JPH0390291U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention, FIG. 2 is a configuration diagram of a CD operation section, FIG. 3 is a configuration diagram of a musical instrument operation section, and FIG. 4 is a configuration diagram of a timer circuit. , FIG. 5 is an explanatory diagram regarding TOC, and FIG. 6 is an explanatory diagram regarding TOC.
Figure 7 is a data configuration diagram of automatic performance memory, and Figure 8 is an operation flowchart of sequencer light mode.
This figure is an operation flowchart in the sequencer play mode, and FIG. 9 is an operation flowchart in the case where error correction is not possible. 100...CD player section, 101...TOC
Memory, 102...CD operation section, 103...CD
Control unit, 104...Servo circuit, 105...CD
, 106...disk motor, 107...optical pick-up, 108...pick-up feed motor,
109...Demodulation circuit, 110...Subcode signal processing circuit, 111...Audio data signal processing circuit, 112...D/A converter, 113...Low pass filter (LPF), 114...Amplifier, 11
5...Speaker, 200...Electronic keyboard instrument section, 2
01...Musical instrument control section, 202...Musical instrument operation section, 2
03...Tone generator, 204...D/
A converter, 205...Low pass filter (LPF
), 206...Amplifier, 207...Speaker, 2
08... Automatic performance memory, 209... Timer circuit.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. Sound source means for performing automatic performance based on automatic performance data, reproduction means for reproducing audio data recorded on a recording medium while correcting errors thereof, and said reproduction. position data reading means for sequentially reading out position data indicative of each timing of the audio data being reproduced recorded on the recording medium in synchronization with the reproduction operation of the audio data by the means; and in that case, the position data indicating the timing of the audio data to be reproduced by the reproduction means in synchronization with the automatic performance by the sound source means based on predetermined automatic performance data among the automatic performance data, automatic performance data storage means for storing the predetermined automatic performance data together with the predetermined automatic performance data; and when an error correction impossible state is detected from the reproduction means, muting the reproduced sound of the reproduction means and stopping the automatic performance operation of the sound source means. and a first process of waiting for recovery from the error-correctable state; and at the time when the error-correctable state is recovered in the playback means, the position data read from the position data reading means and the automatic performance data storage are processed. synchronization restart control means for performing a second process of restarting automatic performance by the sound source means in synchronization with the reproduction operation of audio data by the reproduction means based on each position data stored in the means; An automatic performance device comprising: 2. The second process in the synchronization restart control means includes: at a timing when the error correction impossible state is recovered in the reproduction means, a process for causing the reproduction means to temporarily stop reproduction of the audio data; Searching the automatic performance data storage means for position data that is greater than or equal to the value of the position data read from the position data reading means, and instructing the reproducing means to start reproducing the audio data from the timing of the retrieved position data. and, in synchronization with the instruction operation, sequentially reads out the automatic performance data stored in the automatic performance data storage means starting from the predetermined automatic performance data corresponding to the retrieved position data, and based on the reading, reads out the automatic performance data stored in the automatic performance data storage means, starting with the predetermined automatic performance data corresponding to the retrieved position data. The automatic performance device according to claim 1, further comprising: a process for restarting automatic performance.