Filtering-frequency-adjustable high definition audio processing system
A processing system and clear sound technology, applied in transducer circuits, sensors, electrical components, etc., can solve problems such as poor filtering effect, and achieve the effect of avoiding interference, filtering out, and improving playback quality.
Inactive Publication Date: 2015-03-25
CHENGDU COPOO TECH
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the defect that the filtering effect of the current audio processing system is not good, and to provide a high-definition audio processing system with adjustable filtering frequency
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[0014] Such as figure 1 As shown, the high-definition audio processing system with adjustable filter frequency of the present invention is mainly composed of an audio acquisition module, a frequency selection circuit connected to the audio acquisition module, a microprocessing circuit connected to the frequency selection circuit, and a microprocessing circuit connected to the microprocessing circuit. connected amplifier circuit. In order to realize the purpose of the present invention, an adjustable filter circuit is also provided at the output end of the micro-processing circuit.
[0015] The adjustable filter circuit can filter out unnecessary wave frequencies and prevent the audio processing system from being disturbed by unnecessary wave frequencies, thereby improving the quality of movie playback. It consists of operational amplifier T1, operational amplifier T2, triode VT3, the positive pole is connected to the micro-processing circuit, the negative pole is connected to...
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The invention discloses a filtering-frequency-adjustable high definition audio processing system. The filtering-frequency-adjustable high definition audio processing system is mainly formed by an audio acquisition module, a frequency selection circuit connected with the audio acquisition module, a microprocessing circuit connected with the frequency selection circuit and an amplification circuit connected with the microprocessing circuit, and is characterized in that a tunable filter circuit is further arranged at the output end of the microprocessing circuit and is formed by an operational amplifier T1, an operational amplifier T2, a triode VT3, a capacitor C8 and the like, the positive electrode of the capacitor C8 is connected with the microprocessing circuit, and the negative electrode of the capacitor C8 is connected with the output end of the operational amplifier T1 through a resistor R11 and a potentiometer R12. The filtering-frequency-adjustable high definition audio processing system is provided with the tunable filter circuit, so unwanted wave frequency can be filtered out, the audio processing system can be protected against interference of the unwanted wave frequency, and film play quality is improved accordingly. Meanwhile, the filtering frequency of the audio processing system can be adjusted only by adjusting the potentiometer R12 and a potentiometer R14, and therefore noise can be better filtered out.
Description
technical field [0001] The invention relates to an electronic system, in particular to a high-definition audio processing system with adjustable filter frequency. Background technique [0002] With people's pursuit of higher and higher quality of life, home theaters have basically entered every household, bringing great joy to people's lives. However, noise often occurs when people watch movies, which affects the playback quality of movies. Contents of the invention [0003] The purpose of the present invention is to overcome the defect of poor filtering effect of the current audio processing system, and provide a high-definition audio processing system with adjustable filtering frequency. [0004] The object of the present invention is achieved with the following technical solutions: a high-definition audio processing system with adjustable filter frequency, mainly composed of an audio acquisition module, a frequency selection circuit connected to the audio acquisition m...
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IPC IPC(8): H04R3/00
Inventor 车容俊高小英
Owner CHENGDU COPOO TECH