JPS5816290A - Performance recorder/reproducer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention uses a video device that records a video signal to
A performance recording and reproducing device (2) that records digital performance data and allows automatic performance, for example, of a musical instrument, to be performed along with video playback.

Conventionally, it has been known to form a video signal including two channels of audio information for one channel of image information, and such a video signal cannot be recorded on a video tape recorder or a video disc device. It is being done. For example, in the case of a musical performance such as an orchestra performance, the performance sound is reproduced in high quality stereo along with an image of the performance scene, and can be effectively used in music education and the like.

However, when music is played back using such a video device, it is only played step-by-step and the sound is emitted from a speaker, and it is not possible to directly hear the sound of the actual musical instrument itself.

This invention has been made in consideration of the points mentioned above, and it is possible to record and reproduce at least performance data of a specified musical instrument at the same time, for example, while the scene and sound of a musical instrument are being played back. It is an object of the present invention to provide a performance recording and reproducing apparatus which controls the performance of a musical instrument based on the performance data and reproduces a performance scene including direct musical instrument performance sounds.

That is, the recording and reproducing apparatus according to the present invention stores and sets at least performance data of a specified musical instrument, and also stores and sets image information corresponding to the performance of the musical instrument, and stores the performance data in the first plurality of frames and thereafter. A mixed video signal with image information set is recorded and played back, and the played performance data is stored and set, and the above performance data is read out in synchronization with the playback of the image information and used for musical instrument performance. It was designed so that

An embodiment of the present invention will be described below with reference to the drawings. Figure 1 shows the configuration of the recording section.
1, a self-playing piano 11 is set to be played by a performer, and this piano 11m generates pitch data corresponding to, for example, the pitch C2 of the operated key as the keys are operated. be done. This pitch data is composed of, for example, a combination of a 2-bit octave code and a 4-bit note (pitch name) code.Since the keys of the piano 11m are operated with both hands, there are multiple keys. may be operated at the same time, and pitch data corresponding to these operated keys is generated in parallel.Pitch data from this automatic piano 11m is transmitted to the channel. Key coder 1 consisting of a processor
2. In the key coder 12, a plurality of channels are set, and the pitch data generated from the player piano IIm is distributed to empty channels in accordance with the order of generation, etc., and the buffer memory 15 stores the pitch data of the plural channels. Each sound itb data is stored in a buffer.

FIG. 2 shows the key coder 12 and buffer memory 1.
Part 3 (This shows the part corresponding to one channel in part 2. Pitch data generated and distributed in accordance with key operations on the player piano is stored in the first shift register 14 driven by clock φ1. Then, the pitch data stored in the first shift register 14 is shifted and stored in the second shift register 151 corresponding to the next clock φIC, and is stored in the second shift register 15. The pitch data is stored in the buffer 16 in correspondence with another clock φ2 having a different phase.

Here, the pitch data stored in the first and second shift registers 14.15 is supplied to the exclusive OR circuit 17, and when there is a difference in the contents of the data stored in both registers 14.16, An output signal from the exclusive OR circuits 17 to 11 is generated. In other words, when new pitch data is input to the channel by a new key operation, or when the key corresponding to the previously input pitch data is released and the input pitch data disappears, this exclusive The output signal "1" is generated from the target OR circuit 17, and the event detection circuit 18 detects a change in the key operation state (event).

The pitch data stored in the buffer 16 is supplied together with the event detection signal to the C2 synthesis circuit 19, and this synthesis circuit 19c receives the counted value from the counting circuit 20 which is driven by the clock pulse CP. It also provides data, ie time data. Then, time data corresponding to an event) is detected from this synthesis circuit 19, and performance data is formed together with pitch data corresponding to the event, and this performance data is sent to the performance data forming circuit 2 for each channel. is formed in That is, compressed performance data including pitch data at key presses as well as time data for each key press and release of key operations on the automatic performance piano 1lal2 is generated corresponding to each channel. The data of each channel is stored and set in the memory 22 in order.

The performance scene of the musical instrument group 11 including the automatic performance piano 11 is captured by the video camera 23 and made into one image information, and the performance sound of the musical instrument group 11 excluding at least the performance sound of the automatic performance piano 11& is captured by the microphone 24. is detected in, for example, two channels, and the image information and performance sound information of the two channels are appropriately modulated and sent to the synthesis circuit 25.
to create a video signal. Then, this video signal is stored and set in a video storage section 26 made of a tape, a disk, a solid-state memory, or the like.

The performance data stored in the memory 22 (2) and the video signal stored in the video storage section 26 are read out and controlled in accordance with commands from a readout control circuit 27, and these readout information are read out from the control circuit 27. is supplied to the mixing circuit 28 along with the read address data.

FIG. 3 shows the format of the mixed video signal mixed and formed by the mixing circuit 28. Performance data is first read out from the memory 22 in response to a command from the readout control circuit 27, and is divided into, for example, several tens of fields of the video signal. Correspondingly taken out. Then, in response to the completion of reading out the performance data, the video signal is read out from the video storage section 26, and a continuous mixed video signal of the performance data and the video signal is taken out from the mixing circuit 28, and a video device consisting of a videotape or a video disc is output. Recorded against 29.

Here, as shown in the third factor, one line of address data is inserted into the blanking portion at the trailing edge of the vertical (V) synchronization period. This address data specifies the start and stop addresses of performance data and image information. The performance data is stored in advance in a memory, subjected to signal processing, and then output in synchronization with the image information using address data.

FIG. 4 shows a playback section from a video device 29 in which a mixed video signal of the above format is recorded.The one-ear raw mixed video signal from this video device is supplied to a separation □ circuit 30. First, the performance data recorded over the first plurality of fields is stored in the performance data reproduction storage circuit 31.
supply to. The video signal following this performance data is further supplied to a separation circuit 32, where it is separated into image information and two channels of performance sound signals, and the image information is displayed on the monitor screen 3.
31, and the performance sound signal is reproduced in high quality in stereo through a two-channel speaker system 34m and 34b.

In this case, the separation circuit 30 separates and extracts the address data inserted in correspondence with the vertical synchronization, drives the readout control circuit 35, synchronizes with the image and sound reproduction, and reproduces and stores the performance data. The performance data is reproduced and read from the circuit 31, and the automatic performance piano lla is mechanically driven to perform, for example, so that the performance sound can be directly obtained from the piano 11m.

That is, the scene of the performance is expressed as an image on the monitor screen 331, and the accompanying performance sound of the musical instrument group 11 is reproduced in high quality in stereo from the speaker systems 34m and 14b, and in synchronization with this. , automatic piano 11
1 will now be played automatically. Therefore, in addition to the reproduced sounds from the speaker systems 34a and 34b, the direct performance sound from the automatic performance piano l1m can be heard, and a very powerful performance situation can be reproduced. This can be very effective in music lessons.

In addition, especially (although not shown in FIG. 1), staff chain-shaped telop information is formed for the performance data read out from the performance data reproduction storage circuit 31, and this is redisplayed on the monitor screen 33. In this case,
If the automatic performance mode of the automatic performance piano Ila is turned off and the piano is played using the staff notation displayed on the monitor screen 33, it is possible to improve the effect of piano oil-water practice between surfaces.

As described above, according to the present invention, the sound of a musical instrument directly played on a tape is reproduced in an audible state.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram illustrating a recording section of a performance recording/reproducing apparatus according to an embodiment of the present invention, FIG. 2 is a diagram illustrating performance data forming means in the recording section, and FIG. 3 is a diagram illustrating recorded video. FIG. 4 is a diagram illustrating a signal format and a configuration diagram illustrating a reproducing section. 11... Instrument group, lla... Automatic performance piano, 12
...Key coder, 21...Performance data formation circuit, 2
2...Memory, 23...Video camera, 26...
Video signal storage circuit, 27... readout control circuit, 29
...Video device, 31...Performance data reproduction storage circuit, 33.◆.Monitor screen, 114a, 34b...
Speaker system, 35...readout control circuit. Applicant's agent Patent attorney Takehiko Suzue Figure 1 1 2 [

Claims (1)

[Claims] A musical instrument that generates performance data accompanying performance operations, means for capturing an image of scenery corresponding to the musical instrument performance, means for storing the performance data and captured image information, and t-recording for at least the first plurality of fields. Setting performance data and this 1: Next, means for setting the above-mentioned image information to form a mixed video signal and recording it as a video; means for separating and reproducing the performance data from this video-recorded mixed video signal and storing it; Image information reproduction from mixed video signal ζ: means for synchronously reading out and controlling the stored performance data; A performance recording and reproducing device characterized by: