CN102572637A - Computing system and method for audio signal - Google Patents
Computing system and method for audio signal Download PDFInfo
- Publication number
- CN102572637A CN102572637A CN2011104433681A CN201110443368A CN102572637A CN 102572637 A CN102572637 A CN 102572637A CN 2011104433681 A CN2011104433681 A CN 2011104433681A CN 201110443368 A CN201110443368 A CN 201110443368A CN 102572637 A CN102572637 A CN 102572637A
- Authority
- CN
- China
- Prior art keywords
- module
- value
- coordinate
- signal
- voice input
- 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.)
- Withdrawn
Links
Images
Landscapes
- Circuits Of Receivers In General (AREA)
Abstract
The invention provides a computing system and method for an audio signal. The method comprises the following steps of: performing a detection algorithm on the audio signal, adding minimum coordinates serving as reference values to obtain a comparison value, comparing the comparison value with other x coordinates, and selecting x coordinates serving as reference values for comparing with an accumulated value once again when the difference value between the comparison value and the x coordinates is larger than a threshold value, wherein each high point in a sound frame is provided with a corresponding x coordinate; and when the difference value between the comparison value and the x coordinates is larger than the threshold value, accumulating the x coordinates instead of the reference value with the accumulated value.
Description
Technical field
The present invention relates to a kind of computing system and method for audio signal, especially about a kind of computing system and method for sound frame basic period of audio signal.
Background technology
Pitch detecting algorithm on the time domain is from the waveform of input signal change, to find out the waveform that repeats to occur, and promptly utilizes the sound waveform similar features to find out the basic cycle; Voice signal is cut into the sound frame at present; Do the pitch detecting to each sound frame, the original sound signal and the signal after the sound displacement that are about in the sound frame are made similarity relatively, when the displacement time gap equals the pitch frequencies inverse; Voice signal has maximum similarity with its displacement signal, just can obtain the basic cycle.Various algorithms are exactly the algorithm of seeking these two kinds of signal similar degree in definition on the time domain.
Prior art is to find out minimum and time little local minimum, yet the basic cycle that this method is calculated is actual twice.
Summary of the invention
The present invention solves the above-mentioned technical problem that exists in the background technology, and proposes a kind of computing system and method for audio signal.
Technical solution of the present invention is that the present invention is a kind of computing system of audio signal, and its special character is: this system comprises: sampling module, be used for choosing the x coordinate as fiducial value and accumulated value, and for the first time selected that the x coordinate is minimum x coordinate; Accumulator module is used for receiving fiducial value and the accumulated value that sampling module is exported, with fiducial value and accumulated value addition, and the output comparison value; The contrast module is used for receiving the comparison value of accumulator module output, and comparison value and all the other x coordinates are compared in regular turn, when comparison value less than matrix in maximum x coordinate, the output signal of resampling makes it choose next x coordinate replacement fiducial value and accumulated value; And, export accumulated value when comparison value in greater than matrix during maximum x coordinate figure; Computing module is used for receiving the accumulated value that comparing module is exported, and calculates the basic cycle of voice signal according to accumulated value.
Said system comprises screening module, is used for pitch point is screened.
Above-mentioned screening module keeps the pitch point that satisfies screening conditions.
Above-mentioned screening conditions are decided according to the average of pitch point y coordinate.
A kind of computational methods of audio signal, its special character is: this method comprises the following step:
1) choosing minimum x coordinate is fiducial value and accumulated value;
2) fiducial value and accumulated value addition are got comparison value; When comparison value less than matrix in maximum x coordinate, the x coordinate is invested accumulator module replaces fiducial value, when comparison value greater than matrix in maximum x coordinate; Export the signal of resampling, make it choose next x coordinate and replace fiducial value and accumulated value; And, export accumulated value when comparison value in greater than matrix during maximum x coordinate figure; Computing module is used for receiving the accumulated value that comparing module is exported, and calculates the basic cycle of voice signal according to accumulated value.
Said method comprises screening module, is used for pitch point is screened.
Above-mentioned screening module keeps the pitch point that satisfies screening conditions.
Above-mentioned screening conditions are decided according to the average of pitch point y coordinate.
Description of drawings
Fig. 1 is an embodiment of the invention block schematic diagram;
Fig. 2 is the schematic internal view of embodiment of the invention signal delivery module and signal receiving module;
Fig. 3 is an embodiment of the invention flow chart.
Wherein, 100: voice input device, 110: the voice input device control module, 130: voice input device starts module; 150: the signal delivery module, 151: the first delivery units, 152: the second delivery units, 170: voice input device is to the frequency mould; 190: trigger module, 191: the first signals, 200: audio output device, 210: the audio output device control module; 230: audio output device starts module, 250: signal receiving module, 251: the first receiving elements, 252: the second receiving elements; 270: audio output device is to frequency module, and 510: audio output device processor, 520: loudspeaker unit, 530: digital analog converter; 540: infrared receiver, 550: audio output device radio frequency chip, 570: the audio output device internal memory;
Embodiment
Referring to Fig. 1, the system of the embodiment of the invention comprises voice input device 100 and audio output device 200, and 200 of voice input device 100 and audio output devices can carry out the wireless audio signal transmission.For example, voice input device 100 can be microphone apparatus, is used for receiving outside sound, and conversion sound is wireless audio signal.For example, audio output device 200 can be loudspeaker device, is used for receiving the wireless audio signal that voice input device 100 transmits, and converts voice output into.
In an embodiment, voice input device startup module 130, signal delivery module 150, voice input device are coupled respectively to voice input device control module 110 to frequency module 170 and trigger module 190.
Trigger module 190 can be used to produce first signal 191.Voice input device starts module 130 and can be used to according to first signal 191, starts voice input device 100.That is to say that after voice input device control module 110 detected first signal 191 of trigger module 190 outputs, the order voice input device started module 130 and starts voice input device 100, and makes voice input device 100 starts.For example, trigger module 190 can be diverter switch, supplies user's operation.In addition, trigger module 190 can be button, joystick or other device, contact panel also capable of using.
Referring to Fig. 1, signal delivery module 150 is used for according to first signal 191, transmits secondary signal 301 to audio output device 200, starts audio output device 200.Detect first signal 191 of trigger module 190 outputs when voice input device control module 110 after, voice input device control module 110 command signal delivery modules 150 transmit secondary signal 301, and make audio output device 200 starts.On the other hand, when voice input device 100 was accomplished frequency with audio output device 200, signal delivery module 150 transmitted wireless audio signal 301 to audio output device 200, and receives wireless audio signal 301 by audio output device 200.
Referring to Fig. 2, signal delivery module 150 comprises first delivery unit 151 and second delivery unit 152; Signal receiving module 250 comprises first receiving element 251 and second receiving element 252.First delivery unit 151 is used for wireless transmission secondary signal 301.First receiving element 251 is used for receiving secondary signal 301.Second delivery unit 152 is used for utilizing the wireless transmission wireless audio signal 301 of selected channel to back decision frequently.Second receiving element 252 is used for utilizing the selected channel to back decision frequently to receive wireless audio signal 301.
First delivery unit 151 and first receiving element 251 can pass through infrared ray, and (Infra Red, IR) (Frequency Modulation, FM) carrier wave or other carrier wave that need not to carry out in advance frequency carry out communication for carrier wave or frequency modulation.Second delivery unit 152 and second receiving element 252 can carry out communication through radio frequency (Radio frequency) technology.Radio frequency can use 1.9GHz, 2.4GHz, 5.8GHz or other frequency range to carry out communication, but the present invention is not as limit.
In addition, according to different embodiments of the invention, first delivery unit 151 and second delivery unit, 152 alternatives are merged into a delivery unit.First receiving element 251 and second receiving element, 252 alternatives are merged into a delivery unit.And it transmits the signal alternative and comprises the signal that other prior art provides, in order to overall operation.
In addition, the information that is transmitted because of second delivery unit 152 can include the identification code of representing voice input device 100, and the information that second receiving element 252 is transmitted also can include the identification code of representing audio output device 200.So second delivery unit 152 and second receiving element 252 can be confirmed identification code each other to frequency the time, whether once carried out frequently with identification.In preferred embodiment, for example, through identification code, audio output device 200 can confirm whether be last time to voice input device 100 frequently to voice input device frequently 100 at present.If same voice input device 100, voice input device control module 110 then capable of using or audio output device control module 210 save the frequency sweep action, and continue to use selected channel last time.If not same voice input device 100 then can scan channel again.So, can reduce the action that scans channel, to save to frequently expending time in.
Voice input device is used for according to first signal 191 to frequency module 170, triggers voice input device 100 and gets into voice input device to the frequency pattern.When audio output device 200 got into audio output device to the frequency pattern because of receiving secondary signal 301, voice input device 100 and audio output device 200 carried out above-mentioned to action frequently, and the selected channel of decision.
Introduce audio output device control module 210, the audio output device that its inside comprises with the viewpoint of audio output device 200 and start module 230, signal receiving module 250 and audio output device frequency module 270.Audio output device starts module 230, signal receiving module 250 and audio output device frequency module 270 is coupled respectively to audio output device control module 210.
Audio output device starts module 230 and is used for starting audio output device 200 according to secondary signal 301.When signal receiving module 250 received secondary signal 301, audio output device control module 210 control audio output devices started module 230, made audio output device 200 starts, or made audio output device 200 return to mode of operation from standby mode.
Audio output device is used for triggering audio output device 200 according to secondary signal 301 to frequency module 270 and gets into audio output device to the frequency pattern.When signal receiving module 250 received secondary signal 301, audio output device control module 210 made audio output device trigger audio output device 200 to frequency module 270 and gets into audio output device to the frequency pattern.Then, because of voice input device 100 has got into voice input device to the frequency pattern, audio output device 200 has also got into audio output device to the frequency pattern, and voice input device 100 and audio output device 200 are carried out frequently.So after to frequency, voice input device 100 can transmit wireless audio signal 301 to audio output device 200.
In an embodiment, selected channel can keep a period of time.In voice input device 100 shutdown back a period of time, open voice input device 100 once more, then with the channel of use last time as selected channel.The visual requirements set of this retention time is for example several seconds, several minutes, several hours, a couple of days, or At All Other Times.So, under the situation of the frequent switch voice input device 100 of user, signal delivery module 150 can return back to the channel that used last time fast with signal receiving module 250, and does not need to carry out again frequency sweep, can reduce the frequency required time.
Voice input device processor 410 essence can be microprocessor, and (Micro Controller Unit MCU), can comprise voice input device control module 110 and voice input device and start module 130.Infrared transmitter 440 corresponds to first delivery unit 151.Voice input device radio frequency chip 450 can comprise second delivery unit 152 and voice input device to frequency module 170.460 on switch corresponds to trigger module 190.
In addition; Voice input device 100 can comprise voice input device internal memory 470, is used for storing the purposes such as selected channel or stored audio input unit 100 postboost retention times of parameter, the stored audio input unit radio frequency chip 450 of the program code that supplies voice input device control module 110 to read and move, temporary voice input device radio frequency chip 450.Referring to Fig. 4, audio output device 200 comprise audio output device processor 510, loudspeaker unit 520, digital analog converter (Digital to Analog Convertor, DAC) 530, infrared receiver 540 and audio output device radio frequency chip 550.
Audio output device processor 510 essence can be microprocessor, can comprise audio output device control module 210 and audio output device and start module 230.Infrared receiver 540 corresponds to first receiving element 251.Audio output device radio frequency chip 550 can comprise second receiving element 252 and audio output device to frequency module 270.
Contrast voice input device 100, audio output device 200 should include loudspeaker unit 520 and digital analog converter 530.Digital analog converter 530 is used for the digital audio and video signals that audio output device radio frequency chip 550 receives is converted into the audio signal of simulation.Loudspeaker unit 520 coupling digital analog converters 530 are used for simulated audio signal is output as sound.Likewise, audio output device 200 can comprise audio output device internal memory 570.Referring to Fig. 5, it discloses a kind of audio signal transmission method, is applicable to the wireless audio signal transmission of 200 of voice input device 100 and audio output devices, comprises:
Step S110: utilize the trigger module 190 of voice input device 100 to produce first signal 191.This step, the user can operate trigger module 190, and makes trigger module 190 produce first signal 191.
Step S120:, start voice input device 100 and trigger voice input device 100 entering voice input devices to the frequency pattern according to first signal 191.This step, after first signal 191 produced, voice input device 100 was started shooting, and got into voice input device to the frequency pattern.
Step S130: voice input device 100 transmits secondary signal 301 and supplies to start audio output device 200 and supply triggering audio output device 200 to get into audio output device to the frequency pattern according to first signal 191.This step, secondary signal 301 is sent to audio output device 200 with first communication modes.First communication modes can pass through infrared ray, and (Inffa Red, IR) (Frequency Modulation, FM) carrier wave or other carrier wave that need not to carry out in advance frequency carry out communication for carrier wave or frequency modulation.
Step S140: when voice input device 100 is accomplished frequency with audio output device 200, utilize voice input device 100 to transmit wireless audio signal 301, supply audio output device 200 to receive.This step, wireless audio signal 301 is sent to audio output device 200 with second communication modes.Second communication modes can be radio frequency (Radio frequency) transmission.
Before step S140, alternative comprises step S131: voice input device 100 is to frequency the time, and the selected channel of decision, this selected channel be the channel of last time communication use, and its voice input device internal memory capable of using 470 is record in addition.That is to say that to frequency the time, the preferential decision of voice input device 100 as selected channel, and does not scan channel with the channel that last time used separately.Thus, can save and scan time-consuming of channel institute, it can be specially adapted to the operating position of frequent switch voice input device 100.
For avoiding giving unnecessary details; Above-mentioned signal delivery module 150, signal receiving module 250, first communication modes and second communication modes only with one-way transmission as explanation; But this area common technical staff should understand; The present invention should be as limit, and 250 of signal delivery module 150 and signal receiving modules also can carry out both-way communication.
The present invention only needs the user to utilize the trigger module 190 of voice input device 100 that first signal 191 is provided substantially, for example opens the microphone switch to produce signal, and 100 of voice input devices can be started shooting and got into automatically the frequency pattern.Substantially simultaneously, audio output device 200 also can utilize 191 conversions produce through first signal secondary signal 301 to start shooting automatically and get into the frequency pattern.Therefore, the user only need open the power supply of its wireless microphone, then can be substantially open wireless loudspeaker (or loudspeaker, sound equipment or other) power supply automatically simultaneously, and accomplish automatically wireless microphone and wireless speakers between the two to frequency.Therefore, according to the embodiment of the invention, the user do not cost between heart behaviour wireless microphone and the wireless speakers to frequently, but can enjoyments need move the convenience that the radio-frequency technique that can use brings to frequency.
Other embodiment according to the present invention need the occasion of frequent switch in order to be applicable to voice input device 100 more, and the present invention's internal memory capable of using temporarily stores last used channel.The user utilizes same channel (whether also can detect is same identification code) in during setting, and Program Bypass then capable of using is again to action frequently, to save the time of the required wait of user.Promptly also comprising record audio input unit 100 accomplishes information (such as channel, identification code etc. frequently with audio output device 200; Or its combination); Before voice input device 100 and audio output device 200 are desired once more to frequency, if recognize and, then skip over once more to frequently last time to the frequency identical information.
Other embodiment according to the present invention; When voice input device 100 plans to want powered-down (or dormancy) and when not continuing to use audio output device 200; The components/steps similar capable of using with previous embodiment; Promptly utilize trigger module 190 to trigger one first shutdown signal (can similar first signal 191), with the power supply (or dormancy) of closing voice input device 100.And utilizing first shutdown signal (similar first signal 191), triggering/conversion produces second shutdown signal (similar secondary signal 301), to close audio output device 200 (or dormancy).
Other embodiment according to the present invention possibly utilize many audio output devices 200 of single audio frequency input unit 100 controls, and then above-mentioned secondary signal 301 and wireless audio signal 302 can send to these audio output devices 200 simultaneously.In addition, in different embodiment, each audio output device 200 alternative utilizes identical or different channel to come and voice input device 100 communications.
Other embodiment according to the present invention can set a period automatically to frequency the time, such as five seconds.If can't then possibly jump out accomplishing frequently in the five seconds.In certain embodiments, alternative is provided with reminding module on the voice input device 100, is coupled to voice input device control module 110, in order to notifying the user to not accomplishing frequently.Prompting mode can comprise sound/light effect, make the switch involution original position or the alternate manner of trigger module 190.
Other embodiment according to the present invention; But the identification code that voice input device 100 identifications are specific; Receive the audio output device 200 that specific label, model or out of Memory are provided with selectivity, its capable of using such as voice input device control module 110 execution identification actions.Similarly, the also alternative identification specific identification code of audio output device 200, and utilize for example audio output device control module 210 execution identification actions.
Claims (8)
1. the computing system of an audio signal, it is characterized in that: this system comprises: sampling module, be used for choosing the x coordinate as fiducial value and accumulated value, and for the first time selected that the x coordinate be minimum x coordinate; Accumulator module is used for receiving fiducial value and the accumulated value that sampling module is exported, with fiducial value and accumulated value addition, and the output comparison value; The contrast module is used for receiving the comparison value of accumulator module output, and comparison value and all the other x coordinates are compared in regular turn, when comparison value greater than matrix in maximum x coordinate, the output signal of resampling makes it choose next x coordinate replacement fiducial value and accumulated value; And, export accumulated value when comparison value in greater than matrix during maximum x coordinate figure; Computing module is used for receiving the accumulated value that comparing module is exported, and calculates the basic cycle of voice signal according to accumulated value.
2. the computing system of a kind of audio signal according to claim 1, it is characterized in that: said system comprises screening module, is used for pitch point is screened.
3. the computing system of a kind of audio signal according to claim 2 is characterized in that: said screening module keeps the pitch point that satisfies screening conditions.
4. the computing system of a kind of audio signal according to claim 1, it is characterized in that: said screening conditions are decided according to the average of pitch point y coordinate.
5. the computational methods of an audio signal, it is characterized in that: this method comprises the following step:
1) choosing minimum x coordinate is fiducial value and accumulated value;
2) fiducial value and accumulated value addition are got comparison value; When comparison value less than matrix in maximum x coordinate, the x coordinate is invested accumulator module replaces fiducial value, when comparison value greater than matrix in maximum x coordinate; Export the signal of resampling, make it choose next x coordinate and replace fiducial value and accumulated value; And, export accumulated value when comparison value in greater than matrix during maximum x coordinate figure; Computing module is used for receiving the accumulated value that comparing module is exported, and calculates the basic cycle of voice signal according to accumulated value.
6. the computational methods of a kind of audio signal according to claim 5, it is characterized in that: said method comprises screening module, is used for pitch point is screened.
7. a kind of network audio method according to claim 6 is characterized in that: said screening module keeps the pitch point that satisfies screening conditions.
8. a kind of network audio method according to claim 7 is characterized in that: said screening conditions are decided according to the average of pitch point y coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104433681A CN102572637A (en) | 2011-12-17 | 2011-12-17 | Computing system and method for audio signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104433681A CN102572637A (en) | 2011-12-17 | 2011-12-17 | Computing system and method for audio signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102572637A true CN102572637A (en) | 2012-07-11 |
Family
ID=46416891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104433681A Withdrawn CN102572637A (en) | 2011-12-17 | 2011-12-17 | Computing system and method for audio signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102572637A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004349A (en) * | 2015-06-30 | 2015-10-28 | 深圳市元征科技股份有限公司 | Step calculation method |
| CN105043410A (en) * | 2015-06-30 | 2015-11-11 | 深圳市元征科技股份有限公司 | Pedometer |
-
2011
- 2011-12-17 CN CN2011104433681A patent/CN102572637A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004349A (en) * | 2015-06-30 | 2015-10-28 | 深圳市元征科技股份有限公司 | Step calculation method |
| CN105043410A (en) * | 2015-06-30 | 2015-11-11 | 深圳市元征科技股份有限公司 | Pedometer |
| CN105043410B (en) * | 2015-06-30 | 2018-07-13 | 深圳还是威健康科技有限公司 | A kind of pedometer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100573383C (en) | Intelligent home control system based on phone and ZigBee technology | |
| US10531247B2 (en) | Internet-of-things devices and related methods for performing in-call interactions | |
| CN206021903U (en) | voice recognition remote controller | |
| CN102231229B (en) | Multifunctional remote controller and control system applying same | |
| CN108172227A (en) | Voice remote control method and device | |
| CN203193909U (en) | An ad-hoc network terminal device | |
| CN104580699A (en) | Method and device for acoustically controlling intelligent terminal in standby state | |
| WO2021088163A1 (en) | Wireless remote control method | |
| CN109584878A (en) | A kind of voice awakening method and system | |
| CN108597520A (en) | A kind of control method of Intelligent socket and Intelligent socket | |
| CN102572637A (en) | Computing system and method for audio signal | |
| CN106023566B (en) | Bluetooth remote control device, system and method based on voice recognition | |
| CN104766462A (en) | Sound wave remote control system and sound wave remote control method | |
| CN106154995A (en) | Intelligent bracelet gestural control system | |
| CN203180966U (en) | Terminal equipment used for IOT monitoring and IOT monitoring system | |
| CN112235622A (en) | Remote controller, control method and television | |
| CN102547218A (en) | Emergency site monitoring and control system | |
| CN106878785A (en) | A kind of TV with acoustic control program guide | |
| CN102413400A (en) | Audio input device, audio output device and method for transmitting audio signals therebetween | |
| CN201754299U (en) | Acoustic instruction remote control wireless transmitting device | |
| CN210052519U (en) | Voice control signal transmitting device based on mesh networking and electric appliance control system | |
| CN203287751U (en) | An indoor control device based on internet of things | |
| CN107454133B (en) | Control system and control method | |
| CN111640430A (en) | Household appliance control device based on voice recognition and household appliance | |
| CN111816181A (en) | Voice recognition calling method, system and computer readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Open date: 20120718 |