CN102821337A - Sound effect switching method and sound system - Google Patents
Sound effect switching method and sound system Download PDFInfo
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- CN102821337A CN102821337A CN2012102989122A CN201210298912A CN102821337A CN 102821337 A CN102821337 A CN 102821337A CN 2012102989122 A CN2012102989122 A CN 2012102989122A CN 201210298912 A CN201210298912 A CN 201210298912A CN 102821337 A CN102821337 A CN 102821337A
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Abstract
The invention discloses a sound effect switching method, which is used for automatically switching the sound effect of a sound system according to the access state of a woofer in the sound system comprising the woofer and comprises the following steps: detecting the access state of a woofer; if the woofer is connected, outputting audio by using a bass sound channel; otherwise, the audio is output using the normal channel. The utility model also discloses a sound system of using above-mentioned method, including microprocessing unit, ordinary loudspeaker and woofer, ordinary loudspeaker is connected to microprocessing unit through ordinary sound channel, the woofer is connected to microprocessing unit through the bass sound channel, microprocessing unit is through detecting whether woofer inserts sound system, whether control is exported low frequency audio signal to the woofer. The method and the system can automatically adjust the output of the sound channel audio according to the access state of the woofer, do not need additional operation of a user, and are very convenient.
Description
Technical field
The present invention relates to panel TV audio handoff technique, particularly relate to a kind of audio changing method and a kind of sound system of the panel TV based on external speaker.
Background technology
Along with the fast development of technology, the thickness of television set is more and more thinner.Though panel TV has brought the visual enjoyment of high definition, the structure that sense of hearing aspect is subject to panel TV can't provide better enjoyment.For this reason, panel TV is the deficiency that remedies aspect tonequality, often needs collocation SOUNDBAR series products.SOUNDBAR is meant the audio amplifier of a plurality of sound channels, power amplifier is incorporated into a strip audio amplifier in the casing.
Similarly traditional external sound equipment audio that can not automatically switch for example when inserting bass horn, needs extra setting make bass horn can normally export audio bass usually.
Summary of the invention
Based on this, be necessary to provide a kind of audio changing method of the audio that can automatically switch.
A kind of audio switched system of the audio that can automatically switch also is provided in addition.
A kind of audio changing method is used for automatically switching according to the access state of bass horn at the sound system that comprises bass horn the audio of sound system, comprises the steps: to detect the access state of bass horn; If bass horn inserts, then use the subwoofer channel output audio; Otherwise use common sound channel output audio.
Among embodiment, said bass horn inserts sound system with wired mode therein, and in the step of the access state of said detection bass horn, the idle pin of the microprocessing unit of said sound system is used to detect the access state of said bass horn.
Among embodiment, said bass horn inserts sound system with wireless mode therein, in the step of the access state of said detection bass horn, detects bass horn and sound system and whether sets up wireless connections.
Among embodiment, the said step of subwoofer channel output audio of using is specially therein: judge whether current output is subwoofer channel output, if then keep the state with subwoofer channel output; Otherwise execution following steps: current power amplifier is quiet; After the configuration of initialization audio, with the subwoofer channel output audio; The releasing power amplifier is quiet.
Among embodiment, the step of the common sound channel output audio of said use is specially therein: judge whether current output is common sound channel output, if then keep the state with common sound channel output; Otherwise execution following steps: current power amplifier is quiet; After the configuration of initialization audio, with common sound channel output audio; The releasing power amplifier is quiet.
Among embodiment, said subwoofer channel is 2.1 sound channels therein, and said common sound channel is 2.0 sound channels.
A kind of sound system; Comprise microprocessing unit, common loudspeaker and bass horn; Said common loudspeaker are connected to microprocessing unit through common sound channel; Said bass horn is connected to microprocessing unit through subwoofer channel, and whether said microprocessing unit inserts sound system through detecting bass horn, whether controls output low frequency audio signal to said bass horn.
Among embodiment, said bass horn inserts sound system through wired mode therein, and said microprocessing unit utilizes the access state of the said bass horn of idle pin senses.
Among embodiment, said bass horn inserts sound system through wireless mode therein, and whether said microprocessing unit sets up the access state that the mode of wireless connections detects said bass horn through detecting bass horn and sound system.
Among embodiment, said subwoofer channel is 2.1 sound channels therein, and said common sound channel is 2.0 sound channels.
Said method and system can detect the access state of bass horn; When bass horn inserts, use the subwoofer channel output audio, otherwise use common sound channel input audio frequency, promptly can adjust the output of channel audio automatically; Do not need user's operation bidirectional, very convenient.
Description of drawings
Fig. 1 is the audio changing method flow chart of one embodiment of the invention;
Fig. 2 is the audio signal transmission sketch map in a kind of general sound system;
Fig. 3 is for detecting the circuit structure sketch whether bass horn inserts;
Fig. 4 is the particular flow sheet of step S102 in the flow process of Fig. 1;
Fig. 5 is the particular flow sheet of step S103 in the flow process of Fig. 1;
Fig. 6 is the audio signal transmission sketch map in the sound system of one embodiment of the invention.
Embodiment
As shown in Figure 1, be the audio changing method of an embodiment.This method is used for switching according to the access state of bass horn automatically at the sound system that comprises bass horn the audio of sound system.
As shown in Figure 2, the audio signal transmission sketch map in a kind of general sound system.Wherein L is that left channel audio signal, R are that right channel audio signal, C are that center channel audio signal, LS are that left surround audio signal, RS are that right surround audio signal and LFE are low-frequency audio signal.Left channel audio signal is directly exported to the left horn of correspondence; Right channel audio signal can be delivered to left horn and right horn directly to the right horn output of correspondence respectively after center channel audio signal, left surround audio signal, right surround audio signal and low-frequency audio signal are synthetic.
In the sound system that has bass horn (subwoofer), the audio signal that comprises above-mentioned all audio frequency components can also be sent to bass horn in addition.
Method embodiment illustrated in fig. 1 comprises the steps:
S101: the access state that detects bass horn.If bass horn inserts, execution in step S102 then, otherwise execution in step S103.The access state of bass horn representes whether bass horn inserts sound system, and bass horn just can received audio signal and broadcast after inserting sound system.Bass horn can insert sound system with wired or wireless mode.
When connecting, normally the audio frequency pin of bass horn is inserted the COBBAIF of sound system with wired mode.Can utilize this moment the idle pin of the microprocessing unit of sound system to detect the access state of bass horn.As shown in Figure 3, be the circuit structure sketch that detects.An idle pin of microprocessing unit (MCU) is connected to the voltage source (3.3V) that can represent high level through a pull-up resistor R, and through inserting sense switch S ground connection.When bass horn did not insert, microprocessing unit detected high level all the time all the time on this free time pin.When bass horn inserts, microprocessing unit will detect low level on this free time pin.Can learn the access state of bass horn through the high-low level that detects idle pin.
When connecting with wireless mode, the control system of sound equipment and bass horn all have wireless communication module, and the wireless connections of sound system and bass horn are based on a side connection request wherein, connect that both sides can both learn when setting up.
S102: use the subwoofer channel output audio.After bass horn inserts the sound equipment control system, then adopt the subwoofer channel output audio automatically.With reference to figure 2, promptly be to be input to bass horn after synthesizing the audio signal of all the components.
Particularly, as shown in Figure 4, step S102 comprises:
S121: judge that whether current output be subwoofer channel output, if, execution in step S122 then, otherwise execution in step S123.
S122: keep state with subwoofer channel output.If be the state of subwoofer channel output, then need not switch.
S123: current power amplifier is quiet.
S124: after the configuration of initialization audio, with the subwoofer channel output audio.
S125: it is quiet to remove power amplifier.The effect of step S123 and step S125 is to prevent in handoff procedure, to occur noise.
Above-mentioned steps S102 is the processing branch when bass horn does not insert, and it is step S103 that relative another handled branch.
S103: use common sound channel output audio.
Particularly, as shown in Figure 5, step S103 comprises:
S131: judge that whether current output be common sound channel output, if, execution in step S132 then, otherwise execution in step S133.
S132: keep state with common sound channel output.If be the state of common sound channel output, then need not switch.
S133: current power amplifier is quiet.
S134: after the configuration of initialization audio, with common sound channel output audio.
S135: it is quiet to remove power amplifier.The effect of step S133 and step S135 is to prevent in handoff procedure, to occur noise.
Above-mentioned subwoofer channel is 2.1 sound channels, and said common sound channel is 2.0 sound channels.The audio signal sound channel type of input can be 2.0 sound channels or 5.1 sound channels.
As shown in Figure 6, be the audio signal transmission sketch map in the sound system of an embodiment.This sound system 10 comprises microprocessing unit 100, common loudspeaker 200 and bass horn 300.Common loudspeaker 200 are connected to microprocessing unit 100 through common sound channel, and bass horn 300 is connected to microprocessing unit 100 through subwoofer channel.Microprocessing unit 100 can be through adding control signal to corresponding sound channel, make from the audio signal of each sound channel by by or pass through, thereby control common loudspeaker 200 and bass horn 300 sounding or sounding not.
Bass horn 300 can insert sound system with wired or wireless mode.The access detection method of various access waies is not given unnecessary details at this as previously mentioned.
In the present embodiment, said common sound channel is 2.0 sound channels, and subwoofer channel is 2.1 sound channels.The sound system of present embodiment is 2.1 sound channel products of soundbar class.
The sound system of above-mentioned audio changing method and this method of application can be adjusted the output of channel audio automatically according to the access state of bass horn, do not need user's operation bidirectional, and is very convenient.
The above embodiment has only expressed several kinds of execution modes of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with accompanying claims.
Claims (10)
1. audio changing method is used for switching according to the access state of bass horn automatically at the sound system that comprises bass horn the audio of sound system, comprises the steps:
Detect the access state of bass horn;
If bass horn inserts, then use the subwoofer channel output audio; Otherwise use common sound channel output audio.
2. audio changing method according to claim 1; It is characterized in that; Said bass horn inserts sound system with wired mode; In the step of the access state of said detection bass horn, the idle pin of the microprocessing unit of said sound system is used to detect the access state of said bass horn.
3. audio changing method according to claim 1 is characterized in that said bass horn inserts sound system with wireless mode, in the step of the access state of said detection bass horn, detects bass horn and sound system and whether sets up wireless connections.
4. audio changing method according to claim 1 is characterized in that, the step of said use subwoofer channel output audio is specially:
Judge whether current output is subwoofer channel output, if then keep state with subwoofer channel output; Otherwise execution following steps:
Current power amplifier is quiet;
After the configuration of initialization audio, with the subwoofer channel output audio;
The releasing power amplifier is quiet.
5. audio changing method according to claim 1 is characterized in that, the step of the common sound channel output audio of said use is specially:
Judge whether current output is common sound channel output, if then keep state with common sound channel output; Otherwise execution following steps:
Current power amplifier is quiet;
After the configuration of initialization audio, with common sound channel output audio;
The releasing power amplifier is quiet.
6. audio changing method according to claim 1 is characterized in that, said subwoofer channel is 2.1 sound channels, and said common sound channel is 2.0 sound channels.
7. sound system; Comprise microprocessing unit, common loudspeaker and bass horn; Said common loudspeaker are connected to microprocessing unit through common sound channel; Said bass horn is connected to microprocessing unit through subwoofer channel, and whether said microprocessing unit inserts sound system through detecting bass horn, whether controls output low frequency audio signal to said bass horn.
8. sound system according to claim 7 is characterized in that said bass horn inserts sound system through wired mode, and said microprocessing unit utilizes the access state of the said bass horn of idle pin senses.
9. sound system according to claim 7; It is characterized in that; Said bass horn inserts sound system through wireless mode, and whether said microprocessing unit sets up the access state that the mode of wireless connections detects said bass horn through detecting bass horn and sound system.
10. sound system according to claim 7 is characterized in that, said subwoofer channel is 2.1 sound channels, and said common sound channel is 2.0 sound channels.
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| CN201210298912.2A CN102821337B (en) | 2012-08-20 | 2012-08-20 | Sound effect switching method and sound system |
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| CN201210298912.2A CN102821337B (en) | 2012-08-20 | 2012-08-20 | Sound effect switching method and sound system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103139682A (en) * | 2012-12-28 | 2013-06-05 | 深圳Tcl新技术有限公司 | Sound effect shift device and system |
| CN104934048A (en) * | 2015-06-24 | 2015-09-23 | 小米科技有限责任公司 | Sound effect regulation method and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2367042Y (en) * | 1999-01-20 | 2000-03-01 | 海信集团公司 | Automatic changing-over switch for loudspeaker |
| CN201393292Y (en) * | 2009-03-27 | 2010-01-27 | 东莞市宇佳电子实业有限公司 | Low-frequency enhancing headphone |
| CN102045622A (en) * | 2009-10-16 | 2011-05-04 | 深圳Tcl新技术有限公司 | Method and device for switching built-in and external loud speakers |
-
2012
- 2012-08-20 CN CN201210298912.2A patent/CN102821337B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2367042Y (en) * | 1999-01-20 | 2000-03-01 | 海信集团公司 | Automatic changing-over switch for loudspeaker |
| CN201393292Y (en) * | 2009-03-27 | 2010-01-27 | 东莞市宇佳电子实业有限公司 | Low-frequency enhancing headphone |
| CN102045622A (en) * | 2009-10-16 | 2011-05-04 | 深圳Tcl新技术有限公司 | Method and device for switching built-in and external loud speakers |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103139682A (en) * | 2012-12-28 | 2013-06-05 | 深圳Tcl新技术有限公司 | Sound effect shift device and system |
| CN103139682B (en) * | 2012-12-28 | 2016-07-06 | 深圳Tcl新技术有限公司 | A kind of sound effect shift device and system |
| CN104934048A (en) * | 2015-06-24 | 2015-09-23 | 小米科技有限责任公司 | Sound effect regulation method and device |
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| Publication number | Publication date |
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| CN102821337B (en) | 2015-10-28 |
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Address after: 516006 community 37, Zhongkai high tech Zone, Huizhou, Guangdong Patentee after: Tongli Technology Co.,Ltd. Address before: 516006 Guangdong province Huizhou Zhongkai hi tech Development Zone No. 19 district Patentee before: TONLY ELECTRONICS HOLDINGS Ltd. |