发明名称 |
BROADCAST DIGITAL SOUND PROCESSING SYSTEM WITH TIME COMPANDING |
摘要 |
A broadcast digital sound processing system includes an ISA (Industry Standard Architecture) bus compatible personal computer with a hard disk drive and a sound processor board installed in an expansion slot of the computer. The board includes a stereo input, analog to digital converter (ADC) and a stereo set of digital to analog converters (DAC's) interfaced to a digital signal processor (DSP) chip. A stereophonic audio signal is converted to digital data by the ADC and communicated to the computer by the DSP chip through a two port record first-in/first-out (FIFO) buffer for storage on the disk. A program is played back by communicating a program data file through a two port playback FIFO buffer to the DSP and from thee to the DAC's for reconstruction to a stereo set of analog signals. The reconstructed audio signals may then be used as a modulating signal for radio broadcasting. |
申请公布号 |
AU7679191(A) |
申请公布日期 |
1991.10.30 |
申请号 |
AU19910076791 |
申请日期 |
1991.03.29 |
申请人 |
COMPUTER CONCEPTS CORPORATION |
发明人 |
GREGORY L DEAN;GORDON L ELLIOTT |
分类号 |
G06F3/16;G11B20/00;G11B20/10;G11B27/034;G11B27/10;G11B27/34;H04H60/07 |
主分类号 |
G06F3/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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