Frequency division optimization processing audio chip and earphone

An audio chip and audio processing technology, applied in earpiece/headphone accessories, frequency/direction characteristic devices, transducer circuits, etc., can solve problems such as noise, affecting the user's hearing experience, low efficiency, etc., and achieve the effect of good sound quality

Pending Publication Date: 2021-08-13
昆山海菲曼科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In existing earphones, usually only a single amplifier is used to amplify all audio signals, which makes the amplifier amplify audio signals with different frequencies, which may be caused by the characteristics of the amplifier itself. Different performance degradation occurs during the process
[0003] When a low-frequency audio signal is amplified by a low-frequency common type amplifier, due to the low efficiency of the low-frequency common type amplifier when amplifying the audio signal, it requires a considerable amount of power when the low-fre

Method used

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  • Frequency division optimization processing audio chip and earphone
  • Frequency division optimization processing audio chip and earphone

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1:

[0025] This embodiment provides an audio chip 100 for dividing optimization processing, see figure 1 , Including: audio processing circuit 1, switching unit 2, first filter unit 3, first type amplifier 5, second filtering unit 4, and second type amplifier 6; audio processing circuit 1 for receiving input audio signal Si, and according to The setting frequency is divided into the input audio signal Si, which is obtained by obtaining a first bandwidth audio signal Sf1 below the set frequency and a second bandwidth audio signal Sf2 above the set frequency; the switching unit 2 is connected to the audio processing circuit 1. The first bandwidth audio signal Sf1 and the second bandwidth audio signal Sf1 and the second bandwidth audio signal SF2 are conducted to be transmitted to the control Ci of the audio processing circuit 1; the first filter unit 3 is connected to the first bandwidth conducted to the switching unit 2. The audio signal SF1 performs a controllable ...

Example Embodiment

[0039] Example 2:

[0040] This embodiment provides a headset having the above-described frequency division-optimized audio chip 100, which has the same performance, and will not be described again.

[0041] Specifically, the headset also includes a left speaker and a right speaker.

[0042] Specifically, the left speaker includes at least the first speaker 7 and a second speaker 8; the right speaker comprises at least the first speaker 7 and the second speaker 8.

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Abstract

The invention provides a frequency division optimization processing audio chip and an earphone. The frequency division optimization processing audio chip comprises an audio processing circuit, a switching unit, a first filtering unit, a first type amplifier, a second filtering unit and a second type amplifier; the audio processing circuit carries out frequency division processing on audio signals, so that the switching unit can transmit the audio signals with different frequencies to the filtering units and the amplifiers with different characteristics for processing according to a frequency division processing result; therefore, excessive power consumption is avoided during processing of audio signals in a reproduction frequency range and frequency-divided low-frequency signals, and better tone quality can be achieved during processing of audio signals outside the reproduction frequency range and frequency-divided medium-high-frequency signals.

Description

technical field [0001] The invention relates to the field of audio output equipment, in particular to an audio chip and an earphone for frequency division optimization processing. Background technique [0002] In existing earphones, usually only a single amplifier is used to amplify all audio signals, which makes the amplifier amplify audio signals with different frequencies, which may be caused by the characteristics of the amplifier itself. Different performance degradation scenarios occur during the process. [0003] When a low-frequency audio signal is amplified by a low-frequency common type amplifier, due to the low efficiency of the low-frequency common type amplifier when amplifying the audio signal, it requires a considerable amount of power when the low-frequency common type amplifier is used to amplify the low-frequency audio signal In order to make the amplified audio signal enough to drive the woofer. On the other hand, when the mid-high frequency audio signal...

Claims

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Application Information

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IPC IPC(8): H04R3/00H04R1/22H04R1/10
CPCH04R3/00H04R1/22H04R1/1091
Inventor 边仿
Owner 昆山海菲曼科技集团有限公司
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