CN104301827A

CN104301827A - Smart filter earphone

Info

Publication number: CN104301827A
Application number: CN201410574452.0A
Authority: CN
Inventors: 吴彩云
Original assignee: HEFEI XINGFU INFORMATION TECHNOLOGY Co Ltd
Current assignee: HEFEI XINGFU INFORMATION TECHNOLOGY Co Ltd
Priority date: 2014-10-24
Filing date: 2014-10-24
Publication date: 2015-01-21

Abstract

The invention provides a smart filter earphone. After being collected by a device, fixed input sound sources and environment collection sound sources are processed in multiple channels. Unnecessary sound source signals are eliminated, and ultimately, the needed signals in the multiple channels are combined and output.

Description

A kind of intelligently filters earphone

Technical field

The present invention relates to a kind of intelligently filters earphone, the special device adopting the method for acoustic wave analysis to filter sound and reduce.

Background technology

Along with development and the electronic technology continuous application in daily life of modern electronic technology, the perception of people to environment is greatly improved, by various electronic product, people can see the thing be invisible to the naked eye, and hear the unheard sound of people's ear.Earphone is aid indispensable in people's daily life, pass through earphone, excellent melody can be listened, while but earphone brings interesting to listen to music to us, but by other acoustic barrier outside, we can see the message that newspaper is published often, have people to wear earphone because of going across the road and listen to the music, do not notice that the tucket of vehicle leads to a disaster.In noisy job site, sometimes need on-site working, but often cannot carry out because noise is too large, even can cause certain injury to health.

Summary of the invention

Technical problem to be solved by this invention is: for above-mentioned Problems existing, provides a kind of multichannel voice filtering and the device of synthesis, can automatically select the sound wanted according to the demand of different occasion.

The present invention is achieved in that

Adopt a selectivity earphone for voice filtering synthetic technology, comprise band phonetic entry mouth, ambient sound acquisition port, sample collection module, speech analysis filtering module, voice synthetic module, receiver.

Phonetic entry mouth is exactly the entrance accessing existing sound source, can be the output signal of player, is passed to the phonetic entry mouth of earphone by tone frequency channel wire, as a road original sound source, and is converted into digital signal.

Ambient sound acquisition port is a pick-up, is used for gathering the sound of external environment, changes environmental sound signal into the signal of telecommunication be converted into digital signal again in the mode simulated.

Sample collection module, according to user's request, is analyzed the voice signal that a section is specified, and obtains its acoustic characteristic value, as wavelength, cycle and wave amplitude etc., is convenient to analysis module and accepts or rejects.

Speech analysis filters mould and the voice signal collected is divided into some signal processing channels, and each passage only processes the signal of certain frequency scope.Analyze the acoustic signals meeting sample conditions in each passage respectively, and accept or reject according to the requirement of user.

The signal of different passage after filtering is merged into digital signal and is converted into the signal of telecommunication by voice synthetic module.

It is voice signal that receiver is responsible for transform electrical signals.

Innovative point of the present invention is:

1, the sample characteristics by prestoring, can accept or reject the voice signal meeting characteristic value;

2, choosing of sample audio can free setting, is that to get be give up also free setting, flexible and changeable, adapts to different occasions.

Accompanying drawing explanation

Fig. 1 is device general illustration of the present invention.

Embodiment

Describe the present invention in detail below in conjunction with accompanying drawing, it illustrates principle of the present invention as the part of this specification by embodiment.

According to Fig. 1, the present invention propose a kind of will fix input source of sound and the collection of environment collection source of sound after, be divided into band-wise processing.Give up unwanted sound source signal, finally the method that the signal syntheses of each passage needed also exports.

First to be saved, for being analyzed the signal gathered later by the characteristic value of control panel control signal processor analyzing samples source of sound.In actual use occasion, during as gone across the road, earphone input signal and environment collection signal all can be let pass, such user, when going across the road, while both can enjoying music, also can hear other sound, as the speaker sound of automobile, just can safe listening to the music while gone across the road.

For another example in building-site office, often have huge set noise, make people cannot not hear speaking of the other side, we the signature analysis of interference tones out, and can preserve its characteristic value.When we talk at the construction field (site), normal voice and noise are all simultaneously collected comes in, when DSP becomes aware of the data of feature of noise, just set noise can be got rid of, other data are still passed through, and we both can be talked each other like a cork, again not by the interference of noise.

The various change made by those skilled in the art or remodeling all can not depart from the scope of the present invention.

Claims

1. adopt an intelligently filters earphone for voice filtering synthetic technology, comprise band phonetic entry mouth, ambient sound acquisition port, sample collection module, speech analysis filtering module, voice synthetic module, receiver.

2. phonetic entry mouth is exactly the entrance accessing existing sound source, can be the output signal of player, is passed to the phonetic entry mouth of earphone by tone frequency channel wire, as a road original sound source, and is converted into digital signal.

3. ambient sound acquisition port is a pick-up, is used for gathering the sound of external environment, changes environmental sound signal into the signal of telecommunication be converted into digital signal again in the mode simulated.

4. sample collection module, according to user's request, is analyzed the voice signal that a section is specified, and obtains its acoustic characteristic value, as wavelength, cycle and wave amplitude etc., is convenient to analysis module and accepts or rejects.

5. the voice signal collected is divided into some signal processing channels by speech analysis filtration mould, and each passage only processes the signal of certain frequency scope.

6. analyze the acoustic signals meeting sample conditions in each passage respectively, and accept or reject according to the requirement of user.

7. the signal of different passage after filtering is merged into digital signal and is converted into the signal of telecommunication by voice synthetic module.

8. receiver is responsible for transform electrical signals is voice signal.