CN104200826B - Audio signal playing method for mobile terminal and mobile terminal - Google Patents
Audio signal playing method for mobile terminal and mobile terminal Download PDFInfo
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- CN104200826B CN104200826B CN201410413502.7A CN201410413502A CN104200826B CN 104200826 B CN104200826 B CN 104200826B CN 201410413502 A CN201410413502 A CN 201410413502A CN 104200826 B CN104200826 B CN 104200826B
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Abstract
The invention discloses an audio signal playing method for a mobile terminal and the mobile terminal. The audio signal playing method for the mobile terminal includes the steps of obtaining an audio signal; establishing a temporarily stationed audio playing channel if the audio sampling rate of the audio signal is not the audio sampling rate of a default audio channel, wherein the audio sampling rate of the temporarily stationed audio playing channel is identical to the audio sampling rate of the audio signal; playing the audio signal in the temporarily stationed audio playing channel. The audio signal playing method for the mobile terminal and the mobile terminal can effectively improve the playing quality of the audio signal.
Description
Technical field
The present invention relates to media play field, and in particular to a kind of audio signal player method for being applied to mobile terminal and
Mobile terminal.
Background technology
At present in intelligent mobile terminal (such as in the intelligent mobile terminal based on ARIXTRA (i.e. Android) operating system)
When playing music, be all by audio service in a fixed voice-grade channel realize that the voice-grade channel starts in audio service
When just it has been established that the voice-grade channel is using fixed audio sample rate, as there is each audio signal single audio frequency to adopt
Sample rate, therefore in playing audio signal, first have to guarantee that the sample rate of audio signal is the audio sample rate that the passage is used.
Illustrate, it is assumed that the audio sample rate that the voice-grade channel in audio service is adopted for 48kHz, when the audio frequency of the non-48kHz of broadcasting
During signal, needs are converted to the audio sample rate that voice-grade channel is used, i.e. 48kHz the audio sample rate of the audio signal, it
After could be played out by the voice-grade channel.
However, during above-mentioned transducing audio sample rate, the inevitably loss of source of sound so that audio frequency
Play quality declines.
The content of the invention
The present invention provides a kind of audio signal player method and mobile terminal for being applied to mobile terminal, for improving audio frequency
The play quality of signal.
First aspect present invention provides a kind of audio signal player method for being applied to mobile terminal, including：
Obtain audio signal；
If the audio sample rate of audio signal audio sample rate not for default audio passage,：
Temporarily broadcasting in audio frequency passage is set up, wherein, the audio sample rate and the audio frequency of temporarily broadcasting in the audio frequency passage
The audio sample rate of signal is identical；
The audio signal is played by temporarily broadcasting in the audio frequency passage.
Second aspect present invention provides a kind of mobile terminal, including：
Acquiring unit, for obtaining audio signal；
Unit is set up, the audio sample rate of the audio signal for obtaining when the acquiring unit is not default audio passage
Audio sample rate when, set up the temporarily passage of broadcasting in audio frequency, wherein, the audio sample rate of the temporary passage of broadcasting in audio frequency and institute
The audio sample rate for stating audio signal is identical；
Broadcast unit, for playing the audio signal by temporarily broadcasting in the audio frequency passage.
Knowable to above-mentioned technical proposal of the present invention, when the audio sample rate and acquiescence of the audio signal for receiving in the present invention
When the audio sample rate of audio frequency broadcasting passage is inconsistent, foundation is consistent with the audio sample rate of the audio signal temporarily to lead in audio frequency
Road, and the audio signal is temporarily played in voice-grade channel by this, due to the audio sample rate for temporarily staying voice-grade channel set up with should
The audio sample rate of audio signal is consistent, therefore when the audio signal is played, it is not necessary to the audio frequency for changing the audio signal is adopted
Sample rate, such that it is able to avoid the loss of source of sound, improves audio playback quality, realizes the lossless broadcasting of audio signal.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 shows for a kind of audio signal player method one embodiment flow process for being applied to mobile terminal that the present invention is provided
It is intended to；
A kind of another embodiment flow process of the audio signal player method for being applied to mobile terminal that Fig. 2 is provided for the present invention
Schematic diagram；
A kind of mobile terminal one embodiment structural representation that Fig. 3 is provided for the present invention.
Specific embodiment
To enable goal of the invention of the invention, feature, advantage more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described reality
It is only a part of embodiment of the invention to apply example, and not all embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment obtained under the premise of creative work is not made by art personnel, belongs to the model of present invention protection
Enclose.
The embodiment of the present invention provides a kind of audio signal player method for being applied to mobile terminal, including：Obtain audio frequency letter
Number；If the audio sample rate of audio signal audio sample rate not for default audio passage,：Set up temporarily broadcasting in audio frequency
Passage, wherein, the audio sample rate of temporarily broadcasting in the audio frequency passage is identical with the audio sample rate of the audio signal；Pass through
Temporarily broadcasting in the audio frequency passage plays the audio signal.The embodiment of the present invention also provides corresponding mobile terminal.Hereinafter divide
It is not described in detail.
Below to a kind of audio signal player method for being applied to mobile terminal provided in an embodiment of the present invention, figure is referred to
1, the audio signal player method in the embodiment of the present invention includes：
101st, obtain audio signal；
The embodiment of the present invention is applied to the mobile terminal with audio playing function, when playing music on mobile terminals
When, the audio signal of the acquisition for mobile terminal music, specifically, mobile terminal can be by wireless network from music service website
Audio signal is obtained, or, it is also possible to audio signal is obtained in local storage space, is not construed as limiting herein.
If the 102, audio sample rate of above-mentioned audio signal audio sample rate not for default audio passage, set up temporary
The passage of broadcasting in audio frequency；
Wherein, the audio sample rate of above-mentioned temporarily broadcasting in audio frequency passage is identical with the audio sample rate of above-mentioned audio signal.
In the embodiment of the present invention, above-mentioned default audio passage refers to a fixation of the mobile terminal when audio service is provided
Voice-grade channel, the default audio passage when audio service starts just it has been established that and with fixed audio sample rate,
Stayed in audio service forever.
Optionally, after step 101 obtains audio signal, mobile terminal judges the audio sample rate of the audio signal for obtaining
It is whether the audio sample rate of default audio passage, if the audio sample rate of the audio signal for obtaining is not default audio passage
Audio sample rate, then set up the temporarily passage of broadcasting in audio frequency.Further, user can also independently choose whether to enable audio lossless
Play mode (for example can be enabled audio lossless play mode, or be passed through by the enabled instruction of input nondestructive play mode
The out code of input nondestructive play mode is closing audio lossless play mode), it is when audio lossless play mode is enabled, mobile
Terminal when the audio sample rate of the audio signal for judging to obtain is not the audio sample rate of default audio passage, temporarily stay by foundation
Audio frequency plays passage, and when not enabled audio lossless play mode, whether the audio signal for no matter getting is that default audio is led to
During the audio sample rate in road, mobile terminal does not set up the temporary passage of broadcasting in audio frequency, and uses default audio passage to play and obtain
The audio signal for arriving.
Specifically, mobile terminal is according to characteristics such as the stream type of above-mentioned audio signal, sample rate, audio format, port numbers
Temporarily broadcasting in audio frequency passage is set up, temporarily broadcasting in the audio frequency passage accords with (i.e. passage ID) mark by unique gap marker, meanwhile,
Mobile terminal sets up new thread corresponding with temporarily broadcasting in the audio frequency passage, so far completes above-mentioned temporary transient audio frequency and plays building for passage
It is vertical.
103rd, above-mentioned audio signal is played by above-mentioned temporarily broadcasting in audio frequency passage；
Specifically, the passage ID of above-mentioned temporarily broadcasting in audio frequency passage is returned to voice frequency terminal the audio frequency of above-mentioned audio signal
Source, after audio-source obtains the passage ID of temporarily broadcasting in the audio frequency passage, finds according to the passage ID of temporarily broadcasting in the audio frequency passage
Audio service neutralizes the corresponding thread of temporarily broadcasting in audio frequency passage, is responsible for the broadcasting of above-mentioned audio signal by the thread,
Pulse code modulation (PCM, the Pulse Code Modulation) data of audio signal are eventually through the temporary passage of broadcasting in audio frequency
It is sent to driving sounding.
Optionally, after above-mentioned audio signal is played to be terminated, mobile terminal is closed for playing temporarily staying for the audio signal
Audio frequency plays passage and thread corresponding with temporarily broadcasting in the audio frequency passage, to discharge software and hardware resources.
It should be noted that the mobile terminal in the embodiment of the present invention can be smart mobile phone, panel computer, vehicle-mounted end
Hold, or other possess the mobile terminal of audio playing function, the operating system used by above-mentioned mobile terminal is Android system
(i.e. android system) or other operating systems, are not construed as limiting herein.
Knowable to above-mentioned technical proposal of the present invention, when the audio sample rate and acquiescence of the audio signal for receiving in the present invention
When the audio sample rate of audio frequency broadcasting passage is inconsistent, foundation is consistent with the audio sample rate of the audio signal temporarily to lead in audio frequency
Road, and the audio signal is temporarily played in voice-grade channel by this, due to the audio sample rate for temporarily staying voice-grade channel set up with should
The audio sample rate of audio signal is consistent, therefore when the audio signal is played, it is not necessary to the audio frequency for changing the audio signal is adopted
Sample rate, such that it is able to avoid the loss of source of sound, improves audio playback quality, realizes the lossless broadcasting of audio signal.
The audio signal player method in the embodiment of the present invention is described with another embodiment below, refers to Fig. 2,
Audio signal player method in the embodiment of the present invention includes：
201st, obtain audio signal；
The embodiment of the present invention is applied to the mobile terminal with audio playing function, when playing music on mobile terminals
When, the audio signal of the acquisition for mobile terminal music, specifically, mobile terminal can be by wireless network from music service website
Audio signal is obtained, or, it is also possible to audio signal is obtained in local storage space, is not construed as limiting herein.
202nd, judge whether to have enabled audio lossless play mode；
In the embodiment of the present invention, user independently can choose whether to enable audio lossless play mode in the terminal,
Optionally, mobile terminal provides audio lossless play mode and enables/down interface, and user can be by being input into mobile terminal
Lossless play mode enabled instruction enabling audio lossless play mode, or by mobile terminal input nondestructive play mode
Out code is closing audio lossless play mode.Or, mobile terminal can also be carried after step 201 obtains audio signal
Show whether user enables audio lossless play mode, if user select enable audio lossless play mode (such as user input without
Damage play mode enabled instruction), then mobile terminal judges to have enabled audio lossless play mode, if user selects not enabling audio frequency
Lossless play mode (the lossless play mode out code of such as user input), then mobile terminal judge not enabled audio lossless broadcast
Mode playback.
Optionally, key variables can be sent to mobile terminal the audio service in mobile terminal, so as to the audio service
Judge whether to enable audio lossless play mode according to the key variables, illustrate, when the key variables take the first value (example
When being such as 1), expression has currently enabled audio lossless play mode, when the key variables take second value (for example, 0), represents
Current not enabled audio lossless play mode.
When judge enabled audio lossless play mode when, execution step 203, when judge not enabled audio lossless broadcasting mould
During formula, execution step 207.
Whether the audio sample rate for the 203rd, judging above-mentioned audio signal is the audio sample rate of default audio passage；
In the embodiment of the present invention, above-mentioned default audio passage refers to a fixation of the mobile terminal when audio service is provided
Voice-grade channel, the default audio passage when audio service starts just it has been established that and with fixed audio sample rate,
Stayed in audio service forever.
When mobile terminal judges the audio sample rate of above-mentioned audio signal for the audio sample rate of default audio passage, hold
Row step 207, when mobile terminal judges the audio sample rate of above-mentioned audio signal audio sample rate not for default audio passage
When, execution step 204.
204th, set up temporarily broadcasting in audio frequency passage；
Wherein, the audio sample rate of above-mentioned temporarily broadcasting in audio frequency passage is identical with the audio sample rate of above-mentioned audio signal.
Specifically, mobile terminal is according to characteristics such as the stream type of above-mentioned audio signal, sample rate, audio format, port numbers
Temporarily broadcasting in audio frequency passage is set up, temporarily broadcasting in the audio frequency passage accords with (i.e. passage ID) mark by unique gap marker, meanwhile,
Mobile terminal sets up new thread corresponding with temporarily broadcasting in the audio frequency passage, so far completes above-mentioned temporary transient audio frequency and plays building for passage
It is vertical.
205th, above-mentioned audio signal is played by above-mentioned temporarily broadcasting in audio frequency passage；
Specifically, the passage ID of above-mentioned temporarily broadcasting in audio frequency passage is returned to voice frequency terminal the audio frequency of above-mentioned audio signal
Source, after audio-source obtains the passage ID of temporarily broadcasting in the audio frequency passage, finds according to the passage ID of temporarily broadcasting in the audio frequency passage
Audio service neutralizes the corresponding thread of temporarily broadcasting in audio frequency passage, is responsible for the broadcasting of above-mentioned audio signal by the thread,
The PCM data of audio signal is sent to driving sounding eventually through the temporary passage of broadcasting in audio frequency.
206th, after above-mentioned audio signal is played to be terminated, mobile terminal is closed and stays audio frequency for playing the temporary of the audio signal
Passage and thread corresponding with temporarily broadcasting in the audio frequency passage are played, to discharge software and hardware resources.
207th, above-mentioned audio signal is played by above-mentioned default audio passage.
It should be noted that further sentencing after judging to have enabled audio lossless play mode in the embodiment of the present invention
Whether the audio sample rate of the disconnected audio signal for getting is the audio sample rate of default audio passage, when judging what is got
After the audio sample rate of audio signal is not the audio sample rate of default audio passage, corresponding temporarily passage in broadcasting is just set up,
In actual applications, it is also possible to skip step 203, i.e. as long as judging to enable audio lossless play mode, then set up and temporarily stay
Audio frequency plays passage, for playing the audio signal for getting, and does not play passage by default audio and plays the sound for getting
Frequency signal.
It should be noted that the mobile terminal in the embodiment of the present invention can be smart mobile phone, panel computer, vehicle-mounted end
Hold, or other possess the mobile terminal of audio playing function, the operating system used by above-mentioned mobile terminal is Android system
(i.e. android system) or other operating systems, are not construed as limiting herein.
Knowable to above-mentioned technical proposal of the present invention, when the audio sample rate and acquiescence of the audio signal for receiving in the present invention
When the audio sample rate of audio frequency broadcasting passage is inconsistent, foundation is consistent with the audio sample rate of the audio signal temporarily to lead in audio frequency
Road, and the audio signal is temporarily played in voice-grade channel by this, due to the audio sample rate for temporarily staying voice-grade channel set up with should
The audio sample rate of audio signal is consistent, therefore when the audio signal is played, it is not necessary to the audio frequency for changing the audio signal is adopted
Sample rate, such that it is able to avoid the loss of source of sound, improves audio playback quality, realizes the lossless broadcasting of audio signal.
The embodiment of the present invention also provides a kind of mobile terminal, as shown in figure 3, the mobile terminal 300 in the embodiment of the present invention,
Including：
Acquiring unit 301, for obtaining audio signal；
Unit 302 is set up, the audio sample rate of the audio signal for obtaining when acquiring unit 301 is not logical for default audio
During the audio sample rate in road, set up the temporarily passage of broadcastings in audio frequency, wherein, the audio sample rate of the above-mentioned temporary passage of broadcasting in audio frequency and
The audio sample rate of above-mentioned audio signal is identical；
Broadcast unit 303, for playing above-mentioned audio signal by above-mentioned temporarily broadcasting in audio frequency passage.
Optionally, broadcast unit 303 is additionally operable to：When the audio sample rate of the audio signal of the acquisition of acquiring unit 301 is silent
When recognizing the audio sample rate of voice-grade channel, above-mentioned audio signal is played by above-mentioned default audio passage.
Optionally, the mobile terminal in the embodiment of the present invention also includes：Pathway closure unit, in above-mentioned audio signal
After broadcasting terminates, above-mentioned temporarily passage in broadcasting is closed.
Optionally, the mobile terminal in the embodiment of the present invention also includes：Determining unit, for setting up unit 302 in triggering
Before, it is determined that enabling audio lossless play mode；Set up unit 302 and determine that enabling audio lossless plays mould in above-mentioned determining unit
Trigger after formula.
Optionally, above-mentioned determining unit specifically for according to input lossless play mode enabled instruction, it is determined that enabling sound
Frequently lossless play mode.
It should be noted that the mobile terminal in the embodiment of the present invention can be smart mobile phone, panel computer, vehicle-mounted end
Hold, or other possess the mobile terminal of audio playing function, the operating system used by above-mentioned mobile terminal is Android system
(i.e. android system) or other operating systems, are not construed as limiting herein.
It should be noted that the mobile terminal in the embodiment of the present invention can be such as the movement referred in above-mentioned embodiment of the method
Terminal, can be used for realizing the whole technical schemes in said method embodiment, and the function of its each functional module can basis
Method in said method embodiment is implemented, and which implements the associated description that process is can refer in above-described embodiment, this
Place repeats no more.
Knowable to above-mentioned technical proposal of the present invention, when the audio sample rate and acquiescence of the audio signal for receiving in the present invention
When the audio sample rate of audio frequency broadcasting passage is inconsistent, foundation is consistent with the audio sample rate of the audio signal temporarily to lead in audio frequency
Road, and the audio signal is temporarily played in voice-grade channel by this, due to the audio sample rate for temporarily staying voice-grade channel set up with should
The audio sample rate of audio signal is consistent, therefore when the audio signal is played, it is not necessary to the audio frequency for changing the audio signal is adopted
Sample rate, such that it is able to avoid the loss of source of sound, improves audio playback quality, realizes the lossless broadcasting of audio signal.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, which can be passed through
Its mode is realized.For example, device embodiment described above is only schematically, for example division of the unit, only
Only a kind of division of logic function, can have other dividing mode when actually realizing, such as multiple units or component can be tied
Close or be desirably integrated into another system, or some features can be ignored, or do not perform.It is another, it is shown or discussed
Coupling each other or direct-coupling or communication connection can be the INDIRECT COUPLINGs by some interfaces, device or unit or logical
Letter connection, can be electrical, mechanical or other forms.
The unit as separating component explanation can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can local to be located at one, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit both can be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is realized and as independent production marketing or use using in the form of SFU software functional unit
When, can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part for contributing to prior art in other words or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, use so that a computer including some instructions
Equipment (can be personal computer, server, or network equipment etc.) performs the complete of each embodiment methods described of the invention
Portion or part steps.And aforesaid storage medium includes：USB flash disk, portable hard drive, read only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
It should be noted that for aforesaid each method embodiment, for easy description, therefore which is all expressed as a series of
Combination of actions, but those skilled in the art should know, the present invention do not limited by described sequence of movement because
According to the present invention, some steps can adopt other orders or while carry out.Secondly, those skilled in the art should also know
Know, embodiment described in this description belongs to preferred embodiment, and involved action and module might not all be these
It is bright necessary.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion described in detail in certain embodiment
Point, may refer to the associated description of other embodiments.
It is more than to a kind of audio signal player method and mobile terminal for being applied to mobile terminal provided by the present invention
Description, for one of ordinary skill in the art, according to the thought of the embodiment of the present invention, in specific embodiment and apply model
Place and will change, to sum up, this specification content should not be construed as limiting the invention.
Claims (8)
1. a kind of audio signal player method for being applied to mobile terminal, it is characterised in that include：
Obtain audio signal；
If the audio sample rate of audio signal audio sample rate not for default audio passage,：
Temporarily broadcasting in audio frequency passage is set up, wherein, the audio sample rate and the audio signal of temporarily broadcasting in the audio frequency passage
Audio sample rate it is identical；
The audio signal is played by temporarily broadcasting in the audio frequency passage；
It is described set up temporarily passage in broadcasting after, including：
After the audio signal is played and terminated, the temporarily passage in broadcasting and corresponding with the temporary passage of broadcasting in audio frequency is closed
Thread.
2. method according to claim 1, it is characterised in that methods described also includes：
If the audio sample rate of the audio signal is the audio sample rate of the default audio passage, by the acquiescence sound
Frequency passage plays the audio signal.
3. method according to claim 1 and 2, it is characterised in that foundation temporarily broadcasting in the audio frequency passage, is also wrapped before
Include：It is determined that having enabled audio lossless play mode.
4. method according to claim 3, it is characterised in that the determination has enabled audio lossless play mode to be included：
According to the lossless play mode enabled instruction of input, it is determined that enabling audio lossless play mode.
5. a kind of mobile terminal, it is characterised in that include：
Acquiring unit, for obtaining audio signal；
Unit is set up, the audio sample rate of the audio signal for obtaining when the acquiring unit is not the sound of default audio passage
During frequency sampling rate, temporarily broadcasting in audio frequency passage is set up, wherein, the audio sample rate and the sound of temporarily broadcasting in the audio frequency passage
The audio sample rate of frequency signal is identical；
Broadcast unit, for playing the audio signal by temporarily broadcasting in the audio frequency passage；
The mobile terminal also includes：
Pathway closure unit, for after the audio signal is played and terminated, closing the temporarily passage in broadcasting and temporary with described
The corresponding thread of the passage of broadcasting in audio frequency.
6. mobile terminal according to claim 5, it is characterised in that the broadcast unit is additionally operable to：Obtain single when described
When the audio sample rate of the audio signal that unit obtains is the audio sample rate of default audio passage, by the default audio passage
Play the audio signal.
7. the mobile terminal according to claim 5 or 6, it is characterised in that the mobile terminal also includes：Determining unit,
For trigger it is described set up unit before, it is determined that enabling audio lossless play mode；
The unit of setting up is triggered after the determining unit determines and enables audio lossless play mode.
8. mobile terminal according to claim 7, it is characterised in that
The determining unit is specifically for the lossless play mode enabled instruction according to input, it is determined that enabling audio lossless plays mould
Formula.
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| CN201410413502.7A CN104200826B (en) | 2014-08-20 | 2014-08-20 | Audio signal playing method for mobile terminal and mobile terminal |
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| CN201410413502.7A CN104200826B (en) | 2014-08-20 | 2014-08-20 | Audio signal playing method for mobile terminal and mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105847963A (en) * | 2016-03-31 | 2016-08-10 | 乐视控股（北京）有限公司 | Television audio frequency debugging method and device |
| CN109257655A (en) * | 2018-09-29 | 2019-01-22 | 视联动力信息技术股份有限公司 | Audio-frequency processing method and device when a kind of program switches |
| CN113765918B (en) * | 2021-09-07 | 2023-04-18 | 广州飞傲电子科技有限公司 | Audio transmission control method and device and audio transmission control equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632674A (en) * | 2013-12-17 | 2014-03-12 | 珠海市魅族科技有限公司 | Audio signal processing method and device |
| CN103714837A (en) * | 2013-12-18 | 2014-04-09 | 福州瑞芯微电子有限公司 | Electronic device and method for playing audio files |
| CN103841495A (en) * | 2014-03-03 | 2014-06-04 | 联想(北京)有限公司 | Method and device for adjusting voice frequency parameters |
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| JP2002335171A (en) * | 2001-05-10 | 2002-11-22 | Matsushita Electric Ind Co Ltd | Digital signal receiver |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632674A (en) * | 2013-12-17 | 2014-03-12 | 珠海市魅族科技有限公司 | Audio signal processing method and device |
| CN103714837A (en) * | 2013-12-18 | 2014-04-09 | 福州瑞芯微电子有限公司 | Electronic device and method for playing audio files |
| CN103841495A (en) * | 2014-03-03 | 2014-06-04 | 联想(北京)有限公司 | Method and device for adjusting voice frequency parameters |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523841 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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| 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: 20170510 |