CN104469623A - Sound field adjusting system and method based on car pillow - Google Patents
Sound field adjusting system and method based on car pillow Download PDFInfo
- Publication number
- CN104469623A CN104469623A CN201410701003.8A CN201410701003A CN104469623A CN 104469623 A CN104469623 A CN 104469623A CN 201410701003 A CN201410701003 A CN 201410701003A CN 104469623 A CN104469623 A CN 104469623A
- Authority
- CN
- China
- Prior art keywords
- sound field
- time delay
- headrest
- voice
- grade channel
- 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.)
- Granted
Links
Abstract
The invention provides a sound field adjusting system and method based on a car pillow. The system comprises a pillow detection and positioning module and a sound field adjusting control module; the pillow detection and positioning module is used for conducting infrared sensing detection on the car pillow within an appropriate distance; when radiation heat is detected, passenger distribution information in a car body is determined according to radiation heat signals, and the sound field center position is determined according to the passenger distribution information. The sound field adjusting control module is used for enabling a car navigation multimedia terminal to control and adjust delayed proportion information of various voice frequency channels of a voice frequency DSP, convert the delayed proportion information through a DAC and transmit the delayed proportion information to the voice frequency channels according to the sound field center position, and the voice frequency channels make sounds through a power amplifier control loudspeaker according to delayed proportion simulation voice frequency signals. By means of the sound field adjusting system and method, a sound field center in the car navigation multimedia terminal is determined by real-time passenger distribution in the car body, tedious operation and errors of manual adjustment of a user are avoided, and great convenience is brought to the user.
Description
Technical field
The present invention relates to sound field Calibration Technology field, in particular a kind of system and method regulating sound field based on automotive headrest.
Background technology
Along with the progress of sound system, current sound system by the single sound channel of earliest period, develops into and plays out stereosonic dual track, or even multichannel around audio, and multichannel bring splendid audio experience around audio to user.Then needing adjustment sound field center to realize best audio, making sound field center concentrate on the most concentrated place of people's ear hearing.At present, vehicle navigation multimedia system, only can switch, automatically can not detect the real-time change of sound field center, thus determine the time delay ratio of each voice-grade channel under multiple audio patterns of default setting, to realize best auditory effect.
Therefore prior art awaits further improvement.
Summary of the invention
In view of above-mentioned weak point of the prior art, the object of the invention is to for user provides a kind of system and method regulating sound field based on automotive headrest, be intended to solve the real-time change that automatically can not detect sound field center in prior art, thus determine the time delay ratio of each voice-grade channel, to realize the problem of best auditory effect.
The technical scheme that technical solution problem of the present invention adopts is as follows:
Regulate a system for sound field based on automotive headrest, wherein, comprising:
Headrest detects and locating module, for carrying out infrared sensing detection in automotive headrest one distance to a declared goal, when radiations heat energy having been detected, then according to the Passenger's distribution information in radiations heat energy signal determination vehicle body, and according to described Passenger's distribution information determination sound field center;
Sound field regulable control module, for vehicle navigation multimedia terminal according to described sound field center, the time delay percent information of each voice-grade channel of regulating and controlling audio frequency DSP is also sent to each voice-grade channel through DAC conversion, each voice-grade channel according to the simulated audio signal of described time delay ratio through power amplifier control loudspeaker sounding.
The described system regulating sound field based on automotive headrest, wherein, described headrest detects and locating module specifically comprises:
Headrest infrared sensing detecting unit, for carrying out infrared sensing detection in automotive headrest one distance to a declared goal, when radiations heat energy having been detected, having sent radiations heat energy to position distribution detecting unit and having changed signal;
Position distribution detecting unit, the radiations heat energy sent for receiving described headrest infrared sensing detecting unit changes signal, and change the Passenger's distribution information in signal determination vehicle body according to described radiations heat energy, then according to described Passenger's distribution information determination sound field center.
The described system regulating sound field based on automotive headrest, wherein, described sound field regulable control module specifically comprises:
Time delay ratio obtains control unit, for vehicle navigation multimedia terminal according to described sound field center, regulates the time delay percent information of each voice-grade channel, and described time delay percent information is sent to audio frequency DSP unit by USART or I2C agreement;
Audio frequency DSP unit, obtaining the described time delay percent information of control unit transmission, regulating the time delay ratio of each voice-grade channel according to time delay percent information for receiving described time delay ratio, after DAC conversion, send corresponding time delay simulated audio signal to each voice-grade channel;
Power amplifier and speaker unit, sent corresponding time delay simulated audio signal for audio reception DSP unit to each voice-grade channel, and output to loud speaker sounding after being amplified by power amplifier by described time delay simulated audio signal.
The described system regulating sound field based on automotive headrest, wherein, described distance to a declared goal is 5-15cm.
The described system regulating sound field based on automotive headrest, wherein, the number of described headrest infrared sensing detecting unit is identical with automotive seat number.
Regulate a method for sound field based on automotive headrest, wherein, described method comprises step:
A, carry out infrared sensing detection in automotive headrest one distance to a declared goal, when radiations heat energy having been detected, then according to the Passenger's distribution information in radiations heat energy signal determination vehicle body, and according to described Passenger's distribution information determination sound field center;
B, vehicle navigation multimedia terminal are according to described sound field center, the time delay percent information of each voice-grade channel of regulating and controlling audio frequency DSP is also sent to each voice-grade channel through DAC conversion, each voice-grade channel according to the simulated audio signal of described time delay ratio through power amplifier control loudspeaker sounding.
The described method regulating sound field based on automotive headrest, wherein, described steps A specifically comprises:
A1, headrest infrared sensing detecting unit carry out infrared sensing detection in automotive headrest one distance to a declared goal, when radiations heat energy having been detected, having sent radiations heat energy change signal to position distribution detecting unit;
A2, described position distribution detecting unit receive the radiations heat energy change signal that described headrest infrared sensing detecting unit sends, and change the Passenger's distribution information in signal determination vehicle body according to described radiations heat energy, then according to described Passenger's distribution information determination sound field center.
The described method regulating sound field based on automotive headrest, wherein, described step B specifically comprises:
B1, vehicle navigation multimedia terminal, according to described sound field center, regulate the time delay percent information of each voice-grade channel, and described time delay percent information is sent to audio frequency DSP unit by USART or I2C agreement;
B2, audio frequency DSP unit receive the described time delay percent information that described time delay ratio obtains control unit transmission, regulate the time delay ratio of each voice-grade channel according to time delay percent information, after DAC conversion, send corresponding time delay simulated audio signal to each voice-grade channel;
B3, power amplifier and speaker unit audio reception DSP unit send corresponding time delay simulated audio signal to each voice-grade channel, and output to loud speaker sounding after being amplified by power amplifier by described time delay simulated audio signal.
The described method regulating sound field based on automotive headrest, wherein, described distance to a declared goal is 5-15cm.
The described method regulating sound field based on automotive headrest, wherein, the number of described headrest infrared sensing detecting unit is identical with automotive seat number.
A kind of system and method regulating sound field based on automotive headrest provided by the present invention, system comprises: headrest detects and locating module, for carrying out infrared sensing detection in automotive headrest one distance to a declared goal, when radiations heat energy having been detected, then according to the Passenger's distribution information in radiations heat energy signal determination vehicle body, and according to described Passenger's distribution information determination sound field center; Sound field regulable control module, for vehicle navigation multimedia terminal according to described sound field center, the time delay percent information of each voice-grade channel of regulating and controlling audio frequency DSP is also sent to each voice-grade channel through DAC conversion, each voice-grade channel according to the simulated audio signal of described time delay ratio through power amplifier control loudspeaker sounding.The sound field center that present invention achieves in vehicle navigation multimedia terminal is determined by the real-time Passenger's distribution in vehicle body, avoids troublesome operation and the error of user's manual adjustments, greatly facilitates user.
Accompanying drawing explanation
Fig. 1 is the structured flowchart regulating the system preferred embodiment of sound field based on automotive headrest of the present invention.
Fig. 2 is the concrete structure block diagram regulating headrest detection and locating module in the system of sound field based on automotive headrest of the present invention.
Fig. 3 is the concrete structure block diagram regulating the system middle pitch field control control module of sound field based on automotive headrest of the present invention.
Fig. 4 is the flow chart regulating the method preferred embodiment of sound field based on automotive headrest of the present invention.
Fig. 5 is the particular flow sheet regulating step S100 in the method for sound field based on automotive headrest of the present invention.
Fig. 6 is the particular flow sheet regulating step S200 in the method for sound field based on automotive headrest of the present invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only for explaining the present invention, being not intended to limit the present invention.
Refer to Fig. 1, Fig. 1 is the structured flowchart regulating the system preferred embodiment of sound field based on automotive headrest of the present invention.As shown in Figure 1, the described system regulating sound field based on automotive headrest, comprising:
Headrest detects and locating module 100, for carrying out infrared sensing detection in automotive headrest one distance to a declared goal, when radiations heat energy having been detected, then according to the Passenger's distribution information in radiations heat energy signal determination vehicle body, and according to described Passenger's distribution information determination sound field center
In prior art, owing to being subject to the impact of frequency response curve skewness and audio amplifier directive property, sound equipment to broadcast the sound field come be in fact more or less discrepant with situation during former recording.Sound field technology is exactly allow to be presented in face of listener or around technology as far as possible consistent when the spatial impression of the three-dimensional of surrounding and recording, to be the specification to recording site, reproduction system and coding, decoding.Sound field center is then topmost regulating parameter in sound field adjustment, and one is adjusted to appropriate location can bring best audio experience to user.
In preferred embodiment of the present invention, described headrest detects and whether locating module 100 is exactly detect radiations heat energy in seat distance to a declared goal change according to being arranged on the infrared sensor that each seat is rested the head on, then sat down in this seat known when changing passenger, and wherein said distance to a declared goal is set to 5-15cm.Until when the Passenger's distribution information in vehicle body being detected, then according to Passenger's distribution information determination sound field center.
Sound field regulable control module 200, for vehicle navigation multimedia terminal according to described sound field center, the time delay percent information of each voice-grade channel of regulating and controlling audio frequency DSP is also sent to each voice-grade channel through DAC conversion, each voice-grade channel according to the simulated audio signal of described time delay ratio through power amplifier control loudspeaker sounding.
Obviously, after sound field centralized positioning module 100 determines sound field center, the time delay ratio of each voice-grade channel in vehicle navigation multimedia terminal need be regulated, to guarantee that the sound field center of vehicle navigation multimedia terminal is at assigned address by sound field regulable control module 200.
Further, as shown in Figure 2, described headrest detection and locating module 100 specifically comprise:
Headrest infrared sensing detecting unit 101, for carrying out infrared sensing detection in automotive headrest one distance to a declared goal, when radiations heat energy having been detected, having sent radiations heat energy to position distribution detecting unit and having changed signal.
Concrete, described headrest infrared sensing detecting unit 101 is arranged on each the chair headrest place in body of a motor car, and also namely the number of described headrest infrared sensing detecting unit 101 is identical with automotive seat number.
Position distribution detecting unit 102, the radiations heat energy sent for receiving described headrest infrared sensing detecting unit 101 changes signal, and change the Passenger's distribution information in signal determination vehicle body according to described radiations heat energy, then according to described Passenger's distribution information determination sound field center.
Wherein, described Passenger's distribution information is the location distribution information of seated passenger in multiple seats for determining in vehicle body.Such as, the car of a double all the people present, before the seat that keeps left be operator seat, before seat of keeping right be co-driver, after two seats be then passenger position; More specifically, can in car seat distribution plane set up the direct coordinate system of a plane, as with headstock left end point for the origin of coordinates, with vehicle body direction backwards for Y-axis, to set up XOY rectangular coordinate system perpendicular to vehicle body direction backwards and towards the direction of car left end for X-axis; And setting operator seat coordinate as (1,1), co-driver coordinate is (2,1), and the back seat seat coordinate that keeps left keeps right seat coordinate for (2,2) for (2,1) and back seat; When only detecting that the pressure of operator seat changes, then Passenger's distribution information be Passenger's distribution in (1,1) point, can determine that sound field center is for (1,1) according to this Passenger's distribution information; When detecting that the pressure of main driving position and co-driver all changes, then Passenger's distribution information be Passenger's distribution in (1,1) and (2,1) point, can determine that sound field center is for (1.5,1) according to this Passenger's distribution information.Visible, change in real time according to the infrared sensor radiations heat energy detected in distance to a declared goal and determine Passenger's distribution information, again according to Passenger's distribution information determination sound field center, achieve automatic detection and the automatic switchover of sound field center, without the need to each channel parameters of user's manual adjustments stereo set, avoid the error that loaded down with trivial details user operation and inaccurate adjustment bring, greatly aspect user.
Further, as shown in Figure 3, described sound field regulable control module 200 specifically comprises:
Time delay ratio obtains control unit 201, for vehicle navigation multimedia terminal according to described sound field center, regulates the time delay percent information of each voice-grade channel, and described time delay percent information is sent to audio frequency DSP unit 202 by USART or I2C agreement;
Audio frequency DSP unit 202, the described time delay percent information of control unit 201 transmission is obtained for receiving described time delay ratio, regulate the time delay ratio of each voice-grade channel according to time delay percent information, after DAC conversion, send corresponding time delay simulated audio signal to each voice-grade channel;
Power amplifier and speaker unit 203, sent corresponding time delay simulated audio signal for audio reception DSP unit 202 to each voice-grade channel, and output to loud speaker sounding after being amplified by power amplifier by described time delay simulated audio signal.
In preferred embodiment of the present invention, after vehicle navigation multimedia terminal receives sound field center, automatically the time delay ratio of each voice-grade channel will automatically be set in pre-configured preservation each position center sound field time delay scale base, each voice-grade channel time delay ratio is obtained control unit 201 by time delay ratio and is sent to audio frequency DSP unit 202, each voice-grade channel time delay ratio is adjusted according to system processor instruction by audio frequency DSP unit 202, after export the time delay simulated audio signal of respective channel again, give rear class power amplifier to amplify and output to loudspeaker and sound, sound wave amplitude-frequency signal ADC will be received by position audio receiver (being arranged on automotive headrest place) again and change sampling, correct by delivering to DSP unit with the comparison operation of default center sound field benchmark, obtain the mutual data communication of control unit with time delay ratio verify or adjust, to reach the accuracy of current automatic adjustment sound field.
Based on said system, present invention also offers a kind of method regulating sound field based on automotive headrest.As shown in Figure 4, the described method regulating sound field based on automotive headrest, comprising:
Step S100, carry out infrared sensing detection in automotive headrest one distance to a declared goal, when radiations heat energy having been detected, then according to the Passenger's distribution information in radiations heat energy signal determination vehicle body, and according to described Passenger's distribution information determination sound field center; As detailed above.
Step S200, vehicle navigation multimedia terminal are according to described sound field center, the time delay percent information of each voice-grade channel of regulating and controlling audio frequency DSP is also sent to each voice-grade channel through DAC conversion, each voice-grade channel according to the simulated audio signal of described time delay ratio through power amplifier control loudspeaker sounding; As detailed above.
Further, as shown in Figure 5, regulate based on automotive headrest in the method for sound field described, described step S100 specifically comprises:
Step S101, headrest infrared sensing detecting unit carry out infrared sensing detection in automotive headrest one distance to a declared goal, when radiations heat energy having been detected, having sent radiations heat energy change signal to position distribution detecting unit; As detailed above.
Step S102, described position distribution detecting unit receive the radiations heat energy change signal that described headrest infrared sensing detecting unit sends, and change the Passenger's distribution information in signal determination vehicle body according to described radiations heat energy, then according to described Passenger's distribution information determination sound field center; As detailed above.
Further, as shown in Figure 6, regulate based on automotive headrest in the method for sound field described, described step S200 specifically comprises:
Step S201, vehicle navigation multimedia terminal, according to described sound field center, regulate the time delay percent information of each voice-grade channel, and described time delay percent information is sent to audio frequency DSP unit by USART or I2C agreement; As detailed above.
Step S202, audio frequency DSP unit receive the described time delay percent information that described time delay ratio obtains control unit transmission, regulate the time delay ratio of each voice-grade channel according to time delay percent information, after DAC conversion, send corresponding time delay simulated audio signal to each voice-grade channel; As detailed above.
Step S203, power amplifier and speaker unit audio reception DSP unit send corresponding time delay simulated audio signal to each voice-grade channel, and output to loud speaker sounding after being amplified by power amplifier by described time delay simulated audio signal; As detailed above.
Further, regulate based on automotive headrest in the method for sound field described, described distance to a declared goal is 5-15cm; As detailed above.
Further, regulate based on automotive headrest in the method for sound field described, the number of described headrest infrared sensing detecting unit is identical with automotive seat number; As detailed above.
In sum, a kind of system and method regulating sound field based on automotive headrest provided by the present invention, system comprises: headrest detects and locating module, for carrying out infrared sensing detection in automotive headrest one distance to a declared goal, when radiations heat energy having been detected, then according to the Passenger's distribution information in radiations heat energy signal determination vehicle body, and according to described Passenger's distribution information determination sound field center; Sound field regulable control module, for vehicle navigation multimedia terminal according to described sound field center, the time delay percent information of each voice-grade channel of regulating and controlling audio frequency DSP is also sent to each voice-grade channel through DAC conversion, each voice-grade channel according to the simulated audio signal of described time delay ratio through power amplifier control loudspeaker sounding.The sound field center that present invention achieves in vehicle navigation multimedia terminal is determined by the real-time Passenger's distribution in vehicle body, avoids troublesome operation and the error of user's manual adjustments, greatly facilitates user.
Be understandable that, for those of ordinary skills, can be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, and all these change or replace the protection range that all should belong to the claim appended by the present invention.
Claims (10)
1. regulate a system for sound field based on automotive headrest, it is characterized in that, comprising:
Headrest detects and locating module, for carrying out infrared sensing detection in automotive headrest one distance to a declared goal, when radiations heat energy having been detected, then according to the Passenger's distribution information in radiations heat energy signal determination vehicle body, and according to described Passenger's distribution information determination sound field center;
Sound field regulable control module, for vehicle navigation multimedia terminal according to described sound field center, the time delay percent information of each voice-grade channel of regulating and controlling audio frequency DSP is also sent to each voice-grade channel through DAC conversion, each voice-grade channel according to the simulated audio signal of described time delay ratio through power amplifier control loudspeaker sounding.
2. regulate the system of sound field according to claim 1 based on automotive headrest, it is characterized in that, described headrest detects and locating module specifically comprises:
Headrest infrared sensing detecting unit, for carrying out infrared sensing detection in automotive headrest one distance to a declared goal, when radiations heat energy having been detected, having sent radiations heat energy to position distribution detecting unit and having changed signal;
Position distribution detecting unit, the radiations heat energy sent for receiving described headrest infrared sensing detecting unit changes signal, and change the Passenger's distribution information in signal determination vehicle body according to described radiations heat energy, then according to described Passenger's distribution information determination sound field center.
3. regulate the system of sound field according to claim 2 based on automotive headrest, it is characterized in that, described sound field regulable control module specifically comprises:
Time delay ratio obtains control unit, for vehicle navigation multimedia terminal according to described sound field center, regulates the time delay percent information of each voice-grade channel, and described time delay percent information is sent to audio frequency DSP unit by USART or I2C agreement;
Audio frequency DSP unit, obtaining the described time delay percent information of control unit transmission, regulating the time delay ratio of each voice-grade channel according to time delay percent information for receiving described time delay ratio, after DAC conversion, send corresponding time delay simulated audio signal to each voice-grade channel;
Power amplifier and speaker unit, sent corresponding time delay simulated audio signal for audio reception DSP unit to each voice-grade channel, and output to loud speaker sounding after being amplified by power amplifier by described time delay simulated audio signal.
4. regulate the system of sound field according to claim 1 based on automotive headrest, it is characterized in that, described distance to a declared goal is 5-15cm.
5. regulate the system of sound field according to claim 2 based on automotive headrest, it is characterized in that, the number of described headrest infrared sensing detecting unit is identical with automotive seat number.
6. regulate a method for sound field based on automotive headrest, it is characterized in that, described method comprises step:
A, carry out infrared sensing detection in automotive headrest one distance to a declared goal, when radiations heat energy having been detected, then according to the Passenger's distribution information in radiations heat energy signal determination vehicle body, and according to described Passenger's distribution information determination sound field center;
B, vehicle navigation multimedia terminal are according to described sound field center, the time delay percent information of each voice-grade channel of regulating and controlling audio frequency DSP is also sent to each voice-grade channel through DAC conversion, each voice-grade channel according to the simulated audio signal of described time delay ratio through power amplifier control loudspeaker sounding.
7. regulate the method for sound field according to claim 6 based on automotive headrest, it is characterized in that, described steps A specifically comprises:
A1, headrest infrared sensing detecting unit carry out infrared sensing detection in automotive headrest one distance to a declared goal, when radiations heat energy having been detected, having sent radiations heat energy change signal to position distribution detecting unit;
A2, described position distribution detecting unit receive the radiations heat energy change signal that described headrest infrared sensing detecting unit sends, and change the Passenger's distribution information in signal determination vehicle body according to described radiations heat energy, then according to described Passenger's distribution information determination sound field center.
8. regulate the method for sound field according to claim 7 based on automotive headrest, it is characterized in that, described step B specifically comprises:
B1, vehicle navigation multimedia terminal, according to described sound field center, regulate the time delay percent information of each voice-grade channel, and described time delay percent information is sent to audio frequency DSP unit by USART or I2C agreement;
B2, audio frequency DSP unit receive the described time delay percent information that described time delay ratio obtains control unit transmission, regulate the time delay ratio of each voice-grade channel according to time delay percent information, after DAC conversion, send corresponding time delay simulated audio signal to each voice-grade channel;
B3, power amplifier and speaker unit audio reception DSP unit send corresponding time delay simulated audio signal to each voice-grade channel, and output to loud speaker sounding after being amplified by power amplifier by described time delay simulated audio signal.
9. regulate the method for sound field according to claim 6 based on automotive headrest, it is characterized in that, described distance to a declared goal is 5-15cm.
10. regulate the method for sound field according to claim 7 based on automotive headrest, it is characterized in that, the number of described headrest infrared sensing detecting unit is identical with automotive seat number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410701003.8A CN104469623B (en) | 2014-11-28 | 2014-11-28 | Sound field adjusting system and method based on car pillow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410701003.8A CN104469623B (en) | 2014-11-28 | 2014-11-28 | Sound field adjusting system and method based on car pillow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104469623A true CN104469623A (en) | 2015-03-25 |
| CN104469623B CN104469623B (en) | 2017-01-11 |
Family
ID=52914857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410701003.8A Expired - Fee Related CN104469623B (en) | 2014-11-28 | 2014-11-28 | Sound field adjusting system and method based on car pillow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104469623B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107392094A (en) * | 2017-06-14 | 2017-11-24 | 蔚来汽车有限公司 | The system and method for adjust automatically vehicle audio audio pattern |
| CN109922411A (en) * | 2019-01-29 | 2019-06-21 | 惠州市华智航科技有限公司 | Sound field control method and sound field control system |
| CN110113693A (en) * | 2018-02-01 | 2019-08-09 | 通用汽车环球科技运作有限责任公司 | The method and apparatus for adjusting audio output according to the position of headrest |
| CN110647304A (en) * | 2019-09-20 | 2020-01-03 | 宝能汽车有限公司 | Method and system for adjusting sound effect of vehicle-mounted sound |
| WO2022188434A1 (en) * | 2021-03-12 | 2022-09-15 | 华南理工大学 | Vehicle-mounted sound playback signal delay method adapted to listening center position |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101282592A (en) * | 2008-05-15 | 2008-10-08 | 华硕电脑股份有限公司 | Acoustics system with audio field adjusting function as well as method for adjusting audio field |
| CN202528932U (en) * | 2012-03-29 | 2012-11-14 | 吉林大学 | Prevention and control system for carbon monoxide poisoning in automobile idling |
| CN103220594A (en) * | 2012-01-20 | 2013-07-24 | 新昌有限公司 | Sound effect regulating and controlling system for vehicle |
| CN103692967A (en) * | 2013-12-20 | 2014-04-02 | 奇瑞汽车股份有限公司 | Listening position adjusting method and system for automobile sound box |
-
2014
- 2014-11-28 CN CN201410701003.8A patent/CN104469623B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101282592A (en) * | 2008-05-15 | 2008-10-08 | 华硕电脑股份有限公司 | Acoustics system with audio field adjusting function as well as method for adjusting audio field |
| CN103220594A (en) * | 2012-01-20 | 2013-07-24 | 新昌有限公司 | Sound effect regulating and controlling system for vehicle |
| CN202528932U (en) * | 2012-03-29 | 2012-11-14 | 吉林大学 | Prevention and control system for carbon monoxide poisoning in automobile idling |
| CN103692967A (en) * | 2013-12-20 | 2014-04-02 | 奇瑞汽车股份有限公司 | Listening position adjusting method and system for automobile sound box |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107392094A (en) * | 2017-06-14 | 2017-11-24 | 蔚来汽车有限公司 | The system and method for adjust automatically vehicle audio audio pattern |
| WO2018228404A1 (en) * | 2017-06-14 | 2018-12-20 | 蔚来汽车有限公司 | System and method for automatically adjusting sound effect modes of onboard audio |
| CN110113693A (en) * | 2018-02-01 | 2019-08-09 | 通用汽车环球科技运作有限责任公司 | The method and apparatus for adjusting audio output according to the position of headrest |
| CN109922411A (en) * | 2019-01-29 | 2019-06-21 | 惠州市华智航科技有限公司 | Sound field control method and sound field control system |
| CN110647304A (en) * | 2019-09-20 | 2020-01-03 | 宝能汽车有限公司 | Method and system for adjusting sound effect of vehicle-mounted sound |
| WO2022188434A1 (en) * | 2021-03-12 | 2022-09-15 | 华南理工大学 | Vehicle-mounted sound playback signal delay method adapted to listening center position |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104469623B (en) | 2017-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104469596A (en) | Sound field adjusting system and method based on car seat pressure sensor | |
| CN104469623B (en) | Sound field adjusting system and method based on car pillow | |
| US7123731B2 (en) | System and method for optimization of three-dimensional audio | |
| US7933418B2 (en) | Sound reproducing apparatus and method of identifying positions of speakers | |
| US8588432B1 (en) | Apparatus and method for authorizing reproduction and controlling of program transmissions at locations distant from the program source | |
| US7676044B2 (en) | Multi-speaker audio system and automatic control method | |
| ES2934801T3 (en) | Audio processor, system, procedure and computer program for audio rendering | |
| CN1744770B (en) | Device for converting video frequency signal and/or related audio frequency signal | |
| US9769585B1 (en) | Positioning surround sound for virtual acoustic presence | |
| WO2009131658A3 (en) | An electrical system for a speaker and its control | |
| CN107690117A (en) | Binaural hearing aid device | |
| CN109195063B (en) | Stereo sound generating system and method | |
| JP3896865B2 (en) | Multi-channel audio system | |
| US9124978B2 (en) | Speaker array apparatus, signal processing method, and program | |
| US9686626B2 (en) | Audio system and method | |
| JP2005057545A (en) | Sound field controller and sound system | |
| US6990210B2 (en) | System for headphone-like rear channel speaker and the method of the same | |
| US20210168549A1 (en) | Audio processing device, audio processing method, and program | |
| US10861465B1 (en) | Automatic determination of speaker locations | |
| CN102238464B (en) | Method and device for adjusting volume balance | |
| CN108966112B (en) | Time delay parameter adjusting method, system and device | |
| JPH06165297A (en) | Speaker balance adjustment device | |
| US20230199426A1 (en) | Audio signal output method, audio signal output device, and audio system | |
| US10820129B1 (en) | System and method for performing automatic sweet spot calibration for beamforming loudspeakers | |
| KR101071895B1 (en) | Adaptive Sound Generator based on an Audience Position Tracking Technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20201128 |