CN106558303A - Array sound mask device and sound mask method - Google Patents
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Abstract
Array sound mask device, which includes access interface platform（20）Main control platform（10）With plurality of users platform（30）.In main control platform, memory（14）According to operating unit（12）The language selection command output voice interference signal for sending, the first signal processing unit（16）Voice interference signal random combine is generated into the first masking signal.Control unit（18）User platform is opened according to the user platform select command of operating unit output.User platform includes voice acquiring unit（34）, secondary signal processing unit（36）, sound reception unit（32）And audio playing unit（38）Secondary signal processing unit is connected with other devices and interface platform signal of user platform, after the voice signal segmentation paragraph that voice acquiring unit is exported by which, random combine generates the second masking signal, according to the first masking signal, the second masking signal, audio playing unit broadcasts the first masking sound and the second masking sound.
Description
Technical field
The present invention relates to a kind of sound mask device, more particularly to a kind of array sound mask device.Present invention also offers a kind of sound mask method.
Background technology
In language discourse, usually there is the content of privacy to be not desired to other people and know or do not want to allow in talk other people to record evidence obtaining.Existing mode is transmitted signal shielding often by equipment such as the recording to other people, eavesdroppings, finds in advance or part signal disturb to realize, but other people can not be prevented directly to understand conversation content, and the signal to equipment such as recording, eavesdroppings disturbs the situation for having failure, and in a meeting, the signal interference of the equipment such as recording, eavesdropping is also tended to affect the normal operation of meeting instrument.
The content of the invention
It is an object of the invention to provide a kind of array sound mask device, which can directly prevent other people from understanding, grasps, effectively enroll conversation content.
Another object of the present invention provides a kind of sound mask method, and its sound mask effect is good.
The invention provides a kind of array sound mask device, which includes that a main control platform, an interface platform and plurality of users platform, main control platform and user platform can access interface platform.Main control platform includes an operating unit, first signal processing unit and a control unit.Wherein operating unit can export a language selection command and a user platform select command.Memory is connected with operating unit signal, and memory includes a plurality of language memory cell, and be stored with each language memory cell a plurality of voice interference signals, and memory can export the voice interference signal of corresponding language memory cell according to language selection command.First signal processing unit can will generate first masking signal after voice interference signal random combine.Control unit can be exported for opening the open command of selected user platform according to user platform select command.Each user platform includes a voice acquiring unit, secondary signal processing unit, a sound reception unit and an audio playing unit.Wherein voice acquiring unit can convert sound into voice signal, secondary signal processing unit is connected with voice acquiring unit, interface platform signal respectively, which can pass through interface platform and export voice signal to other users platform and receive the voice signal of other users platform, voice signal can be split random combine after multiple paragraphs, second masking signal is generated, and the first masking signal can be received by interface platform.Sound reception unit is connected with secondary signal processing unit signal, and which can receive voice signal.Audio playing unit is connected with secondary signal processing unit signal, and the first masking signal can be generated and broadcast after the first masking sound by which, can be generated the second masking signal and broadcast after the second masking sound.
In a kind of exemplary embodiment of array sound mask device, audio playing unit also signal is connected to voice acquisition device, a masking sound is exported to audio playing unit while voice acquisition device output voice signal and sends order, the second masking sound or while the first masking sound of broadcast and the second masking sound are broadcasted to control audio playing unit.
In a kind of exemplary embodiment of array sound mask device, main control platform also includes an audio input interface that can be connected with the first signal processing unit signal, audio input interface can the external audio devices that can send voice signal, voice signal can be sent to sound receiver by the first signal processing unit by interface platform and secondary signal processing unit.
In a kind of exemplary embodiment of array sound mask device, the secondary signal processing unit of each user platform can also pass through first signal processing unit transport voice signal of the interface platform to main control platform.Main control platform also includes an audio output interface being connected with the first signal processing unit signal, and audio output interface is capable of the sound pick-up outfit of external one preservation voice signal of can recording.
In a kind of exemplary embodiment of array sound mask device, additional loudspeaker of the array sound mask device also including a plurality of accessible interface platforms, and each additional loudspeaker can correspond to one or more user platforms, which can receive the first masking signal and broadcast after generating the first masking sound, can receive after the second masking signal generates the second masking sound and broadcast.
In a kind of exemplary embodiment of array sound mask device, sound receiver is sound insulation earphone.
Present invention also offers a kind of sound mask method, which includes following step：Multiple language packs are set up, each language pack includes a plurality of voice interference signals；The voice that user sends is obtained, and converts the speech into voice signal；A language pack is selected from above-mentioned multiple language packs, and by the voice interference signal random combine in the language pack, is broadcasted after generating the first masking sound；Voice signal is split into random combine after multiple paragraphs, is broadcasted after generating the second masking sound.First masking sound, the second masking sound cover sound of speaking simultaneously and can improve masking effect.
In a kind of exemplary embodiment of sound mask method, the voice interference signal in each language pack is the recording paragraph of one group of sample collector, and one group of sample collector belongs to same category of language.And each language pack includes the recording paragraph of multigroup sample collector, all groups of all sample collectors belong to same category of language.
Hereafter by the way of clearly understandable, preferred embodiment is described with reference to the drawings, the above-mentioned characteristic, technical characteristic, advantage and its implementation to array sound mask device is further described.
Description of the drawings
The following drawings only does schematic illustration and explanation to the present invention, not delimit the scope of the invention.
Fig. 1 is to illustrate a kind of structural representation of exemplary embodiment of array sound mask device.
Fig. 2 is to illustrate the structural representation of structural relation between a main control platform of array sound mask device and a user platform.
Fig. 3 is to illustrate the structural representation of another kind of exemplary embodiment of array sound mask device.
Fig. 4 is to illustrate the structural representation of another exemplary embodiment of array sound mask device.
Label declaration
10 main control platforms
12 operating units
142 language memory cell
16 first signal processing units
18 control units
20 interface platforms
30 user platforms
32 sound reception units
34 voice acquiring units
36 secondary signal processing units
38 audio playing units
40 subsidiary players
50 audio devices
60 sound pick-up outfits
S1 language selection commands
S2 voice interference signals
The first masking signals of S3
S4 user platform select commands
S5 open commands
S6 voice signals
The second masking signals of S7
S8 masking sounds send order
S9 voice signals.
Specific embodiment
In order to the technical characteristic to inventing, purpose and effect are more clearly understood from, the existing specific embodiment of the control description of the drawings present invention, in the various figures identical label represent that structure is identical or structure is similar but function identical part.
Herein, " schematic " expression " serving as example, example or explanation ", any diagram of " schematic ", embodiment should not will be described herein as and is construed to a kind of preferred or more advantageous technical scheme.
To make simplified form, part related to the present invention in each figure, is only schematically show, they do not represent which as the practical structures of product.In addition, to readily appreciate simplified form, in some figures, the part with identical structure or function, only symbolically depicts one of those, or has only marked one of those.
Fig. 1 is to illustrate a kind of structural representation of exemplary embodiment of array sound mask device.As shown in Figure 1, array sound mask device includes 10, interface platform 20 of a main control platform and plurality of users platform 30, main control platform 10 and each user platform 30 can access interface platform 20, make main control platform 10 and each user platform 30 realize that signal connects.
The concrete structure of array sound mask device can be found in Fig. 2, which show the concrete structure of main control platform 10 and a user platform 30.As shown in Fig. 2 main control platform 10 includes the first signal processing unit 16 of the memory 14, of an operating unit 12, and a control unit 18.User platform 30 includes the sound reception unit 32 of secondary signal processing unit 36, of a voice acquiring unit 34, and an audio playing unit 38.
In main control platform 10, operating unit 12 can for example be that button switch, Touch screen etc. can be by the devices of operating personnel's input instruction, operating unit 12 can be connected with 18 signal of control unit, and control unit 18 is connected with each 30 signal of user platform by interface platform 20.Now operating personnel such as meeting presider can open the user platform 30 of relevant position according to the seat position of personnel participating in the meeting, operating personnel need to export user platform select command S4 by operating unit 12, one to No. five user platform 30 is chosen for example from one to No. ten user platform 30, control unit 18 can export an open command for being used to open selected user platform 30 according to user platform select command S4, after receiving the open command, corresponding one to No. five user platform 30 will be started working, realize being connected with the signal of main control platform 10 by interface platform 20.
Operating unit 12 can be being connected with 14 signal of memory, memory 14 includes a plurality of language memory cell 142, be stored with each language memory cell 142 a plurality of voice interference signals S2, voice interference signal S2 in each language memory cell 142 can be distinguished according to category of language, language environment, category of language for example by language memory cell 142 store the voice interference signal that is made up of Chinese, by language memory cell 142 store the voice interference signal that is made up of Korean, separation that certainly can be more to be refined according to country dialect.Language environment for example has the voice interference signal on simulation square, has the voice interference signal at simulation station.According to the difference that design needs, the voice interference signal of each storage of language memory cell 142 can also adopt other modes.Host can export a language selection command S1 according to the factor controlling such as the category of language of participant, language environment operating unit 12, and memory 14 can export voice interference signal S2 of corresponding language memory cell 142 according to language selection command S1.
First signal processing unit 16 such as arm processor, coder（CODEC）, can be connected with 14 signal of memory, which can be sent after generating a first masking signal S3 after voice interference signal S2 random combine.
In user platform 30, the sound of user can be converted to voice signal S6 by voice acquiring unit 34.Voice acquiring unit 34 can for example be a microphone or vibration pickup, and wherein vibration pickup is to obtain voice signal S6 according to the vibration of throat during user's sounding.Using after user platform 30, its speech content can be converted to voice signal S6 by voice acquiring unit 34 to participant, and certain voice signal S6 can also be changed by other sound, audio content that such as participant is played to voice acquiring unit 34 etc..
Secondary signal processing unit 36, such as arm processor, coder（CODEC）Deng, it is connected with voice acquiring unit 34 and 20 signal of interface platform, the voice signal S6 Jing interface platforms 20 that voice acquiring unit 34 can be obtained by secondary signal processing unit 36 send other users platform 30 to, and secondary signal processing unit 36 can also receive from the conveying of other users platform 30 the voice signal S6 for coming.And secondary signal processing unit 36 can also receive the first masking signal S3, voice signal S6 can also be divided into multiple little paragraphs, then these little paragraph random combines are generated into a second masking signal S7.
Sound reception unit 32 can be a sound isolating earphone, which is connected with 36 signal of secondary signal processing unit, the voice signal S6 that the voice acquiring unit 34 that sound reception unit 32 can receive this user platform 30 by secondary signal processing unit 36 is obtained, can be receiving the voice signal S6 that other users platform sends by secondary signal processing unit 36 and interface platform 20.So the content that the speech content of oneself is talked when other people can also be heard using other users platform 30 can have both been heard using the participant of this user platform 30, it is possible to achieve the communication between all personnels participating in the meeting.
Audio playing unit 38 can be a loudspeaker, which is connected with 36 signal of secondary signal processing unit, to receive the first masking signal S3 and the second masking signal S7, first masking signal S3 can be generated and broadcast after the first masking sound by audio playing unit 38, can generate the second masking signal S7 and broadcast after the second masking sound.
Above-mentioned array sound mask device can directly prevent other people from understanding, grasps, effectively enroll conversation content, secrecy effect is good, array sound mask device is usable in various occasions, for example, be usable in the larger place of conference space, be usable in teleconference etc..In a kind of occupation mode, the user platform that can need to open according to the position of participant or ground point selection by meeting presider, and according to forming the first masking signal after the category of language of participant, the selecting factors voice interference signal of language environment, and can broadcast after audio playing unit 38 generates the first masking sound.In the certain limit around each user platform 30 opened, everyone sound of speaking can be covered by the first masking sound, make the non-conference participants around participant not hear and understand conference content, even if masking sound can be recorded also using sound pick-up outfit and cannot not hear and understand.And the voice acquiring unit 34 and sound reception unit 32 that can pass through each user platform between each participant realizes conference communication, conference content is propagated.While conference speech person loquiturs and sends sound, the sound of speaking can be converted to voice signal S6 by voice acquiring unit 34, voice signal S6 can be split random combine after multiple paragraphs by secondary signal processing unit 36, the second masking signal S7 is generated, and the second masking signal S7 is generated by broadcast after the second masking sound by audio playing unit 38.The sound of speaking that first masking sound, the second masking sound covers simultaneously can further improve masking effect, and as plurality of users platform can be away from main control platform, so the conference content secrecy being capable of achieving in any distance.In addition, because the second masking sound needs to generate after operator loquiturs, therefore the second masking sound is spoken to have relative to operator and is postponed, and the first masking sound can be played at any time, compensate for the problems referred to above.
Fig. 3 is to illustrate the structural representation of another kind of exemplary embodiment of array sound mask device, as shown in Figure 3, audio playing unit 38 is gone back signal and is connected to voice acquisition device 34, a masking sound is exported to audio playing unit 38 while the output voice signal S6 of voice acquisition device 16 and sends order S8, the second masking sound or while the first masking sound of broadcast and the second masking sound are broadcasted to control audio playing unit 38.Using such design, audio playing unit 38 can be accurately controlled, make audio playing unit 38 that masking sound can be just sent only when participant makes a speech.
In Fig. 3 illustrated embodiments, main control platform 10 also includes an audio input interface 17 that can be connected with 16 signal of the first signal processing unit, audio input interface 17 can external one audio devices 50 that can send voice signal S9, voice signal S9 can pass through interface platform 20 and secondary signal processing unit 36 and be sent to sound receiver 32 by the first signal processing unit 16.After above-mentioned design, when one audio content of same broadcasting is needed, meeting presider can make the external audio devices 50 that can play the audio content of the audio input interface 17 of main control platform 10, make the participant of each user platform can be by 32 uppick of the sound receiver audio content.Certainly, above-mentioned audio input interface 17 can also an external video playback apparatus audio devices, for transmitting the sound-content of video-frequency playing content to each participant.
In the embodiment shown in Fig. 3, the secondary signal processing unit 36 of each user platform 30 can also pass through first signal processing unit 16 transport voice signal S6 of the interface platform 20 to main control platform 10.Main control platform 10 also includes an audio output interface 19 being connected with 16 signal of the first signal processing unit, and audio output interface 19 is capable of the sound pick-up outfit 60 of the external one preservation voice signal S6 that can record.Using such design, conference content can be enrolled from exclusive path in the case where Jing is allowed.
Fig. 4 is to illustrate the structural representation of another exemplary embodiment of array sound mask device.As shown in Figure 4, additional loudspeaker 40 of the array sound mask device also including a plurality of accessible interface platforms 20, and each additional loudspeaker 40 can correspond to one or more user platforms 30, which can receive the first masking signal S3 and broadcast after generating the first masking sound, can receive after the second masking signal S7 generates the second masking sound and broadcast.After using above-mentioned design, can be according to the position of user platform 30, in a user platform 30, or one subsidiary players 40 of placement play hidden sound in the region of multiple user platforms 30.To strengthen the sound mask effect of regional area.
Present invention also offers a kind of sound mask method, which includes following step：Multiple language packs are set up, each language pack includes a plurality of voice interference signals S2；The voice that user sends is obtained, and converts the speech into voice signal S3；A language pack is selected, and by the voice interference signal S2 random combine in the language pack, is broadcasted after generating the first masking sound；Voice signal S3 is split into random combine after multiple paragraphs, is broadcasted after generating the second masking sound.First masking sound, the second masking sound cover sound of speaking simultaneously and can improve masking effect.
Wherein, voice interference signal S2 in each language pack is the recording paragraph of one group of sample collector, and one group of sample collector belongs to same category of language.Described category of language had both included the difference of broadly languages, such as English, French, Japanese etc., the such as difference for also causing including speech habits in the narrow sense, various places dialect etc. herein.Sound sample to one group of sample collector, is more conducive to improve the second masking sound.And each language pack includes the recording paragraph of multigroup sample collector, all groups of all sample collectors belong to same category of language.Above-mentioned sampling process is that multiple sample collectors for belonging to same category of language are divided into multiple groups, member in different groups talks simultaneously, and enroll the sound in each group, the recording for recording is divided into into multiple recording paragraphs and each voice interference signal S2 in a language pack is constituted.
It should be understood that, although this specification is described according to each embodiment, but not each embodiment only includes an independent technical scheme, this narrating mode of specification is only for clarity, those skilled in the art should be using specification as an entirety, technical scheme in each embodiment can also Jing it is appropriately combined, formed it will be appreciated by those skilled in the art that other embodiment.
The a series of detailed description of those listed above is only for illustrating for the possible embodiments of the present invention; they simultaneously are not used to limit the scope of the invention; all equivalent embodiments made without departing from skill spirit of the present invention or change; combination, segmentation or repetition such as feature, should be included within the scope of the present invention.
Claims (9)
1. array sound mask device, it is characterised in which includes a main control platform（10）, an interface platform（20）With plurality of users platform（30）, the main control platform（10）With the user platform（30）Can access the interface platform（20）, wherein,
The main control platform（10）Including：
One can export a language selection command（S1）With a user platform select command（S4）Operating unit（12）,
One with the operating unit（12）The memory of signal connection（14）, which includes a plurality of language memory cell（142）, each language memory cell（142）In be stored with a plurality of voice interference signals（S2）, the memory（14）Can be according to the language selection command（S1）Output corresponding language memory cell（142）The voice interference signal（S2）,
One the first signal processing unit（16）, which can be by the voice interference signal（S2）First masking signal is generated after random combine（S3）,
One control unit（18）, which can be according to the user platform select command（S4）, export for opening the selected user platform（30）Open command（S5）；
Each user platform（30）Including：
One can convert sound into voice signal（S6）Voice acquiring unit（34）,
One respectively with the voice acquiring unit（34）, the interface platform（20）The secondary signal processing unit of signal connection（36）, which can pass through the interface platform（20）To user platform other described（30）Export the voice signal（S6）And receive other user platforms（30）Voice signal（S6）, can be by the voice signal（S6）Split random combine after multiple paragraphs, generate second masking signal（S7）, and the interface platform can be passed through（20）Receive first masking signal（S3）,
One with the secondary signal processing unit（36）The sound reception unit of signal connection（32）, which can receive the voice signal（S6）, and
One with the secondary signal processing unit（36）The audio playing unit of signal connection（38）, which can be by first masking signal（S3）Broadcast after generating the first masking sound, can be by second masking signal（S7）Broadcast after generating the second masking sound.
2. array sound mask device as claimed in claim 1, wherein, the audio playing unit（38）Also signal is connected to the voice acquisition device（34）, the voice acquisition device（34）Export the voice signal（S6）While to the audio playing unit（38）One masking sound of output sends order（S8）, to control the audio playing unit（38）Broadcast second masking sound or while broadcast first masking sound and second masking sound.
3. array sound mask device as claimed in claim 1, wherein, the main control platform（10）Can also be with first signal processing unit including one（16）The audio input interface of signal connection（17）, the audio input interface（17）Can external one can send voice signal（S9）Audio devices, first signal processing unit（16）Can be by the voice signal（S9）By the interface platform（20）With the secondary signal processing unit（36）Send to the sound receiver（32）.
4. array sound mask device as claimed in claim 1, wherein,
Each user platform（30）The secondary signal processing unit（36）, can also pass through the interface platform（20）To the main control platform（10）First signal processing unit（16）Convey the voice signal（S6）,
The main control platform（10）Also include one with first signal processing unit（16）The audio output interface of signal connection（19）, the audio output interface（19）Being capable of the external one preservation voice signal of can recording（S6）Sound pick-up outfit.
5. array sound mask device as claimed in claim 1, wherein, the array sound mask device also includes a plurality of can access the interface platforms（20）Additional loudspeaker（40）, and each additional loudspeaker（40）One or more described user platforms can be corresponded to（30）, which can receive first masking signal（S3）And broadcast after generating the first masking sound, second masking signal can be received（S7）Broadcast after generating the second masking sound.
6. array sound mask device as claimed in claim 1, wherein, the sound receiver（32）For the earphone that insulates against sound.
7. sound mask method, which includes following step：
Multiple language packs are set up, each language pack includes a plurality of voice interference signals（S2）；
The voice that user sends is obtained, and converts the speech into voice signal（S3）；
A language pack is selected, and by the voice interference signal in the language pack（S2）Random combine, broadcasts after generating the first masking sound；With
By the voice signal（S3）Split random combine after multiple paragraphs, broadcast after generating the second masking sound.
8. sound mask method as claimed in claim 7, wherein, the voice interference signal of in each language pack（S2）For the recording paragraph of one group of sample collector, sample collector described in a group belongs to same category of language.
9. sound mask method as claimed in claim 8, wherein, each language pack includes the recording paragraph of multigroup sample collector, and all groups of all described sample collector belongs to same category of language.
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