CN104333828A - Adaptive audio control method - Google Patents
Adaptive audio control method Download PDFInfo
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- CN104333828A CN104333828A CN201410547574.0A CN201410547574A CN104333828A CN 104333828 A CN104333828 A CN 104333828A CN 201410547574 A CN201410547574 A CN 201410547574A CN 104333828 A CN104333828 A CN 104333828A
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- body positioning
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Abstract
The invention discloses an adaptive audio control method which comprises a step of detecting whether an audio signal is inputted or not through an audio signal detection module, positioning a user through a human body positioning unit, and converting the received audio signal into multi-path sound channel audio through an audio signal processing module, and a step of controlling the switch-on and switch-off of the power supply of a human body positioning module, an audio signal processing module and a speaker module according to the detection result of the audio signal detection module, and adjusting the multi-path sound channel audio after conversion according to the positioning information of the human body positioning module. According to the adaptive audio control method, the human control is not needed, and a good user experience can be brought to the user.
Description
Technical field
The present invention relates to household electrical appliance, particularly relate to a kind of adaptive audio control method.
Background technology
In audio area, the maximum word heard, probably will count sound channel.Really, but from sound card or audio amplifier, 2.1 sound channels, 5.1 sound channels and 7.1 sound channels etc. can be divided into by it, as seen its importance.
So-called sound channel, refers to sound separate audio signal in different spatial collection or playback when recording or play.And we at ordinary times said channel number i.e. sound recording time source of sound quantity or playback time corresponding number of loudspeakers.
Before decades, sound is all reset out from a loud speaker, Here it is single-channel reproduction.Can say, it is a kind of very original sound reproduction form.Obviously the sound played live in this and music hall has very large difference.Listoning music in music hall, can distinguish the direction of musical instrument sound and the reverberation effect of music hall, and monophony is equivalent to a point sound source, these effects of certainly cannot resetting, so its " presence " is very limited.The position of sound is located, so the effect of its sound is true not because monophony lacks.And until the appearance of sterophonic technique, just revolutionize this situation.Under this technology, sound is assigned to two independently sound channels in recording process, thus reaches good sound localization effect.This technology seems particularly useful in Music Appreciation, audience can clearly tell various musical instrument from direction, thus make the richer imagination of music, be more subject to close to telepresenc.
Along with stereosonic rise, what occur at first works as number dual track.It is recorded by left and right two groups of pick-ups, and two sound channels store and transmit, and two groups of loud speaker playbacks, so also referred to as 2-2-2 systems.
The desire of people is endless, and meet the requirement that people experience the sense of left and right acoustic channels position although stereo, along with further developing of technology, everybody finds that dual track more and more can not meet our demand gradually.Now, be born again a kind of new sound effect---3-D audio.And the effect that will reach, only two audio amplifiers are relied on to be far from being enough, so sterophonic technique just seems awkward in face of 3-D audio, but the quadraphony then well solves this problem (quadraphony mentioned here is but 5 sound channels both 4.1 sound channels when reality uses) around Audiotechnica.
The quadraphony is around defining 4 point of articulations: front left, front right, and rear left, rear right, audience is then enclosed in the middle of this.Also advise increase woofer, to strengthen playback process to low frequency signal (this namely then the pandemic reason of 4.1 track loudspeaker box system) simultaneously.
With regard to whole structure, four-channel sound can for audience bring from multiple different directions sound around, the auditory perception that body faces various varying environment can be obtained, to user with brand-new experience.But, it is enough now for quadrophonic speaker products.Instead, be it what is called improve version---5.1 track loudspeaker boxes.
7.1 systems left and middle right two point of articulations in turn increasing on the basis of 5.1, in the hope of reaching more perfect boundary.
There is requirement the position of these audio systems to user, only when user is in preposition, can obtain maximum music effect, and existing audio system generally can not adjust the audio signal of different sound channel according to the position of user.
Patent " audio system and audio-frequency processing method " (application number: 201210120285.3 applyings date: 2012-04-23) discloses a kind of audio system and audio-frequency processing method.This audio system comprises CPU, digital signal processor and coding decoder.Wherein, digital signal processor connects CPU, in order to auxiliary centre processing unit processes audio signal.Coding decoder is linking number word signal processor, in order to coding and the decoding of auxiliary centre processing unit processes audio files.Digital signal processor is the signal transacting demand receiving CPU output, and the data transmission channel between conducting CPU according to this and coding decoder, to transmit data.
This patent can not adjust the audio signal of different sound channel on the one hand according to the position of user, on the other hand, the switch of audio system all needs Non-follow control, very inconvenient.
Summary of the invention
Technical problem to be solved by this invention is for defect involved in background technology, a kind of adaptive audio control method is provided, can automatic switch power, and can according to the difference adjustment audio track of user position, to user with good Consumer's Experience.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of adaptive audio control method, comprises following steps:
Step 1), arranges the audio-frequency signal processing module being used for original audio signal being converted to multi-Channel Acoustic channel audio;
Step 2), arrange and described multi-Channel Acoustic channel audio loud speaker one to one, and on each loud speaker, arrange one for detecting the human body positioning unit of the spacing of loud speaker and user;
Step 3), whether arrange the detection of audio signal detection module at incoming audio signal place have audio signal to input;
Step 4), when audio signal detection module has detected that audio signal inputs, has processed according to the following steps:
Step 4.1), judge whether the power supply of audio-frequency signal processing module, each loud speaker and each human body positioning unit is connected, if do not connected, then connected;
Step 4.2), the audio signal received is passed to audio-frequency signal processing module, is translated into multi-Channel Acoustic channel audio by audio-frequency signal processing module;
Step 4.3), the human body positioning unit controlled on each loud speaker measures the distance between itself and user;
Step 4.4), according to the distance between each loud speaker and user, the multi-Channel Acoustic channel audio after transformed is adjusted;
Step 4.5), the loud speaker that the multi-Channel Acoustic channel audio after adjustment inputs its correspondence is respectively play;
Step 5), when audio signal detection module continues not detect that the time of audio signal is greater than default time threshold, cuts off the power supply of audio-frequency signal processing module, each loud speaker and each human body positioning unit.
As the further prioritization scheme of a kind of adaptive audio control method of the present invention, described human body positioning unit adopts infrared inductor.
As the further prioritization scheme of a kind of adaptive audio control method of the present invention, the model of the infrared inductor that described human body positioning unit adopts is SE2470.
As the further prioritization scheme of a kind of adaptive audio control method of the present invention, described human body positioning unit adopts ultrasonic detection device.
As the further prioritization scheme of a kind of adaptive audio control method of the present invention, described human body positioning unit adopts inductance type distance sensing device.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1. can according to whether having audio signal input automatically control the power supply connection of audio-frequency signal processing module, human body locating module and loudspeaker module and cut off, energy-saving and emission-reduction;
2. structure is simple, easy to use;
3. can adjust audio track, to user with good Consumer's Experience according to the difference of user position.
Embodiment
Below technical scheme of the present invention is described in further detail:
The invention discloses a kind of adaptive audio control method, comprise following steps:
Step 1), arranges the audio-frequency signal processing module being used for original audio signal being converted to multi-Channel Acoustic channel audio;
Step 2), arrange and described multi-Channel Acoustic channel audio loud speaker one to one, and on each loud speaker, arrange one for detecting the human body positioning unit of the spacing of loud speaker and user;
Step 3), whether arrange the detection of audio signal detection module at incoming audio signal place have audio signal to input;
Step 4), when audio signal detection module has detected that audio signal inputs, has processed according to the following steps:
Step 4.1), judge whether the power supply of audio-frequency signal processing module, each loud speaker and each human body positioning unit is connected, if do not connected, then connected;
Step 4.2), the audio signal received is passed to audio-frequency signal processing module, is translated into multi-Channel Acoustic channel audio by audio-frequency signal processing module;
Step 4.3), the human body positioning unit controlled on each loud speaker measures the distance between itself and user;
Step 4.4), according to the distance between each loud speaker and user, the multi-Channel Acoustic channel audio after transformed is adjusted;
Step 4.5), the loud speaker that the multi-Channel Acoustic channel audio after adjustment inputs its correspondence is respectively play;
Step 5), when audio signal detection module continues not detect that the time of audio signal is greater than default time threshold, cuts off the power supply of audio-frequency signal processing module, each loud speaker and each human body positioning unit.
As the further prioritization scheme of a kind of adaptive audio control method of the present invention, described human body positioning unit adopts infrared inductor.
As the further prioritization scheme of a kind of adaptive audio control method of the present invention, the model of the infrared inductor that described human body positioning unit adopts is SE2470.
As the further prioritization scheme of a kind of adaptive audio control method of the present invention, described human body positioning unit adopts ultrasonic detection device.
As the further prioritization scheme of a kind of adaptive audio control method of the present invention, described human body positioning unit adopts inductance type distance sensing device.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. an adaptive audio control method, is characterized in that, comprises following steps:
Step 1), arranges the audio-frequency signal processing module being used for original audio signal being converted to multi-Channel Acoustic channel audio;
Step 2), arrange and described multi-Channel Acoustic channel audio loud speaker one to one, and on each loud speaker, arrange one for detecting the human body positioning unit of the spacing of loud speaker and user;
Step 3), whether arrange the detection of audio signal detection module at incoming audio signal place have audio signal to input;
Step 4), when audio signal detection module has detected that audio signal inputs, has processed according to the following steps:
Step 4.1), judge whether the power supply of audio-frequency signal processing module, each loud speaker and each human body positioning unit is connected, if do not connected, then connected;
Step 4.2), the audio signal received is passed to audio-frequency signal processing module, is translated into multi-Channel Acoustic channel audio by audio-frequency signal processing module;
Step 4.3), the human body positioning unit controlled on each loud speaker measures the distance between itself and user;
Step 4.4), according to the distance between each loud speaker and user, the multi-Channel Acoustic channel audio after transformed is adjusted;
Step 4.5), the loud speaker that the multi-Channel Acoustic channel audio after adjustment inputs its correspondence is respectively play;
Step 5), when audio signal detection module continues not detect that the time of audio signal is greater than default time threshold, cuts off the power supply of audio-frequency signal processing module, each loud speaker and each human body positioning unit.
2. adaptive audio control method according to claim 1, is characterized in that, described human body positioning unit adopts infrared inductor.
3. adaptive audio control method according to claim 2, is characterized in that, the model of the infrared inductor that described human body positioning unit adopts is SE2470.
4. adaptive audio control method according to claim 1, is characterized in that, described human body positioning unit adopts ultrasonic detection device.
5. adaptive audio control method according to claim 1, is characterized in that, described human body positioning unit adopts inductance type distance sensing device.
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| CN201410547574.0A CN104333828A (en) | 2014-10-16 | 2014-10-16 | Adaptive audio control method |
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| CN201410547574.0A CN104333828A (en) | 2014-10-16 | 2014-10-16 | Adaptive audio control method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104954939A (en) * | 2015-06-03 | 2015-09-30 | 广东欧珀移动通信有限公司 | Power amplifier of earphone and method for controlling power amplifier of earphone |
| CN105120379A (en) * | 2015-07-30 | 2015-12-02 | 苏州玄禾物联网科技有限公司 | WIFI sound box characterized by automatic power-off based on audio signal detection |
| CN108270984A (en) * | 2018-03-22 | 2018-07-10 | 苏涛 | Image recognition type noise reduction broadcasting control system |
| CN111208518A (en) * | 2018-11-19 | 2020-05-29 | 广达电脑股份有限公司 | Environment detection device and environment detection method using same |
| CN111225319A (en) * | 2018-11-23 | 2020-06-02 | 广达电脑股份有限公司 | Loudspeaker system and loudspeaker control method using same |
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| CN2327140Y (en) * | 1997-10-15 | 1999-06-30 | 北京理工大学技术开发公司 | Active voice-box with automatic power-supply switch |
| CN1622694A (en) * | 2003-11-24 | 2005-06-01 | 三星电子株式会社 | Method and equipment for playing multichannel digital sound |
| US20110069841A1 (en) * | 2009-09-21 | 2011-03-24 | Microsoft Corporation | Volume adjustment based on listener position |
| CN201830222U (en) * | 2010-06-21 | 2011-05-11 | 李曹县 | Intelligent on-off control device of sound box |
| CN102469402A (en) * | 2010-11-09 | 2012-05-23 | 康佳集团股份有限公司 | Audio system |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2327140Y (en) * | 1997-10-15 | 1999-06-30 | 北京理工大学技术开发公司 | Active voice-box with automatic power-supply switch |
| CN1622694A (en) * | 2003-11-24 | 2005-06-01 | 三星电子株式会社 | Method and equipment for playing multichannel digital sound |
| US20110069841A1 (en) * | 2009-09-21 | 2011-03-24 | Microsoft Corporation | Volume adjustment based on listener position |
| CN201830222U (en) * | 2010-06-21 | 2011-05-11 | 李曹县 | Intelligent on-off control device of sound box |
| CN102469402A (en) * | 2010-11-09 | 2012-05-23 | 康佳集团股份有限公司 | Audio system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104954939A (en) * | 2015-06-03 | 2015-09-30 | 广东欧珀移动通信有限公司 | Power amplifier of earphone and method for controlling power amplifier of earphone |
| CN105120379A (en) * | 2015-07-30 | 2015-12-02 | 苏州玄禾物联网科技有限公司 | WIFI sound box characterized by automatic power-off based on audio signal detection |
| CN108270984A (en) * | 2018-03-22 | 2018-07-10 | 苏涛 | Image recognition type noise reduction broadcasting control system |
| CN111208518A (en) * | 2018-11-19 | 2020-05-29 | 广达电脑股份有限公司 | Environment detection device and environment detection method using same |
| CN111208518B (en) * | 2018-11-19 | 2022-04-26 | 广达电脑股份有限公司 | Environment detection device and environment detection method using same |
| CN111225319A (en) * | 2018-11-23 | 2020-06-02 | 广达电脑股份有限公司 | Loudspeaker system and loudspeaker control method using same |
| CN111225319B (en) * | 2018-11-23 | 2022-03-15 | 广达电脑股份有限公司 | Loudspeaker system and loudspeaker control method using same |
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