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US 8,263,849 B2Granted
Flash memory based stored sample electronic music synthesizer
AssigneeYoung Chang Research and Development Institute
InventorsHoward Chamberlin, Timothy Thompson, Mark Miller, Sivaraman Natarajan
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Abstract
A flash-memory based stored-sample electronic music synthesizer enables the electronic reproduction of a large number of independent voices while accommodating the exacting demands of voice continuity, minimal note-start latency, and voice synchronicity.
Claims12
A stored sample music synthesizer, comprising
- an input source for selecting one or more voices to be played;
- an output for receiving digital representations of the selected voices;
- a flash memory for storing voice samples;
- a buffer memory for receiving selected voice samples from said flash memory, said buffer memory comprising, for each voice, at least a first sample buffer memory for holding samples of the voice to be played and at least a first loop memory for holding samples containing a loop point of the voice;
- and
- a sample playback engine responsive to said input source for selecting voice samples from said flash memory and storing them into said buffer memory for transmission to said output.
3 more elements
A method of servicing requests for data in a music synthesizer, comprising
- establishing a basic cycle time for loading data into sample buffers for subsequent processing by the synthesizer;
- allocating a first group of time-segments of said cycle time at least for continuing play of each of a plurality of voices to be played by the synthesizer;
- allocating a second group of time-segments of said cycle time for starting new voices to be played by the synthesizer, said second group of segments being interspersed among said first group.
Dependencies are inferred from the claim text.