/ Sound system with sound amplifier added D/A converter

摘要

PURPOSE: A sound signal generator having a D/A converter included in a sound amplifier of the generator is provided to remove noise by using a digital signal not an analog signal. CONSTITUTION: A sound signal generator includes a detector(10), a sound processor(20), a D/A converter(31), a sound amplifier(30) and a speaker(40). The detector detects a received RF signal, and a sound processor receives a sound signal among a signal inputted through the detector to filter the sound signal and converts the analog sound signal into a digital signal. A D/A converter converts the digital signal into an analog signal, and a sound amplifier amplifies the analog signal to a predetermined level. A speaker outputs the sound signal amplified by the sound amplifier to the outside.