CN102543096A

CN102543096A - Method and device for suppressing scene noise during media file playing

Info

Publication number: CN102543096A
Application number: CN201110443153XA
Authority: CN
Inventors: 汪奕菲; 王文杰
Original assignee: Shanghai Synacast Media Technology Co Ltd
Current assignee: Shanghai Synacast Media Technology Co Ltd
Priority date: 2011-12-26
Filing date: 2011-12-26
Publication date: 2012-07-04
Anticipated expiration: 2031-12-26
Also published as: CN102543096B

Abstract

The invention provides a method and a device for suppressing scene noise during media file playing. The device for suppressing scene noise acquires scene noise related information of a current scene of user equipment playing the media file; scene noise suppression information corresponding to the scene noise related information is acquired according to the scene noise related information; the scene noise suppression information and audio information of the media file are synthesized to acquire synthesized audio information so as to acquire synthesized audio information for playing; and the synthesized audio information is played. The corresponding scene noise suppression information is acquired according to the scene noise related information of the scene of the user equipment, the scene noise suppression information and the audio information of the current media file played by the user equipment are synthesized to acquire the synthesized audio information, and the synthesized audio information for playing is finally acquired.

Description

The method and apparatus that playback of media files process scene noise is suppressed

Technical field

The present invention relates to the media play technical field, relate in particular to a kind of technology that playback of media files process scene noise is suppressed of being used for.

Background technology

In the prior art, when subscriber equipment is in the noisy noise scenarios of environment, and when carrying out media play, often heighten volume, make the user in this noise scenarios, can catch the media file of current broadcast through the mode of manual work.

Therefore, how a kind of technology that playback of media files process scene noise is suppressed of being used for is provided, makes subscriber equipment when the noise scenarios playing media file, the user obtains to play preferably to experience, and becomes one of present urgent problem.

Summary of the invention

The purpose of this invention is to provide a kind of method and apparatus that playback of media files process scene noise is suppressed of being used for.

According to an aspect of the present invention, provide a kind of and be used for method that playback of media files process scene noise is suppressed at the subscriber equipment end, wherein, this method may further comprise the steps:

A obtains the scene noise relevant information of the subscriber equipment scene of living in of current playing media file;

B obtains and the corresponding scene squelch of said scene noise relevant information information according to said scene noise relevant information;

C synthesizes processing through the audio-frequency information with said scene squelch information and said media file, and the audio-frequency information after obtaining to synthesize is with the Composite tone information that obtains to be used to play;

D plays said Composite tone information.

According to another aspect of the present invention, a kind of method that playback of media files process scene noise is suppressed at network equipment end assisting user equipment is provided also, wherein, this method may further comprise the steps:

A is received from the request of obtaining about scene squelch information that subscriber equipment sends, and the said request of obtaining comprises the scene noise relevant information of said subscriber equipment scene of living in;

C is sent to said subscriber equipment with said scene squelch information.

According to an aspect of the present invention, a kind of device of playback of media files process scene noise being suppressed at subscriber equipment of being used for is provided, wherein, this device comprises:

Noise relevant information deriving means is used to obtain the scene noise relevant information of the subscriber equipment scene of living in of current playing media file;

The squelch information acquisition device is used for according to said scene noise relevant information, obtains and the corresponding scene squelch of said scene noise relevant information information;

The audio-frequency information synthesizer is used for synthesizing processing through the audio-frequency information with said scene squelch information and said media file, and the audio-frequency information after obtaining to synthesize is with the Composite tone information that obtains to be used to play;

The composite signal playing device is used to play said Composite tone information.

According to another aspect of the present invention, a kind of network equipment that assisting user equipment suppresses playback of media files process scene noise that is used for is provided also, wherein, this network equipment comprises:

Noise relevant information receiving trap is used to be received from the scene noise relevant information of the said subscriber equipment scene of living in that subscriber equipment sends;

Squelch information is confirmed device, is used for according to said scene noise relevant information, obtains and the corresponding scene squelch of said scene noise relevant information information;

The squelch information transmitting apparatus is used for said scene squelch information is sent to said subscriber equipment.

According to a further aspect of the invention; A kind of system that playback of media files process scene noise is suppressed of being used for also is provided; Wherein, this system comprise as aforementioned according to an aspect of the present invention the device that is used for playback of media files process scene noise being suppressed at subscriber equipment and as aforementioned according to another aspect of the present invention be used for the network equipment that assisting user equipment suppresses playback of media files process scene noise.

Compared with prior art; The present invention is according to the scene noise relevant information of subscriber equipment scene of living in; Such as scene noise sample information or scene noise pattern information etc., obtain corresponding scene squelch information, and then the audio-frequency information of the media file of this scene squelch information and the current broadcast of this subscriber equipment is synthesized processing; Obtain the audio-frequency information after synthetic, and the final Composite tone information that is used to play of obtaining; The invention enables the subscriber equipment that is in noise scenarios need not to possess under the situation of higher computing power; Scene noise relevant information according to this scene can obtain corresponding scene squelch information; And then the noise of this scene suppressed to handle, thereby make the user under noise scenarios, obtain to play preferably to experience during via this played media file.

Description of drawings

Through reading the detailed description of doing with reference to following accompanying drawing that non-limiting example is done, it is more obvious that other features, objects and advantages of the present invention will become:

Fig. 1 illustrates the device synoptic diagram according to the device that is used at subscriber equipment playback of media files process scene noise being suppressed of one aspect of the invention;

Fig. 2 illustrates being used for the device that playback of media files process scene noise is suppressed at subscriber equipment and being used for the device synoptic diagram of the network equipment that assisting user equipment suppresses playback of media files process scene noise in accordance with a preferred embodiment of the present invention;

Fig. 3 illustrates the method flow diagram that playback of media files process scene noise suppressed at subscriber equipment of being used for according to a further aspect of the present invention;

Fig. 4 illustrates in accordance with a preferred embodiment of the present invention subscriber equipment and the network equipment and cooperates the method flow diagram of realizing that playback of media files process scene noise is suppressed.

Same or analogous Reference numeral is represented same or analogous parts in the accompanying drawing.

Embodiment

Below in conjunction with accompanying drawing the present invention is described in further detail.

Fig. 1 is the device synoptic diagram according to one aspect of the invention, and a kind of Noise Suppression Device of playback of media files process scene noise being suppressed at subscriber equipment of being used for is shown.At this, but this Noise Suppression Device installation and operation is in the operating system of subscriber equipment, subscriber equipment or the media player of subscriber equipment.At this; Subscriber equipment includes but not limited to anyly can carry out mutual electronic product with the user through mouse, keyboard, touch-screen etc. applicable to of the present invention, such as personal computer, notebook computer, panel computer, mobile phone, PDA, palm PC (PPC), game machine (PSP) etc.Those skilled in the art will be understood that above-mentioned subscriber equipment is merely for example, and other subscriber equipmenies existing or that possibly occur from now on also should be included in the protection domain of the present invention, and be contained in this with way of reference as applicable to the present invention.

As shown in Figure 1, Noise Suppression Device 1 comprises noise relevant information deriving means 111, squelch information acquisition device 112, audio-frequency information synthesizer 113 and composite signal playing device 114.Particularly, noise relevant information deriving means 111 obtains the scene noise relevant information of the subscriber equipment scene of living in of current playing media file; Squelch information acquisition device 112 obtains and the corresponding scene squelch of said scene noise relevant information information according to said scene noise relevant information; Audio-frequency information synthesizer 113 synthesizes processing through the audio-frequency information with said scene squelch information and said media file, and the audio-frequency information after obtaining to synthesize is with the Composite tone information that obtains to be used to play; Composite signal playing device 114 is play said Composite tone information.

Noise relevant information deriving means 111 obtains the scene noise relevant information of the subscriber equipment scene of living in of current playing media file.At this, noise relevant information deriving means 111 obtains said scene noise relevant information, such as scene noise pattern information, scene noise sample information etc. through various by software or hard-wired noise sampling instrument.

Wherein, noise relevant information deriving means 111 mode of obtaining said scene noise relevant information includes but not limited to following mode:

1),, gathers the scene noise sample information that obtains subscriber equipment scene of living in like microphone through being installed on or being connected in the noise sampling instrument of subscriber equipment;

2), confirm the scene noise pattern information of subscriber equipment scene of living in, like simple scene mode, such as ground rail mode, bar pattern etc. according to the scene mode of user preset;

3) according to the scene noise sample information of subscriber equipment scene of living in; The noise pattern sample storehouse that inquiry is preset; To confirm and the corresponding scene noise pattern of said scene noise sample information information that at this, said scene noise pattern information can comprise simple scene mode; Like ground rail mode, bar pattern etc., also can comprise scene noise pattern signal.

For example; Noise relevant information deriving means 111 obtains the scene noise sample signal of current scene of living in through the microphone collection of subscriber equipment; And according to this preset noise pattern sample storehouse of scene noise sample signal inquiry; Store the noise sample signal of several scenes pattern in this noise pattern sample storehouse; This scene noise sample signal and these noise sample signals are complementary, and to obtain the highest coupling noise sample signal of similarity, the pairing scene mode of this coupling noise sample signal is the scene noise pattern information of this subscriber equipment scene of living in.

And for example; Noise relevant information deriving means 111 obtains the scene noise sample signal of current scene of living in through the microphone collection of subscriber equipment; And according to this preset noise pattern sample storehouse of scene noise sample signal inquiry; Store several scenes noise pattern signal in this noise pattern sample storehouse; This scene noise sample signal and these scene noise pattern signals are complementary, to obtain the highest coupling scene noise pattern signal of similarity, with the scene noise pattern information of this coupling scene noise pattern signal as this subscriber equipment scene of living in.

Preferably, said scene noise relevant information includes but not limited to, below at least each:

1) the scene noise pattern information of subscriber equipment scene of living in;

2) the scene noise sample information of subscriber equipment scene of living in.

Particularly, 1) the scene noise pattern information of subscriber equipment scene of living in includes but not limited to simple scene mode, such as ground rail mode, bar pattern etc., and scene noise pattern signal etc.Wherein, said scene mode can be by user preset, or based on the scene noise sample signal of current scene, obtains through inquiry noise pattern sample storehouse; Scene noise pattern signal can be directly obtains based on the scene noise sample signal of current scene, or based on the scene noise sample signal of current scene, obtains through inquiry noise pattern sample storehouse.

2) the scene noise sample information of subscriber equipment scene of living in includes but not limited to according to any applicable to sampling of the present invention rule, the scene noise sample signal that the noise samples of the current scene of living in of this subscriber equipment is obtained.

Those skilled in the art will be understood that above-mentioned scene noise relevant information and obtain manner thereof are merely for example; Other scene noise relevant informations existing or that possibly occur from now on or its obtain manner are as applicable to the present invention; Also should be included in the protection domain of the present invention, and be contained in this with way of reference.

Squelch information acquisition device 112 obtains and the corresponding scene squelch of said scene noise relevant information information according to said scene noise relevant information.At this, the mode that squelch information acquisition device 112 obtains said scene squelch information includes but not limited to following mode:

1) according to said scene noise relevant information, generate corresponding inversion signal, this inversion signal is said scene squelch information.For example, the scene noise sample signal according to the current scene of living in of subscriber equipment generates corresponding inversion signal, thereby obtains and the corresponding scene squelch of this scene noise sample signal signal.

2) according to said scene noise relevant information, in the squelch information bank, inquire about, to obtain said scene squelch information.For example, according to the scene noise pattern information of the current scene of living in of subscriber equipment, inquiry squelch information bank is to obtain corresponding scene squelch information; At this; Store in the said squelch information bank and the corresponding scene squelch of various scene noise pattern information information; Include but not limited to; With the corresponding scene squelch of various simple scene modes signal, perhaps, with the corresponding scene squelch of various scene noise pattern signals signal.Preferably, said squelch information bank can integrate with aforementioned noise pattern sample storehouse.

Those skilled in the art will be understood that above-mentioned scene squelch information and obtain manner thereof are merely for example; Other scene squelch information existing or that possibly occur from now on or its obtain manner are as applicable to the present invention; Also should be included in the protection domain of the present invention, and be contained in this with way of reference.

In addition, said squelch information bank comprises that the local squelch information bank of subscriber equipment and/or the addressable network noise of this subscriber equipment suppress information bank; Wherein, said local squelch information bank can be taked to suppress the identical mode of information bank with said network noise and set up and upgrade, and concrete mode will and be upgraded the related content that said network noise suppresses information bank in follow-up foundation and partly be elaborated.

Need to prove that in a preferred exemplary of said squelch information bank, said squelch information bank can comprise that the squelch information bank of subscriber equipment and the addressable network noise of this subscriber equipment suppress information bank; Wherein, Store in the said local squelch information bank such as the scene noise pattern information of the frequent use of this subscriber equipment and corresponding scene squelch information thereof etc.; Said network noise suppresses to store in the information bank a large amount of scene noise pattern information and corresponding scene squelch information thereof; And said network noise suppresses information bank periodically or when update event takes place; Send new scene noise pattern information and corresponding scene squelch information thereof to said local squelch information bank, to upgrade said local squelch information bank.

Audio-frequency information synthesizer 113 synthesizes processing through the audio-frequency information with said scene squelch information and said media file, and the audio-frequency information after obtaining to synthesize is with the Composite tone information that obtains to be used to play; Composite signal playing device 114 is play said Composite tone information.At this; Audio-frequency information synthesizer 113 can be directly with said audio-frequency information after synthetic as the Composite tone information that is used to play; After also can doing further processing, with handling the back audio-frequency information that obtains as the Composite tone information that is used to play to the audio-frequency information after said synthesizing.For example, audio-frequency information synthesizer 113 is superimposed with the sound signal of the media file of the scene squelch signal of subscriber equipment scene of living in and current broadcast, and the sound signal that the stack back is obtained is as the synthetic audio signal that is used to play; Subsequently, composite signal playing device 114 is play this synthetic audio signal.

Those skilled in the art will be understood that the mode of the Composite tone information that above-mentioned acquisition is used to play is merely for example; The mode of the Composite tone information that other acquisitions existing or that possibly occur from now on are used to play is as applicable to the present invention; Also should be included in the protection domain of the present invention, and be contained in this with way of reference.

The present invention is according to the scene noise relevant information of subscriber equipment scene of living in; Such as scene noise sample information or scene noise pattern information etc.; Obtain corresponding scene squelch information; And then the audio-frequency information of the media file of this scene squelch information and the current broadcast of this subscriber equipment synthesized processing, obtain the audio-frequency information after synthetic, and the final Composite tone information that is used to play of obtaining; The invention enables the subscriber equipment that is in noise scenarios need not to possess under the situation of higher computing power; Scene noise relevant information according to this scene can obtain corresponding scene squelch information; And then the noise of this scene suppressed to handle, thereby make the user under noise scenarios, obtain to play preferably to experience during via this played media file.

In the preferred exemplary of this embodiment; Squelch information acquisition device 112 is according to said scene noise pattern information; And said scene noise sample information, in said squelch information bank, inquire about, to obtain corresponding scene squelch information.For example, store several scenes noise pattern information in the said squelch information bank, and with the corresponding a plurality of scene squelch information of each scene noise pattern information; Squelch information acquisition device 112 is according to the scene noise pattern information of subscriber equipment scene of living in; In said squelch information bank, inquire about; To obtain corresponding a plurality of scene squelch information; And combine the scene noise sample information of this subscriber equipment scene of living in, from scene squelch information of mating most of these a plurality of scene squelch information selected, as final scene squelch information with this scene noise sample information.

At this; Because in the squelch information bank; For a scene noise pattern information; Store the scene squelch information of a plurality of correspondences, these a plurality of scene squelch information are carried out the anti-phase coupling, can go out the scene squelch information of suitable this scene from a plurality of and the corresponding scene squelch of scene noise pattern information information selected this scene like the scene noise sample information that combines subscriber equipment scene of living in; Thereby obtain better scene noise suppression effect, the media play that has further promoted the user is experienced.

In another preferred exemplary of this embodiment, noise relevant information deriving means 111 obtains the scene noise relevant information of subscriber equipment scene of living in when satisfying predetermined squelch condition.At this; Predetermined squelch condition includes but not limited to; Any applicable to the condition that is used to judge whether subscriber equipment is carried out the scene squelch of the present invention, the current noise frequency fluctuation that does not connect in earphone, the predetermined time interval is to surpass predetermined threshold etc. such as subscriber equipment.Those skilled in the art will be understood that above-mentioned squelch condition is merely for example, and other squelch conditions existing or that possibly occur from now on also should be included in the protection domain of the present invention, and be contained in this with way of reference as applicable to the present invention.

For example, predetermined squelch condition comprises that the current audio output device of subscriber equipment is a loudspeaker, and when satisfying this predetermined squelch condition, noise relevant information deriving means 111 obtains the scene noise relevant information of this subscriber equipment scene of living in; Subsequently, other devices of Noise Suppression Device 1 are carried out its respective operations in succession, to obtain and to play the synthetic information, volume of the media file of the current broadcast of this subscriber equipment.

At this; Handle to whether carrying out squelch that to carry out anticipation disconnected, only when satisfying predetermined squelch condition, just the noise to subscriber equipment scene of living in suppresses to handle; Thereby avoided the maloperation when need not to carry out squelch, guaranteed that further user's media play is experienced.

In another preferred exemplary of this embodiment, Noise Suppression Device 1 also comprises noise volume weighting device (not shown).Noise volume weighting device obtains the noise information, volume of subscriber equipment scene of living in; According to said noise information, volume; And combination and the corresponding noise weight of said noise information, volume, confirm and the corresponding noise weighting information, volume of said noise information, volume; Audio-frequency information synthesizer 113 synthesizes processing through the audio-frequency information with said scene squelch information and said media file; Audio-frequency information after obtaining to synthesize; According to said noise weighting information, volume; Audio-frequency information after said synthesizing is carried out volume regulate, with the Composite tone information that obtains to be used to play.

For example, the noise information, volume is set corresponding noise weight, as interval according to the volume under the different noise information, volume; Set a noise weight for each volume is interval, the interval pairing noise volume value of volume is big more, and corresponding noise weight is also big more; Noise weight like volume interval [90,100] is 0.4, volume interval [100; 110] noise weight is 0.5, and the rest may be inferred; Noise volume weighting device is confirmed the interval and corresponding noise weight of the affiliated volume of this noise volume value according to the noise volume value of subscriber equipment scene of living in, thereby confirms the noise weighting volume value of this noise volume value; Audio-frequency information synthesizer 113 is through synthesizing processing with the sound signal of the media file of the scene squelch signal of this subscriber equipment scene of living in and the current broadcast of this subscriber equipment; Sound signal after obtaining to synthesize; And according to this noise weighting volume value; Sound signal to this after synthetic is carried out volume and is regulated, with the synthetic audio signal that obtains to be used to play.Preferably, said noise weighting volume value can also be confirmed according to said noise weight based on the difference between the volume value of the media file of said noise volume value and the current broadcast of subscriber equipment.

At this, because scene squelch information is based on the acquisition of scene noise relevant information, no matter is based on scene noise sample information and also is based on scene noise pattern information, scene squelch information is difficult to suppress fully the noise of subscriber equipment scene of living in.In order further to optimize scene Noise Suppression effect; Can obtain corresponding volume weighted information based on the noise information, volume of scene noise; And heighten the information, volume of the media file of the current broadcast of subscriber equipment in view of the above, make the user obtain better media play and experience.

Fig. 2 is a device synoptic diagram in accordance with a preferred embodiment of the present invention, a kind of Noise Suppression Device that is used at subscriber equipment playback of media files process scene noise being suppressed is shown and is used for the network equipment that assisting user equipment suppresses playback of media files process scene noise.At this; The network equipment includes but not limited to network host, single network server, a plurality of webserver collection or based on the set of computers of cloud computing; Wherein, cloud computing is a kind of of Distributed Calculation, a super virtual machine of being made up of the loosely-coupled computing machine collection of a group.Those skilled in the art will be understood that the above-mentioned network equipment is merely for example, and other network equipments existing or that possibly occur from now on also should be included in the protection domain of the present invention, and be contained in this with way of reference as applicable to the present invention.

As shown in Figure 2, Noise Suppression Device 1 comprises noise relevant information deriving means 211, squelch information acquisition device 212, audio-frequency information synthesizer 213 and composite signal playing device 214; The network equipment 2 comprises that noise relevant information receiving trap 221, squelch information confirms device 222 and squelch information transmitting apparatus 223.

Particularly, the noise relevant information deriving means 211 of Noise Suppression Device 1 obtains the scene noise relevant information of the subscriber equipment scene of living in of current playing media file; Squelch information acquisition device 212 is to the scene noise relevant information of the network equipment 2 these subscriber equipmenies of transmission scene of living in, to be used for acquisition and the corresponding scene squelch of said scene noise relevant information information; Correspondingly, the noise relevant information receiving trap 221 of the network equipment 2 is received from the scene noise relevant information of this subscriber equipment scene of living in of this subscriber equipment transmission; Squelch information is confirmed device 222 according to said scene noise relevant information, obtains and the corresponding scene squelch of said scene noise relevant information information; Squelch information transmitting apparatus 223 is sent to this subscriber equipment with said scene squelch information; Correspondingly, the squelch information acquisition device 212 of Noise Suppression Device 1 is received from the scene squelch information based on said scene noise relevant information that the network equipment 2 sends; Audio-frequency information synthesizer 213 synthesizes processing through the audio-frequency information with said scene squelch information and said media file, and the audio-frequency information after obtaining to synthesize is with the Composite tone information that obtains to be used to play; Composite signal playing device 214 is play said Composite tone information.

Wherein, The performed operation of the noise relevant information deriving means 211 of Noise Suppression Device 1 among Fig. 2, audio-frequency information synthesizer 213 and composite signal playing device 214 respectively with Fig. 1 in the performed content of operation of noise relevant information deriving means 111, audio-frequency information synthesizer 113 and the composite signal playing device 114 of Noise Suppression Device 1 identical or basic identical; For for simplicity; Repeat no more, be contained in this with way of reference.

The squelch information acquisition device 212 of Noise Suppression Device 1 is to the scene noise relevant information of the network equipment 2 transmission subscriber equipmenies scene of living in, to be used for acquisition and the corresponding scene squelch of said scene noise relevant information information; Correspondingly, the noise relevant information receiving trap 221 of the network equipment 2 is received from the scene noise relevant information of this subscriber equipment scene of living in of subscriber equipment transmission.

At this; Communication mode between the subscriber equipment and the network equipment comprises the various modes that can in two equipment, transmit data and/or information, include but not limited to based on 3GPP, LTE standard mobile communication, based on the compunication of the network transmission protocols such as TCP/IP, UDP, FTP, ICMP, NetBEUI or be present in other forms of communication in the computing machine; For example, the communication between the object of OOP the inside, the message transmission protocol in the operating system between distinct program or the computing machine disparate modules.Those skilled in the art will be understood that the communication mode between the above-mentioned subscriber equipment and the network equipment is merely for example; Other existing or subscriber equipmenies that possibly occur from now on and the communication mode between the network equipment are as applicable to the present invention; Also should be included in the protection domain of the present invention, and be contained in this with way of reference.

2) the scene noise sample information of subscriber equipment scene of living in includes but not limited to according to any applicable to sampling rule of the present invention, to the scene noise sample signal of the current scene sampling acquisition of living in of this subscriber equipment.

Those skilled in the art will be understood that above-mentioned scene noise relevant information is merely for example; Other scene noise relevant informations existing or that possibly occur from now on are as applicable to the present invention; Also should be included in the protection domain of the present invention, and be contained in this with way of reference.

Squelch information is confirmed the scene noise relevant information of device 222 according to subscriber equipment scene of living in, obtains and the corresponding scene squelch of said scene noise relevant information information.For example, squelch information is confirmed the scene noise sample signal of device 222 according to subscriber equipment scene of living in, generates corresponding inversion signal, and with the scene squelch signal of this inversion signal as this scene noise sample signal.

Squelch information transmitting apparatus 223 is sent to subscriber equipment with said scene squelch information; Correspondingly, the squelch information acquisition device 212 of Noise Suppression Device 1 is received from the scene squelch information based on said scene noise relevant information that the network equipment 2 sends.At this, the network equipment is identical with the aforementioned communication mode with communication mode between the subscriber equipment, repeats no more.

In this embodiment; Noise Suppression Device 1 is sent to the network equipment 2 with the scene noise relevant information of subscriber equipment scene of living in; Obtain corresponding scene squelch information by the network equipment 2 according to this scene noise relevant information; And provide to Noise Suppression Device, and then carry out subsequent operation according to this scene squelch information by Noise Suppression Device 1, the final completion handled the squelch of subscriber equipment scene of living in; Alleviate the calculated load of subscriber equipment, and made the user under this scene, obtain media play experience preferably.

In the preferred exemplary of this embodiment, the network equipment 2 suppresses information bank with network noise and is connected; Squelch information is confirmed the scene noise relevant information of device 222 according to subscriber equipment scene of living in, suppresses to inquire about in the information bank at network noise, to obtain corresponding scene squelch information; Squelch information transmitting apparatus 223 is sent to subscriber equipment with said scene squelch information; Correspondingly, the squelch information acquisition device 212 of Noise Suppression Device 1 is received from that the network equipment 2 sends inquires about said network noise based on said scene noise relevant information and suppresses the scene squelch information that information bank obtains.

At this; Said network noise suppresses to store and the corresponding scene squelch of various scene noise pattern information information in the information bank; Include but not limited to; With the corresponding scene squelch of various simple scene modes signal, perhaps, with the corresponding scene squelch of various scene noise pattern signals signal.

Preferably; Squelch information is confirmed the scene noise pattern information of device 222 according to subscriber equipment scene of living in; And the scene noise sample information of this scene, suppress to inquire about in the information bank at said network noise, to obtain corresponding scene squelch information.For example, said network noise suppresses to store several scenes noise pattern information in the information bank, and with the corresponding a plurality of scene squelch information of each scene noise pattern information; Squelch information is confirmed the scene noise pattern information of device 222 according to subscriber equipment scene of living in; Suppress to inquire about in the information bank at said network noise; To obtain corresponding a plurality of scene squelch information; And combine the scene noise sample information of this subscriber equipment scene of living in; From scene squelch information of mating most of these a plurality of scene squelch information selected, as final scene squelch information, to be sent to this subscriber equipment by squelch information transmitting apparatus 223 with this scene noise sample information.

Further, in this preferred exemplary, the network equipment 2 also comprises squelch information bank updating device (not shown).Squelch information bank updating device is according to the noise information of a plurality of scenes; Obtain and the corresponding a plurality of scene squelch information of said a plurality of scenes; According to said a plurality of scenes and corresponding a plurality of scene squelch information thereof, set up or upgrade said network noise and suppress information bank.

At this, the noise information of said a plurality of scenes can be gathered by the network equipment 2 voluntarily, or obtains from different subscriber equipmenies; The pairing scene squelch of each scene information can be generated by this network equipment 2 voluntarily, or obtains from other third party devices, has the equipment of squelch processing capacity such as other special-purpose squelch treatment facilities or other; Squelch information bank updating device according to scene and corresponding scene squelch information thereof one to one or the corresponding relation of one-to-many, set up or upgrade said network noise and suppress information bank.

In this preferred exemplary; The network equipment 2 is through requester network squelch information bank; The corresponding scene squelch of the scene noise relevant information information of scene of living in it is provided to subscriber equipment; Improved the inquiry response speed of scene squelch information; Thereby further make installation and operation effectively provided, promoted user's broadcast via this played media file under this scene simultaneously and experienced in the Noise Suppression Device of this subscriber equipment squelch efficient to current scene.

Fig. 3 is a method flow diagram according to a further aspect of the present invention, and a kind of process of playback of media files process scene noise being suppressed at subscriber equipment of being used for is shown.At this, this process can be realized by specific Noise Suppression Device, but this Noise Suppression Device installation and operation is in the operating system of subscriber equipment, subscriber equipment or the media player of subscriber equipment.At this; Subscriber equipment includes but not limited to anyly can carry out mutual electronic product with the user through mouse, keyboard, touch-screen etc. applicable to of the present invention, such as personal computer, notebook computer, panel computer, mobile phone, PDA, palm PC (PPC), game machine (PSP) etc.Those skilled in the art will be understood that above-mentioned subscriber equipment is merely for example, and other subscriber equipmenies existing or that possibly occur from now on also should be included in the protection domain of the present invention, and be contained in this with way of reference as applicable to the present invention.

As shown in Figure 3, in step S301, Noise Suppression Device obtains the scene noise relevant information of the subscriber equipment scene of living in of current playing media file; In step S302, Noise Suppression Device obtains and the corresponding scene squelch of said scene noise relevant information information according to said scene noise relevant information; In step S303, Noise Suppression Device synthesizes processing through the audio-frequency information with said scene squelch information and said media file, and the audio-frequency information after obtaining to synthesize is with the Composite tone information that obtains to be used to play; In step S304, Noise Suppression Device is play said Composite tone information.

In step S301, Noise Suppression Device obtains the scene noise relevant information of the subscriber equipment scene of living in of current playing media file.At this, Noise Suppression Device obtains said scene noise relevant information, such as scene noise pattern information, scene noise sample information etc. through various by software or hard-wired noise sampling instrument.

Wherein, the Noise Suppression Device mode of obtaining said scene noise relevant information includes but not limited to following mode:

For example; Noise Suppression Device obtains the scene noise sample signal of current scene of living in through the microphone collection of subscriber equipment; And according to this preset noise pattern sample storehouse of scene noise sample signal inquiry; Store the noise sample signal of several scenes pattern in this noise pattern sample storehouse; This scene noise sample signal and these noise sample signals are complementary, and to obtain the highest coupling noise sample signal of similarity, the pairing scene mode of this coupling noise sample signal is the scene noise pattern information of this subscriber equipment scene of living in.

And for example; Noise Suppression Device obtains the scene noise sample signal of current scene of living in through the microphone collection of subscriber equipment; And according to this preset noise pattern sample storehouse of scene noise sample signal inquiry; Store several scenes noise pattern signal in this noise pattern sample storehouse; This scene noise sample signal and these scene noise pattern signals are complementary, to obtain the highest coupling scene noise pattern signal of similarity, with the scene noise pattern information of this coupling scene noise pattern signal as this subscriber equipment scene of living in.

In step S302, Noise Suppression Device obtains and the corresponding scene squelch of said scene noise relevant information information according to said scene noise relevant information.At this, the mode that Noise Suppression Device obtains said scene squelch information includes but not limited to following mode:

In step S303, Noise Suppression Device synthesizes processing through the audio-frequency information with said scene squelch information and said media file, and the audio-frequency information after obtaining to synthesize is with the Composite tone information that obtains to be used to play; In step S304, Noise Suppression Device is play said Composite tone information.At this; Noise Suppression Device can be directly with said audio-frequency information after synthetic as the Composite tone information that is used to play; After also can doing further processing, with handling the back audio-frequency information that obtains as the Composite tone information that is used to play to the audio-frequency information after said synthesizing.For example, Noise Suppression Device is superimposed with the sound signal of the media file of the scene squelch signal of subscriber equipment scene of living in and current broadcast, and the sound signal that the stack back is obtained is as the synthetic audio signal that is used to play; Subsequently, Noise Suppression Device is play this synthetic audio signal.

In the preferred exemplary of this embodiment; In step S302, Noise Suppression Device is according to said scene noise pattern information, and said scene noise sample information; In said squelch information bank, inquire about, to obtain corresponding scene squelch information.For example, store several scenes noise pattern information in the said squelch information bank, and with the corresponding a plurality of scene squelch information of each scene noise pattern information; Noise Suppression Device is according to the scene noise pattern information of subscriber equipment scene of living in; In said squelch information bank, inquire about; To obtain corresponding a plurality of scene squelch information; And combine the scene noise sample information of this subscriber equipment scene of living in, from scene squelch information of mating most of these a plurality of scene squelch information selected, as final scene squelch information with this scene noise sample information.

In another preferred exemplary of this embodiment, in step S301, Noise Suppression Device obtains the scene noise relevant information of subscriber equipment scene of living in when satisfying predetermined squelch condition.At this; Predetermined squelch condition includes but not limited to; Any applicable to the condition that is used to judge whether subscriber equipment is carried out the scene squelch of the present invention, the current noise frequency fluctuation that does not connect in earphone, the predetermined time interval is to surpass predetermined threshold etc. such as subscriber equipment.Those skilled in the art will be understood that above-mentioned squelch condition is merely for example, and other squelch conditions existing or that possibly occur from now on also should be included in the protection domain of the present invention, and be contained in this with way of reference as applicable to the present invention.

For example, predetermined squelch condition comprises that the current audio output device of subscriber equipment is a loudspeaker, and in step S301, when satisfying this predetermined squelch condition, Noise Suppression Device obtains the scene noise relevant information of this subscriber equipment scene of living in; Subsequently, Noise Suppression Device is carried out the respective operations of other steps in succession, to obtain and to play the synthetic information, volume of the media file of the current broadcast of this subscriber equipment.

In another preferred exemplary of this embodiment, this process also comprises step S305 (not shown).In step S305; Noise Suppression Device obtains the noise information, volume of subscriber equipment scene of living in; According to said noise information, volume, and combination and the corresponding noise weight of said noise information, volume, confirm and the corresponding noise weighting information, volume of said noise information, volume; In step S303; Noise Suppression Device synthesizes processing through the audio-frequency information with said scene squelch information and said media file; Audio-frequency information after obtaining to synthesize; According to said noise weighting information, volume, the audio-frequency information after said synthesizing is carried out volume regulate, with the Composite tone information that obtains to be used to play.

For example, the noise information, volume is set corresponding noise weight, as interval according to the volume under the different noise information, volume; Set a noise weight for each volume is interval, the interval pairing noise volume value of volume is big more, and corresponding noise weight is also big more; Noise weight like volume interval [90,100] is 0.4, volume interval [100; 110] noise weight is 0.5, and the rest may be inferred; In step S305, Noise Suppression Device is confirmed the interval and corresponding noise weight of the affiliated volume of this noise volume value according to the noise volume value of subscriber equipment scene of living in, thereby confirms the noise weighting volume value of this noise volume value; In step S303; Noise Suppression Device is through synthesizing processing with the sound signal of the media file of the scene squelch signal of this subscriber equipment scene of living in and the current broadcast of this subscriber equipment; Sound signal after obtaining to synthesize; And according to this noise weighting volume value, the sound signal to this after synthetic is carried out volume and is regulated, with the synthetic audio signal that obtains to be used to play.Preferably, said noise weighting volume value can also be confirmed according to said noise weight based on the difference between the volume value of the media file of said noise volume value and the current broadcast of subscriber equipment.

Fig. 4 is a method flow diagram in accordance with a preferred embodiment of the present invention, the process that playback of media files process scene noise is suppressed at subscriber equipment that illustrates that a kind of Noise Suppression Device and the network equipment cooperate to realize.At this; The network equipment includes but not limited to network host, single network server, a plurality of webserver collection or based on the set of computers of cloud computing; Wherein, cloud computing is a kind of of Distributed Calculation, a super virtual machine of being made up of the loosely-coupled computing machine collection of a group.Those skilled in the art will be understood that the above-mentioned network equipment is merely for example, and other network equipments existing or that possibly occur from now on also should be included in the protection domain of the present invention, and be contained in this with way of reference as applicable to the present invention.

As shown in Figure 4, in step S401, Noise Suppression Device 1 obtains the scene noise relevant information of the subscriber equipment scene of living in of current playing media file; In step S4021, Noise Suppression Device 1 is to the scene noise relevant information of the network equipment 2 these subscriber equipmenies of transmission scene of living in, to be used for acquisition and the corresponding scene squelch of said scene noise relevant information information; Correspondingly, the network equipment 2 is received from the scene noise relevant information of this subscriber equipment scene of living in of this subscriber equipment transmission; In step S4022, the network equipment 2 obtains and the corresponding scene squelch of said scene noise relevant information information according to said scene noise relevant information; In step S4023, the network equipment 2 is sent to this subscriber equipment with said scene squelch information; Correspondingly, Noise Suppression Device 1 is received from the scene squelch information based on said scene noise relevant information that the network equipment 2 sends; In step S403, Noise Suppression Device 1 synthesizes processing through the audio-frequency information with said scene squelch information and said media file, and the audio-frequency information after obtaining to synthesize is with the Composite tone information that obtains to be used to play; In step S404, Noise Suppression Device 1 is play said Composite tone information.

Wherein, Among Fig. 4 Noise Suppression Device 1 in step S401, step S403 and step S404 performed operation respectively with Fig. 3 in Noise Suppression Device 1 performed content of operation in step S301, step S303 and step S304 identical or basic identical; For for simplicity; Repeat no more, be contained in this with way of reference.

In step S4021, Noise Suppression Device 1 is to the scene noise relevant information of the network equipment 2 transmission subscriber equipmenies scene of living in, to be used for acquisition and the corresponding scene squelch of said scene noise relevant information information; Correspondingly, the network equipment 2 is received from the scene noise relevant information of this subscriber equipment scene of living in of subscriber equipment transmission.

In step S4022, the network equipment 2 obtains and the corresponding scene squelch of said scene noise relevant information information according to the scene noise relevant information of subscriber equipment scene of living in.For example, the network equipment 2 generates corresponding inversion signal according to the scene noise sample signal of subscriber equipment scene of living in, and with the scene squelch signal of this inversion signal as this scene noise sample signal.

In step S4023, the network equipment 2 is sent to subscriber equipment with said scene squelch information; Correspondingly, Noise Suppression Device 1 is received from the scene squelch information based on said scene noise relevant information that the network equipment 2 sends.At this, the network equipment is identical with the aforementioned communication mode with communication mode between the subscriber equipment, repeats no more.

In the preferred exemplary of this embodiment, the network equipment 2 suppresses information bank with network noise and is connected; In step S4022, the network equipment 2 suppresses to inquire about in the information bank at network noise, to obtain corresponding scene squelch information according to the scene noise relevant information of subscriber equipment scene of living in; In step S4023, the network equipment 2 is sent to subscriber equipment with said scene squelch information; Correspondingly, Noise Suppression Device 1 is received from that the network equipment 2 sends inquires about said network noise based on said scene noise relevant information and suppresses the scene squelch information that information bank obtains.

Preferably; In step S4022, the network equipment 2 is according to the scene noise pattern information of subscriber equipment scene of living in, and the scene noise sample information of this scene; Suppress to inquire about in the information bank at said network noise, to obtain corresponding scene squelch information.For example, said network noise suppresses to store several scenes noise pattern information in the information bank, and with the corresponding a plurality of scene squelch information of each scene noise pattern information; The network equipment 2 is according to the scene noise pattern information of subscriber equipment scene of living in; Suppress to inquire about in the information bank at said network noise; Obtaining corresponding a plurality of scene squelch information, and combine the scene noise sample information of this subscriber equipment scene of living in, from scene squelch information of mating most of these a plurality of scene squelch information selected with this scene noise sample information; As final scene squelch information, to be sent to this subscriber equipment.

Further, in this preferred exemplary, this process also comprises step S406 (not shown).In step S406; The network equipment 2 is according to the noise information of a plurality of scenes; Obtain and the corresponding a plurality of scene squelch information of said a plurality of scenes,, set up or upgrade said network noise and suppress information bank according to said a plurality of scenes and corresponding a plurality of scene squelch information thereof.

To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned example embodiment, and under the situation that does not deviate from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore; No matter from which point; All should regard embodiment as exemplary; And be nonrestrictive, scope of the present invention is limited accompanying claims rather than above-mentioned explanation, therefore is intended to the implication of the equivalents that drops on claim and all changes in the scope are included in the present invention.Should any Reference numeral in the claim be regarded as limit related claim.In addition, obviously other unit or step do not got rid of in " comprising " speech, and odd number is not got rid of plural number.A plurality of unit of stating in system's claim or device also can be realized through software or hardware by a unit or device.The first, the second word such as grade is used for representing title, and does not represent any specific order.

Claims

1. one kind is used for the method that playback of media files process scene noise suppressed at the subscriber equipment end, and wherein, this method may further comprise the steps:

D plays said Composite tone information.

2. method according to claim 1, wherein, said step b comprises:

-according to said scene noise relevant information, in the squelch information bank, inquire about, to obtain said scene squelch information.

3. method according to claim 2, wherein, said squelch information bank comprises that network noise suppresses information bank;

Wherein, said step b comprises:

-send said scene noise relevant information to the network equipment, to be used for acquisition and the corresponding scene squelch of said scene noise relevant information information;

-be received from that the said network equipment sends inquire about said network noise based on said scene noise relevant information and suppress the scene squelch information that information bank obtains.

4. according to each described method in the claim 1 to 3, wherein, said scene noise relevant information comprise following at least each:

The scene noise pattern information of-said subscriber equipment scene of living in;

The scene noise sample information of-said subscriber equipment scene of living in.

5. method according to claim 4, wherein, said step a comprises:

-obtain the scene noise sample information of the subscriber equipment scene of living in of current playing media file;

-according to said scene noise sample information, confirm and the corresponding said scene noise pattern information of said scene noise sample information.

6. according to claim 4 or 5 described methods, wherein, claim 4 comprises that wherein, said step b comprises according to claim 2 or 3 described methods:

-according to said scene noise pattern information, and said scene noise sample information, in said squelch information bank, inquire about, to obtain said scene squelch information.

7. according to each described method in the claim 1 to 6, wherein, said step a comprises:

-when satisfying predetermined squelch condition, obtain said scene noise relevant information.

8. according to each described method in the claim 1 to 7, wherein, this method also comprises:

-obtain the noise information, volume of said subscriber equipment scene of living in;

-according to said noise information, volume, and combination and the corresponding noise weight of said noise information, volume, confirm and the corresponding noise weighting information, volume of said noise information, volume;

Wherein, said step c comprises:

-synthesize processing through audio-frequency information, the audio-frequency information after obtaining to synthesize with said scene squelch information and said media file;

-according to said noise weighting information, volume, the audio-frequency information after said synthesizing is carried out volume regulate, with the Composite tone information that obtains to be used to play.

9. one kind is used in the auxiliary method that playback of media files process scene noise is suppressed of network equipment end, and wherein, this method may further comprise the steps:

C is sent to said subscriber equipment with said scene squelch information.

10. method according to claim 9, wherein, said step B comprises:

-according to said scene noise relevant information, suppress to inquire about in the information bank at network noise, to obtain said scene squelch information.

11. according to claim 9 or 10 described methods, wherein, said scene noise relevant information comprise following at least each:

12. method according to claim 11, wherein, said step B comprises:

-according to said scene noise pattern information, and said scene noise sample information, suppress to inquire about in the information bank at said network noise, to obtain said scene squelch information.

13. according to each described method in the claim 9 to 12, wherein, this method also comprises:

-according to the noise information of a plurality of scenes, obtain and the corresponding a plurality of scene squelch information of said a plurality of scenes;

-according to said a plurality of scenes and corresponding a plurality of scene squelch information thereof, set up or upgrade said network noise and suppress information bank.

14. one kind is used for the device that playback of media files process scene noise suppressed at subscriber equipment, wherein, this device comprises:

15. device according to claim 14, wherein, said squelch information acquisition device is used for:

16. device according to claim 15, wherein, said squelch information bank comprises that network noise suppresses information bank;

Wherein, said squelch information acquisition device is used for:

-be received from that the said network equipment sends suppress the scene squelch information that inquiry obtains in the information bank based on said scene noise relevant information at said network noise.

17. according to each described device in the claim 14 to 16, wherein, said scene noise relevant information comprise following at least each:

18. device according to claim 17, wherein, said noise relevant information deriving means is used for:

19. according to claim 17 or 18 described devices, wherein, claim 17 comprises that according to claim 15 or 16 described devices, wherein, said squelch information acquisition device is used for:

20. according to each described device in the claim 14 to 19, wherein, said noise relevant information deriving means is used for:

21. according to each described device in the claim 14 to 20, wherein, this device also comprises noise volume weighting device, said noise volume weighting device is used for:

Wherein, said audio-frequency information synthesizer is used for:

22. one kind is used for the network equipment that assisting user equipment suppresses playback of media files process scene noise, wherein, this network equipment comprises:

23. the network equipment according to claim 22, wherein, said squelch information confirms that device is used for:

24. according to the claim 22 or the 23 described network equipments, wherein, said scene noise relevant information comprise following at least each:

25. the network equipment according to claim 24, wherein, said squelch information confirms that device is used for:

26. according to each described network equipment in the claim 22 to 25, wherein, this network equipment also comprises squelch information bank updating device, said squelch information bank updating device is used for:

27. one kind is used for system that playback of media files process scene noise is suppressed; Wherein, this system comprises that each describedly is used for the network equipment that assisting user equipment suppresses playback of media files process scene noise like each described device that is used at subscriber equipment playback of media files process scene noise being suppressed in the claim 14 to 21 with like claim 22 to 26.