公开(公告)号：US6051772A

公开(公告)日：2000-04-18

申请号：US893148

申请日：1997-07-15

申请人： Charles J. Cameron ,  Gary M. Catlin

发明人： Charles J. Cameron ,  Gary M. Catlin

IPC分类号： G10H1/06 ,  G10H7/00 ,  G10H1/14 ,  G10H1/40

CPC分类号： G10H1/06 ,  G10H7/002 ,  G10H2250/475 ,  Y10S84/12 ,  Y10S84/27

摘要： A system and method are disclosed for emulating a frequency modulation sound chip with minimal hardware and utilizing the excess capacity of current computer systems. In one embodiment, the frequency modulation emulation apparatus includes a frequency modulation emulator suitable to communicate with a computer system. The frequency modulation emulator provides an addressable memory space, substantially similar to an emulated addressable memory space of the emulated frequency modulation sound chip, such that a frequency modulation application implemented on the computer system can communicate with the frequency modulation emulator. The emulator chip receives audio data through the addressable memory space from the frequency modulation application and, the frequency modulation application is unaware that the frequency modulation emulator is receiving the audio data rather than the emulated frequency modulation sound chip. A frequency modulation generator is implemented on the computer system. The frequency modulation generator receives the audio data from the frequency modulation generator. The frequency modulation generator processes the audio data to produce an audio signal in a manner that is substantially similar to the operation of the emulated frequency modulation sound chip. Thus, minimal hardware is used to emulate a frequency modulation sound chip, and utilizing the excess capacity of current computer systems.

摘要翻译： 公开了一种用于以最小硬件模拟频率调制声音芯片并利用当前计算机系统的过剩容量的系统和方法。 在一个实施例中，频率调制仿真装置包括适于与计算机系统通信的频率调制仿真器。 频率调制仿真器提供可寻址的存储器空间，其基本上类似于仿真的频率调制声音芯片的可仿真的可寻址存储器空间，使得在计算机系统上实现的频率调制应用可以与频率调制仿真器通信。 仿真器芯片通过来自频率调制应用的可寻址存储器空间接收音频数据，并且调频应用不知道调频仿真器正在接收音频数据而不是模拟调频声音芯片。 在计算机系统上实现频率调制发生器。 频率调制发生器从频率调制发生器接收音频数据。 频率调制发生器以与仿真的频率调制声音芯片的操作基本相似的方式处理音频数据以产生音频信号。 因此，使用最小的硬件来模拟调频声音芯片，并利用当前计算机系统的过剩容量。