Music – Instruments – Electrical musical tone generation
Patent
1989-01-03
1991-02-12
Moses, R. L.
Music
Instruments
Electrical musical tone generation
84604, 84607, 84615, 84622, 84636, 84454, G10H 702, G10H 118
Patent
active
049914847
ABSTRACT:
There are provided a device for sampling a tone signal applied from outside, a built-in tone source, responsive to tone pitch information, a tone signal having tone pitch corresponding to the tone pitch of the tone pitch information, a memory capable of both writing and reading for storing waveform sampled data and a control circuit for selectively writing a tone signal sampled or a tone signal generated from the built-in tone source. The waveform sampled data in the memory is read out in accordance with designated tone pitch. A circuit is provided which, when input of a tone signal sampled has not been detected for a predetermined period, causes a tone signal generated from the built-in tone source and written in the memory. There is also provided a circuit which generates a tone of a reference pitch when a predetermined switch operation has been made with the tuning operation. There is also provided a circuit for selecting whether pitch adjustment should be made in both a sample tone source having a memory storing a tone signal sampled and the built-in tone source or the pitch adjustment should be made only in the sampled tone source. There are provided a circuit for generating pattern data designating tone sounding timing and tone pitch in accordance with a rhythm pattern and a circuit for performing selection as is whether the sampled tone source be driven in accordance with this pattern data or in accordance with a key depression.
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Moses R. L.
Smith Matthew S.
Yamaha Corporation
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