Automatic performance device
AssigneeNippon Gakki Seizo Kabushiki Kaisha
InventorsAkio Imamura, Akiyoshi Oya
Life of this patent
Estimating the term…
Abstract
An automatic performance device comprises a pattern memory for storing a plurality of performance patterns and a sequence memory for storing a pattern progression. The pattern progression is programable and is written in the sequence memory. The performance patterns are selected one by one from the pattern memory according to the pattern progression. Each selected performance pattern is read out according to a tempo pulse. An automatic performance is carried out on the basis of the read-out performance pattern.
Claims28
An automatic performance device comprising:
- a pattern memory for storing a plurality of performance patterns;
- a sequence memory for storing a pattern progression sequence which defines a sequential order of the patterns to be performed;
- performance pattern reading means for successively reading respective ones of said performance patterns stored in said pattern memory in accordance with the pattern progression sequence stored in said sequence memory;
- and
- musical tone forming means for forming musical tones for automatic performance in accordance with the performance patterns read out of said pattern memory.
An automatic performance device comprising:
- a pattern memory for storing a plurality of performance patterns;
- a sequence memory for storing a pattern progression sequence which defines a sequential order of the patterns to be performed;
- programming means for programming said pattern progression sequence to be stored in said sequence memory;
- performance pattern reading means for successively reading respective ones of said performance patterns stored in said pattern memory according to the pattern progression sequence stored in said sequence memory;
- and
- musical tone forming means for forming musical tones for automatic performance according to the performance patterns read out of said pattern memory.
An automatic performance device comprising:
- a pattern memory for storing a plurality of performance patterns;
- means for generating pattern selection data for selecting one performance pattern out of said plurality of performance patterns stored in said pattern memory;
- a tempo oscillator for producing a tempo pulse having a frequency corresponding to a tempo;
- and counter means which is driven by said tempo pulse, to form an addressing signal for said pattern memory, so that a performance pattern selected by said pattern selection data is read according to an output of said counter means, and an automatic performance is carried out according to said performance patterns thus read;
- which device further comprises:
- particular measure detecting means for detecting a particular measure;
- and
- pattern changing means for changing said pattern selection data according to a detection output of said particular measure detecting means,
- so that an automatic performance change every particular measure is carried out.
An automatic performance device comprising:
- a pattern memory for storing a plurality of performance patterns;
- a tempo oscillator for producing a tempo pulse having a frequency corresponding to a tempo;
- a counter which is driven by said tempo pulse, to form an addressing signal for said pattern memory, so that one performance pattern among said plurality of performance patterns stored in said pattern memory is read out according to an output of said counter;
- and a tone producing circuit for producing tones according to said performance pattern thus read, which device further comprises:
- fill-in signal generating means for generating a fill-in signal;
- and
- switching means for switching a performance pattern read out of said pattern memory into a different performance pattern under the condition that said fill-in signal is generated.
Dependencies are inferred from the claim text.