Tone generation device and method

Abstract

A device to perform tone generation while efficently using a broad bit width bus and essentially eliminating the delay from the request for tone expression until its expression. An arithmetic processing device that generates tones reads the data all at once from a memory in which tone data is stored. This is set so that the delay time from when there is a request for tone generation until the tone is actually generated and expressed is negligible.

Description

technical field [0001] The present invention relates to a tone generating device, method, and distribution medium. More particularly the present invention relates to tone generating apparatuses, methods, and distribution media, at various stages of processing, such as reading data for tone generation from memory, processing it, and storing it again in memory. The amount of data should be such that the delay time from when a predetermined tone is requested to be expressed until it is actually expressed does not pose any problem, and it is batched in such an amount that the bus can be used efficiently. Background technique [0002] Advances in semiconductor technology have made it possible to arrange arithmetic processing devices (such as a central processing unit (CPU) or digital signal processor (DSP)) and main storage devices (such as dynamic random access memory (DRAM) or static RAM) on a single chip. (static random access memory)). Data is transferred between them via t...

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Problems solved by technology

[0007] Therefore, there is a problem that if the tone generating device is constituted using an arithmetic processing device, a main storage device, and a high-speed and wide bit-width bus provided therebetween, it is difficult for it to be effective because the amount of data to be exchanged is small. transfer data

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