| 摘要 |
PURPOSE: A method for reproducing an original sound in a vehicle audio is provided to eliminate noise by controlling an amount of sampling data being outputted. CONSTITUTION: An audio(100) amplifies a signal from a tuner or deck, and a CD(Compact Disk) player to a predetermined audio frequency band. A speaker(200) outputs sound from the signal outputted from the audio(100). A microphone(300) detects the sound outputted from the audio(100) and noise within a vehicle. An active noise attenuator(400) receives the sound and the noise which are detected by the microphone(300), and also receives a sound signal before being amplified in the audio(100). And then, the active noise attenuator compares them, amplifies the sound, and attenuates the noise to output the amplified sound to the audio(100).
|
