CN103974184A - Sound channel switching method and device and multimedia equipment - Google Patents
Sound channel switching method and device and multimedia equipment Download PDFInfo
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- CN103974184A CN103974184A CN201310027174.2A CN201310027174A CN103974184A CN 103974184 A CN103974184 A CN 103974184A CN 201310027174 A CN201310027174 A CN 201310027174A CN 103974184 A CN103974184 A CN 103974184A
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Abstract
The invention discloses a sound channel switching method and device and multimedia equipment, and relates to the technical field of multimedia technology. When the left side direction and the right side direction of the multimedia equipment are changed, the condition that the sound is not matched with an image can be generated. The sound channel switching method specifically comprises the steps that the current direction state information of the multimedia equipment is obtained, whether the state is matched with a microphone of the multimedia equipment or not is judged, and if not, sound channel switching is conducted. According to the technical scheme, the sound channel switching method and device are mainly applied to the sound and video recording process.
Description
Technical field
The present invention relates to multimedia technology field, relate in particular to method, device and multimedia equipment that a kind of sound channel is switched.
Background technology
Multimedia equipment is being realized recording, when recording function, carry out sound channel setting according to current multimedia equipment Mike's position, for example, the sound that the current Mike who keeps left at horizontal level receives is as L channel, the sound that the current Mike that keeps right at horizontal level receives is as R channel etc., when multimedia equipment is overturn user or rotation etc. operates, can make Mike's relative position of its left and right sides change, make L channel Mike receive right side sound, and R channel Mike receives left side sound, if now continue to carry out recording function, can cause sound field entanglement, and then cause sound not mate with image.
Summary of the invention
Method, device and multimedia equipment that embodiments of the invention provide a kind of sound channel to switch, while changing, avoid producing the unmatched situation of sound and image in multimedia equipment left and right sides orientation.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, a kind of method that provides sound channel to switch, comprising:
Obtain the current orientation of multimedia equipment state information;
According to the current orientation of the described multimedia equipment state information of obtaining, judge whether the Mike of described multimedia equipment mates with sound channel;
In the time that the Mike of described multimedia equipment is not mated with sound channel, carry out sound channel switching, with make switch after sound channel and the Mike of described multimedia equipment match.
In the first of first aspect may implementation, described in obtain the current orientation of multimedia equipment state information before, also comprise:
Obtain state information territory, the default orientation of multimedia equipment.
May implementation in conjunction with the first of first aspect, first aspect, in the second of first aspect may implementation, describedly judge that whether the Mike of described multimedia equipment mates with sound channel, comprising:
The state information territory, default orientation of more described multimedia equipment and described current orientation state information;
In the time that state information territory, described default orientation comprises described current orientation state information, determine that the Mike of described multimedia equipment mates with sound channel; In the time that state information territory, described default orientation does not comprise described current orientation state information, determine that the Mike of described multimedia equipment do not mate with sound channel.
In conjunction with the first possibility implementation of first aspect, first aspect, the second possibility implementation of first aspect, in the third possibility implementation of first aspect, carry out sound channel switching and comprise:
Carry out the switching of left and right sides sound channel.
Second aspect, the device that provides a kind of sound channel to switch, comprising:
Acquiring unit, for obtaining the current orientation of multimedia equipment state information;
Judging unit, for the current orientation of the described multimedia equipment state information of obtaining according to described acquiring unit, judges whether the Mike of described multimedia equipment mates with sound channel;
Switch unit, in the time determining that according to described judging unit described multimedia Mike is not mated with sound channel, carries out sound channel switching, so that sound channel and described multimedia Mike after switching are matched.
In the first of second aspect may implementation, described acquiring unit also for described obtain the current orientation of multimedia equipment state information before, obtain state information territory, the default orientation of multimedia equipment.
In conjunction with the first possibility implementation of second aspect, second aspect, in the second possibility implementation of second aspect,
Described judging unit comprises:
Comparison module, the state information territory, default orientation of the multimedia equipment obtaining for more described acquiring unit and described current orientation state information;
Determination module, in the time that state information territory, described default orientation comprises described current orientation state information, determines that the Mike of described multimedia equipment mates with sound channel; In the time that state information territory, described default orientation does not comprise described current orientation state information, determine that the Mike of described multimedia equipment do not mate with sound channel.
In conjunction with the first possibility implementation of second aspect, second aspect, the second possibility implementation of second aspect, in the third possibility implementation of second aspect, described switch unit is specifically in the time determining that according to described judging unit described multimedia Mike is not mated with sound channel, carry out the switching of left and right sides sound channel, so that sound channel and described multimedia Mike after switching are matched.
The third aspect, provides a kind of multimedia equipment, and described multimedia equipment has recording and/or recording function, it is characterized in that, described multimedia equipment comprises, the device that the sound channel in all implementations of described second aspect and second aspect is switched.
Method, device and multimedia equipment that the sound channel that the embodiment of the present invention provides is switched, and Acoustic channel switching device is applied to multimedia equipment, obtains the current orientation of multimedia equipment state information, and judge whether this state mates with the Mike of multimedia equipment, in the time not mating, carry out sound channel switching.Prior art, in recording, video process, in the time that the left and right sides orientation of multimedia equipment changes, still keeps original sound channel to arrange constant, thereby causes sound field entanglement, and then sound is not mated with image.And the technical scheme that the present invention proposes, while changing in multimedia equipment left and right sides orientation, has been avoided sound that sound field entanglement causes and the not match condition of image.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The method flow diagram that Fig. 1 switches for a kind of sound channel that one embodiment of the invention provides;
The method flow diagram that Fig. 2 switches for a kind of sound channel that another embodiment of the present invention provides;
The method flow diagram that Fig. 3 switches for the another kind of sound channel that another embodiment of the present invention provides;
The method flow diagram that Fig. 4 switches for the another kind of sound channel that another embodiment of the present invention provides;
The composition frame chart of a kind of Acoustic channel switching device that Fig. 5 provides for another embodiment of the present invention;
The composition frame chart of the another kind of Acoustic channel switching device that Fig. 6 provides for another embodiment of the present invention;
The composition frame chart of a kind of Acoustic channel switching device that Fig. 7 provides for another embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
A kind of method that one embodiment of the invention provides sound channel to switch, as shown in Figure 1, the method comprises:
101, obtain the current orientation of multimedia equipment state information.
Wherein, the current orientation state information of multimedia equipment, refers to the bearing variation value of current multimedia equipment with respect to its initial condition.Because multimedia equipment is when vertical direction or the translation in the horizontal direction, himself there is not the variation in left and right sides orientation.The orientation of multimedia equipment changes, and its position, with respect to initial condition, deflection has to a certain degree occurred.This orientation state information comprises but is not defined as the parameter that represents multimedia equipment change in location.Preferably, this parameter represents with the number of degrees.
102, according to the current orientation of the described multimedia equipment state information of obtaining, judge whether the Mike of described multimedia equipment mates with sound channel.
What deserves to be explained is, in the time that multimedia equipment starts recording or video recording, the Mike of multimedia equipment and the matching state of sound channel are Default Value state.When user overturns to multimedia equipment or when the operation such as rotation, can make the Mike's of its left and right sides relative position change, but its sound channel can still keep original setting.Due to multimedia equipment bearing variation value within multimedia equipment orientation change very limit value time, thinking that sound channel and Mike are still mates; Otherwise just think that both do not mate.Change in situation in multimedia equipment left and right sides orientation, still need to judge whether the Mike of multimedia equipment mates with sound channel.
In addition, above-mentioned multimedia equipment orientation change very limit value, obtains realizing in the technical program process the experiment through several times, and this limiting value is a critical value.When the current orientation state information that is to say multimedia equipment meets or exceeds this limiting value, carry out recording function if continue, there will be obvious sound field confusion; In the time not reaching this limiting value, can think that the chaotic situation of the sound field occurring, within user's tolerance interval, can not affect user's normal use.
103, in the time that the Mike of described multimedia equipment is not mated with sound channel, carry out sound channel switching, with make switch after sound channel and the Mike of described multimedia equipment match.
Wherein, sound channel is switched the audio-frequency information receiving by each Mike and is again mated with sound channel.For example, multimedia equipment is dual track (left and right acoustic channels) and comprises two Mikes, be respectively Mike 1 and Mike 2, when initial condition, the audio-frequency information that Mike 1 receives is kept at L channel, the audio-frequency information that Mike 2 receives is kept at R channel, after multimedia equipment is reversed or rotates, and when now orientation state information meets or exceeds limiting value, the audio-frequency information just present Mike 1 being received is kept at R channel, the audio-frequency information that Mike 2 is received is kept at L channel, switches thereby complete sound channel.
The method that the sound channel that the embodiment of the present invention provides is switched, obtains the current orientation of multimedia equipment state information, and judges that whether this state mates with the Mike of multimedia equipment, in the time not mating, carries out sound channel switching.Prior art, in recording, video process, in the time that the left and right sides orientation of multimedia equipment changes, still keeps original sound channel to arrange constant, thereby causes sound field entanglement, and then sound is not mated with image.And the technical scheme that the present invention proposes, while changing in multimedia equipment left and right sides orientation, has been avoided sound that sound field entanglement causes and the not match condition of image.
A kind of method that another embodiment of the present invention provides sound channel to switch, as shown in Figure 2, the method comprises:
201, obtain state information territory, the default orientation of multimedia equipment.
Wherein, the state information territory, default orientation of multimedia equipment, this codomain end points can be the multimedia equipment orientation change very limit value of describing in step 102 in a upper embodiment.
In addition, the state information territory, default orientation of the multimedia equipment in this step is set according to actual conditions voluntarily by user.
202, obtain the current orientation of multimedia equipment state information.
Wherein, the current orientation of multimedia equipment state information is identical with the associated description in step 101 in a upper embodiment, is not repeated.
In addition, what deserves to be explained is, the current orientation of multimedia equipment state information can but do not limit by gravity sensor, the gyroscope of this multimedia equipment and obtain.
203, according to the current orientation of the described multimedia equipment state information of obtaining, judge whether the Mike of described multimedia equipment mates with sound channel.
Wherein, judge the concrete methods of realizing whether Mike of multimedia equipment mates with sound channel, as shown in Figure 3, comprise the following steps:
2031, the state information territory, default orientation of more described multimedia equipment and described current orientation state information.In the time that state information territory, described default orientation comprises current orientation state information, perform step 2032; Otherwise execution step 2033.
What deserves to be explained is, comparison in this step, whether the current orientation state information of multimedia equipment is in state information territory, default orientation.
2032, determine that the Mike of described multimedia equipment mates with sound channel.
2033, determine that the Mike of described multimedia equipment do not mate with sound channel.
What deserves to be explained is, be identical to Mike with the match condition of sound channel and the associated description of a upper embodiment step 102 in this step, is not repeated.
204, in the time that the Mike of described multimedia equipment is not mated with sound channel, carry out the switching of left and right sides sound channel.
Wherein, the description that left and right acoustic channels switches, identical with the related content of step 103 in a upper embodiment, be not repeated.
What deserves to be explained is, multimedia equipment sound channel situation comprises dual track, four tones of standard Chinese pronunciation surround channel, 5.1 sound channels etc., for example, dual track is left and right acoustic channels, four tones of standard Chinese pronunciation surround channel is front left, front right, rear left, rear R channel, 5.1 sound channels be left front, right front, front mid-, left around with the right side around.Due in actual conditions, the sound channel switching being positioned on multimedia equipment vertical axis is insignificant, and the embodiment of the present invention incorporates sound channel into left and right sides sound channel into, and left and right sides sound channel is switched.
This step has just been enumerated several sound channel situations of multimedia equipment, and the embodiment of the present invention does not limit this.
For example, when this multimedia equipment is dual track (left and right acoustic channels), to carry out left and right acoustic channels switching, make the sound channel after switching corresponding with the Mike of multimedia equipment.The switch instances of all the other sound channels and dual track are switched similar, switch by the sound channel of correspondence position, and the embodiment of the present invention is no longer illustrated one by one to this.
The method that the sound channel that the embodiment of the present invention provides is switched, obtains the current orientation of multimedia equipment state information, and judges that whether this state mates with the Mike of multimedia equipment, in the time not mating, carries out sound channel switching.Prior art, in recording, video process, in the time that the left and right sides orientation of multimedia equipment changes, still keeps original sound channel to arrange constant, thereby causes sound field entanglement, and then sound is not mated with image.And the technical scheme that the present invention proposes, while changing in multimedia equipment left and right sides orientation, has been avoided sound that sound field entanglement causes and the not match condition of image.
A kind of method that another embodiment of the present invention provides sound channel to switch, the method can be applied in concrete example, the present embodiment describes technical scheme of the present invention taking following application scenarios as concrete example, be that multimedia equipment is dual track, and multimedia equipment is 0-180 ° with respect to the bearing variation value territory of initial condition.Certainly above-mentioned concrete example is a kind of application scenarios of technical solution of the present invention, and the embodiment of the present invention does not limit this.As shown in Figure 4, being directed to above-mentioned concrete scene the method comprises:
301, the state information territory, default orientation that multimedia equipment is set is 0-90 °.
302, the current orientation state information of obtaining multimedia equipment is 130 °, by the evolution of multimedia equipment 130 °.
What deserves to be explained is, according to actual conditions, the current orientation state information of multimedia equipment can be the arbitrary value in 0-180 °.Because the state information territory, default orientation in step 301 is 0-90 °, if current orientation state information, within the scope of 0-90 °, without carrying out follow-up sound channel handover operation, no longer elaborates for this situation embodiment of the present invention.
303, be 130 ° (not obviously being contained in state information territory, default orientation) according to the current orientation of the multimedia equipment state information getting, judge that the Mike of multimedia equipment is not corresponding with sound channel.
304, switch left and right sound channels, proceed to record.
The method that the sound channel that the embodiment of the present invention provides is switched, obtains the current orientation of multimedia equipment state information, and judges that whether this state mates with the Mike of multimedia equipment, in the time not mating, carries out sound channel switching.Prior art, in recording, video process, in the time that the left and right sides orientation of multimedia equipment changes, still keeps original sound channel to arrange constant, thereby causes sound field entanglement, and then sound is not mated with image.And the technical scheme that the present invention proposes, while changing in multimedia equipment left and right sides orientation, has been avoided sound that sound field entanglement causes and the not match condition of image.
The device that another embodiment of the present invention provides a kind of sound channel to switch, as shown in Figure 5, this device comprises: acquiring unit 41, judging unit 42, switch unit 43.
Acquiring unit 41, for obtaining the current orientation of multimedia equipment state information.
Judging unit 42, for the current orientation of the described multimedia equipment state information of obtaining according to described acquiring unit 41, judges whether the Mike of described multimedia equipment mates with sound channel.
Switch unit 43, in the time determining that according to described judging unit 42 described multimedia Mike is not mated with sound channel, carries out sound channel switching, so that sound channel and described multimedia Mike after switching are matched.
Optionally, described acquiring unit 41, also for described obtain the current orientation of multimedia equipment state information before, obtain state information territory, the default orientation of multimedia equipment.
Optionally, as shown in Figure 6, described judging unit 42 comprises: comparison module 421, determination module 422.
Comparison module 421, the state information territory, default orientation of the multimedia equipment obtaining for more described acquiring unit 41 and described current orientation state information.
Determination module 422, in the time that state information territory, described default orientation comprises described current orientation state information, determines that the Mike of described multimedia equipment mates with sound channel; In the time that state information territory, described default orientation does not comprise described current orientation state information, determine that the Mike of described multimedia equipment do not mate with sound channel.
Optionally, described switch unit 43, specifically in the time determining that according to described judging unit 42 described multimedia Mike is not mated with sound channel, carries out the switching of left and right sides sound channel, so that sound channel and described multimedia Mike after switching are matched.
What deserves to be explained is, the device that the sound channel that this enforcement provides is switched, is applied to multimedia equipment.This multimedia equipment has recording and/or recording function, comprises mobile phone, panel computer etc.
Preferably, in conjunction with the application scenarios of this Acoustic channel switching device, multimedia equipment wants to respond to the variation of orientation state of self, and this multimedia equipment can comprise the device that gravity sensor or gyroscope etc. can sensed orientation states.
Device and multimedia equipment that the sound channel that the embodiment of the present invention provides is switched, the application of installation that this sound channel is switched, in multimedia equipment, obtains the current orientation of multimedia equipment state information, and judges whether this state mates with the Mike of multimedia equipment, in the time not mating, carry out sound channel switching.Prior art, in recording, video process, in the time that the left and right sides orientation of multimedia equipment changes, still keeps original sound channel to arrange constant, thereby causes sound field entanglement, and then sound is not mated with image.And the technical scheme that the present invention proposes, while changing in multimedia equipment left and right sides orientation, has been avoided sound that sound field entanglement causes and the not match condition of image.
The device that another embodiment of the present invention provides a kind of sound channel to switch, as shown in Figure 7, this device comprises: processor 01, memory 02.
Processor 01, for obtaining state information territory, the default orientation of multimedia equipment.
Memory 02, for storing state information territory, described default orientation.
Processor 01, for obtaining the current orientation of multimedia equipment state information.
Memory 02, for storing described current orientation state information.
Processor 01, for state information territory, default orientation and the described current orientation state information of more described multimedia equipment.
Memory 02, for storing the state information territory, default orientation of described multimedia equipment and the comparative result of described current orientation state information.
Processor 01, in the time that state information territory, described default orientation comprises current orientation state information, determines that the Mike of described multimedia equipment mates with sound channel; Also in the time that state information territory, described default orientation does not comprise current orientation state information, determine that the Mike of described multimedia equipment do not mate with sound channel.
Processor 01, in the time that the Mike of described multimedia equipment is not mated with sound channel, carries out the switching of left and right sides sound channel.
The device that the sound channel that the embodiment of the present invention provides is switched, obtains the current orientation of multimedia equipment state information, and judges that whether this state mates with the Mike of multimedia equipment, in the time not mating, carries out sound channel switching.Prior art, in recording, video process, in the time that the left and right sides orientation of multimedia equipment changes, still keeps original sound channel to arrange constant, thereby causes sound field entanglement, and then sound is not mated with image.And the technical scheme that the present invention proposes, while changing in multimedia equipment left and right sides orientation, has been avoided sound that sound field entanglement causes and the not match condition of image.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential common hardware by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium can read, as the floppy disk of computer, hard disk or CD etc., comprise that some instructions are in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (9)
1. the method that sound channel is switched, is characterized in that, comprising:
Obtain the current orientation of multimedia equipment state information;
According to the current orientation of the described multimedia equipment state information of obtaining, judge whether the Mike of described multimedia equipment mates with sound channel;
In the time that the Mike of described multimedia equipment is not mated with sound channel, carry out sound channel switching, with make switch after sound channel and the Mike of described multimedia equipment match.
2. the method that sound channel according to claim 1 is switched, is characterized in that, described obtain the current orientation of multimedia equipment state information before, comprising:
Obtain state information territory, the default orientation of multimedia equipment.
3. the method that sound channel according to claim 2 is switched, is characterized in that, describedly judges that whether the Mike of described multimedia equipment mates with sound channel, comprising:
The state information territory, default orientation of more described multimedia equipment and described current orientation state information;
In the time that state information territory, described default orientation comprises described current orientation state information, determine that the Mike of described multimedia equipment mates with sound channel; In the time that state information territory, described default orientation does not comprise described current orientation state information, determine that the Mike of described multimedia equipment do not mate with sound channel.
4. the method that the sound channel described in any one is switched according to claim 1-3, is characterized in that, carries out sound channel and switches and comprise:
Carry out the switching of left and right sides sound channel.
5. the device that sound channel is switched, is characterized in that, comprising:
Acquiring unit, for obtaining the current orientation of multimedia equipment state information;
Judging unit, for the current orientation of the described multimedia equipment state information of obtaining according to described acquiring unit, judges whether the Mike of described multimedia equipment mates with sound channel;
Switch unit, in the time determining that according to described judging unit described multimedia Mike is not mated with sound channel, carries out sound channel switching, so that sound channel and described multimedia Mike after switching are matched.
6. the device that sound channel according to claim 5 is switched, is characterized in that, described acquiring unit also for described obtain the current orientation of multimedia equipment state information before, obtain state information territory, the default orientation of multimedia equipment.
7. the device that sound channel according to claim 6 is switched, is characterized in that, described judging unit comprises:
Comparison module, the state information territory, default orientation of the multimedia equipment obtaining for more described acquiring unit and described current orientation state information;
Determination module, in the time that state information territory, described default orientation comprises described current orientation state information, determines that the Mike of described multimedia equipment mates with sound channel; In the time that state information territory, described default orientation does not comprise described current orientation state information, determine that the Mike of described multimedia equipment do not mate with sound channel.
8. the device switching according to the sound channel described in claim 5-7 any one, it is characterized in that, described switch unit is specifically in the time determining that according to described judging unit described multimedia Mike is not mated with sound channel, carry out the switching of left and right sides sound channel, so that sound channel and described multimedia Mike after switching are matched.
9. a multimedia equipment, described multimedia equipment has recording and/or recording function, it is characterized in that, and described multimedia equipment comprises the device that the sound channel described in as above claim 5-8 is switched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310027174.2A CN103974184A (en) | 2013-01-24 | 2013-01-24 | Sound channel switching method and device and multimedia equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310027174.2A CN103974184A (en) | 2013-01-24 | 2013-01-24 | Sound channel switching method and device and multimedia equipment |
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| CN103974184A true CN103974184A (en) | 2014-08-06 |
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| CN201310027174.2A Pending CN103974184A (en) | 2013-01-24 | 2013-01-24 | Sound channel switching method and device and multimedia equipment |
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| CN106550141A (en) * | 2016-10-27 | 2017-03-29 | 乐视控股（北京）有限公司 | A kind of terminal and terminal audio frequency control method for playing back and device |
| CN109937567A (en) * | 2016-11-10 | 2019-06-25 | 索尼公司 | Image processing apparatus and method and program |
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