CN201663677U - Sound column based on electronic control - Google Patents

Sound column based on electronic control Download PDF

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Publication number
CN201663677U
CN201663677U CN2009202631065U CN200920263106U CN201663677U CN 201663677 U CN201663677 U CN 201663677U CN 2009202631065 U CN2009202631065 U CN 2009202631065U CN 200920263106 U CN200920263106 U CN 200920263106U CN 201663677 U CN201663677 U CN 201663677U
Authority
CN
China
Prior art keywords
unit
audio signal
sound column
power amplifier
frequency response
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009202631065U
Other languages
Chinese (zh)
Inventor
王齐祥
谭志华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou DSPPA Audio Co Ltd
Original Assignee
Guangzhou DSPPA Audio Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou DSPPA Audio Co Ltd filed Critical Guangzhou DSPPA Audio Co Ltd
Priority to CN2009202631065U priority Critical patent/CN201663677U/en
Application granted granted Critical
Publication of CN201663677U publication Critical patent/CN201663677U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

The utility model discloses a sound column based on electronic control. The sound column comprises a casing, and an audio signal processing unit mounted in the casing, wherein the audio signal processing unit includes an audio input unit, an ADC unit, a DSP unit with frequency response compensation, a power amplifier unit and a speaker unit. The DSP unit can be used for compensating for the frequency response of the sound waves generated by the sound column, so that the speaker has flatter frequency response curve, and the sound quality of the speaker unit can be improved. In addition, the DSP unit can be also provided with equal loudness function and the common audio processing, such as equalizing, filtering, voltage limiting, dynamic control, etc.

Description

A kind of based on electronically controlled sound column
Technical field
The utility model relates to a kind of electro-acoustic product, particularly a kind of sound column.
Background technology
In the electroacoustic techniques, with the single loud speaker whole audio band that is difficult to reset, thus adopt a plurality of loudspeaker units (loudspeaker units of 2 to 3 different frequency bands) whole audio band of resetting in the audio amplifier usually, to obtain higher tonequality.But the frequency band of a plurality of loudspeaker units of sound column is the same, can not cover whole frequency band with said method,, also be difficult to do frequency response curve very smooth even if can cover, the tonequality of the sound that sends is appointed and is weak, and can't satisfy nowadays people to the requirement of high-quality sound column product.
The utility model content
In order to solve the above problems, the purpose of this utility model is to provide a kind of phonation unit frequency response curve more smooth sound column, and it can send high-quality sound.
The technical scheme that the invention for solving the technical problem adopted is:
A kind ofly comprise shell based on electronically controlled sound column, in the described shell audio signal processing unit is installed, described audio signal processing unit comprises:
The audio frequency input unit can insert the audio signal of the medium that come from the outside;
The ADC unit, the output that it connects the audio frequency input unit carries out analog-to-digital conversion to audio signal;
The DSP unit of band compensating for frequency response, its input connects the output of ADC unit, can carry out compensating for frequency response to audio signal;
Power amplifier unit, it is connected the output of DSP unit, can carry out power amplification to audio signal;
Loudspeaker unit, it is connected the output of power amplifier unit, in order to sounding, sonic transmissions is arrived presumptive area.
As further improvement in the technical proposal, described loudspeaker unit is the double diaphragm loud speaker.
As further improvement in the technical proposal, described power amplifier unit is a digital power amplifier.
The beneficial effects of the utility model are: the utility model utilizes the DSP unit, and the frequency response of the sound wave that can send sound column compensates, and makes that the frequency response curve of loud speaker is more smooth, improves the pronunciation tonequality of loudspeaker unit.In addition, can also add in the DSP unit etc. and to ring function, audio commonly used is handled, as equilibrium, filtering, pressure limit, dynamically control etc.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is the utility model audio signal processing unit schematic diagram;
Fig. 2 is a DSP cell signal process chart of the present utility model;
Embodiment
With reference to Fig. 1, with reference to figure 2, of the present utility modelly comprise shell based on electronically controlled sound column, in the described shell audio signal processing unit is installed, described audio signal processing unit comprises:
The audio frequency input unit can insert the audio signal of the medium that come from the outside;
The ADC unit, the output that it connects the audio frequency input unit carries out analog-to-digital conversion to audio signal;
The DSP unit of band compensating for frequency response, its input connects the output of ADC unit, can carry out compensating for frequency response to audio signal;
Power amplifier unit, it is connected the output of DSP unit, can carry out power amplification to audio signal;
Loudspeaker unit, it is connected the output of power amplifier unit, in order to sounding, sonic transmissions is arrived presumptive area.
The utility model can improve the pronunciation tonequality of loudspeaker unit so that the frequency response curve of loud speaker is more smooth.In addition, can also add in the DSP unit etc. and to ring function, audio commonly used is handled, as equilibrium, filtering, pressure limit, dynamically control etc. more convenient practicality.
As further improvement in the technical proposal, described loudspeaker unit is the double diaphragm loud speaker.
As further improvement in the technical proposal, described power amplifier unit is a digital power amplifier.
Certainly, the utility model is created and is not limited to above-mentioned execution mode, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite of the utility model spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.

Claims (3)

1. one kind based on electronically controlled sound column, comprises shell, in the described shell audio signal processing unit is installed, and it is characterized in that described audio signal processing unit comprises:
The audio frequency input unit can insert the audio signal of the medium that come from the outside;
The ADC unit, the output that it connects the audio frequency input unit carries out analog-to-digital conversion to audio signal;
The DSP unit of band compensating for frequency response, its input connects the output of ADC unit, can carry out compensating for frequency response to audio signal;
Power amplifier unit, it is connected the output of DSP unit, can carry out power amplification to audio signal;
Loudspeaker unit, it is connected the output of power amplifier unit, in order to sounding, sonic transmissions is arrived presumptive area.
2. according to claim 1 based on electronically controlled sound column, it is characterized in that: described loudspeaker unit is the double diaphragm loud speaker.
3. according to claim 1 based on electronically controlled sound column, it is characterized in that: described power amplifier unit is a digital power amplifier.
CN2009202631065U 2009-11-20 2009-11-20 Sound column based on electronic control Expired - Fee Related CN201663677U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202631065U CN201663677U (en) 2009-11-20 2009-11-20 Sound column based on electronic control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202631065U CN201663677U (en) 2009-11-20 2009-11-20 Sound column based on electronic control

Publications (1)

Publication Number Publication Date
CN201663677U true CN201663677U (en) 2010-12-01

Family

ID=43234094

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009202631065U Expired - Fee Related CN201663677U (en) 2009-11-20 2009-11-20 Sound column based on electronic control

Country Status (1)

Country Link
CN (1) CN201663677U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117119358A (en) * 2023-10-17 2023-11-24 武汉市聚芯微电子有限责任公司 Compensation method and device for sound image offset side, electronic equipment and storage equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117119358A (en) * 2023-10-17 2023-11-24 武汉市聚芯微电子有限责任公司 Compensation method and device for sound image offset side, electronic equipment and storage equipment
CN117119358B (en) * 2023-10-17 2024-01-19 武汉市聚芯微电子有限责任公司 Compensation method and device for sound image offset side, electronic equipment and storage equipment

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101201

Termination date: 20181120

CF01 Termination of patent right due to non-payment of annual fee