JPH05173556A - Speech development device - Google Patents

Abstract

PURPOSE:To obtain the speech development device which easily generates melody data by repetitive PCM in a short time. CONSTITUTION:This speech development device consists of a score editing means 2 which obtains note data 5 from score information 1, a figure editing means 16 which obtains envelope PCM data 6 from the score information 1, a score file 3 stored with the note data 5 and envelope PCM data 6, a CRT display 4 which displays the note data 5 and envelope PCM data 6, a repetitive PCM data generating means 7 which generates repetitive PCM data 8 according to the respective note data 5 and envelope PCM data 6 in the score file 3, a PCM developing means 9 which converts the repetitive PCM data 8 into normal PCM data 10, a D/A converter 11 which converts the PCM data 10 from the PCM development part 9 into an analog signal 12, and a data format converter 13 which converts the repetitive PCM data 8 to the data format of repetitive PCM data 14 matching a melody IC, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voice development device,
In particular, the present invention relates to a voice development device that repeatedly generates PCM data used for a melody IC or the like.

[0002]

2. Description of the Related Art Melody ICs, unlike tape recorders, have no mechanical operating parts and are therefore highly durable. They can be easily searched for and selected, and are incorporated in various devices such as telephones and used as background music. It is used a lot.

However, especially in order to improve the sound quality of the melody data, it is necessary to increase the sampling frequency and the number of bits of AD conversion, which increases the required memory capacity and decreases the number of songs that can be stored in the memory. was there. Therefore, a so-called data compression technique that reduces the required memory capacity without degrading the sound quality is important.

The waveform of the melody tone can be generally represented by a regular waveform such as a sine wave, a triangular wave, a square wave or the like. For example, as shown in FIG. 4, when the original waveform of a melody or an onomatopoeia is a repetition of similar waveforms, the basic portion of the similar waveforms is made into one segment waveform, and the original waveform is repeated by repeating this segment waveform. Repeat the approximate data compression method P
It is called CM method. And (PCM data of the segment waveform)
Since it can be expressed in a data format of × (the number of repetitions of a segment), the amount of data can be significantly reduced compared to the case where all waveforms are expressed in PCM data.

Further, as shown in FIG. 5, the envelope representing the timbre of a melody or onomatopoeia is repeatedly represented by the PCM system as shown in FIG.
It can be approximated by combining the section data that can be represented by (segment waveform) × (number of repetitions) as shown in FIG.

In order to create melody data by the repetitive PCM method, information on the waveform of a segment (waveform shape, amplitude,
After creating section data based on the frequency) and the number of times of repetition, the sections are combined according to the envelope of the desired timbre to complete the data of each note. The repetitive PCM method is a method generally used in melody ICs and the like, and in order to create this kind of melody data, the melody to be created is PCM converted by an A / D converter, stored in a file, and displayed on a CRT. The personal computer is provided with both means for obtaining the waveform information by the waveform display means and inputting the waveform information (segment waveform shape, amplitude, frequency, number of repetitions) for creating the repeated PCM data, as data to the melody IC or the like. The voice developing means to be supplied is already disclosed in "Japanese Patent Application No. 2-164535". This will be described with reference to FIG.

The analog signal 101 of melody or onomatopoeia is
The PCM data 103 is converted by the A / D converter 102. The PCM data 103 is stored in the file 104 by the waveform display means and the CRT display 1
The waveform of PCM data is displayed on 06. CRT106
The waveform information 117, that is, the segment waveform PCM data 108, the repetition number data 109, the amplitude data 110, and the frequency data 110 are obtained based on the waveform of the original sound of the melody / onomatopoeia displayed above. Repeated PCM data creating means 11
2 repeats the PC based on these waveform information 107.
The M data 113 is created and the PCM data waveform is repeatedly displayed on the CRT display 106.

The repeated PCM data 113 is expanded into the PCM data 115 by the PCM expansion unit 114, and further D
The analog signal is converted into an analog signal by the / A converter 116 and can be repeatedly auditioned as a synthesized sound 117 of the PCM system via an amplifier and a speaker. As a result of the trial listening, if there is a problem, the waveform information 117 is corrected, and the PCM data 113 is newly and repeatedly created. When the above processing is performed on all the notes and the repeated PCM data of the melody to be created is completed, the data format converter 120 sets the data format of the repeated PCM data 113 as a target device, for example, the data format 12 of the melody IC or the like.
Converted to 1 and converted to ROM.

[0008]

However, in the above-mentioned conventional example, one note data is created by inputting waveform information (segment waveform shape, amplitude, frequency, number of repetitions) of a plurality of sections according to the approximate envelope. Therefore, in order to complete one melody, it is necessary to create note data for all multiple notes in accordance with the score of the melody, which requires a huge amount of work and time. There was an inconvenience.

[0009]

OBJECTS OF THE INVENTION The object of the present invention is to improve the disadvantages of the conventional example, and to easily repeat PCM particularly in a short time.
To provide a voice development device capable of creating melody data by.

[0010]

Therefore, in the present invention, the score editing means for obtaining the note data from the score information, the figure editing means for obtaining the envelope PCM data from the score information, and the note data and the envelope PCM data are stored. Music score file,
A CRT display for displaying note data and envelope PCM data, a repetitive PCM data creating means for creating repetitive PCM data based on each note data and envelope PCM data in a score file, and a repetitive PCM
A PCM expansion unit that converts data into normal PCM data, a D / A converter that converts PCM data from the PCM expansion unit into an analog signal, and a data format of repeated PCM data suitable for melody IC etc. And a data format converter for converting into This aims to achieve the above-mentioned object.

[0011]

The musical score information of the melody to be created is edited into musical note data by the musical score editing means and into envelope PCM data by the graphic editing means. The note data and the envelope PCM data are stored in the score file and displayed on the CRT display. At this time, it is possible to edit the score and edit the envelope figure for creating a desired tone color on the CRT display. The repetitive PCM data creating means creates repetitive PCM data based on each note data and envelope PCM data in the score file. This repeated PCM data is a PCM that represents the waveform of the segment of the waveform information.
It is composed of encoded fragment waveform PCM data and parameter values of frequency data, amplitude data, and repetition number data. Repeated PCM data is sent to the normal P
Expanded to CM data, further converted to an analog signal by the D / A converter, and repeated P through the amplifier and speaker.
It can be auditioned as a CM-type synthesized sound. If there is a problem as a result of the trial listening, the note data and the envelope PCM data are corrected, and the PCM data is newly repeated. When the above process is automatically performed for all notes,
The repetitive PCM data of the completed melody is processed by a data format converter, for example, a melody I.
It is converted into a data format of repeated PCM data suitable for C and the like.

[0012]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described below with reference to FIGS.

In the embodiment of FIG. 1, the score editing means 2 for obtaining the note data 5 from the score information 1 and the envelope P from the score information 1
Graphic editing means 16 for obtaining CM data 6, and note data 5
And a score file 3 for storing the envelope PCM data 6 and
CRT displaying note data 5 and envelope PCM data 6
Display 4 and note data 5 in score file 3
And repeated PCM based on the envelope PCM data 6
Repeating PCM data creating means 7 for creating data 8
And repeat PCM data 8 to normal PCM data 10
PCM expansion unit 9 for converting to P and P from the PCM expansion unit 9
It comprises a D / A converter 11 for converting the CM data 10 into an analog signal 12, and a data format converter 13 for converting the repetitive PCM data 8 into a data format of repetitive PCM data 14 suitable for a melody IC or the like. .

Next, the operation of this embodiment will be described.

1). The musical score information 1 of the melody to be created is converted into the musical note data 5 by the musical score editing means 2 and the graphic editing means 16
Is edited into envelope PCM data 6.

2). The note data 5 and the envelope PCM data 6 are stored in the score file 3 and displayed on the CRT display 4. At this time, it is possible to edit the musical score and the envelope graphic for creating a desired tone color on the CRT display 4.

3). In the repetitive PCM data creating means 7, each note data 5 in the score file 3 and the envelope PC
The PCM data 8 is repeatedly created based on the M data 6. As shown in FIG. 2, the repetitive PCM data 8 is composed of a segment waveform PCM data 6 obtained by PCM-encoding the segment waveform shape of the waveform information, and frequency data 9, amplitude data 8, and parameter values of the repetition number data 7. It Further, the repetitive PCM data 8 is the repetitive PCM data expansion image 17 by the repetitive PCM section data 15.
Stored in configuration.

4). The repeated PCM data 8 is expanded into normal PCM data 10 by the PCM expansion unit 9, further converted into an analog signal by the D / A converter 11 and repeatedly auditioned as a synthesized sound 12 of the PCM system via an amplifier and a speaker. be able to. As a result of the trial listening, if there is a problem, the note data 5 and the envelope PCM data 6 are corrected, and the PCM data 8 is newly repeated.

5). The above process is performed for all notes.

6). Repeated PCM of completed melody
The data 8 is repetitive PCM in a target device such as a melody IC in the data format converter 13.
RO converted to data format 14 of data 14
M-ized.

In this means, the hardware part is basically the D / A converter 11 and the CRT display 4,
The latter part consists of software.

[0022]

Since the present invention is constructed and functions as described above, according to this, it is possible to automatically create PCM data repeatedly based on the musical score information of the melody desired to be created, which facilitates in a short time. It is possible to provide an unprecedented excellent voice development apparatus capable of repeatedly creating melody data by PCM.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram for explaining a relationship between score data and repeated PCM data.

FIG. 3 is a block diagram showing a conventional example.

FIG. 4 is an explanatory diagram for explaining a repetitive PCM method.

FIG. 5 is an envelope diagram of timbres of melody and onomatopoeia.

FIG. 6 is an approximate waveform diagram according to a repetitive PCM method.

[Explanation of symbols]

 1: Musical score information 2: Musical score editing means 3: Musical score file 4: CRT display 5: Note data 6: Envelope PCM data 7: Repeated PCM data creation means 8: Repeated PCM data 9: PCM development section 10: PCM data 11: D / A converter 12: Synthetic sound output of repetitive PCM method 13: Data format converter to melody IC etc. 14: Repetitive PCM data to melody IC etc. 15: Repetitive PCM section data 16: Graphic editing means 17: Repeated PCM Image of data expansion

Claims (1)

[Claims] 1. Musical note data and envelope PCM from musical score information
Editing means for obtaining data, note data and envelope PC
A musical score file storing M data, a display means capable of displaying and modifying the musical note data and envelope PCM data in the musical score file, and a repetitive PCM based on each musical note data and envelope PCM data in the musical score file. Voice development characterized by comprising repetitive PCM data creating means for creating data, a PCM developing section for converting the repetitive PCM data into normal PCM data, and a listening means for listening to the PCM data from the PCM developing section. apparatus.