| 摘要 |
A signal synthesizer system includes signal generating detectors for detecting the operating conditions of an engine and applying the signals to at least one analyzer circuit. At least one signal synthesizer combines the output of the analyzer with a control signal from a circuit programmed to generate signals indicative of a particular type of engine operating under the detected conditions. The output of the synthesizer is converted to analog signals and applied to a signal transducer to produce an audible auto output.
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