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Pre-adjustment method of gramophone record player for gramophone record digital sampling

A player and record technology, applied in instruments, data recording, mechanical recording, etc., can solve problems such as difficult storage

Inactive Publication Date: 2010-12-29
SHANGHAI CONSERVATORY OF MUSIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in our country, the damage of "vinyl records" is very serious. It is not easy to preserve records no matter whether they are collected by the state or the people.

Method used

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  • Pre-adjustment method of gramophone record player for gramophone record digital sampling
  • Pre-adjustment method of gramophone record player for gramophone record digital sampling

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Experimental program
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Embodiment Construction

[0015] Before vinyl record playback and digital sampling, in order to ensure the accuracy of signal acquisition, the LP player (hereinafter referred to as the player) used for vinyl record playback should be pre-adjusted, such as figure 1 shown.

[0016] according to figure 1 In the preferred embodiment shown, first, the player is placed on a stable working platform (step S1), which is a solid and solid working platform. Since external vibration interference will cause the stylus to vibrate and cause signal distortion, special attention should be paid to anti-vibration when the stylus picks up the signal in the audio track. The console on which the player is placed should be firm and level (level to be measured), avoiding the use of a hollow or hollow console to avoid resonance. It is best to use a solid, heavy work platform. There should be no strong noise sources or vibration sources near the digital acquisition studio. During signal acquisition, it is absolutely necessar...

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Abstract

The invention relates to a pre-adjustment method of a gramophone record player for gramophone record digital sampling. After putting the player on a stable platform, the method comprises the following steps of: adjusting the disc record levelness of the player to ensure that a disc record is absolutely level; adjusting the sound producer overhang of the player to ensure that the distance between a sound producer needlepoint and the axes of the disc record is equal to or slightly smaller than a rated value of the sound producer overhang, or the distance between the sound producer needlepoint and the axes of the disc record is in a rated value range of the sound producer overhang; adjusting the disc record rotating speed of the player to ensure that the disc record rotating speed keeps consistent with a gramophone record specified rotating speed; adjusting the phonograph needle pressure of the player to acquire an accurate needle pressure; and adjusting playback shock prevention of the gramophone record to ensure that the gramophone record cannot shake during playback. The pre-adjustment method can provide a stable and high-quality signal source and ensure that signals have no distortions in the process performing digital acquisition on the gramophone record after performing pre-adjustment on the gramophone record player.

Description

technical field [0001] The invention relates to a pre-calibration method of a disc player used for digital sampling of discs. Background technique [0002] Records are a generalization of the medium of music transmission, and their material forms can be divided into early steel wire records, vinyl records and today's CDs and so on. Vinyl records are what people call records that used to be played on turntable players. This disc was originally a black disc-shaped film, pressed with materials such as shellac or polyethylene, with concave and convex pits engraved on it, and recorded sound in the form of an analog signal. [0003] Since the invention of recording technology and the advent of records at the end of the 19th century, vinyl records, as a carrier of sound and music, have occupied almost the entire 20th century until the advent of laser discs in the mid-to-late 1970s. As a kind of History Recording, vinyl records record all kinds of sounds in the corresponding histo...

Claims

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Application Information

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IPC IPC(8): G11B3/00
Inventor 吴粤北袁征王劲松韩斌
Owner SHANGHAI CONSERVATORY OF MUSIC
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