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

A preamplifier circuit and analog-to-digital conversion technology, which is applied in the direction of analog-to-digital converters, power amplifiers, differential amplifiers, etc., can solve the problems of impurity audio suppression, etc., and achieve complete signal conversion, good conversion and recognition, and improved clarity Effect

Inactive Publication Date: 2016-02-10
CHENGDU SIBOTE TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defect that the existing recording equipment cannot suppress im

Method used

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

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Embodiment

[0022] Such as figure 1 Shown, novel recording system of the present invention, mainly by microprocessor, the memory that is connected with microprocessor respectively, analog-to-digital conversion circuit, audio filter circuit and timer, the audio frequency collection module that is connected with analog-to-digital conversion circuit, And the loudspeaker connected with the audio filter circuit. The audio collection module is also connected with the microprocessor.

[0023] Among them, the audio collection module is used to collect external audio signals, which can be realized by using the SV-2602 sound collection module produced by Shenzhen Weilink Technology Co., Ltd. The analog-to-digital conversion circuit is used to convert the collected audio signal into a digital electrical signal and send it to the microprocessor. The microprocessor is used as the control center of the invention, and it is preferably realized by using the AT89S52 main control chip. The timer is used...

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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...

Claims

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Application Information

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IPC IPC(8): G11C7/16H03F3/20H03F3/45H03M1/12
Inventor 钟黎
Owner CHENGDU SIBOTE TECH CO LTD
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