JPH0415959B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic performance device that selects music data corresponding to a desired music piece from music data for a plurality of music pieces and performs automatic performance based on the selected music data.

Conventionally, an automatic performance device stores song data for multiple songs in a memory, selects the song data by turning on a selection switch corresponding to the desired song, and performs automatically based on this song data. is well known.

However, such conventional automatic performance devices cannot reproduce a desired song unless the relationship between the stored song data for a plurality of songs and the selection switch for selecting this song data is memorized.

In addition, if a read-only memory ROM that stores song data for multiple songs is made removable to the electronic musical instrument, or if the read-only memory ROM that stores the song data for multiple songs is stored in the electronic musical instrument's built-in random access memory RAM from an external recording means (for example, magnetic tape), it is possible to When transferring song data, the correspondence between selection switches and song titles cannot be memorized, and therefore it is necessary to prepare a table showing the correspondence between song names and selection switches.

This invention was made in view of the above circumstances.
An object of the present invention is to provide an automatic performance device that can easily select music data corresponding to a desired music piece.

SUMMARY OF THE INVENTION Therefore, the present invention provides a performance data storage means for storing performance data for a plurality of songs for automatically playing a desired music piece, and a performance data storage means for inputting music selection data corresponding to a part of the stored content of the performance data storage means. a selection data input means, sequentially reading the performance data from the storage means, sequentially comparing the read performance data with the song selection data, and selecting a comparison target when a match is detected by the comparison; a comparison means for outputting data specifying the performance data that is being played; and a playback means for sequentially reading performance data corresponding to the designated data from the performance data storage means and performing automatic performance in response to a playback start instruction. configured.

The present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a block diagram showing an embodiment of an automatic performance apparatus according to the present invention. In FIG. 1, a keyboard 1 is used for normal keyboard performance, and
It is also used as a data input means for selecting a song, and adds key information indicating the pressed key to the tone forming circuit 2 and register 3 in response to a pressed key. The musical tone forming circuit 2 forms a musical tone signal corresponding to the key pressed on the keyboard 1 based on the added key information, and applies this musical tone signal to the speaker 5 via the amplifier 4. As a result, speaker 5 is connected to keyboard 1.
Produces the sound corresponding to the key pressed.

In addition, when using the keyboard 1 as a data input means for selecting a song, play an appropriate phrase of the song to be selected on the keyboard 1, and store the key information (pitch data) in the register 3. .

The phoneme switch 6 is another data input means for selecting a song, and by turning on an appropriate switch according to the song title or lyrics of the song to be selected, character data corresponding to the song title or lyrics is stored in the register 7. let

Microphone 8, voice detector 9 and pitch detector 1
0 is another data input means for selecting a song, and when an audio signal indicating the song title, lyrics, or melody of the song to be selected is applied through the microphone 8 to the voice detector 9 and the pitch detector 10, the voice is output. The detector 9 detects a song title or lyrics from the input audio signal, and stores character data corresponding to the detected song title or lyrics in the register 11, and the pitch detector 10 detects a melody from the input audio signal. Pitch data corresponding to the melody is stored in the register 12.

On the other hand, the data memory 13 stores song data (pitch data, note length data), song title data, and lyrics data (character data) for a plurality of songs, as shown in FIG. This data memory 13 may be either ROM or RAM; in the case of ROM, a plurality of ROMs for storing the above data for a plurality of songs are prepared, and these ROMs are made removable from the automatic performance device; in the case of RAM, Data for multiple songs is stored in RAM as appropriate from magnetic cards/tape, punch cards, barcodes, etc.

Further, this data memory 13 stores data indicating a change in the number of songs at the beginning of each song data.

Here, a case will be described in which a desired song is selected and the song is automatically played.

First, using any one of the data input means described above, music selection data such as character data corresponding to the song title or lyrics of the song to be selected or pitch data of the song to be selected is transferred to the shift register 3. 7, 11, or 12. Note that when an audio signal indicating the lyrics and melody is added through the microphone 8, the register 11
and 12 store character data and pitch data simultaneously.

Next, the search start switch 14 is turned on.
When the switch 14 is turned on, the search address counter 15 becomes operational and the high speed clock pulse φ
Count. This count value is output as an address signal of the data memory 13. In addition, switch 1
Reference numeral 4 denotes a non-lock type switch, and the search address counter 15 outputs an address signal indicating all addresses of the data memory 13, and stops counting when a carry-out signal is output.

The address signal from the search address counter 15 is sent to the data memory 13 and the first address detector 1.
Added to 6. Based on the input address signal, the data memory 13 sequentially reads data in the order of song data corresponding to the first song, song title data, lyrics data, song data corresponding to the second song, song title data, lyrics data, etc. ( (See Figure 2). The data read from the data memory 13 are applied to a search circuit 17, a tone forming circuit 18, and a note length counter 19, respectively. It should be noted that the musical tone forming circuit 18 is inoperable when a song is selected.

The search circuit 17 has the registers 3, 7, 11,
The song selection data stored in one of the memory 12 and the data sequentially inputted from the data memory 13 are compared, and when these data match, a match signal EQ is generated.
Outputs 1. Further, the search circuit 17 outputs a signal ST when the output data from the data memory 13 is data indicating a change in the number of songs (the beginning of each song data). The coincidence signal EQ1 is output to the display 20 and the start address detector 16, and the signal ST is output to the start address detector 16.

When the coincidence signal EQ1 is applied to the display 20,
Lights up the lamp to indicate successful search.

The start address detector 16 detects the start address of the song data corresponding to the song to be selected, and every time a signal ST is input from the search circuit 17, an address is added from the search address counter 15 when this signal ST is input. When an address signal is newly fetched and a match signal EQ1 is input from the search circuit 17, the fetched address signal is outputted to the music progression address counter 21 as the start address of the music data corresponding to the music piece to be selected.

When the selection of the desired song is completed and the selected song is to be played back, the song start switch 22 is turned on.

When the music start switch 22 is turned on, the music progression address counter 21 becomes operational. First, the count value of the counter is set based on the address signal input from the head address detector 16, and this count value is stored in the data memory 13. It is output to the data memory 13 as an address signal. Data memory 13
reads the beginning data (pitch data and note length data) of the song data using this address signal.

The musical tone forming circuit 18 forms a musical tone signal based on the pitch data read from the data memory 13, and sends this musical tone signal to the speaker 5 via the amplifier 4.
In addition, the speaker 5 generates a sound corresponding to the pitch data.

The note length counter 19 counts the tempo clock TCL applied from the tempo oscillator 23, and when this counted value matches the pitch data read from the data memory 13, outputs a note length match signal EQ2 to the music progression address counter 21. At the same time, the count value is reset.

The music progression address counter 21 is the note length counter 1.
9 is counted up by the note length match signal EQ2 added from 9, and the counted up count value is added to the data memory 13 as a new address signal, and the second pitch data and note length data are read out.

By repeating the above operations, the selected song can be automatically played.

As explained above, according to the present invention, a part of the performance data stored in the performance data storage means is inputted as music selection data to search for a desired song. There is no need to store extra data for searching; only the performance data is sufficient.
The memory capacity of the performance data storage means can be saved significantly. Furthermore, since the song selection data input for search may be any part of the performance data, desired performance data can be easily and freely searched for even if only part of the performance data is known.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of an automatic performance apparatus according to the present invention, and FIG. 2 is a data format of data stored in a data memory according to the present invention. 1...Keyboard, 2,18...Tone formation circuit, 3,
7, 11, 12...Register, 5...Speaker,
6... Phonological switch, 8... Microphone, 9... Voice detector, 10... Pitch detector, 13... Data memory, 14... Search start switch, 15...
... Search address counter, 16... Start address detector, 17... Search circuit, 19... Note length counter, 20... Display, 21... Song progression address counter, 22... Song start switch, 23...
...tempo oscillator.

Claims (1)

[Scope of Claims] 1. A performance data storage means for storing performance data for a plurality of songs for automatically playing a desired music piece; and inputting music selection data corresponding to part of the stored content of the performance data storage means. A music selection data input means, sequentially reading performance data from the performance data storage means, sequentially comparing the read performance data with the music selection data, and determining a comparison target when a match is detected by the comparison. a comparison means for outputting data specifying the performance data that is being played; and a playback means for sequentially reading performance data corresponding to the specified data from the performance data storage means and performing automatic performance in response to a playback start instruction. Automatic performance device.