CN205004028U - Ware is sheltered to single channel sound - Google Patents

Abstract

Ware is sheltered to single channel sound, it includes language select switch, memory, sound acquisition device, signal processor and audio player. The exportable language select command of language select switch. Including a plurality of language memory cell in the memory, the storage has a plurality of pronunciation interfering signal among each language memory cell, and the memory can be according to the corresponding language memory cell's of language select command output pronunciation interfering signal. Sound acquisition device is speech signal with voice conversion. Signal processor includes the first signal processing unit and second signal processing unit. The first signal processing unit makes up after can cutting apart speech signal at random, generates first masking signal. After can making up pronunciation interfering signal at random, the 2nd signal processing unit generates the second masking signal. Audio player can be with broadcasting behind the first masking sound of the first signal generation of sheltering, broadcasts after sheltering signal generation second masking sound with the second. Above -mentioned ware is sheltered to single channel sound can directly prevent other people to understand or effectively enroll the talk content.

Description

Single channel sound mask device

Technical field

The utility model relates to a kind of sound mask interference unit, particularly relates to a kind of single channel sound mask device.

Background technology

In language discourse, other people know or in talk, do not want to allow other people record evidence obtaining usually to have the content of privacy not think.Existing mode is often by the equipment such as other people recording, eavesdropping being carried out to signal transmission shielding, finding or part signal interference realizes in advance, it can not stop other people directly to understand conversation content, and the signal disturbing of the equipment such as recording, eavesdropping is had to the situation of failure, and affect normal telecom communication.

Utility model content

The purpose of this utility model is to provide a kind of single channel sound mask device, and it can directly stop other people to understand, grasps, effectively enroll conversation content.

The utility model provides a kind of single channel sound mask device, and it comprises a speech selection switch, a storer, sound capturing unit, a signal processor and an audio player.Wherein, the exportable language selection command of speech selection switch.Storer is connected with speech selection switching signal, storer comprises a plurality of language storage unit, store a plurality of voice undesired signal in each language storage unit, storer can export the voice undesired signal of corresponding language storage unit according to language selection command.Sound is converted to audio digital signals by sound capturing unit.Signal processor comprises first signal processing unit and a secondary signal processing unit.First signal processing unit is connected with sound capturing unit signal, and it by random combine after voice signal segmentation, can generate first masking signal.Secondary signal processing unit is connected with storer signal, and it can generate second masking signal by after voice undesired signal random combine.Audio player is connected with signal processor signal, and it broadcasts after the first masking signal can being generated the first masking sound, broadcasts after the second masking signal is generated the second masking sound.

In a kind of exemplary embodiment of single channel sound mask device, audio player also signal is connected to sound capturing unit, sound capturing unit exports a masking sound to audio player while obtaining voice signal and gives an order, and broadcasts the second masking sound to control audio player or broadcasts the first masking sound and the second masking sound simultaneously.

In a kind of exemplary embodiment of single channel sound mask device, sound capturing unit is a microphone or is a vibro-pickup.

Hereafter by clearly understandable mode, accompanying drawings preferred embodiment, is further described the above-mentioned characteristic of single channel sound mask device, technical characteristic, advantage and implementation thereof.

Accompanying drawing explanation

The following drawings only schematically illustrates the utility model and explains, does not limit scope of the present utility model.

Fig. 1 shelters the structural representation of a kind of exemplary embodiment of device in order to instruction book channel sound.

Fig. 2 shelters the structural representation of the another kind of exemplary embodiment of device in order to instruction book channel sound.

Label declaration

12 language pack selector switch

14 storeies

142 language storage unit

16 sound capturing unit

17 signal processors

172 first signal processing units

174 secondary signal processing units

18 audio players

S1 language selection command

S2 voice undesired signal

S3 voice signal

S4 first masking signal

S5 second masking signal

S6 masking sound is given an order.

Embodiment

In order to the technical characteristic to utility model, object and effect have understanding clearly, now contrast accompanying drawing and embodiment of the present utility model is described, label identical in the various figures represents that structure is identical or structure is similar but the parts that function is identical.

In this article, " schematically " expression " serves as example, example or explanation ", not should by being described to any diagram of " schematically " in this article, embodiment is interpreted as a kind of preferred or have more the technical scheme of advantage.

For making simplified form, only schematically show the part relevant to the utility model in each figure, they do not represent its practical structures as product.In addition, being convenient to for making simplified form understand, there are the parts of identical structure or function in some figure, only schematically depict one of them, or only having marked one of them.

In this article, " first ", " second " etc. only for differentiation each other, but not represent they significance level and order etc.

Fig. 1 shelters the structural representation of a kind of exemplary embodiment of device in order to instruction book channel sound.As shown in Figure 1, single channel sound mask device comprises a speech selection switch 12, storer 14, sound capturing unit 16, signal processor 17 and an audio player 18.Wherein,

The exportable language selection command S1 of speech selection switch 12, it can be a hand switch, is operated by operator.

Multiple language storage unit is stored in storer 14, a plurality of voice undesired signal S2 is stored in each language storage unit 142, voice undesired signal S2 in each language storage unit 142 can distinguish according to category of language, language environment, category of language such as by language storage unit 142 store the voice undesired signal be made up of Chinese, by language storage unit 142 store the voice undesired signal be made up of Korean, certainly can also carry out the separation of more refinement according to country dialect.Language environment such as has the voice undesired signal on simulation square, has the voice undesired signal at simulation station.According to the difference that design needs, the voice undesired signal that each language storage unit 142 stores also can be different.Storer 14 can export the voice undesired signal S2 of corresponding language storage unit 142 according to language selection command S1

The sound of user can be converted to voice signal S3 by sound capturing unit 16, and it can be the sound-conducting apparatus such as microphone.

Signal processor 17, as arm processor, coder (CODEC), comprises first signal processing unit 172 and secondary signal processing unit 174, first signal processing unit 172 is connected with sound capturing unit 16 signal.Secondary signal processor 174 is connected with storer signal.Voice signal S3 can be divided into multiple little paragraph by the first signal processing unit 172, then by these little paragraph random combines, generates a first masking signal S4.Secondary signal processing unit 174 can produce a second masking signal S5 by after voice undesired signal S2 random combine.

Audio player, it can be a loudspeaker, broadcasts after the first masking signal S4 can being generated the first masking sound, broadcasts after also the second masking signal S5 can being generated the second masking sound.

When above-mentioned single channel sound mask device uses, operator can according to information output language select commands such as the category of language of self, language environments.Storer 14 exports the voice undesired signal S2 of corresponding language storage unit 142 according to this language selection command S1.Second processing unit 174 generates the second masking signal S5 by after those voice undesired signal S2 random combine, and broadcasts after generating the second masking sound by audio player 18.When now operator makes a phone call or chats with people is close, second masking sound can cover sound of speaking, make cannot understand sound of speaking away from other people of operator's certain limit, even if adopt sound pick-up outfit also can record masking sound and cannot not hear, and operator is spoken to phone by in-plant, or talk with people, the other side can receive sound-content clearly.Operator loquitur sound while, sound capturing unit 16 sound of this can being spoken is converted to voice signal S3, this voice signal S3 can be split random combine after multiple paragraph by the first signal processing unit 172, generate a first masking signal S4, and broadcast after first masking signal S4 being generated the first masking sound by audio player 18.First masking sound, the second masking sound cover sound of speaking simultaneously can improve masking effect further.In addition, because the first masking sound needs could generate after operator loquiturs, therefore the first masking sound is spoken can have delay relative to operator, and the second masking sound can be play at any time, compensate for the problems referred to above.

Fig. 2 shelters the structural representation of the another kind of exemplary embodiment of device in order to instruction book channel sound.As shown in Figure 2, audio player 18 is gone back signal and is connected to sound capturing unit 16, export a masking sound to audio player 18 while sound capturing unit 16 obtains voice signal S3 to give an order S6, broadcast the second masking sound to control audio player 18 or broadcast the first masking sound and described second masking sound simultaneously.Adopt in such a way, single channel sound mask device can be made only to send hidden sound when operator speaks.Wherein, sound capturing unit 16 can be a microphone or be a vibro-pickup.

Be to be understood that, although this instructions describes according to each embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should by instructions integrally, technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.

A series of detailed description listed is above only illustrating for possible embodiments of the present utility model; they are also not used to limit protection domain of the present utility model; allly do not depart from the utility model skill equivalent embodiments of doing of spirit or change; as the combination of feature, segmentation or repetition, all should be included within protection domain of the present utility model.

Claims (3)

1. single channel sound mask device, is characterized in that comprising:

The speech selection switch (12) of an exportable language selection command (S1);

A storer (14) be connected with described speech selection switch (12) signal, comprising a plurality of language storage unit (142), store a plurality of voice undesired signal (S2) in each described language storage unit (142), described storer (14) can export the described voice undesired signal (S2) of corresponding language storage unit (142) according to described language selection command (S1);

One can obtain voice and be converted into the sound capturing unit (16) of voice signal (S3);

A signal processor (17), comprising:

First signal processing unit (172) be connected with described sound capturing unit (16) signal, described voice signal (S3) is split random combine after multiple paragraph by it, generates first masking signal (S4), and

A secondary signal processing unit (174) be connected with described storer (14) signal, it can generate second masking signal (S5) by after described voice undesired signal (S2) random combine; And

An audio player (18) be connected with described signal processor signal, it broadcasts after described first masking signal (S4) is generated the first masking sound, broadcasts after described second masking signal (S5) is generated the second masking sound.

2. single channel sound mask device as claimed in claim 1, wherein, described audio player (18) is gone back signal and is connected to described sound capturing unit (16), export a masking sound to described audio player (18) while described sound capturing unit (16) obtains described voice signal (S3) to give an order (S6), broadcast described second masking sound to control described audio player (18) or broadcast described first masking sound and described second masking sound simultaneously.

3. single channel sound mask device as claimed in claim 1, wherein said sound capturing unit (16) is a microphone or is a vibro-pickup.