Yamaha Corporation

Tatsuya Nonaka

Eiichiro Aoki

Takeo Shibukawa

Hiroyuki Iwase

Hiromu Miyamoto

Kazunori Maruyama

Keizo Terui

Takashi Maruyama

A music apparatus is provided with a memory device that stores waveform data, and a sound device that has a plurality of tone generating channels, each of which is tuned in normal setting effective to process the waveform data retrieved from the memory device so as to generate a musical sound. An input device is placed in either of an active state for inputting external waveform data and an inactive state where the external waveform data is not inputted. A detector device is provided to produces a detection signal when the input device switches between the active state and the inactive state. A control device responds to the detection signal when the input device switches to the active state for controlling the sound device to change at least one of the tone generating channels from the normal setting to alternative setting effective to admit and process the external waveform data inputted from the input device so as to generate an additional sound so that the sound device can generate mixture of the musical sound and the additional sound. Otherwise, the control device responds to the detection signal when the input device switches to the inactive state for controlling the sound device to restore that one tone generating channel from the alternative setting to the normal setting so that the sound device generates the musical sound alone.

Wave table sound source capable of processing external waveform

An accompaniment apparatus has a first memory for memorizing a plurality of original accompaniment patterns corresponding to various accompaniment styles, each original accompaniment pattern being composed of a set of parallel part patterns. An editor is operated for designating different ones of the original accompaniment patterns and collecting therefrom a set of desired part patterns to define a free accompaniment pattern which is different than the original accompaniment patterns. A second memory memorizes designated and collected results by the editor for use in reproduction of the free accompaniment pattern. During the reproduction, a pattern length difference or a meter difference among the set of the collected parallel part patterns can be corrected to maintain a consistent progression of the automatic free accompaniment.

Automatic accompaniment apparatus having arrangement function with beat

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Hamamatsu, Japan

Tatsuya Nonaka