data as a material, and music is reproduced using the created tone data. Furthermore, it has a function of editing the sequence data of the music so as to use the created tone color data. Furthermore, it has a function of creating a music file containing the created tone color data and sequence data.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention can be applied not only to portable communication terminals such as portable telephones and PHSs but also to fixed telephones and the like. An example will be described below. FIG.
FIG. 1 is a block diagram illustrating an example of an overall configuration of a mobile communication terminal according to an embodiment of the present invention. In this figure, 1
Is a central processing unit (system C) that controls the entire system.
PU), 2 is a system ROM that stores control programs such as various communication control programs and programs for reproducing music, preset music files and various constant data, and 3 is used as a work area and music. A system RAM 4 stores various data such as files and tone data, and 4 is a liquid crystal display (LC
D) and the like, 5 is an operation unit having a plurality of operation buttons and the like, 6 is a communication unit which is composed of a modulation and demodulation unit and is connected to the antenna 7. Here, the system RAM
It is desirable that the music file storage area and the timbre data storage area in No. 3 be made non-volatile by using a flash memory or by backing up a battery. A function 8 is connected to the transmitting microphone 9, the microphone 10, and the receiving speaker 11 to encode and decode a voice signal for a telephone call, and to sample and capture a voice signal input from the microphones 9, 10. A sound processing unit (sound CODEC) 12 having a sound source and playing back music based on a music file stored in the system RAM 3 or the like; 13 a speaker used for notification of incoming calls; Is headphones,
Reference numeral 15 denotes an external interface circuit for exchanging various data with an external device such as a personal computer or another portable communication terminal. Reference numeral 16 denotes a bus for transferring data between the components.

FIG. 2 shows an example of the internal configuration of the voice processing unit 8. In this figure, reference numeral 21 denotes an A / D converter for sampling an input voice from the transmission microphone 9 by a sampling clock of a predetermined frequency and converting the input voice into digital data; A / D converters 23, 24, 25 for sampling by a sampling clock and converting into digital data
Is a buffer, and 26 is an audio encoding unit that encodes audio data from the A / D converter 21 using an audio encoding method defined by a system such as CELP, VSELP, ADPCM, and outputs the encoded data to the communication unit 6. . Also, 2
Reference numeral 7 denotes an audio decoding unit for decoding audio data demodulated by the communication unit 6 and converted into a baseband signal; 28, a D / A converter for converting the decoded audio data from the audio decoding unit 27 into an analog signal; , 30 are buffers, and 31 is the D / A converter 2 supplied via the buffer 29.
8 is an adder that adds a weighted music signal from the music reproduction unit 12 and the music signal input from the music reproduction unit 12 through the buffer 30 and outputs the result to the receiving speaker 11.

At the time of a telephone call, the transmission voice input from the transmission microphone 9 is sampled by the A / D converter 21 and converted into digital data. Encoding method (for example, C
(ELP method) and output to the communication unit 6. The data received from the communication unit 6 is input to an audio decoding unit 27, where the data is decoded, and then the D / A converter 2
At 8, the signal is converted into an analog signal and output from the receiving speaker 11 via the buffer 29 and the adder 31. At this time, the weight in the adder 31 is, for example, 1 on the buffer 29 side and 0 on the buffer 30 side. When the hold tone is reproduced, the weight of the adder 31 is set to 0.5 on both the buffer 29 side and the buffer 30 side. The 30 side is set to 1.

[0009] In the portable communication terminal of the present invention,
The audio input from the microphones 9 and 10 can be sampled and taken in. At this time,
For example, for an audio signal input from the transmitting microphone 9 corresponding to a stereo left channel (L-ch),
The A / D converter 21 performs sampling at a predetermined sampling period and converts the data into digital data. At the same time, the microphone 1 corresponding to the right channel (R-ch)
The input signal from 0 is sampled by the A / D converter 22 and converted into digital data. Each digital data from the A / D converters 21 and 22 is transferred to the system RAM 3 via a corresponding buffer 24 or 25, respectively.
R-ch of stereo audio waveform data in a predetermined area of
It is stored as L-ch data. Note that the frequency of the sampling clock of the A / D converter 21 and the A / D converter 22 at this time may be different from the sampling frequency during the call. The audio waveform data captured in this way is used as a material for creating new tone data, or as long-stream waveform data after being processed as necessary, as described later. Become.

FIG. 3 is a block diagram showing an example of the internal configuration of the music reproducing section 12. As shown in FIG. A music file is reproduced using the music reproduction unit 12, and can be used as a ringtone melody or a hold tone. In addition, the music file can be played and the music can be appreciated during a non-call. In FIG. 3, reference numeral 41 denotes an interface connected to the bus 16, reference numeral 42 denotes an FM type sound source (polyphonic FM sound source) capable of generating a plurality of channels of musical sounds, and reference numeral 43 denotes a plurality of channels of musical sounds. A sound source of a waveform memory system (polyphonic WT sound source), 44 is a tone ROM that stores tone data of preset tones preset in the portable communication device, and 45 is tone tone data of a tone other than the preset tone. This is a tone RAM that can be used. Here, as the WT sound source 43,
Either the PCM method or the ADPCM method may be used. The timbre ROM 44 stores GM128 timbre timbre data and drum set timbre data as timbre data of preset timbres. The FM tone generator 42 and the WT tone generator 43 have a tone ROM 44.
Alternatively, based on the tone color data stored in the tone RAM 45, tone waveform data of a tone specified by a plurality of tone generation channels is generated.

The timbre data is unique to each timbre, and includes waveform parameters and other data. The waveform parameter indicates a musical tone waveform, a parameter indicating an FM calculation algorithm for an FM sound source, timbre waveform data for a WT sound source,
The start address, loop start address, end address, and the like of the timbre waveform data. Other data include envelope parameters that specify attack rate, decay rate, sustain level, release rate, etc., modulation parameters that specify the depth and speed of vibrato and tremolo, and effects such as reverb, chorus, and variations. And an identifier indicating whether the timbre is a stereo timbre or a monaural timbre.

Further, reference numeral 46 denotes an L for mixing the L-channel tone waveform data of the tone waveform data generated by the FM tone generator 42 or the WT tone source 43.
The L channel mixer 46 is a channel mixer.
Is converted into an analog signal by the D / A converter 47, and then supplied to the headphones 14 as an L-channel output, input to the audio processing unit 8 and supplied to the adder 31, and In this way, sound is emitted from the receiving speaker 11. Reference numeral 48 denotes an R-channel mixer for mixing the R-channel tone waveform data of the tone waveform data generated by the FM tone generator 42 or the WT tone generator 43. The output of the R-channel mixer 48 is a D / A converter. After being converted into an analog signal by the device 49, the signal is supplied to the headphones 14 as an output of the R channel and is emitted from the speaker 13. As described above, in the present embodiment, the music can be reproduced in stereo using the headphones 14 or the receiving speakers 12 and 13.

As described above, in the present embodiment, two microphones 9 and 10 are used to perform stereo sampling of the input voice. By using the stereo-sampled waveform data as the tone color waveform data of the WT sound source, it is possible to reproduce or generate a musical sound waveform having a sense of localization and a sense of spreading naturally. The timbre data created using the simultaneously recorded R-channel and L-channel waveform data as materials have the same timbre name (timbre number) and whether or not it is the R channel.
An identifier (R, L) for identifying the channel is attached. When using the stereo timbre data when reproducing a music, a tone must be generated using two tone channels of a sound source, using timbre waveform data of R channel and L channel having the timbre name. Becomes
In the above description, the transmitting microphone 9 and the receiving speaker 11 are also used for input and output of one stereo channel (L channel). However, the present invention is not limited to this. It may be provided.

FIG. 4 is a diagram showing a file format of music data that can be reproduced by the communication terminal of the present invention. As shown in this figure, in the communication terminal of the present invention, three kinds of music files, (1) a simple sequence file, (2) a sequence file with timbre data, and (3) a stream file, can be reproduced. it can. As described above, these music files are stored in the system ROM 2 as preset melodies in advance, or stored in the music file storage area in the system RAM 3. For example, a music file downloaded from a distribution server, a music file read from an external device via the external interface circuit 15, a new music file created using the operation unit 6, or an existing music file The music file changed or edited by using the unit 6 can be stored in the music file storage area in the system RAM 3.

(1) The simple sequence file has a header part and a sequence data part. The header section includes information such as the number of tracks included in the music file and the time base at the time of reproduction of the music piece. The sequence data section includes event information (MIDI events) and time intervals between the events. A set of information (duration data, delta time) is included in the order of occurrence of the event. Also, the title of the song, comment information, instrument name, lyrics information, etc. can be included. As the simple sequence file, for example, there is a music file in the SMF format.

(2) The sequence file with timbre data includes a header portion, a timbre data portion, and a sequence data portion as shown in the figure. The timbre data portion includes timbre data of timbres used for reproducing the music and timbre assignment information for specifying timbres to be assigned to respective parts. The sequence data section is the same as in the case of the simple sequence file. As the sequence file with timbre data, for example, there is a music file in SMAF format.

(3) The long stream data includes a header section, a long stream data section, and a sequence data section. Here, the long stream data is waveform data sampled for a long time, and has a large size. Further, the sequence data section only includes a set of an event and duration data relating to the start, end, pitch shift, effect, and the like of reproduction, and is very much different from the cases (1) and (2). It is simple data. An example of the long stream file is a music file in the SMAF format.

The following describes how these three types of music files are reproduced. In the present embodiment, the system CPU 1 operates as a sequencer, interprets sequence data included in a music file to be played, and controls the FM sound source 42 or the WT sound source 43 at a timing specified by the sequence data. Although the data is supplied, the sequencer function may be possessed by the music reproducing unit 12, or the system CPU 1 and the music reproducing unit 12 may cooperate to realize the sequencer function. The reproduction using the sampled waveform data, which is a characteristic part of the present invention, is performed by the WT sound source 43.
In the following, the WT is used as a sound source.
Description will be made assuming that the sound source 43 is used.

FIG. 5 is a diagram showing the (1) reproduction of the simple sequence file. In this case, usually, reproduction using the preset tone color is performed. As shown in the figure, sequence data of a simple sequence file (for example, SMF data) selected to be reproduced is sequentially read from the system RAM 3 by the system CPU 1 operating as the sequencer. As described above, the sequence data includes a set of duration data and event data representing a time interval between events, and the system CPU 1 responds to the event at the timing specified by the duration data. The sound source control data is output to the WT sound source 43.

For example, when the read event is a program change message, based on the MIDI channel number and program number (tone number) included in the message, the timbre of the timbre data of the MIDI channel and the timbre assigned to the channel is used. An address of tone color data corresponding to the MIDI channel is set in a tone color table which stores a correspondence relationship with an address in the ROM 44 (or tone color RAM 45). If the read event is a note-on message,
The tone channel of the WT sound source 43 is assigned to the MIDI channel included in the message, and the tone ROM 44 (or tone RA) is referred to by referring to the tone table.
M45), the corresponding tone color data is read out, and the start address of the tone color waveform data is set to the address generator 5.
2, the end address and the loop start address are set in the phase generator 51, the envelope data is set in the envelope generator 54, and the effect data is set in the effector (not shown) (preparation for musical tone generation). Then, the timbre RO is read by the read address output from the address generator 52 via the memory interface circuit 53.
The tone color waveform data is read from M44 (or tone color RAM 45). This read address is stored in the phase generator 51
Is updated by the phase increment value (F number) converted from the note number included in the note-on message, and after reaching the end address, the loop start address is set as an initial value. Controlled. As a result, a musical tone waveform sample having a pitch corresponding to the note number can be read out, and the read musical tone waveform sample data is multiplied by the envelope data from the envelope generator 54 in the multiplier 55. Accordingly, an effect is given by an effector (not shown), and the L-Ch mixer 4 shown in FIG.
6 or R-Ch mixer 48.

Next, the reproduction of the sequence file with timbre data (2) will be described with reference to FIG. As described above, in this case, the sequence file includes timbre data and timbre assignment information for specifying the timbre to be assigned to the part. The system CPU 1 first stores the timbre data in the memory interface of the waveform memory sound source 43. The data is written into the tone RAM 45 via the circuit 53. When tone data of a plurality of timbres is included, the timbre RAM 45 writes the plurality of timbre data. Further, based on the timbre assignment information, the timbre RA of the timbre data corresponding to the part is stored in the timbre table.
Set the address in M45. Then, the sequence data contained in the sequence file is reproduced. This process is performed in the same manner as (1) the process of reproducing a simple sequence file. That is, after allocating the sound channel of the WT sound source based on the note-on message, the tone data corresponding to the part is read out,
The reading of the timbre waveform data is started by setting each part of the sound source. In the case of a program change message, the tone color table is rewritten.

Next, (3) reproduction of a stream file will be described with reference to FIG. (A) of FIG.
Is a diagram showing a state of stream file playback,
FIG. 3B is a diagram for explaining how to reproduce long stream data using the tone color RAM 45.
As described above, (3) the stream file includes long stream data having a large size and sequence data including events for instructing the start, end, pitch shift, effect, and the like of reproduction of the long stream data.

Prior to the reproduction of the stream file, the system CPU 1 first assigns the head of the long stream data to an area of the tone color RAM 45 allocated for sound generation of the long stream data (the start address of this area is assigned to the start address of this area). As, end address Ae
) Through the memory interface circuit 53. Then, processing corresponding to each message is performed according to the sequence data. For example, when a pitch bend message indicating a change in pitch is included, the parameters included in the message are supplied to the phase generator 51. When the note-on message is read, the reading of the long stream data from the tone RAM 45 is started. That is, the read pointer Pr of the address generator 52
Is set to the start address As, and the reading of the long stream data is started while updating the read pointer based on the phase data from the phase generator 51. The read long stream waveform data is output via the memory interface circuit 53 and the multiplier 55.

The reading of the long stream data from the tone color RAM 45 proceeds, and the value of the read pointer Pr of the tone color RAM 45 is set at the center position (address A) of the area allocated for generating the long stream data.
When c) is exceeded (Pr> Ac), the address generator 52 detects this, and notifies the system CPU 1 by, for example, generating an interrupt. As described above, the address generator 52 has a mechanism for detecting when the read address of the waveform memory reaches the end address and reading from the loop address, and using this mechanism, Pr> Ac Can be detected. In response to the interrupt, the system CPU 1 starts writing the subsequent long stream data from the start address As. That is, using the write pointer Pw as the start address As, the subsequent long stream data is written in the area (buffer area 1) up to the central address Ac. This writing is performed in parallel with the reading of the long stream data.

When the reading of the long stream data further proceeds and the value of the read pointer Pr reaches the end address Ae, the address generator 52 sets the value of the read pointer Pr to the start address Ae.
s, and read the subsequent stream data. At this time, the address generator 52 notifies the system CPU 1 that the read address has reached the end address, as in the case described above. As a result, the system CPU 1 stores the subsequent data at the address Ac.
Write to the buffer area 2 at the end address Ae.
Hereinafter, similarly, the long color data can be reproduced using the tone color RAM 45 by dividing the area of the tone color RAM 45 into two and writing the long stream data alternately and sequentially reading the long stream data. Here, the address of the central part of the area storing the tone data is set as the interrupt point. However, the present invention is not limited to this. For example, the number of reproduced samples is counted, When the is reproduced, an interrupt for transferring a subsequent sample may be started.

In the communication terminal of the present invention configured as described above, a process for reproducing music using waveform data sampled using the audio processing unit 8 will be described.
This will be described with reference to the flowchart of FIG. That is, since the music files reproducible in the mobile communication terminal of the present embodiment are the three types described above, in order to use the audio waveform data sampled by the audio processing unit 8 for reproduction, Process.

First, audio data is sampled using the audio processing unit 8 as described above (step S).
1). At this time, it is possible to select whether to sample in stereo using both of the microphones 9 and 10, or to sample in monaural using one of the microphones. The sampled audio data is stored in the system RAM 3 as described above. Next, timbre data is created using the sampled waveform data as a material. If the timbre data is to be used, the process proceeds to step S2. If a long stream reproduction for reproducing the waveform data sampled for a long time is performed. Proceeds to step S6.

First, a description will be given of a case where tone color data created using sampled waveform data as a material is used for reproducing a music file. In this case, in step S2, a process of creating timbre waveform data using the sampled voice data as a material is performed, and an identification number for identifying the timbre is attached to the created timbre waveform data, and the timbre data is generated as timbre data. register. That is, the envelope and pitch fluctuations of the audio data sampled by the audio processing unit 8 are displayed on the display unit 4, and a portion of the displayed audio data to be used as timbre waveform data is cut out. In this case, a process for setting a loop start point and an end point, which are the start and end positions of the loop, and a process for giving a desired envelope are performed. After such processing is completed, the cut-out audio data is assigned a tone color number and stored in the tone data storage area in the system RAM 3 as tone data. When sampling is performed in stereo as described above, the tone color data includes an identifier indicating whether the tone is stereo or monaural.

Next, the process proceeds to step S3, where the sequence data of the music to be reproduced is obtained using the tone color data sampled and registered in step S2. This sequence data is the sequence data included in the (1) simple sequence file or (2) the sequence file with timbre data described above.
Of the music files stored in the music file storage area of the PC, or by downloading from an external distribution server or by inputting from an external device via the interface circuit 15.

(1) When a simple sequence file (for example, an SMF file) is obtained, step S4
To change the sequence data included in the simple sequence file to use the tone color data newly sampled and registered. That is, the program change message included in the sequence data is changed so as to designate the tone number of the newly registered tone data, a new simple sequence file is created, and the music file is stored in the music file storage area in the system RAM 3. Remember. By playing back this simple sequence file as described above, it is possible to play back music using sampled and newly registered timbre data.

On the other hand, when the (2) sequence file with timbre data is obtained, the process proceeds to step S5. Here, the tone data of the obtained sequence file with tone data is changed to the newly registered tone data, and sequence data with new tone data is created,
It is stored in the system RAM 3. That is, the timbre data portion of the obtained sequence file with timbre data is replaced with the timbre data created and registered in step S2, the timbre assignment information is edited to use the timbre data number, and a new timbre data Sequence data is created and stored in a music file area in the system RAM 3. By reproducing the sequence data with timbre data as described above, it is possible to reproduce a music piece using the newly registered timbre data by sampling.

If a stream file is to be created, the process proceeds to step S6 after step S1.
(3) Create a stream file. That is,
The audio data sampled in the step S1 is cut out of a portion to be long stream data, or a process such as adding an envelope or adjusting a level is performed to create long stream data. Then, a message for adding the start and end of the reproduction, the pitch shift, the effect, or the like and the time data thereof are created to create sequence data. next,
The created long stream data and sequence data are combined, a header is added, a stream file is created, and the stream file is stored in the system RAM 3. By reproducing the stream file as described above, the audio data stream sampled by the portable communication terminal can be reproduced.

As described above, according to the present invention, by using the sampled voice waveform data in the waveform memory of the WT sound source, it is possible to reproduce a ringtone melody and a hold tone with rich individuality. For example, when using timbre data created using sampled audio waveform data as a material, assigning the timbre data to a plurality of sounding channels enables multiple reproductions at the same time, such as chorusing from different animals, or a single voice. It is possible to produce various contents such as a gospel chorus.

In the above description, the music file for reproducing the sampled audio data is created in the portable communication terminal. However, a music file using the sampled audio data in a place other than the portable communication terminal is created. You may do so. For example, the audio data sampled by the mobile communication terminal is transmitted to a server provided on a network, and a process of creating or converting the music file shown in FIG. 8 is performed on the server,
The new music file may be sent back to the portable communication terminal. Alternatively, the sampled audio data is transmitted to an external device such as a personal computer connected via the external interface circuit 15 of the portable communication terminal, and the music file is converted or created by the external device. The created music file may be returned to the mobile communication terminal.

In the above description, sampling is performed in stereo. However, the present invention is not limited to this, and sampling may be performed in monaural without providing the microphone 10. Further, in the above description, a portable communication terminal has been described as an example, but the present invention can be applied to a fixed communication terminal or the like.

[0036]

As described above, according to the communication terminal of the present invention, both the generation of the ringing melody based on the sequence data file and the generation of the ringing melody based on the sampled voice can be performed at low cost by sharing hardware. Can be realized. Further, the sampled sound can be processed and reproduced. Further, according to the present invention, sampled voice can be used as a tone color material that can be designated from sequence data. According to the present invention, even when existing sequence data is used, the tone can be changed to the original tone and reproduced. Becomes possible. Furthermore, when used in combination with the multiple-channel simultaneous sound generation mechanism of the waveform memory sound source, a plurality of sounds sampled at different locations and times can be played back in a superimposed manner. The music can be reproduced. Furthermore, when used in combination with a multiple-channel simultaneous sound generation mechanism of a waveform memory sound source, a chord can be generated using one sampled voice, and for example, a gospel chorus-like reproduction can be performed. As described above, according to the present invention, it is possible to provide a communication terminal capable of creating various contents and reproducing a ringtone melody that is rich in individuality and highly distinguishable from others.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration example of a mobile communication terminal that is an embodiment of a communication terminal according to the present invention.

FIG. 2 is a block diagram showing a configuration example of a voice processing unit in the mobile communication terminal shown in FIG.

FIG. 3 is a block diagram illustrating a configuration example of a music reproduction unit in the mobile communication terminal illustrated in FIG. 1;

FIG. 4 is a diagram for explaining a configuration of a music file.

FIG. 5 is a diagram for explaining how a simple sequence file is reproduced.

FIG. 6 is a diagram for explaining how a sequence file with timbre data is reproduced.

7A and 7B are diagrams for explaining reproduction of a stream file, wherein FIG. 7A illustrates a state of reproducing a stream file, and FIG. 7B illustrates a state of reproducing long stream data using the tone RAM 45; FIG.

FIG. 8 is a diagram illustrating a flow of a music file creation process using sampled audio data.

[Explanation of symbols]

1 system CPU, 2 system ROM, 3 system RAM, 8 audio processing unit (audio CODEC), 9, 1
0 microphone, 11, 13 speaker, 12 music playback unit, 14 headphones, 21, 22 A / D converter,
23, 24, 25, 29, 30 buffers, 28 D /
A converter, 42 FM sound source, 43 waveform memory sound source (W
T sound source), 44 tone ROM, 45 tone RAM, 46
L-Ch mixer, 47,49 D / A converter, 48
R-Ch mixer, 51 phase generator, 52 address generator, 53 memory interface circuit, 54 envelope generator, 55 multiplier

Claims (5)

[Claims] 1. A communication terminal having a control unit, a storage unit, a communication unit, an audio processing unit, a display unit, an operation unit, and a music reproduction unit, wherein the music reproduction unit is stored in a waveform memory. A sound source of a waveform memory system for generating a musical tone using the sampled waveform data, wherein the audio processing unit has a function of sampling an audio signal input through a microphone, and A communication terminal characterized by being able to generate a musical tone using the sampled audio waveform data by using it in a waveform memory type sound source. 2. The communication terminal according to claim 1, wherein a waveform data of a long stream is reproduced by sequentially supplying waveform data using the sampled audio waveform data to the waveform memory. 3. The communication terminal according to claim 1, further comprising means for creating timbre data using the sampled audio waveform data as a material, and reproducing the music using the created timbre data. 4. The communication terminal according to claim 3, wherein the communication terminal has a function of editing the sequence data of the music so as to use the created tone color data. 5. The communication terminal according to claim 3, wherein the communication terminal has a function of creating a music file including the created tone color data and sequence data.