CN218850973U - Loudspeaker frequency response equalization compensation system and electronic equipment - Google Patents
Loudspeaker frequency response equalization compensation system and electronic equipment Download PDFInfo
- Publication number
- CN218850973U CN218850973U CN202223290054.5U CN202223290054U CN218850973U CN 218850973 U CN218850973 U CN 218850973U CN 202223290054 U CN202223290054 U CN 202223290054U CN 218850973 U CN218850973 U CN 218850973U
- Authority
- CN
- China
- Prior art keywords
- frequency response
- loudspeaker
- equalization compensation
- speaker
- frequency
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Circuit For Audible Band Transducer (AREA)
Abstract
The utility model discloses a speaker frequency response equalization compensation system and electronic equipment, the speaker frequency response equalization compensation system comprises a digital microphone interface processing circuit, an SOC microprocessor and a speaker; the system comprises an SOC microprocessor, a loudspeaker and a digital microphone interface processing circuit, wherein the SOC microprocessor is internally provided with 20-20000Hz frequency sweeping signals and pre-stored with frequency response curves, is connected with the loudspeaker through an audio power amplifier and is used for outputting the 20-20000Hz frequency sweeping signals to the audio power amplifier and driving the loudspeaker to sound, and the digital microphone interface processing circuit is used for receiving echo signals of the 20-20000Hz frequency sweeping signals and carrying out equalization compensation on the echo signals according to the pre-stored frequency response curves so as to enable the output frequency response curves to be overall smooth; the utility model discloses carry out the equalization compensation according to the frequency response curve that presets, make the frequency response curve through the power amplifier output whole level and smooth to reach the holistic best sound effects of speaker system.
Description
Technical Field
The utility model relates to a frequency response equalization compensation technical field, especially a speaker frequency response equalization compensation system and electronic equipment.
Background
The traditional scheme for the speaker frequency response equalization compensation is that a special full-silencing test system is used for testing the sound curve of a speaker system of the device, and then the corresponding equalization compensation is carried out through the electric curve of the whole device, so that the sound curve of the whole device is basically smooth within the range of 20-20000Hz, and the best sound effect of the whole device is achieved.
With the popularization and development of internet technology, various intelligent devices and terminals emerge endlessly. Far-field voice control technology aiming at the smart television and the smart sound is relatively mature at present; how to realize the compensation and promotion of the loudspeaker sound effect of the intelligent equipment through the far-field language function becomes a new research direction.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the prior art, the utility model aims at providing a speaker frequency response equalization compensation system and electronic equipment, the utility model discloses carry out equalization compensation according to the frequency response curve that presets, make the frequency response curve through the power amplifier output whole level and smooth to reach the holistic best sound effect of speaker system.
In order to achieve the above object, the utility model adopts the following technical scheme: a speaker frequency response equalization compensation system comprises a digital microphone interface processing circuit, an SOC microprocessor and a speaker; the system comprises an SOC microprocessor, a loudspeaker and a digital microphone interface processing circuit, wherein the SOC microprocessor is internally provided with 20-20000Hz frequency sweeping signals and pre-stored with frequency response curves, the SOC microprocessor is connected with the loudspeaker through an audio power amplifier and is used for outputting the 20-20000Hz frequency sweeping signals to the audio power amplifier and driving the loudspeaker to sound, the digital microphone interface processing circuit is used for receiving echo signals of the 20-20000Hz frequency sweeping signals and carrying out equalization compensation on the echo signals according to the pre-stored frequency response curves so as to enable the output frequency response curves to be smooth integrally.
As a further improvement of the present invention, the digital microphone interface processing circuit further comprises a multi-stage echo cancellation circuit, which is multi-stage and is used for performing noise reduction and echo cancellation processing on the echo signal of the 20-20000Hz frequency sweeping signal.
As a further improvement of the present invention, the frequency response curve is pre-stored in the DSP processor of the SOC microprocessor.
The utility model also discloses an electronic equipment, include as above speaker frequency response equalization compensation system.
As a further improvement, the electronic device is an intelligent television, an intelligent projector or an intelligent sound box.
The utility model has the advantages that:
the utility model has simple control circuit, stable work, high reliability and can accurately test the sound field curve of the compensation product; the audio frequency sound automatic compensation device is suitable for audio frequency sound automatic compensation of high-end intelligent televisions, intelligent projectors, intelligent sound equipment and other households, and improves the sound effect of products.
Drawings
Fig. 1 is a system block diagram of an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Examples
As shown in fig. 1, an automatic frequency response compensation and equalization system for a built-in speaker system of a smart tv or a stereo comprises one or more digital silicon microphones (e.g. a far-field voice module of the smart tv or the stereo) for collecting echo signals of sounds emitted by the built-in speaker system in all directions, the echo signals enter a digital audio processor through a digital microphone interface processing circuit such as an IIS or PCM interface circuit, the digital audio processor comprises a multi-stage echo cancellation circuit (AEC), the echo signals are sent to a DSP processor of an SOC microprocessor through echo noise suppression, equalization compensation is carried out on the echo signals according to a pre-stored frequency response curve, and the compensated digital audio signals are output to an audio power amplifier and drive the speaker system. A loudspeaker is formed to sound through a 20-20000HZ sweep frequency signal built in an SOC microprocessor, a digital microphone interface processing circuit receives an echo signal, a closed loop system is used for carrying out equalization compensation through an internal DSP, and after equalization compensation, a frequency response curve output by a power amplifier is integrally smooth, so that the integral optimal sound effect of the loudspeaker system is achieved.
The microphone digital audio receiving and processing circuit comprises a multi-stage echo cancellation circuit (AEC), receives echo sounds of 20-20000HZ sweep signals emitted by a speaker system of a smart television or a sound box per se in all directions, and performs noise reduction and echo cancellation processing.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (5)
1. A speaker frequency response equalization compensation system is characterized by comprising a digital microphone interface processing circuit, an SOC microprocessor and a speaker; the system comprises an SOC microprocessor, a loudspeaker and a digital microphone interface processing circuit, wherein the SOC microprocessor is internally provided with 20-20000Hz frequency sweeping signals and pre-stored with frequency response curves, the SOC microprocessor is connected with the loudspeaker through an audio power amplifier and is used for outputting the 20-20000Hz frequency sweeping signals to the audio power amplifier and driving the loudspeaker to sound, the digital microphone interface processing circuit is used for receiving echo signals of the 20-20000Hz frequency sweeping signals and carrying out equalization compensation on the echo signals according to the pre-stored frequency response curves so as to enable the output frequency response curves to be smooth integrally.
2. The system of claim 1, wherein the digital microphone interface processing circuitry further comprises a multi-stage echo cancellation circuitry, the multi-stage echo cancellation circuitry configured to perform noise reduction and echo cancellation processing on the echo signal of the 20-20000Hz swept frequency signal.
3. The speaker frequency response equalization compensation system of claim 1 wherein the frequency response curve is pre-stored in a DSP processor of the SOC microprocessor.
4. An electronic device comprising a loudspeaker frequency response equalization compensation system as claimed in any one of claims 1-3.
5. The electronic device of claim 4, wherein the electronic device is a smart television, a smart projector, or a smart stereo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223290054.5U CN218850973U (en) | 2022-12-08 | 2022-12-08 | Loudspeaker frequency response equalization compensation system and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223290054.5U CN218850973U (en) | 2022-12-08 | 2022-12-08 | Loudspeaker frequency response equalization compensation system and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218850973U true CN218850973U (en) | 2023-04-11 |
Family
ID=87302012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223290054.5U Active CN218850973U (en) | 2022-12-08 | 2022-12-08 | Loudspeaker frequency response equalization compensation system and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218850973U (en) |
-
2022
- 2022-12-08 CN CN202223290054.5U patent/CN218850973U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204090123U (en) | Audio output control circuit and audio-frequence player device | |
| CN201054780Y (en) | Automatic noise reduction earphone | |
| CN209845280U (en) | Voice sound pickup circuit and device | |
| CN203537555U (en) | Audio device | |
| CN108401204A (en) | A kind of novel active noise reduction earphone | |
| CN218850973U (en) | Loudspeaker frequency response equalization compensation system and electronic equipment | |
| CN203407000U (en) | Voice output adjustment circuit and audio and video playing equipment | |
| CN109348385A (en) | A kind of microphone and electronic equipment with echo sound-attenuating system | |
| CN209390369U (en) | A kind of microphone and electronic equipment with echo sound-attenuating system | |
| CN210667784U (en) | Multimedia video and audio system | |
| CN209861093U (en) | Active sound box and passive sound box with wired and wireless inner recording and live broadcasting | |
| CN208798146U (en) | A kind of multi-mode radio microphone apparatus | |
| CN208522932U (en) | A kind of double magnetic are total to chamber earphone horn | |
| CN209184781U (en) | A kind of Baffle Box of Bluetooth for eliminating echo | |
| CN208509257U (en) | Loudspeaker and sound box system | |
| CN207926903U (en) | A kind of stereo set and its audio signal transmission circuit | |
| CN108111955B (en) | Loudspeaking terminal equipment and loudspeaking power supply circuit | |
| CN110099342A (en) | Telecommunication equipment | |
| CN2595101Y (en) | Non-held structure against background noise | |
| CN212970027U (en) | Low-noise pickup system of digital microphone | |
| CN103002236A (en) | Method and system used for adjusting volume and based on environment noise and television | |
| CN110289025A (en) | A kind of multi-medium video-signal sound system | |
| CN208691519U (en) | A kind of DSP wireless microphone sound equipment noise reduction system | |
| CN217088136U (en) | Karaoke system with howling suppression function | |
| CN109246514A (en) | A kind of wireless speakers and earphone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |