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Microphone converter

A technology of converters and microphones, applied in transducer circuits, sensors, sensor parts, etc., can solve the problems of interference, magnetic wave "microphones with poor anti-interference performance"

Inactive Publication Date: 2017-05-17
张晓兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is acceptable to use a magnetic wave "microphone" to record the sound of battery-powered TV sets, tape recorders, and radio speakers, but for AC-powered TV sets, tape recorders, and radios, as soon as the power is turned on, the transformer will generate an alternating magnetic field. Very poor interference. Seriously interfered by alternating magnetic field

Method used

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  • Microphone converter

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Embodiment

[0010] Embodiment: the word simple converter that the present invention belongs to is placed in the cassette tape recorder, the front of electret microphone and magnetic head magnetic wave " microphone " all faces the tape recorder panel, what used as magnetic head magnetic wave " microphone " is the stereo recording and playback magnetic head, can put The two sets of coils are used in series, and the toggle switch can be installed in the appropriate part of the basin recorder. For example, when recording vocals, press the button of the cassette recorder to the position of the recorder, and turn the toggle switch to position A. At this time, the electret microphone in the recorder is connected to the line, and the distance between the sounding body and the phone is generally 30-50 cm. For example, when recording the sound of the horn, press the button of the cassette recorder to the recording position, and turn the toggle switch to the B position. The magnetic head magnetic w...

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PUM

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Abstract

The invention belongs to microphone converter. The connection and disconnection between an electret microphone and magnetic head magnetic-wave microphone (which is sensitive to an audio magnetic wave, is good in frequency response, and is good in resistance to an electric field and an alternating magnetic field) and a line are controlled through a toggle switch, so as to meet the demands of different recording objects, thereby improving the recording quality.

Description

technical field [0001] The invention relates to the technical field of recording, in particular to a microphone converter. Background technique [0002] The disadvantage of using a microphone to record is that it is easy to record noises other than the signal. Especially when recording with a microphone, the sound from the speaker is noisy and has poor frequency response. To solve this problem, magnetic wave "microphones" were produced. It is acceptable to use a magnetic wave "microphone" to record the sound of battery-powered TV sets, tape recorders, and radio speakers, but for AC-powered TV sets, tape recorders, and radios, as soon as the power is turned on, the transformer will generate an alternating magnetic field. The interference is extremely poor. It is seriously disturbed by the alternating magnetic field. Therefore, it is necessary to improve it. Contents of the invention [0003] The purpose of the present invention is to provide a kind of recording object th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00
Inventor 张晓兰
Owner 张晓兰