CN100533964C - Output volume improving device and method for loudhailer of mobile communication terminal - Google Patents
Output volume improving device and method for loudhailer of mobile communication terminal Download PDFInfo
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- CN100533964C CN100533964C CNB2005101028096A CN200510102809A CN100533964C CN 100533964 C CN100533964 C CN 100533964C CN B2005101028096 A CNB2005101028096 A CN B2005101028096A CN 200510102809 A CN200510102809 A CN 200510102809A CN 100533964 C CN100533964 C CN 100533964C
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
- H03G3/20—Automatic control
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
- H03G3/002—Control of digital or coded signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
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- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
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Abstract
The invention relates to an output volume improving device and method for loudhailer of mobile communication terminal. The said device includes: an audio output portion, using the levels controlled by the established band types to output the output audio signal and regulation source signal of the mobile communication terminal; a control portion, controlling and monitoring the audio output portion to output the audio signal and regulation source signal for improving the volume by the level controlled by the established band categories; and an audio detection portion, for contemporarily inputting the audio signal and using the established band categories to detect the volume levels and adds up them to the control portion. The said method includes: a beginning step, a source step, a detection step, an enlarging step and an attenuation step. The invention enables the output audible signals of the mobile communication terminal to output in all the audio bands by a certain volume, which can improve the sound quality of the audible signals output from the mobile communication terminals.
Description
Technical field
The present invention relates to mobile communication terminal, especially a kind of loud speaker output volume improving device and method of mobile communication terminal.
Background technology
Mobile communication terminal (MS:MOBILE STATION) moves freely in the coverage (SERVICE AREA) of corresponding base station (the RAN:RADIO ACCESS NETWORK) formation of the system that adds login, the communication path of setting down via supervision, control and the exchange (SWITCHING) of mobile switching centre (MSC:MOBILE SWITCHING CENTER) is also communicated by letter with the other side at once whenever and wherever possible, is the radio communication device at a kind of individual tip of directly carrying and moving.
The time less that described mobile communication terminal (MS) uses in practical communication for making the low utilization rate that improves described mobile communication terminal (MS) and the application in the real life, is continually developed out the value-added service of multiple mobile communication terminal recently.
The service that described value-added service has the mobile communication service provider exploitation to provide, and the mobile communication terminal manufacturer is provided by the service that provides.As an example, the service that manufacturer's exploitation provides has: camera, bluetooth, WLAN (wireless local area network), telephone directory, recreation, MP3, TV reception, calculator, calendar or the like; The service that mobile communication service provider exploitation provides has: literal and image message, game on line, wireless Internet, cable us for confirmation or the like.Described value-added service has benefited from development of wireless communication devices and continually develops the function that makes new advances.
Along with giving multimedia function in the mobile communication terminal, functions such as image communication, MP3, TV reception, broadcast reception need higher audio signal tonequality, in the tone quality improving of audio signal, particularly importantly in all frequency bands, amplify output audio signal with certain rank.
Therefore, need develop the relevant technology of a kind of audio signal, the audio signal of exporting in the loud speaker of mobile communication terminal is exported with certain rank in all voiced bands.
The speaker volume way of output to mobile communication terminal of the prior art describes with reference to the accompanying drawings.
Fig. 1 is the functional structure chart of the audio signal output device of mobile communication terminal loud speaker of the prior art.
The audio signal output device of 1 pair of mobile communication terminal loud speaker of the prior art describes with reference to the accompanying drawings.As shown in the figure, under the control action of the control part 10 in mobile communication terminal, 20 pairs of corresponding audio signals of coding and decoding portion decode (DECODING) handle and output.
Audio frequency (AUDIO) signal of output will output to speaker portion 30 in the described coding and decoding portion 20, and described speaker portion 30 is the audio sound signal that can the listen line output of going forward side by side with the circuit audio conversion of signals.
Described speaker portion 30 is made of following works substantially, the circuit audio conversion of signals is being the audio signal that can listen and the loud speaker of output, and when being used for fixing described loud speaker, described works is empathized the audio signal of output and is regulated the audio frequency outbound course.
When not using described works, with the audio signal of output based on the characteristic of described loud speaker; When using described works, the then size by described works, apperance, material etc. and output improves sympathetic response characteristic and frequency particular audio signal.
When changing the tonequality characteristic if need the structure of the described works of change, time that needs are more and expense, simultaneously, the works structure of the shape correspondence of each loud speaker also has nothing in common with each other, thereby can not carry out unified application, will be more difficult in the mobile communication terminal that big or small and volume are limited particularly.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the object of the present invention is to provide a kind of loud speaker output volume improving device and method of mobile communication terminal, in the present invention, receive the audio signal of exporting in the loud speaker of mobile communication terminal, and be divided into the described audio signal of each frequency range analysis, when being judged as the benchmark rank when above, will amplify the gain of control coding and decoding filter section (CODEC FILTER); When being judged as the benchmark rank when following, the then gain of the described coding and decoding filter section of decay control, thus export the audio frequency earcon of certain volume at all voiced bands.
In order to achieve the above object, the loud speaker output volume improving device of the mobile communication terminal among the present invention, include following several sections: audio output part, it is with the audio signal and adjusting source (source) signal of rank (LEVEL) the output mobile communication terminal output of set band class control; Control part, be used to control and monitor that described audio output part is with the rank output audio signal of set band class control be used for the adjusting source signal of volume improving, this control part will be divided into the detected volume rank of set frequency band rank and compare with corresponding benchmark rank, when detected volume rank during less than corresponding benchmark rank, with amplifying the gain of the coding and decoding filter section of the described audio output part of control, so that the output signal of frequency band reaches the benchmark rank; When detected volume rank during, with the gain of the coding and decoding filter section of the described audio output part of decay control, so that the output signal of frequency band reaches the benchmark rank greater than corresponding benchmark rank; Audio detection portion when being used to receive the audio signal of described audio output part output, detecting the volume rank of this audio signal and outputs it to described control part with set band class.
Described audio output part comprises:
Coding and decoding source portion under the control action of described control part, generates relevant audio signal of normal use in the mobile communication terminal or the relevant adjusting source audio signal of the volume improving line output of going forward side by side;
The coding and decoding filter section, under the control action of described control part, the magnification ratio that changes the audio signal of described coding and decoding source portion output with the set band class line output of going forward side by side;
Speaker portion is connected in described coding and decoding filter section and the audio signal of exporting is converted to earcon and exports.
Described audio detection portion comprises:
Receiver portion is used for importing the earcon that the speaker portion that detects described audio output part exports and is converted into the circuit audio signal;
Rank portion is connected in described receiver portion, and the volume rank that will detect the audio signal of output simultaneously detects and exports with set band class.
And, in order to achieve the above object, the loud speaker output volume improving method of the mobile communication terminal among the present invention, include following several steps: the beginning step, when the control part by mobile communication terminal is regulated earcon with the output of set volume in all voiced bands, will carry out initialization to the gain (GAIN) of audio output part; Source (SOURCE) step under the control action of control part, is regulated source signal in the coding and decoding source of audio output part portion (CODEC SOURCE) generation and is exported to speaker portion and import reception by receiver portion (RECEIVER); Detect step, the audio signal of importing is detected the volume rank with set band class, the benchmark rank by described control part and band class compares analysis simultaneously; Amplification procedure judges relatively whether described detected band class volume rank is lower than the benchmark rank, in the result who judges, when described detected band class volume rank is lower than the benchmark rank, it is amplified control be set at the benchmark rank; Attenuation step, judge relatively whether described detected band class volume rank is higher than the benchmark rank, in the result who judges, when described detected band class volume is superior to the benchmark rank, its decay control is set at the benchmark rank, and compensates output with the rank of each setting.
Described beginning step comprises:
Judge whether to regulate the step that earcon is exported with certain other volume of level in all voiced bands by control part;
When being adjusted to certain grade of other volume in above-mentioned steps, described control part control audio efferent carries out the step of initializing set to the gain amplifier of coding and decoding filter section.
Described source step comprises:
Described control part control coding and decoding source portion generates the step of the adjusting source signal of certain rank volume in the voiced band of 100Hz to 10KHz;
The audio frequency of the coding and decoding source portion in above-mentioned steps output is regulated source signal export to speaker portion, be converted to that the audio signal that can listen is exported and the step of the receiver portion input by audio detection portion by the initialized coding and decoding filter section that gains.
Described detection step comprises:
Cut apart the audio signal of described receiver portion input in rank portion with set band class, detect the volume rank in each frequency band and export to the step of control part;
The volume rank of the detected band class of rank portion that will be by above-mentioned steps and the step that reference category compares analysis.
Described amplification procedure comprises:
Whether judgement is lower than other step of reference level by rank portion with the output rank that band class detects the audio signal of receiver portion reception;
The result who judges in above-mentioned steps when the output rank of the audio signal that detects the reception of receiver portion is lower than set benchmark rank, will sets the magnification ratio amplification compensation that makes described band class and be controlled to be other step of reference level in the coding and decoding filter section.
Described attenuation step comprises:
Whether judgement is higher than other step of reference level by rank portion with the output rank that band class detects the audio signal of receiver portion reception;
The result who judges in above-mentioned steps when the output of the audio signal that detects the reception of receiver portion is superior to set benchmark rank, will sets the magnification ratio attenuation compensation that makes described band class and be controlled to be other step of reference level in the coding and decoding filter section;
The magnification ratio that the coding and decoding filter section of above steps is set with each band class compensates the step of output audio signal.
The present invention utilizes receiver to receive earcon of exporting in the loud speaker and the volume rank of analyzing band class, and the amplification rank of band class compensated improvement, make and amplify the gain of controlling the coding and decoding filter, thereby the earcon of exporting in the mobile communication terminal is exported with certain volume in all voiced bands being lower than other frequency band of reference level.
According to the present invention, the user of mobile communication terminal can listen and be taken at the audio signal that has certain volume in all voiced bands; And, since mobile communication terminal in all voiced bands with the earcon of the identical volume of output of frequency-independent, thereby can improve the tonequality of earcon and satisfy user's demand.
Description of drawings
Fig. 1 is the functional structure chart of the audio signal output device of mobile communication terminal loud speaker of the prior art;
Fig. 2 is the functional structure chart of the loud speaker output volume improving device of the mobile communication terminal among the present invention;
Fig. 3 is the flow chart of the loud speaker output volume improving method of the mobile communication terminal among the present invention.
The symbol description of accompanying drawing major part:
100: audio output part 110: coding and decoding source portion
120: coding and decoding filter section 130: speaker portion
200: audio detection portion 210: receiver portion
220: rank portion (LEVEL) 300: control part
Embodiment
Loud speaker output volume improving device and method to the mobile communication terminal among the present invention describes with reference to the accompanying drawings.
Fig. 2 is the functional structure chart of the loud speaker output volume improving device of the mobile communication terminal among the present invention; Fig. 3 is the flow chart of the loud speaker output volume improving method of the mobile communication terminal among the present invention.
The loud speaker output volume improving device of the mobile communication terminal among the 2 couples of the present invention describes with reference to the accompanying drawings.As shown in the figure, it includes: audio output part 100, control part 300, audio detection portion 200.
Wherein, described audio output part 100 is with the audio signal and adjusting source (source) signal of rank (LEVEL) the output mobile communication terminal output of set band class control.Described audio output part 100 includes: coding and decoding source portion 110, and it generates relevant audio signal of normal use in the mobile communication terminal or the relevant adjusting source audio signal of the volume improving line output of going forward side by side under the control action of described control part 300; Coding and decoding filter section 120, its under the control action of described control part 300, the magnification ratio that changes the audio signal of described coding and decoding source portion 110 output with the set band class line output of going forward side by side; Speaker portion 130 is connected in described coding and decoding filter section 120 and the audio signal of exporting is converted to earcon and exports.Described audio output part 100 is according to the control signal corresponding of described control part 300, the audio signal that the normal use that makes mobile communication terminal is relevant or the adjusting source signal of 100Hz to 100KHz frequency are exported with certain rank in all frequency bands, simultaneously with the set band class compensation magnification ratio of the setting line output of going forward side by side, thus the earcon of the volume that output is amplified with certain rank in all voiced bands;
Described control part 300 is connected in described audio output part 100, and its control also monitors the rank output audio signal and the adjusting source signal that be used for volume improving of described audio output part 100 with set band class control.Under the situation of normal use mobile communication terminal, 300 pairs of described audio output part 100 of described control part are controlled, make of the earcon output of corresponding audio signal with the magnification ratio of set band class setting, export with the volume of the same levels of set voiced band for making the audio signal of regulating output, the described audio output part 100 of described control part 300 controls generates and exports the adjusting source signal of 100Hz to 10KHz frequency, to be divided into the detected volume rank of set frequency band simultaneously compares with corresponding benchmark rank, when described detected volume rank during less than corresponding benchmark rank, for the output signal that makes frequency band reaches the benchmark rank, the gain of the coding and decoding filter section 120 of the described audio output part 100 of control will be amplified; When detected volume rank during, for the output signal that makes frequency band reaches the benchmark rank, with the gain of the coding and decoding filter section 120 of the described audio output part 100 of decay control greater than corresponding benchmark rank;
Described audio detection portion 200 is used to receive the audio signal of described audio output part 100 outputs of input, detects the volume rank and outputs it to described control part 300 with set band class simultaneously.Described audio detection portion 200 comprises: receiver portion 210, and the earcon that its input detects output in the speaker portion 130 of described audio output part 100 also is converted into the circuit audio signal; Rank portion 220, it is connected in described receiver portion 210, and the volume rank that will detect the audio signal of output simultaneously detects and exports with set band class.The earcon of described audio output part 100 outputs of described audio detection portion's 200 receptions is classified it with set voiced band classification of setting, detect the volume rank of described each band class simultaneously and output to described control part 300.
Loud speaker output volume improving device to the mobile communication terminal among the present invention of as above structure is described in detail with reference to the accompanying drawings.
The coding and decoding source portion 110 that described audio output part 100 is exported in the voice level signal that the control part 300 of described mobile communication terminal generates during mobile communication or value-added service are used or the source (SOURCE) of audio signal, generate and export corresponding voice level signal, the audio signal of described coding and decoding source portion 110 outputs is then exported to coding and decoding filter section 120.
Described coding and decoding filter section 120 under the control action of control part 300, the audio signal of regulating different frequency bands (BANDWIDTH) classification with different magnification ratios or gain (GAIN) line output of going forward side by side.Thus, described coding and decoding filter section 120 will be with the rank (LEVEL) that audio frequency (AUDIO) signal of described coding and decoding source portion 110 outputs is regulated in the gain (GAIN) of the frequency band category setting line output of going forward side by side.
The audio signal of described coding and decoding filter section 120 outputs will be exported to speaker portion 130, be converted to earcon and supply the user to listen to.
Described audio output part 100 is under the control action of described control part 300, after coding and decoding source portion 110 generates audio signal, carry out that rank (LEVEL) is amplified and export in coding and decoding filter section 120, but generate and the audio signal of output can't be amplified output with certain rank in all frequency bands of audio frequency in speaker portion 130.
Owing to constitute the frequency characteristic (SPECFICATION) of each structure accessory of described audio output part 100,, can't in all voiced bands of 100Hz to 10KHz scope, amplify output audio signal with certain rank as an example.Wherein, each audio accessories will make and be enlarged into normal rank with the audio signal of importing in the set special audio band and export, but the audio signal of frequency band input with other is then had the characteristic of change magnification ratio or gain (GAIN).
That is, when input has the audio frequency signal of 100Hz to 10KHz scope, normally amplify with the gain (GAIN) set or magnification ratio and export at the signal of special frequency band, the signal of other frequency band then amplifies output with other gain (GAIN).
Therefore, the user can't listen to the normal level volume of the audio signal of output, and the present invention is intended to solve above-mentioned problems of the prior art.
In all voiced bands (AUDIOBANDWIDTH), amplify output for making the audio signal of regulating output in the described audio output part 100 with certain rank (LEVEL), 300 pairs of described coding and decoding filter section 120 of described control part are controlled, initialization (INITIALIZE) magnification ratio or gain (GAIN) and be set for the benchmark rank.
Simultaneously, described control part 300 is controlled coding and decoding source portions 110 and is generated also all signals of output audio band to regulate, the adjusting audio signal that generates in the described coding and decoding source portion 110 will be exported to described coding and decoding filter section 120 and be enlarged into other gain of reference level (GAIN), output to speaker portion 130 after the amplification and will be converted to earcon and export.
Described audio detection portion 200 is converted to described earcon the circuit audio signal and outputs to rank portion 220 by the earcon that receiver portion 210 receives speaker portion 130 outputs in the described audio output part 100.Wherein, described receiver portion 210 moves as microphone (MIC:MICROPHONE) function.
Behind the earcon of described speaker portion 130 outputs of described receiver portion's 210 receptions, the circuit audio signal of correspondence is outputed to rank portion 220,220 in described rank portion is according to distributing the set band class of setting, detect input audio signal each rank (LEVEL) and it is outputed to described control part 300.
The detected audible level of set voiced band classification that described control part 300 receives to distribute from the rank portion 220 of described audio detection portion 200, and the rank and the benchmark rank of described audio signal compared.
When the audio signal rank of the special frequency band of described audio detection portion 200 inputs is higher than the benchmark rank, described control part 300 will control the rank that described audio signal is controlled in described coding and decoding filter section 120 decay; When the audio signal rank of the special frequency band of described audio detection portion 200 inputs is lower than the benchmark rank, the described coding and decoding filter section 120 of 300 controls of described control part is amplified the rank of the described audio signal of control, and compares repeatedly and controlled step in all voiced bands.
Described control part 300 will make the magnification ratio of regulating in described each voiced band (AUDIO BANDWIDTH) be set in the described coding and decoding filter section 120, make in described coding and decoding source portion 110 and to generate and the audio signal of output will or gain with the corresponding magnification ratio of the setting of each voiced band and output to speaker portion 130 after each amplifies, described speaker portion 130 will be exported with earcon simultaneously, be taken at the earcon of exporting with certain volume in all voiced bands thereby the user can be listened.
Loud speaker output volume improving method below with reference to the mobile communication terminal among 3 couples of the present invention of above-mentioned accompanying drawing describes.As shown in the figure, it comprises: beginning step, source step, detection step, amplification procedure, attenuation step.
In described beginning step, when the control part 300 by mobile communication terminal is regulated earcon with the output of set volume in all voiced bands, will carry out initialization to the gain (GAIN) of audio output part.Described beginning step comprises: judge whether to regulate the step S100 that earcon is exported with certain other volume of level by control part 300 in all voiced bands; When being adjusted to certain grade of other volume in described step S100, the gain amplifier (GAIN) of 100 pairs of coding and decoding filter section 120 of described control part 300 control audio efferents carries out the step S110 of initializing set;
In the step of described source, under the control action of the control part of described beginning step, generate the adjusting source signal and export to speaker portion 130 in the coding and decoding source of audio output part 100 one 110 (CODEC SOURCE), receive described adjusting source signal by the input of receiver portion simultaneously.Described source step comprises: described control part 300 is controlled coding and decoding source portions 100 generate the adjusting source signal of certain rank volume in the voiced band of 100Hz to 10KHz step S120; The audio frequency of the coding and decoding source portion among the step S120 110 output is regulated source signal export to speaker portion 130, be converted to that the audio signal that can listen is exported and the step S130 of receiver portion 210 inputs by audio output part 200 by the initialized coding and decoding filter section 120 that gains.
In described detection step, the audio signal of importing in the step of described source is detected the volume rank with set band class, the benchmark rank by described control part 300 and band class compares analysis simultaneously.Described detection step comprises: cut apart the audio signal of described receiver portion 210 inputs in rank portion 220 with set band class, detect the volume rank in each frequency band and export to the step S140 of control part 300; The volume rank of control part 300 detected band class that will be by described step S140 and the step S150 that reference category compares analysis.
In described amplification procedure, judge relatively whether the band class volume rank of described input is lower than the benchmark rank, in the result of described judgement, when the band class volume rank of described input is lower than the benchmark rank, it is amplified control be set at the benchmark rank.Described amplification procedure comprises: judge by control part whether be lower than other step of reference level S160 with the output rank that band class detects the audio signal of input; The result who judges in step S160 when the output rank of the audio signal that detects input is lower than set benchmark rank, will sets the magnification ratio amplification compensation that makes described frequency band and be controlled to be other step of reference level S170 in coding and decoding filter section 120.
In described attenuation step, judge relatively whether the band class volume rank of importing in the described amplification procedure is higher than the benchmark rank, the result who judges, when the band class volume of described input is superior to the benchmark rank, its decay control is set at the benchmark rank, and compensates output with the rank of each setting.Described attenuation step comprises: judge by control part whether be higher than other step of reference level S180 with the output rank that band class detects the audio signal of input; The result who judges in step S180 when the output of the audio signal that detects input is superior to set benchmark rank, will sets the magnification ratio attenuation compensation that makes described frequency band and be controlled to be other step of reference level S190 in coding and decoding filter section 120; The magnification ratio that the coding and decoding filter section 120 of above steps is set with each band class compensates the step S200 of output audio signal.
Loud speaker output volume improving method to the mobile communication terminal among the present invention of as above structure is described in detail with reference to the accompanying drawings.
The control part 300 of mobile communication terminal judges whether to regulate the volume of the audio signal of output in the audio output part 100 and export (step S100) with certain rank in all voiced band, the result who in step S100, judges, when in needs are adjusted in all voiced bands, amplifying output with certain rank, described control part 300 will be controlled 120 pairs of magnification ratios of coding and decoding filter section or initialization is carried out in gain (GAIN), have identical magnification ratio or gain (GAIN) (step S110) thereby make in all voiced bands.
As an example, the audio signal (step S120) that the described coding and decoding of the control part 300 controls source portion 110 of above-mentioned steps S110 generates and exports as 100Hz to the 10KHz scope of conditioning signal, make conditioning signal by identical the carrying out initialized coding and decoding filter section 120 and export to speaker portion 130 of magnification ratio, thereby when exporting, will receive the earcon (source step S130) of described output by the receiver portion 210 of audio detection portion 200 with earcon.
The audio signal of receiver portion 210 inputs of described source step S130 will be exported to rank portion 220, audio frequency (AUDIO) signal of input is distinguished with frequency band corresponding (BANDWIDTH) by described rank portion 220, and exports to described control part 300 (step S140) with volume rank (LEVEL) value that each band class of distinguishing detects audio signal.
The control part 300 of above-mentioned steps S140 compares with the class value of the audio signal of band class input described rank portion 220 with corresponding benchmark class value, and to analyze described audio signal rank value be higher value or smaller value (step S150).
Whether the detection class value of the frequency band of control part 300 discriminatory analysises of above-mentioned steps S150 is lower than benchmark class value (step S160), the result who judges among the step S160, when the detection class value of the frequency band of described analysis is lower than benchmark class value, described control part 300 will be controlled coding and decoding filter section 120 and amplify the magnification ratio of regulating frequency band and set (step S170).
The result who judges among the step S160, when the detection class value of the frequency band of analyzing is not less than benchmark class value, the control part 300 of step S150 judges whether the detection class value of the frequency band of described analysis is higher than benchmark class value (step S180), the result who judges among the step S180, when the detection class value of the frequency band of described analysis is higher than benchmark class value, described control part 300 will be controlled 120 decay of coding and decoding filter section and regulate the magnification ratio of frequency band and set (step S190).
Be set with the coding and decoding filter section 120 of each different magnification ratio according to band class, will with the magnification ratio that each band class is set regulate 110 inputs of described coding and decoding source portion the source audio signal gain (GAIN) and export to speaker portion 130,130 of described speaker portion are converted to the earcon line output of going forward side by side with described audio signal.
According to as above the present invention of structure, the user of described mobile communication terminal can listen and be taken at the audio signal that has certain volume in all voiced bands.
According to aforesaid the present invention, the audio frequency earcon of exporting in the mobile communication terminal will amplify output with identical volume in all frequency bands of audio signal.
And, in the present invention of as above structure and since mobile communication terminal in all voiced bands with the earcon of the identical volume of output of frequency-independent, thereby can improve the tonequality of earcon and satisfy user's demand.
Above embodiment only is used to illustrate the present invention, but not is used to limit the present invention.
Claims (11)
1. the loud speaker output volume improving device of a mobile communication terminal is characterized in that, comprises following several sections:
Audio output part, it is with the audio signal and the adjusting source signal of the volume rank output mobile communication terminal output of set band class control;
Control part, be used to control and monitor that described audio output part is with the volume rank output audio signal of set band class control be used for the adjusting source signal of volume improving, this control part will be divided into the detected volume rank of set frequency band rank and compare with corresponding benchmark rank, when detected volume rank during less than corresponding benchmark rank, with amplifying the gain of the coding and decoding filter section of the described audio output part of control, so that the output signal of frequency band reaches the benchmark rank; When detected volume rank during, with the gain of the coding and decoding filter section of the described audio output part of decay control, so that the output signal of frequency band reaches the benchmark rank greater than corresponding benchmark rank;
Audio detection portion when being used to receive the audio signal of described audio output part output, detecting the volume rank of this audio signal and outputs it to described control part with set band class.
2. the loud speaker output volume improving device of mobile communication terminal according to claim 1 is characterized in that, described audio output part comprises:
Coding and decoding source portion under the control action of described control part, generates relevant audio signal of normal use in the mobile communication terminal or the relevant adjusting source audio signal of the volume improving line output of going forward side by side;
The coding and decoding filter section, under the control action of described control part, the magnification ratio that changes the audio signal of described coding and decoding source portion output with the set band class line output of going forward side by side;
Speaker portion is connected in described coding and decoding filter section and the audio signal of exporting is converted to earcon and exports.
3. the loud speaker output volume improving device of mobile communication terminal according to claim 1 is characterized in that:
Described audio output part is according to the control signal corresponding of described control part, the audio signal that the normal use of mobile communication terminal is relevant or the adjusting source signal of 100Hz to 10KHz frequency are exported with certain rank in all frequency bands, simultaneously with the set band class compensation magnification ratio of the setting line output of going forward side by side, thus the earcon of the volume that output is amplified with certain rank in all voiced bands.
4. the loud speaker output volume improving device of mobile communication terminal according to claim 1 is characterized in that, described audio detection portion comprises:
Receiver portion is used for importing the earcon that the speaker portion that detects described audio output part exports and is converted into the circuit audio signal;
Rank portion is connected in described receiver portion, and the volume rank that will detect the audio signal of output simultaneously detects and exports with set band class.
5. the loud speaker output volume improving device of mobile communication terminal according to claim 1 is characterized in that:
Described audio detection portion receives the earcon of described audio output part output, and it is classified with set voiced band classification of setting, detects the volume rank of each band class simultaneously and outputs to described control part.
6. the loud speaker output volume improving method of a mobile communication terminal is characterized in that, comprises following several steps:
The beginning step when the control part by mobile communication terminal is regulated earcon with the output of set volume in all voiced bands, will be carried out initialization to the gain of audio output part;
The source step under the control action of control part, is regulated source signal in the generation of the coding and decoding source of audio output part portion and is exported to speaker portion and import reception by receiver portion;
Detect step, the audio signal of importing is detected the volume rank with set band class, the benchmark rank by described control part and band class compares analysis simultaneously;
Amplification procedure judges relatively whether detected band class volume rank is lower than the benchmark rank, when described detected band class volume rank is lower than the benchmark rank, it is amplified control be set at the benchmark rank;
Attenuation step, judge relatively whether detected band class volume rank is higher than the benchmark rank, when detected band class volume is superior to the benchmark rank, its decay control is set at the benchmark rank, and compensates output with the rank of described each setting.
7. the loud speaker output volume improving method of mobile communication terminal according to claim 6 is characterized in that, described beginning step comprises:
Judge whether to regulate the step that earcon is exported with certain other volume of level in all voiced bands by control part;
When being adjusted to certain grade of other volume in above-mentioned steps, described control part control audio efferent carries out the step of initializing set to the gain amplifier of coding and decoding filter section.
8. the loud speaker output volume improving method of mobile communication terminal according to claim 6 is characterized in that, described source step comprises:
Described control part control coding and decoding source portion generates the step of the adjusting source signal of certain rank volume in the voiced band of 100Hz to 10KHz;
The audio frequency of the coding and decoding source portion in above-mentioned steps output is regulated source signal export to speaker portion, be converted to that the audio signal that can listen is exported and the step of the receiver portion input by audio detection portion by the initialized coding and decoding filter section that gains.
9. the loud speaker output volume improving method of mobile communication terminal according to claim 6 is characterized in that, described detection step comprises:
Cut apart the audio signal of described receiver portion input in rank portion with set band class, detect the volume rank in each frequency band and export to the step of control part;
The volume rank of the detected band class of rank portion that will be by above-mentioned steps and the step that reference category compares analysis.
10. the loud speaker output volume improving method of mobile communication terminal according to claim 6 is characterized in that described amplification procedure comprises:
Whether judgement is lower than other step of reference level by rank portion with the output rank that band class detects the audio signal of receiver portion reception;
The result who judges in above-mentioned steps when the output rank of the audio signal that detects the reception of receiver portion is lower than set benchmark rank, will sets the magnification ratio amplification compensation that makes described band class and be controlled to be other step of reference level in the coding and decoding filter section.
11. the loud speaker output volume improving method of mobile communication terminal according to claim 6 is characterized in that described attenuation step comprises:
Whether judgement is higher than other step of reference level by rank portion with the output rank that band class detects the audio signal of receiver portion reception;
The result who judges in above-mentioned steps when the output of the audio signal that detects the reception of receiver portion is superior to set benchmark rank, will sets the magnification ratio attenuation compensation that makes described band class and be controlled to be other step of reference level in the coding and decoding filter section;
The magnification ratio that the coding and decoding filter section of above steps is set with each band class compensates the step of output audio signal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050011756A KR20060091033A (en) | 2005-02-12 | 2005-02-12 | A method and a apparatus of improving outputting audio signal level for mobile phone |
| KR1020050011756 | 2005-02-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1819450A CN1819450A (en) | 2006-08-16 |
| CN100533964C true CN100533964C (en) | 2009-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101028096A Expired - Fee Related CN100533964C (en) | 2005-02-12 | 2005-09-12 | Output volume improving device and method for loudhailer of mobile communication terminal |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20060091033A (en) |
| CN (1) | CN100533964C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937682B (en) * | 2010-09-16 | 2012-11-21 | 华为终端有限公司 | Method and device for handling receiving voice |
| CN106169025A (en) * | 2016-06-30 | 2016-11-30 | 江苏省计划生育科学技术研究所 | Deaf gene Screening analysis portable machine and deaf gene screening analyze method |
| CN106714038B (en) * | 2016-12-27 | 2019-07-26 | 维沃移动通信有限公司 | A kind of control method and mobile terminal of sound intensity |
| CN110460945A (en) * | 2018-05-08 | 2019-11-15 | 西安中兴新软件有限责任公司 | A kind of audio channel detecting circuit and detection method |
-
2005
- 2005-02-12 KR KR1020050011756A patent/KR20060091033A/en not_active Application Discontinuation
- 2005-09-12 CN CNB2005101028096A patent/CN100533964C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
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| CN1819450A (en) | 2006-08-16 |
| KR20060091033A (en) | 2006-08-17 |
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