Playback system for audio memory disks
First Claim
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1. An audio memory playback system, comprising:
- playback means comprising;
controller means for controlling generation of different addresses and a playback speed according to an input control signal of a key matrix,address generator means connected to said controller means for generating each different addresses according to an output control signal of said controller means, andan audio memory connected to said address generator means, for storing digital representations of melodies at a plurality of locations addressable according to the addresses generated by said address generator means to read the digital representations stored in the audio memory;
playback speed control means for increasing or decreasing speed of generation of said addresses by said address generator means by determining a dividing ratio under the control of said playback means;
a display circuit for displaying visual indications of operational states of said key matrix; and
an output circuit connected to an output terminal of the audio memory for converting the digital representations stored in the audio memory into audio melodies.
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Abstract
An audio memory playback system has a playback device for playing back data stored in an audio memory, playback speed control for increasing or decreasing an addressing speed of an address generator, a display circuit for displaying the operational state of a key matrix, and an output circuit for providing the data stored in the audio memory. The audio memory playback system may playback a digital melody stored in the audio memory by recognizing an applied signal from the key matrix through the controller and control a playback speed of an audio signal according to a control signal of the controller, and carry out automatic selections.
39 Citations
11 Claims
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1. An audio memory playback system, comprising:
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playback means comprising; controller means for controlling generation of different addresses and a playback speed according to an input control signal of a key matrix, address generator means connected to said controller means for generating each different addresses according to an output control signal of said controller means, and an audio memory connected to said address generator means, for storing digital representations of melodies at a plurality of locations addressable according to the addresses generated by said address generator means to read the digital representations stored in the audio memory; playback speed control means for increasing or decreasing speed of generation of said addresses by said address generator means by determining a dividing ratio under the control of said playback means; a display circuit for displaying visual indications of operational states of said key matrix; and an output circuit connected to an output terminal of the audio memory for converting the digital representations stored in the audio memory into audio melodies. - View Dependent Claims (2, 3, 4, 5)
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6. An audio disk playback system, comprising:
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control means connectable to a data input terminal, for generating first control signals controlling generation of addresses and playback speeds in response to reception of data at said data input terminal; frequency generating means, for responding to said first control signals by generating second control signals exhibiting a frequency depending upon said first control signals; address generating means for generating the addresses in response to said first and second control signals; audio memory disk means connectable to be addressed by said address generating means, for responding to said first and second control signals by reading digital representations of stored data in response to said addresses; and output means for transmitting audio signals in dependence upon reception of said digital representations. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification