Analog-digital conversion type novel recording system based on pre-amplification circuit

Abstract

The invention discloses an analog-digital conversion type novel recording system based on a pre-amplification circuit. The analog-digital conversion type novel recording system is characterized by being mainly composed of a microprocessor, a storage, an analog-digital conversion circuit, an audio filtering circuit, a timer, the pre-amplification circuit, an audio collection module and a loudspeaker, wherein the storage, the analog-digital conversion circuit, the audio filtering circuit and the timer are connected with the microprocessor, the pre-amplification circuit is connected with the analog-digital conversion circuit, the audio collection module is connected with the pre-amplification circuit and the loudspeaker is connected with the audio filtering circuit. According to the analog-digital conversion type novel recording system, interference noise can be restrained, needed audio signals are reserved, and therefore the record playing definition can be improved. Due to the arrangement of the pre-amplification circuit, the pre-amplification circuit can conduct undistorted amplification on the collected audio signals, post-converted modulus and the microprocessor can conduct conversion and recognition on the audio signals, and therefore the stability of the analog-digital conversion type novel recording system is improved.

Description

technical field [0001] The invention relates to a recording system, in particular to a new analog-to-digital conversion recording system based on a preamplifier circuit. Background technique [0002] At present, with the development of science and technology and the needs of people's daily work, study and life, recording equipment has become an indispensable electronic product in various fields, and digital recording equipment with high-quality recording effects is more favored by people. [0003] However, the existing recording equipment will record all kinds of sounds when recording, and it cannot suppress the impurity audio well when processing the audio signal, so when people listen to the recording, they will be subject to a lot of noise. interference. Contents of the invention [0004] The purpose of the present invention is to overcome the defect that the existing recording equipment cannot suppress impurity audio very well, and provide a new analog-to-digital conv...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defect that the existing recording equipment cannot suppress impurity audio very well, and provide a new type of analog-to-digital conversion recording system based on a preamplifier circuit

Images