Method for improving audio frequency of television loudspeaker using EQ function
A technology for speakers and TV sets, which is applied to parts of color TVs, parts of TV systems, TVs, etc., can solve the problems of poor sound reproduction quality, poor hearing sense, and unsmooth frequency response curve, and achieve good sound effects. , low cost, improve the effect of audio frequency response
Inactive Publication Date: 2013-01-09
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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Problems solved by technology
With the pressure of product costs, the cost of speakers used in TVs should not be too high. Due to the influence of materials and processes, the frequency response curves of low-cost speakers are not smooth, and there are many fluctuations in the frequency response range. Therefore, Sound reproduction quality is poor
The frequency response curve is not smooth, that is, when the speaker restores the sound, the gain of each frequency point is different, so when the signal is restored to sound, the sound of some frequency points is amplified, and the sound of some frequency points is reduced, resulting in the restoration The sound is quite different from the original sound, and the sense of hearing is very poor.
Therefore, the frequency response curve of the speakers of most TVs, especially low-end TVs, is not ideal.
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[0011] The invention discloses a method for improving the audio frequency response of a television speaker by utilizing the EQ function, and adjusts the gain of any frequency point by utilizing the multi-segment EQ function of the audio processing chip. First, measure the frequency response curve of the speaker. The speaker manufacturer generally provides the frequency response curve of the speaker. Of course, it can also be measured by the AP audio test system. According to this frequency response curve, determine the frequency points that need to be compensated or attenuated. Which The gain of the frequency point needs to be increased or decreased. Specifically, according to the measured frequency response curve, excessive peaks need to be reduced, while valleys need to be increased, and then the value of the register of the audio processing chip is changed through software. According to the measured curve, determine which frequency point should be increased or decreased by ...
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The invention discloses a method for improving the audio-frequency response of TV loudspeaker by utilizing EQ function, which is as follow: firstly, the frequency response curve of the loudspeaker is measured; the frequency points for compensation and attenuation are confirmed based on the frequency response curve, and the gain of a plurality of dB that is necessary to be increased or decreased is determined, and then which is adjusted by the EQ; the value of a register of an audio-frequency processing chip is changed by utilizing a software, thereby the compensation for the frequency response curve of the loudspeaker is completed. By utilizing the multi-segment EQ function of the audio-frequency processing chip, the adjustment for the gain of the frequency point can be implemented, so asto compensate the curve of the loudspeaker, so that the audio-frequency response can reach an ideal state, and the problem on the audio-frequency response can be improved effectively, thereby a better sound effect can be realized under the condition of low cost.
Description
【Technical field】 [0001] This creation involves the technology of using point frequency response to compensate audio frequency response, especially a method of using EQ function to improve the audio frequency response of TV speakers. 【Background technique】 [0002] Now more and more TV audio processing chips have the function of multi-band EQ, which can achieve different sound effects by changing the gain of each frequency point. With the pressure of product costs, the cost of speakers used in TVs should not be too high. Due to the influence of materials and processes, the frequency response curves of low-cost speakers are not smooth, and there are many fluctuations in the frequency response range. Therefore, The sound reproduction quality is poor. The frequency response curve is not smooth, that is, when the speaker restores the sound, the gain of each frequency point is different, so when the signal is restored to sound, the sound of some frequency points is amplified, an...
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IPC IPC(8): H04R29/00H04N5/60
Inventor 彭勇金永进
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD