JPH041600U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the automatic accompaniment device according to the present invention, FIG. 2 is an overall control flowchart of the automatic accompaniment device shown in FIG. 1, and FIG. 3 is an automatic accompaniment device shown in FIG. FIG. 4 is a detailed flowchart of the scoring process steps of the control flowchart shown in FIG. 2, and FIG. 5 is a diagram showing the scoring process of the singing voice signal and melody signal. A diagram showing an example, FIG. 6 is a diagram showing an example of notes of evaluation tones. 1... CPU, 2, 4... Pitch extraction circuit, 3
...Tape player section, 5...PCM sound source, 6
...Switch detection section, 7, 12 ... A/D converter, 8, 13 ... Level detection circuit, 9 ... Mixer,
10...Amplifier, 11...Speaker.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) External sound detection means for detecting external sound, storage means in which accompaniment sound data consisting of a series of note information is stored, and accompaniment sound data sequentially read from the storage means reading means; musical sound generation means for generating an accompaniment sound signal based on the accompaniment sound data read by the reading means; mixing the accompaniment sound signal and the audio signal from the external sound detection means; an automatic accompaniment device comprising: a sound generating means for outputting; melody sound data readable by the reading means; stored in the storage means in parallel with accompaniment sound data; and melody sound data read from the storage means and the above. Comparing means for comparing the external audio from the external audio detecting means at regular intervals; and a stop for accumulating the comparison results from the comparing means and stopping the operation of the reading means when the cumulative value exceeds a predetermined value. means for generating a first evaluation sound for the sound generation means in response to a stop signal from the stop means; and a second evaluation sound generation means for the sound generation means upon detecting completion of reading from the storage means by the readout means. An automatic accompaniment device comprising: second evaluation sound generation means for supplying a sound signal. (2) The automatic accompaniment according to claim 1, wherein the second evaluation sound generating means includes evaluation sound switching means for generating different evaluation sounds depending on the comparison results accumulated in the stopping means. Device. (3) The evaluation sound switching means generates a sound similar to the first evaluation sound when the cumulative value of the comparison results from the stopping means is equal to or greater than a certain value. Automatic accompaniment device. (4) The comparison means includes matching means for determining at regular intervals whether the melody sound of the external sound detected by the external sound detection means and the melody sound output from the storage means match. ,
4. The automatic accompaniment apparatus according to claim 1, wherein said stopping means includes an accumulating means for accumulating a numerical value in response to the number of occurrences of the mismatch signal from said matching means. (5) The melody sound data stored in the storage means includes scale data, and the comparison means
The matching means includes pitch detecting means for detecting the pitch of an external voice inputted by the external voice detecting means, and the matching means detects the pitch detected by the pitch detecting means and the pitch included in the melody sound data. Claim 4 characterized in that it is determined whether the musical scale data contained in the musical scale data match.
The automatic accompaniment device described. (6) The melody sound data stored in the storage means includes note stop section data, the comparison means includes level detection means for detecting generation and stop of the external sound, and the matching means includes: 6. The automatic accompaniment apparatus according to claim 5, further comprising the step of determining whether or not the generation/stop of the external sound and the note output/stop of the melody sound match. (7) The stopping means accumulates different numerical values when a pitch and scale mismatch signal is generated, when external sound generation is stopped, and when a note output stop mismatch signal is generated. The automatic accompaniment device described. (8) The automatic accompaniment device according to claim 4, wherein the stopping means includes a subtraction operation for subtracting a fixed value from the value accumulated by the accumulating means when the matching signal is generated from the matching means.