CN102158470B - Acoustic signal processing system for mobile portable device and processing method thereof - Google Patents
Acoustic signal processing system for mobile portable device and processing method thereof Download PDFInfo
- Publication number
- CN102158470B CN102158470B CN201110032687.3A CN201110032687A CN102158470B CN 102158470 B CN102158470 B CN 102158470B CN 201110032687 A CN201110032687 A CN 201110032687A CN 102158470 B CN102158470 B CN 102158470B
- Authority
- CN
- China
- Prior art keywords
- module
- terminal
- data
- server end
- mobile portable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses an acoustic signal processing system for a mobile portable device and a processing method thereof. The system adopts a microphone on the existing mobile portable device to collect acoustic signals on the periphery of the existing mobile device and adopts an operational unit to compute various acoustic property indexes in a present environment, displays various analysis results and patterns through a display, and gives suggestions for users according to analysis results. If the mobile portable device is provided with a communication network, the system can also transmitthe analysis results and the azimuth position of the mobile portable device to a server, and the server can predict and draw an acoustic distribution diagram in a larger zone through data fed back from all users and a geographic information system, and feed back summarized results to all the users, thereby realizing real-time monitoring, analysis and early warning on noise in a large zone.
Description
Technical field
The present invention relates to a kind of signal processing method and system, relate to specifically a kind of acoustic signal processing system for mobile portable equipment and processing method thereof.
Background technology
Sound especially noise effect people's normal life, working and learning.People are under noise circumstance, and mood is fidgety, dispersion attention, fatiguability, slow in reacting, thereby cause work, learning efficiency to reduce, and affects job schedule, and the reduction work quality is also easily made mistakes and caused accident; Noise jamming people sleep, the harm people are physically and mentally healthy, reduce people's quality of life.
Noise not only damages people's the sense of hearing, causes Hearing and noise deafness, and nervous system, cardiovascular system, internal system, digestive system and vision, intelligence etc. are had in various degree impact.
Long term exposure is in high-noise environment, and the hearing organ constantly is subject to the stimulation of noise, and in the course of time, the hearing organ is dog-tired, and organic disease will occur.Foreign study shows, the cochlear hair cell loss that noise causes can cause the sex change of auditory nerve fiber, spiral ganglion sex change can cause reducing of cochlea nerve Assessment of Nuclear Volume, and Apoptosis and nucleus reduce; Noise stimulates cynapse oedema, sex change even the necrosis that can cause that inner hair cell, auditory nerve and inner hair cell and auditory nerve form simultaneously; Domestic also there are some researches show, Noise Exposure not only causes the damage of external hair cell, can also cause the damage of inner hair cell and afferent neurofibers; The damage of Cochlear out hair cell and inner hair cell or lose can cause the temporary or nonvolatil sense of hearing to cut off from and move.
In the face of present situation like this; a kind of way of reality is to understand the noise situations of surrounding environment constantly; selecting quiet suitable place life also is simultaneously hearing and the health of protection oneself; this just needs to know in real time that own environment of living in reaches the noise situations in larger zone on every side, and this is original intention of the present invention namely.
The method and apparatus of existing measure ambient noise is mainly concentrated and is specialized sound level meter, particularly, on the one hand the in recent years development of technology make the sound level meter structure from analog march toward digital, measure dynamic range larger, measures more accurate, but owing to being specialized apparatus, expensive, difficult in maintenance, be not suitable for extensive use, more difficult accomplish everybody one one.Present mobile portable equipment has possessed the hardware foundation of measuring comparatively accurately the acoustical signal indices and the demand that can better meet different acoustical signal measurements along with this hardware platform of method of technology on the other hand.
Summary of the invention
For the deficiencies in the prior art, the purpose of this invention is to provide a kind of acoustic signal processing system for mobile portable equipment and processing method thereof, accurately the acoustical signal situation of sense terminals user environment of living in.What the present invention will solve is exactly the hardware and software platform that how to take full advantage of existing mobile portable equipment, realize terminal and server end two places account form, obtain required sound primary signal, and obtain fast the parameters index of local and larger regional acoustical signal through the calculating of Rational Simplification.
To achieve these goals, the invention provides a kind of acoustic signal processing system for mobile portable equipment, comprise terminal processes subsystem and server end processing subsystem,
The terminal processes subsystem comprises the acoustical signal acquisition module, pretreatment module, the terminal signaling processing module, the terminal display module, the terminal data storage module, terminal data merges/resolves module, the end message module, communication module and terminal calibration module, wherein, the output of acoustical signal acquisition module links to each other with the input of pretreatment module, the output of pretreatment module links to each other with the input of terminal data storage module with the terminal signaling processing module, the output of terminal signaling processing module and terminal data storage module, the terminal display module, the input that terminal data merges/resolve module links to each other, the output that terminal data merges/resolve module links to each other with the input of communication module, the output of end message module merges/resolve module with terminal data input links to each other, and the output of terminal calibration module links to each other with the input of pretreatment module;
The server-side processes subsystem comprises that servers' data merges/resolve module, the server end signal processing module, the server end display module, the server end calibration module, GIS-Geographic Information System module and servers' data storage module, wherein, servers' data merges/resolves module, the output of server end calibration module and GIS-Geographic Information System module links to each other with the input of server end signal processing module respectively, and output and the servers' data of server end signal processing module merge/resolve module, the server end display module links to each other respectively with the input of servers' data storage module;
Wherein, the communication module of terminal subsystem merges/resolves module with the servers' data of server-side processes subsystem and is connected.
Described terminal signaling processing module comprises time weighted module, special weighted module, frequency weighted module, energy computing module and octave analysis module, and is in parallel with the octave analysis module after time weighted module, special weighted module, frequency weighted module and energy computing module are connected successively.
Described server end signal processing module comprises acoustic pressure prediction module, the special data processing ﹠amp that is in series; Warning module and data compressing module.
Described mobile portable equipment comprises mobile phone, pocket pc, panel computer, personal digital assistant, music and video player.
The present invention also provides a kind of acoustical signal processing method for mobile portable equipment, may further comprise the steps:
S1. from terminal use's environmental sound signal, extracted terminal use's local sound characteristics index by the terminal processes subsystem, and be uploaded to the server-side processes subsystem;
S2. obtain regional sound characteristics index by the server-side processes subsystem, calculate terminal sound characteristics index about the terminal use in conjunction with the local sound characteristics index that receives, draw out spatial noise distribution map about the terminal use according to terminal sound characteristics index.
Among the described step S1, the terminal processes subsystem is to utilize mobile portable equipment hardware and software platform to finish collection, analysis and storage work to the local acoustical signal of terminal use, allow and communication condition provides data sharing also can accept the larger regional acoustic performance performance data that the server end computing obtains for obtaining wider acoustical signal characteristic at the partial data end that uploads onto the server under allowing at subscriber authorisation simultaneously, may further comprise the steps:
In the acoustical signal acquisition module, utilize the microphone hardware of mobile portable equipment and corresponding driver to finish collecting work to the terminal surrounding voice signal;
In pretreatment module, different according to the model of using microphone in the various mobile portable equipment, sensitivity and frequency characteristic according to microphone compensate and revise the voice signal that collects, and form the preliminary treatment acoustical signal and send the terminal signaling processing module to carry out computing; According to user control signal the original acoustical signal that gathers is compressed, and will compress afterwards acoustical signal and send the terminal data storage module to and store; According to the calibrating signal that the terminal calibration module provides the terminal processes subsystem is set calibration data;
On the preliminary treatment acoustical signal of input is carried out computing according to user control signal and drawn local sound characteristics index in the terminal signaling processing module, preserve, the result shown or send to terminal data and merge/resolve module by the terminal display module and do further data and process by the terminal data storage module;
In the terminal display module, utilize the display screen in the mobile portable equipment to show local sound characteristics index;
In the terminal data storage module, utilize the storage medium in the mobile portable equipment, store control signal according to the user and select compressing rear acoustical signal and the sound characteristics result is preserved;
Merge at terminal data/resolve in the module and authorize under permission and the communication condition permission the terminal use, finish uploading local local sound characteristics index and fusion and the packing of terminal location and temporal information, simultaneously to showing from resolving with the passback data of server end and sending the terminal sound characteristics index in the larger zone of terminal surrounding to the terminal display module;
In the end message module the terminal use authorize allow and the communication condition permission under, utilize the existing hardware resource of mobile portable equipment, position signalling and the temporal information of terminal send terminal data to and merge/resolve module with this moment;
In communication module, authorize under permission and the communication condition permission the terminal use, finish the bi-directional work of terminal data and servers' data;
According to calibrating signal the terminal processes subsystem is carried out the sound measurement calibration by the terminal calibration module, it can be measured sound more accurately.
Described step S1 also is included in the octave analysis module of terminal signaling processing module and carries out the octave computing according to the preliminary treatment acoustical signal, and result exported as the local sound characteristics index of computing, wherein the octave analysis module is used for realizing 1,1/3,1/6,1/12,1/24,1/48,1/96 octave and FFT spectrum analysis, time weighted module, frequency weighted module and energy computing module are with reference to IEC61672-1 (International Electrotechnical Commission 61672-1, the 61672-1 of International Electrotechnical Commission standard) carries out the sound characteristics discrete data result who obtains, and join in the local sound characteristics index and export, special weighted module is used for according to user's special requirement local sound characteristics index being compensated.
Among the described step S2, the server-side processes subsystem unpacks from each and is positioned at the information that the diverse location terminal is uploaded, on the basis of these data, merge GIS data and carry out more accurately acoustic performance prediction, thereby be built into one more comprehensively, the acoustic performance distribution map in larger zone is used for showing, stores and the passback terminal use, may further comprise the steps:
Merge at servers' data/resolve and finish in the module the task that unpacks of each terminal use's uploading data and the packing compression duty of server end final calculation result;
The acoustic intelligence that in the server end signal processing module, provides according to the various discrete terminal, in conjunction with server end calibration module and GIS-Geographic Information System module, finish the sound characteristics in each larger zone, terminal use place is merged and prediction, and return to servers' data and merge/resolve module;
Show in server end display module calmodulin binding domain CaM sound characteristics index and geographic properties information;
In the server end calibration module, utilize existing social public resource, comprise that standard noise measuring station etc. provides the acoustic intelligence that reliably distributes accurately for whole measuring system, this module relies on the sound of accurate specialty to gather and analytical system, acoustical signal is on every side measured accurately and these data are back to the server end signal processing module make whole prediction more accurate for it in these place, system for accurately testing positions calibration acoustical signal data;
In the GIS-Geographic Information System module, provide GIS data, make it predict more accurately acoustic pressure according to different topography and geomorphologies and above-ground structures;
The preservation of completion service device end regions acoustical signal characteristic packed data (44) in the servers' data storage module.
Described step S2 comprises that also the acoustic pressure prediction module in the server end signal processing module finishes the sound field characteristic in larger zone and merge work with prediction, and special data is processed ﹠amp; Warning module can be according to the regional acoustic performance result who calculates according to the thresholding early warning high sound pressure zone of setting before, play the effect of Real-Time Monitoring and all kinds of disasters of early warning, simultaneously can orient concrete generation high sound pressure region according to burst high sound pressure signal data and place temporal information that the user provides, finish social event and monitoring and early warning, and with these deal with data packing is compressed into server end zone acoustical signal characteristic packed data and sends to the servers' data memory module and preserve through data compressing module, while just will comprise that the server end zone acoustical signal performance data of complete information directly sends to the server end display module and shows, and the data that the terminal use pays close attention to are returned to the terminal use through Data-Link.
Compared with prior art, beneficial effect of the present invention is:
1, the present invention can utilize the software and hardware platform of existing mobile portable equipment to realize the test macro of multiple sound analysis function.After the acoustical signal that collects user's environment of living in, adopt method of the present invention to analyze and obtain the results such as sound pressure level, sound exposure level and spectral characteristic, after utilizing communication function to send local data to server, after each user of fusion transmits data and location and time information, server can dope the user the sound distribution situation in larger zone around, and these information are returned to the user.So just can the user not only can know the voice and sentiment condition of current location can also know know around larger regional voice and sentiment condition, provide possible selection for protecting own hearing and health.
2, take full advantage of the hardware and software platform of existing mobile portable equipment, test macro is built conveniently, and cost is low, makes the user can constantly understand acoustic situations in the own usual life.
3, owing to can take full advantage of existing mobile portable equipment, by terminal-server end (C/S) pattern, can take full advantage of all monitoring resource ambient sound situations, reduce the whole cost of measuring larger regional voice and sentiment condition, realize detecting more accurately the voice and sentiment condition in larger zone.
4, peculiar flexibly subscriber authorisation pattern can make and authorize the terminal use of uploading data to obtain the larger regional acoustic situations information in place, and the terminal use who more pays attention to individual privacy also can obtain own sound characteristics information on every side in larger practicality scope.
Description of drawings
Fig. 1 is the structure principle chart of the acoustic signal processing system for mobile portable equipment of the present invention;
Fig. 2 is the structure principle chart of the terminal signaling processing module of the acoustic signal processing system for mobile portable equipment of the present invention;
Fig. 3 is the structure principle chart of the server end signal processing module of the acoustic signal processing system for mobile portable equipment of the present invention;
Fig. 4 is the result schematic diagram that the server end of the acoustic signal processing system for mobile portable equipment of the present invention shows.
Embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar device or the device with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
Set up the acoustic signal processing system for mobile portable equipment of the present invention according to Fig. 1, this treatment system comprises: terminal processes subsystem 1 and server end processing subsystem 2.
Terminal processes subsystem 1 comprises acoustical signal acquisition module 3, pretreatment module 4, terminal signaling processing module 5, terminal display module 6, terminal data storage module 7, terminal data merges/resolves module 8, end message module 9, communication module 10 and terminal calibration module 11, wherein, the output of acoustical signal acquisition module 3 links to each other with the input of pretreatment module 4, the output of pretreatment module 4 links to each other with the input of terminal data storage module 7 with terminal signaling processing module 5, the output of terminal signaling processing module 5 and terminal data storage module 7, terminal display module 6, the input that terminal data merges/resolve module 8 links to each other, the output that terminal data merges/resolve module 8 links to each other with the input of communication module 10, the output of end message module 9 merges/resolve module 8 with terminal data input links to each other, and the output of terminal calibration module 11 links to each other with the input of pretreatment module 4;
Server-side processes subsystem 2 comprises that servers' data merges/resolve module 12, server end signal processing module 13, server end display module 14, server end calibration module 15, GIS-Geographic Information System module 16 and servers' data storage module 17, wherein, servers' data merges/resolves module 12, the output of server end calibration module 15 and GIS-Geographic Information System module 16 links to each other with the input of server end signal processing module 13 respectively, and output and the servers' data of server end signal processing module 13 merge/resolve module 12, server end display module 14 links to each other respectively with the input of servers' data storage module 17;
Wherein, the communication module 10 of terminal subsystem 1 merges/resolves module 12 with the servers' data of server-side processes subsystem 2 and is connected.
As can be seen from Figure 2, terminal signaling processing module 5 comprises time weighted module 18, special weighted module 19, frequency weighted module 20, energy computing module 21 and octave analysis module 22, and is in parallel with octave analysis module 22 after time weighted module 18, special weighted module 19, frequency weighted module 20 and energy computing module 21 are connected successively.
As can be seen from Figure 3, server end signal processing module 13 comprises acoustic pressure prediction module 23, the special data processing ﹠amp that is in series; Warning module 24 and data compressing module 25.
Mobile portable equipment should have microphone, computing unit and display unit at least, does not possess the function that can only realize terminal processes subsystem 1 of communication function, and the repertoire of the present invention of realizing with communication function.Here the mobile portable equipment of mentioning can include but not limited to: mobile phone, pocket pc, panel computer, personal digital assistant, music and video player etc.
The present invention also provides a kind of acoustical signal processing method for mobile portable equipment, may further comprise the steps:
S1. from terminal use's environmental sound signal, extracted terminal use's local sound characteristics index by terminal processes subsystem 1, and be uploaded to server-side processes subsystem 2;
S2. obtain regional sound characteristics index by server-side processes subsystem 2, calculate terminal sound characteristics index about the terminal use in conjunction with the local sound characteristics index that receives, draw out spatial noise distribution map about the terminal use according to terminal sound characteristics index.
Among the step S1, terminal processes subsystem 1 utilizes mobile portable equipment hardware and software platform to finish collection, analysis and storage work to the local acoustical signal of terminal use, allows and communication condition provides data sharing also can accept the larger regional acoustic performance performance data that the server end computing obtains for obtaining wider acoustical signal characteristic at the partial data end that uploads onto the server under allowing at subscriber authorisation simultaneously.
Acoustical signal acquisition module 3 utilizes the microphone hardware of mobile portable equipment and corresponding driver to finish collecting work to the terminal surrounding voice signal.Consider that the microphone model of using in the present mobile portable equipment is different and use microphone array, can gather acoustical signal by control signal selection work microphone, thereby the voice signal that collects is sent to pretreatment module 4.
Pretreatment module 4 is finished following three work: one, different according to the model of using microphone in the various mobile portable equipment, sensitivity and frequency characteristic according to microphone compensate and revise the voice signal that collects, and form the preliminary treatment acoustical signal and send terminal signaling processing module 5 to carry out computing; Two, according to user control signal the original acoustical signal that gathers is compressed, and will compress afterwards acoustical signal and send terminal data storage module 7 to and store; Three, the calibrating signal that provides according to the terminal calibration module is set calibration data to terminal processes subsystem 1.
5 effects of terminal signaling processing module are the preliminary treatment acoustical signal of input to be carried out required various computings according to user control signal draw local sound characteristics index, these operation results can be preserved by the terminal data storage module, by terminal display module 6 result is shown, also can send to terminal data and merge/resolve module 8 and do further data and process.
The specific descriptions of terminal signaling processing module 5 as shown in Figure 2, comprise following processing module: octave analysis module 22 is carried out the octave computing according to the preliminary treatment acoustical signal, and result exported as the part of the local sound characteristics index of computing, wherein the analytic process of octave analysis module 22 and method can be with reference to IEC1260:1995 standard (International Electrotechnical Commission 1260, No. 1260 standard of International Electrotechnical Commission nineteen ninety-five) carries out, but be not restricted to this standard, realize 1,1/3,1/6,1/12,1/24,1/48,1/96 octave and FFT spectrum analysis.Time weighted module 18, frequency weighted module 20 and energy computing module 21 are with reference to IEC61672-1 (InternationalElectrotechnical Commission 61672-1, the 61672-1 of International Electrotechnical Commission standard) carries out, but be not restricted to this standard, comprise among the discrete data result 49 who obtains: instantaneous sound pressure level L
p, continuous equivalent sound pressure level L
Eq, sound exposes a level L
Se, maximum sound pressure level L
Max, minimal sound pressure levels L
MinDeng, also will export as another part of the local sound characteristics index of computing.
For example calculating the continuous equivalent sound pressure level L of T time A weighted
AeqTThe time, adopt following formula to calculate:
Wherein: ξ represents integration variable, and T represents average time, P
A(ξ) expression is through the instantaneous sound pressure of A weighted, p
0The expression reference sound pressure.
Special weighted module 19 is to consider the module that compensates according to user's special requirement.For example when using MP3, MP4 or mobile phone to listen to the music; in the time of just can investigating comparatively accurately earphone music playing acoustic pressure this moment size according to the dissimilar type that uses earphone; when using In-Ear Headphones; need to consider to add IEC60711 (International Electrotechnical Commission 60711; No. 60711 standard of International Electrotechnical Commission) characteristic of artificial ear is to accurately reflecting the size that earphone plays sound at people's ear; provide user's suggestion, the protection hearing user.The characteristic that just needs to consider to add IEC60318 (International Electrotechnical Commission 60318, No. 60318 standard of International Electrotechnical Commission) artificial ear with should use the headphone music playing time has been investigated the size of music playing this moment.
Terminal display module 6 utilizes the display screen in the mobile portable equipment to show local sound characteristics index and provide accordingly the user and uses suggestion, protection user's hearing.Authorize under permission and the communication condition permission the terminal use, can also show from the sound characteristics index in the larger zone of terminal surrounding that server end sends back.
Terminal data storage module 7 utilizes the storage medium in the mobile portable equipment, stores control signal according to the user and selects compressing rear acoustical signal and the sound characteristics result is preserved.
It is to authorize under permission and the communication condition permission the terminal use that terminal data merges/resolve module 8, finish uploading fusion and the packing of local sound characteristics index and terminal location and temporal information, simultaneously to showing from resolving with the passback data of server end and sending the sound characteristics index in the larger zone of terminal surrounding to terminal display module 6.
End message module 9 is to authorize under permission and the communication condition permission the terminal use, utilize the existing hardware resource of mobile portable equipment, for example global location navigation system GPS will this moment the position signalling of terminal and temporal information give terminal data and merge/resolve module 8.
Communication module 10 is to authorize under permission and the communication condition permission the terminal use, utilizes the existing various communications of mobile portable equipment and the bi-directional work that data-transformation facility is finished terminal data and servers' data.
Terminal calibration module 11 is carried out the sound measurement calibration according to calibrating signal to terminal processes subsystem 1, and it can be measured sound more accurately.Calibration steps can be diversified, wherein a kind of the use meets IEC60942 (International Electrotechnical Commission 60942, No. 60942 standard of International Electrotechnical Commission) sound source of standard, make the microphone of its aligning equipment send the standard voice that standard voice for example sends 94dB1kHz, calibrating terminal processing subsystem 1 makes the instantaneous sound pressure level L in its local sound characteristics index
pGet final product with the standard source index is consistent.Consider practicality and feasibility, can do this kind calibration for a model machine of the mobile portable equipment of same model by mobile portable equipment vendors or third party, and calibration data is distributed on the net, the terminal use downloads use voluntarily by this model.
Among the step S2, server-side processes subsystem 2 mainly unpacks from each and is positioned at the information that the diverse location terminal is uploaded, on the basis of these data, merge GIS data and carry out more accurately acoustic performance prediction, thus be built into one more comprehensively, the acoustic performance distribution map in larger zone is used for showing, store and passback is ready to share own local data terminal use.What pay particular attention to is owing to individual private informations such as the position that the terminal use need to be provided, temporal informations, 2 of server-side processes modules just can be accepted user data and return result of calculation under subscriber authorisation permission and communication condition permission, and uploading data also will can not obtain the larger regional acoustic performance result of calculation that service end returns if certain terminal has been selected not finally.
Servers' data merges/resolve module 12 to be finished the task that unpacks of each terminal use's uploading data and the packing compression duty of server end final calculation result.
The acoustic intelligence that server count end signal processing module 13 mainly provides according to the various discrete terminal, in conjunction with server end calibration module 15 and GIS-Geographic Information System module 16, the sound characteristics of finishing each larger zone, terminal use place merges and prediction.And return to servers' data and merge/resolve module 12.
As shown in Figure 3, the sound field characteristic that acoustic pressure prediction module 23 in the server count end signal processing module 13 is namely finished above-mentioned larger zone merges and the work of predicting, computational methods are with reference to ISO3891 (International Organization for Standardization 3891, No. 3891 standard of International Standards Organization) and ISO9613-1 (International Organization forStandardization 9613-1, the 9613-1 of International Standards Organization standard) but be not restricted to this class standard.Special data is processed and warning module 24 can be according to the regional acoustic performance result who calculates according to the thresholding early warning high sound pressure zone of setting before, play the effect of Real-Time Monitoring and all kinds of disasters of early warning, simultaneously can orient concrete generation high sound pressure region according to the burst similar shot of high sound pressure signal data and place temporal information that the user provides, finish social event and monitoring and early warning, and with these deal with data 25 packings are compressed into server end zone acoustical signal characteristic packed data and send to servers' data memory module 17 and preserve through data compressing module, the regional acoustical signal performance data of server end that just will comprise complete information simultaneously directly sends to server end display module 14 and shows.Notice that the terminal sound characteristics data that the terminal use can be paid close attention to this moment return to the terminal use through Data-Link.
Server end display module 14 shows that in conjunction with geographical characteristic information service end result of calculation is regional sound characteristics index, the final spatial noise distribution map that forms as shown in Figure 4, each local noise sound according to measuring is painted with different colours on the numerical map basis in a zone, can find out the distribution situation of noise in the zone on the color post on the right, the noise at place, river is less among Fig. 4 describes about 40dB (A) with blueness, and the residential block is with the orange 80dB (A) that described.
Server end calibration module 15 is to utilize existing social public resource, provide the acoustic intelligence that reliably distributes accurately such as standard noise measuring station etc. for whole measuring system, this module relies on the sound of accurate specialty to gather and analytical system, acoustical signal is on every side measured accurately and these data are back to server end signal processing module 13 make whole prediction more accurate for it in these place, system for accurately testing positions calibration acoustical signal data.
GIS-Geographic Information System information 16 provides GIS data, makes it predict more accurately acoustic pressure according to different topography and geomorphologies and above-ground structures.
The preservation of servers' data storage module 17 completion service device end regions acoustical signal characteristic packed datas.
It should be noted that at last: above embodiment is only in order to illustrate the present invention and unrestricted technical scheme described in the invention; Therefore, although this specification has been described in detail the present invention with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention; And all do not break away from technical scheme and the improvement thereof of the spirit and scope of invention, and it all should be encompassed in the middle of the claim scope of the present invention.
Claims (9)
1. acoustic signal processing system that is used for mobile portable equipment is characterized in that: comprise terminal processes subsystem and server end processing subsystem,
Described terminal processes subsystem comprises the acoustical signal acquisition module, pretreatment module, the terminal signaling processing module, the terminal display module, the terminal data storage module, terminal data merges/resolves module, the end message module, communication module and terminal calibration module, wherein, the output of described acoustical signal acquisition module links to each other with the input of described pretreatment module, the output of described pretreatment module links to each other with the input of described terminal data storage module and described terminal signaling processing module, the output of described terminal signaling processing module and described terminal data storage module, described terminal display module, the input that described terminal data merges/resolve module links to each other, the output that described terminal data merges/resolve module links to each other with the input of described communication module, the output of described end message module links to each other with the input that described terminal data merges/resolve module, and the output of described terminal calibration module links to each other with the input of described pretreatment module;
Described server-side processes subsystem comprises that servers' data merges/resolve module, the server end signal processing module, the server end display module, the server end calibration module, GIS-Geographic Information System module and servers' data storage module, wherein, described servers' data merges/resolves module, the output of described server end calibration module and described GIS-Geographic Information System module links to each other with the input of described server end signal processing module respectively, and the output of described server end signal processing module and described servers' data merge/resolve module, the input of described server end display module and described servers' data storage module links to each other respectively;
Wherein, the described communication module of described terminal processes subsystem merges/resolves module with the described servers' data of described server-side processes subsystem and is connected.
2. the acoustic signal processing system for mobile portable equipment according to claim 1, it is characterized in that: described terminal signaling processing module comprises time weighted module, special weighted module, frequency weighted module, energy computing module and octave analysis module, and is in parallel with described octave analysis module after described time weighted module, special weighted module, frequency weighted module and energy computing module are connected successively.
3. the acoustic signal processing system for mobile portable equipment according to claim 1 is characterized in that: described server end signal processing module comprises that the acoustic pressure prediction module, the special data that are in series process ﹠amp; Warning module and data compressing module.
4. the acoustic signal processing system for mobile portable equipment according to claim 1, it is characterized in that: mobile portable equipment comprises mobile phone, pocket pc, panel computer, personal digital assistant, music and video player.
5. the processing method of the acoustic signal processing system for mobile portable equipment claimed in claim 1 is characterized in that, may further comprise the steps:
S1. from terminal use's environmental sound signal, extracted terminal use's local sound characteristics index by the terminal processes subsystem, and be uploaded to the server-side processes subsystem;
S2. obtain regional sound characteristics index by described server-side processes subsystem, calculate terminal sound characteristics index about described terminal use in conjunction with the described local sound characteristics index that receives, draw out spatial noise distribution map about described terminal use according to described terminal sound characteristics index.
6. the processing method of the acoustic signal processing system for mobile portable equipment according to claim 5, it is characterized in that: among the described step S1, described terminal processes subsystem is to utilize mobile portable equipment hardware and software platform to finish collection, analysis and storage work to the local acoustical signal of terminal use, allow and communication condition provides data sharing also can accept the larger regional acoustic performance performance data that the server end computing obtains for obtaining wider acoustical signal characteristic at the partial data end that uploads onto the server under allowing at subscriber authorisation simultaneously, may further comprise the steps:
In the acoustical signal acquisition module, utilize the microphone hardware of mobile portable equipment and corresponding driver to finish collecting work to the terminal surrounding voice signal;
In pretreatment module, different according to the model of using microphone in the various mobile portable equipment, sensitivity and frequency characteristic according to microphone compensate and revise the voice signal that collects, and form the preliminary treatment acoustical signal and send the terminal signaling processing module to carry out computing; According to user control signal the original acoustical signal that gathers is compressed, and will compress afterwards acoustical signal and send the terminal data storage module to and store; According to the calibrating signal that the terminal calibration module provides the terminal processes subsystem is set calibration data;
On the preliminary treatment acoustical signal of input is carried out computing according to user control signal and drawn local sound characteristics index in the terminal signaling processing module, preserve, the result shown or send to terminal data and merge/resolve module by the terminal display module and do further data and process by the terminal data storage module;
In the terminal display module, utilize the display screen in the mobile portable equipment to show local sound characteristics index;
In the terminal data storage module, utilize the storage medium in the mobile portable equipment, store control signal according to the user and select compressing rear acoustical signal and the sound characteristics result is preserved;
Merge at terminal data/resolve in the module and authorize under permission and the communication condition permission the terminal use, finish uploading local local sound characteristics index and fusion and the packing of terminal location and temporal information, show resolving from the passback data of server end and sending the terminal sound characteristics index in the larger zone of terminal surrounding to described terminal display module simultaneously;
In the end message module the terminal use authorize allow and the communication condition permission under, utilize the existing hardware resource of mobile portable equipment, position signalling and the temporal information of terminal send terminal data to and merge/resolve module with this moment;
In communication module, authorize under permission and the communication condition permission the terminal use, finish the bi-directional work of terminal data and servers' data;
According to calibrating signal the terminal processes subsystem is carried out the sound measurement calibration by the terminal calibration module, it can be measured sound more accurately.
7. the processing method of the acoustic signal processing system for mobile portable equipment according to claim 6, it is characterized in that: described step S1 also is included in the octave analysis module of described terminal signaling processing module and carries out the octave computing according to the preliminary treatment acoustical signal, and result exported as the local sound characteristics index of computing, wherein the octave analysis module is used for realizing 1,1/3,1/6,1/12,1/24,1/48,1/96 octave and FFT spectrum analysis, time weighted module, frequency weighted module and energy computing module are with reference to IEC61672-1(International Electrotechnical Commission61672-1, the 61672-1 of International Electrotechnical Commission standard) carries out the sound characteristics discrete data result who obtains, and join in the described local sound characteristics index and export, special weighted module is used for according to user's special requirement described local sound characteristics index being compensated.
8. the processing method of the acoustic signal processing system for mobile portable equipment according to claim 5, it is characterized in that: among the described step S2, described server-side processes subsystem unpacks from each and is positioned at the information that the diverse location terminal is uploaded, and may further comprise the steps:
Merge at servers' data/resolve and finish in the module the task that unpacks of each terminal use's uploading data and the packing compression duty of server end final calculation result;
The acoustic intelligence that in server count end signal processing module, provides according to the various discrete terminal, in conjunction with server end calibration module and GIS-Geographic Information System module, finish the sound characteristics in each larger zone, terminal use place is merged and prediction, and return to servers' data and merge/resolve module;
Show in server end display module calmodulin binding domain CaM sound characteristics index and geographic properties information;
In the server end calibration module, utilize existing social public resource, comprise the standard noise measuring station, for whole measuring system provides the acoustic intelligence that reliably distributes accurately, this module relies on the sound of accurate specialty to gather and analytical system, acoustical signal is on every side measured accurately and these data are back to the server end signal processing module make whole prediction more accurate for it in these place, system for accurately testing positions calibration acoustical signal data;
In the GIS-Geographic Information System module, provide GIS data, make it predict more accurately acoustic pressure according to different topography and geomorphologies and above-ground structures;
The preservation of completion service device end regions acoustical signal characteristic packed data in the servers' data storage module.
9. the processing method of the acoustic signal processing system for mobile portable equipment according to claim 8, it is characterized in that: described step S2 comprises that also the acoustic pressure prediction module in the described server end signal processing module finishes the sound field characteristic in described larger zone and merge work with prediction, special data is processed and warning module can be according to the regional acoustic performance result who calculates according to the thresholding early warning high sound pressure zone of setting before, play the effect of Real-Time Monitoring and all kinds of disasters of early warning, simultaneously can orient concrete generation high sound pressure region according to burst high sound pressure signal data and place temporal information that the user provides, finish social event and monitoring and early warning, and with these deal with data packing is compressed into server end zone acoustical signal characteristic packed data and sends to the servers' data memory module and preserve through data compressing module, while just will comprise that the server end zone acoustical signal performance data of complete information directly sends to the server end display module and shows, and the data that the terminal use pays close attention to are returned to the terminal use through Data-Link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110032687.3A CN102158470B (en) | 2011-01-30 | 2011-01-30 | Acoustic signal processing system for mobile portable device and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110032687.3A CN102158470B (en) | 2011-01-30 | 2011-01-30 | Acoustic signal processing system for mobile portable device and processing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102158470A CN102158470A (en) | 2011-08-17 |
| CN102158470B true CN102158470B (en) | 2013-10-16 |
Family
ID=44439655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110032687.3A Expired - Fee Related CN102158470B (en) | 2011-01-30 | 2011-01-30 | Acoustic signal processing system for mobile portable device and processing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102158470B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104581535B (en) * | 2015-01-26 | 2019-06-18 | 深圳市冠旭电子股份有限公司 | A kind of earphone noise-reduction method and device |
| CN106961409B (en) * | 2016-01-08 | 2020-12-04 | 阿里巴巴集团控股有限公司 | Abnormal operation behavior identification method and device |
| US9940930B1 (en) * | 2016-12-07 | 2018-04-10 | Google Llc | Securing audio data |
| CN110046676B (en) * | 2019-04-26 | 2021-08-03 | 厦门大学 | Ocean engineering signal automatic extraction method based on sound exposure level |
| CN111710347B (en) * | 2020-04-24 | 2023-12-05 | 中科新悦（苏州）科技有限公司 | Audio data analysis method, electronic device and storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101032427A (en) * | 2007-04-27 | 2007-09-12 | 周钷 | Digital-signal intelligent monitoring method and application system thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7986790B2 (en) * | 2006-03-14 | 2011-07-26 | Starkey Laboratories, Inc. | System for evaluating hearing assistance device settings using detected sound environment |
-
2011
- 2011-01-30 CN CN201110032687.3A patent/CN102158470B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101032427A (en) * | 2007-04-27 | 2007-09-12 | 周钷 | Digital-signal intelligent monitoring method and application system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102158470A (en) | 2011-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Rana et al. | Ear-phone: an end-to-end participatory urban noise mapping system | |
| CN102158470B (en) | Acoustic signal processing system for mobile portable device and processing method thereof | |
| Aumond et al. | A study of the accuracy of mobile technology for measuring urban noise pollution in large scale participatory sensing campaigns | |
| Kanjo | Noisespy: A real-time mobile phone platform for urban noise monitoring and mapping | |
| Puyana-Romero et al. | Interactive soundscapes: 360-video based immersive virtual reality in a tool for the participatory acoustic environment evaluation of urban areas | |
| Li et al. | Participatory soundscape sensing | |
| CN107027023B (en) | Based on the VoIP of neural network without reference video communication quality method for objectively evaluating | |
| Grubeša et al. | Mobile crowdsensing accuracy for noise mapping in smart cities | |
| CN104580311A (en) | Internet of Things system for monitoring and controlling indoor environment or in-vehicle environment and monitoring and controlling method of Internet of Things system | |
| Bartalucci et al. | Design of a prototype of a smart noise monitoring system | |
| CN103616071B (en) | Patch near field acoustic holography-sound quality objective parameter distributed in three dimensions method for visualizing | |
| CN102499815A (en) | Device for assisting deaf people to perceive environmental sound and method | |
| Xie et al. | Research and development of sound quality in portable testing and evaluation system based on self-adaptive neural network | |
| De Coensel et al. | Smart sound monitoring for sound event detection and characterization | |
| Zappatore et al. | Mobile Crowd Sensing-based noise monitoring as a way to improve learning quality on acoustics | |
| CN107170468A (en) | A kind of multichannel audio quality evaluating method based on two-layer model | |
| CN105841802A (en) | Environmental noise monitoring system based on Android embedded platform | |
| Paulo et al. | Continuos sound analysis in urban environments supported by FIWARE platform | |
| Zimmerman et al. | Monitoring residential noise for prospective home owners and renters | |
| Barnard et al. | Evaluation of crowd noise levels during college football games | |
| Mariscal-Ramirez et al. | A new algorithm to monitor noise pollution adapted to resource-constrained devices | |
| Dutilleux et al. | Comparing sound emergence and sound pressure level as predictors of short-term annoyance from wind turbine noise | |
| Wei et al. | Urban environmental sound monitoring network based on combination of mobile and stationary nodes | |
| CN201667717U (en) | Dial testing terminal device with timing function of mobile communication voice assessment system | |
| Can | Dynamic approaches for the characterization and mitigation of urban sound environments |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20150130 |
|
| EXPY | Termination of patent right or utility model |