CN102810056B - Voice signal processing method and touch panel mobile phone using same - Google Patents
Voice signal processing method and touch panel mobile phone using same Download PDFInfo
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- CN102810056B CN102810056B CN201110148848.5A CN201110148848A CN102810056B CN 102810056 B CN102810056 B CN 102810056B CN 201110148848 A CN201110148848 A CN 201110148848A CN 102810056 B CN102810056 B CN 102810056B
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Abstract
The invention discloses a voice signal processing method and a touch panel mobile phone using same. The voice signal processing method comprises the steps as follows: voice signals are received; the light source brightness of a touch panel is detected; a frequency transfer function is dynamically adjusted according to the magnitude of the light source brightness; in addition, the frequency transfer treatment for the voice signals are achieved by using a frequency transfer function.
Description
Technical field
The present invention relates to a kind of voice processing technology, particularly relate to a kind of audio signal processing method of touch panel mobile phone.
Background technology
Current mobile phone on the market only has one group of fixing frequency transfer function, by the speech parameter of acoustical testing when the parameter of the frequency transfer function that this group is fixing was certification.Ge Jia mobile phone manufacturing plant all carries out shipment with the fixing speech parameter by certification.But everyone custom is different, therefore not that group speech parameter of certification can allow all users on the market all satisfaction.
User is when using mobile phone to converse, and when the mode of handheld mobile phone changes, user often can think that tonequality has also become; Especially when the contact area of mobile phone and people's cheek reduces by user, the low frequency of voice obviously can reduce because of leaking, and significantly affects communication quality.
In addition, when mobile phone communication is more of a specified duration, posture may be changed because of hand acid.And different gestures is because answering angle difference, even if the sound of first speaker, intonation or content are constant, but listener has different sense of hearing phenomenons.
How to realize a kind of audio signal processing method of touch panel mobile phone, and can use situation dynamic conditioning frequency transfer function according to mobile phone, and maintain comfortable sense of hearing quality, this is one problem to be overcome.
Summary of the invention
In view of this, the invention provides a kind of audio signal processing method and its touch panel mobile phone of application, it can solve the problem that prior art is addressed effectively.
The present invention proposes a kind of audio signal processing method of touch panel mobile phone, comprising: receive a voice signal; Detect a light-source brightness of a contact panel; According to size dynamic conditioning one frequency transfer function of described light-source brightness; And use described frequency transfer function to do frequency translation process to described voice signal.
In one embodiment of this invention, the step adjusting described frequency transfer function comprises: the size of more described light-source brightness and a predetermined luminance; And when comparative result is equal, the parameter setting described frequency transfer function is one first group of speech parameter; And when described light-source brightness is less than described predetermined luminance, the parameter setting described frequency transfer function is one second group of speech parameter; And when described light-source brightness is greater than described predetermined luminance, the parameter setting described frequency transfer function is one the 3rd group of speech parameter.
In one embodiment of this invention, the step that described voice signal does frequency translation process is comprised: detect described touch panel mobile phone and select one first dynamically-adjusting parameter relative to an angle of inclination of gravity direction; And adjust described frequency transfer function again according to described first dynamically-adjusting parameter.
The present invention reintroduces a kind of audio signal processing method of touch panel mobile phone, comprising: receive a voice signal; Detect the angle of inclination of described touch panel mobile phone relative to gravity direction; According to size dynamic conditioning one frequency transfer function at described angle of inclination; And use described frequency transfer function to do frequency translation process to described voice signal.
In one embodiment of this invention, the step adjusting described frequency transfer function comprises: the size of more described angle of inclination and a preset value; And when comparative result is equal, the parameter setting described frequency transfer function is one first group of speech parameter; And when described angle of inclination is not equal to described preset value, the parameter setting described frequency transfer function is one second group of speech parameter.
In one embodiment of this invention, the step that described voice signal does frequency translation process is comprised: the light-source brightness detecting a contact panel; One first dynamically-adjusting parameter is selected according to described light-source brightness; And adjust described frequency transfer function again according to described first dynamically-adjusting parameter.
From another angle, the present invention proposes a kind of touch panel mobile phone, comprising: a detuner, produces a voice signal; One contact panel; One proximity transducer, in order to detect a light-source brightness of described contact panel; One digital signal processor, be coupled to described detuner, described contact panel and described proximity transducer, described digital signal processor, according to size dynamic conditioning one frequency transfer function of described light-source brightness, does frequency translation process to described voice signal according to this; One digital to analog converter, is coupled to described digital signal processor, in order to convert the described voice signal after frequency translation to a simulating signal; And a receiver, be coupled to described digital to analog converter, in order to export described simulating signal.
In one embodiment of this invention, the size of the more described light-source brightness of described digital signal processor and a predetermined luminance, when comparative result is equal, the parameter setting described frequency transfer function is one first group of speech parameter; And when described light-source brightness is less than described predetermined luminance, the parameter setting described frequency transfer function is one second group of speech parameter; And when described light-source brightness is greater than described predetermined luminance, the parameter setting described frequency transfer function is one the 3rd group of speech parameter.
In one embodiment of this invention, described touch panel mobile phone also comprises: a gravity sensor, be coupled to described digital signal processor, in order to detect the angle of inclination of described touch panel mobile phone relative to gravity direction: and when described digital signal processor does frequency translation process to described voice signal, also select one first dynamically-adjusting parameter according to described angle of inclination and adjust described frequency transfer function again according to described first dynamically-adjusting parameter.
The present invention proposes again a kind of touch panel mobile phone, comprising: a detuner, produces a voice signal; One contact panel; One gravity sensor, in order to detect the angle of inclination of described touch panel mobile phone relative to gravity direction; One digital signal processor, be coupled to described detuner, described contact panel and described gravity sensor, described digital signal processor, according to size dynamic conditioning one frequency transfer function at described angle of inclination, does frequency translation process to described voice signal according to this; One digital to analog converter, is coupled to described digital signal processor, in order to convert the described voice signal after frequency translation to a simulating signal; And a receiver, be coupled to described digital to analog converter, in order to export described simulating signal.
In one embodiment of this invention, the size of the more described angle of inclination of described digital signal processor and a preset value, when comparative result is equal, the parameter setting described frequency transfer function is one first group of speech parameter; And when described angle of inclination is not equal to described preset value, the parameter setting described frequency transfer function is one second group of speech parameter.
In one embodiment of this invention, described touch panel mobile phone also comprises: a proximity transducer, be coupled to described digital signal processor, in order to detect a light-source brightness of described contact panel: and when described digital signal processor does frequency translation process to described voice signal, also select one first dynamically-adjusting parameter according to described light-source brightness and adjust described frequency transfer function again according to described first dynamically-adjusting parameter.
Based on above-mentioned, audio signal processing method of the present invention mainly designs the sensor mechanism of mobile phone with the touch panel mobile phone applying it, detect people's ear and the contact area of face for touch panel mobile phone or the angle of inclination relative to gravity direction, adjust the frequency transfer function of voice signal according to this.Thus, realize dynamic conditioning Speech processing, auto-compensation LF-response, the volume change of frequency response not only can be avoided excessive, and comfortable sense of hearing quality can be maintained, build more plentiful speech quality.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.
Accompanying drawing explanation
Figure 1A is the circuit block diagram of the touch panel mobile phone according to one embodiment of the invention.
Figure 1B is the circuit block diagram of the touch panel mobile phone according to another embodiment of the present invention.
Fig. 1 C is the circuit block diagram of the touch panel mobile phone according to another embodiment of the present invention.
Fig. 2 A be according to one embodiment of the invention mobile phone with test the number of people put schematic diagram.
Fig. 2 B is the pressure frequency response schematic diagram about global mobile system certification.
Fig. 3 and Fig. 4 be according to the embodiment of the present invention mobile phone with test the number of people put schematic diagram.
Fig. 5 is the pressure frequency response figure about Fig. 3.
Fig. 6 is the pressure frequency response figure about Fig. 4.
Fig. 7 is the audio signal processing method process flow diagram of the touch panel mobile phone according to one embodiment of the invention.
Fig. 8 is the audio signal processing method process flow diagram of the touch panel mobile phone according to another embodiment of the present invention.
Reference numeral:
100,100A, 100B, 100C: touch panel mobile phone
110: detuner
120: contact panel
130: proximity transducer
140: receiver
150: gravity sensor
201,203,205,207: curve
210: artificial ear
220: measuring instrument
501,503,505: curve
601,603,605: curve
DAC: digital to analog converter
DSP: digital signal processor
LL: light-source brightness
MIC: microphone
VA: simulating signal
VD: the voice signal after frequency translation
VI: input signal
VM: voice signal
: angle of inclination
S710 ~ S745: each step of audio signal processing method process flow diagram of the touch panel mobile phone of one embodiment of the invention
S810 ~ S847: each step of audio signal processing method process flow diagram of the touch panel mobile phone of another embodiment of the present invention
Embodiment
With detailed reference to embodiments of the invention, and the example of described embodiment is described in the accompanying drawings.In addition, all possibility parts, use the element/component of identical label to represent identical or similar portions in drawings and the embodiments.
Figure 1A is the circuit block diagram of the touch panel mobile phone according to one embodiment of the invention.Please refer to Figure 1A.Touch panel mobile phone (the touch panel phone) 100A of this embodiment can comprise detuner 110, contact panel 120, proximity transducer (proximity sensor) 130, digital signal processor DSP, digital to analog converter DAC and receiver (receiver) 140.Digital signal processor DSP can be coupled to detuner 110, contact panel 120, proximity transducer 130 and digital to analog converter DAC.Receiver 140 is coupled to digital to analog converter DAC, and can also exist between digital to analog converter DAC with receiver 140 one piece with export the relevant hardware interface of sound.Wherein digital signal processor DSP has the many groups speech parameter about frequency transfer function, and in many group speech parameters, at least one group of optimized speech parameter is the speech parameter can crossing certification.Therefore the frequency transfer function of digital signal processor DSP can do frequency translation process to voice signal VM, thus meets the demand of different users.Setting means about parameter will in describing in detail after a while.
More specifically, detuner 110 receives input signal VI and produces voice signal VM.Because the area number that face and people's ear touch contact panel 120 can have influence on the size of light-source brightness LL, and proximity transducer 130 can detect the size of the light-source brightness LL on contact panel 120.Digital signal processor DSP according to the parameter of the size dynamic conditioning frequency transfer function of light-source brightness LL, can do frequency translation process to voice signal VM according to this.Then, digital to analog converter DAC can convert the voice signal VD after frequency translation to simulating signal VA, and receiver 140 audibly exports simulating signal VA to outside again.
Figure 1B is the circuit block diagram of the touch panel mobile phone according to another embodiment of the present invention.Please refer to Figure 1B.Be similar to the framework of Figure 1A, the touch panel mobile phone 100B of this embodiment can comprise detuner 110, contact panel 120, gravity sensor (G sensor) 150, digital signal processor DSP, digital to analog converter DAC and receiver 140.Digital signal processor DSP can be coupled to detuner 110, contact panel 120, gravity sensor 150 and digital to analog converter DAC.Gravity sensor 150 can detect the angle of inclination of touch panel mobile phone 100B relative to gravity (vertically) direction.Digital signal processor DSP according to the parameter of the size dynamic conditioning frequency transfer function at angle of inclination, and can do frequency translation process to voice signal VM according to this.
It is worth mentioning that, although depict several possible kenel to touch panel mobile phone in above-described embodiment, application of the present invention is when being not restricted to this.Below lift several embodiment again so that those of ordinary skill in the art can further understand spirit of the present invention, and implement the present invention.
Fig. 1 C is the circuit block diagram of the touch panel mobile phone according to another embodiment of the present invention.Please refer to Fig. 1 C.Be similar to the framework of Figure 1A and Figure 1B, the touch panel mobile phone 100C of this embodiment can comprise detuner 110, contact panel 120, proximity transducer 130, gravity sensor 150, digital signal processor DSP, digital to analog converter DAC and receiver 140.Digital signal processor DSP can be coupled to detuner 110, contact panel 120, proximity transducer 130, gravity sensor 150 and digital to analog converter DAC.Proximity transducer 130 can detect the size of the light-source brightness LL on contact panel 120.Gravity sensor 150 can detect the angle of inclination of touch panel mobile phone 100C relative to gravity (vertically) direction.
Digital signal processor DSP first can select the parameter of a class frequency transfer function according to the size of light-source brightness LL, and then select the first dynamically-adjusting parameter according to angle of inclination, the transfer function and foundation the first dynamically-adjusting parameter is adjusted frequency, then does frequency translation process to voice signal VM.
In another embodiment, digital signal processor DSP first can select the parameter of a class frequency transfer function according to the size at angle of inclination, and then select the first dynamically-adjusting parameter according to the size of light-source brightness LL, the transfer function and foundation the first dynamically-adjusting parameter is adjusted frequency, then does frequency translation process to voice signal VM.
In another embodiment, digital signal processor DSP can select the parameter of a class frequency transfer function simultaneously according to the size at light-source brightness LL and angle of inclination, then do frequency translation process to voice signal VM.So also can reach effect similar with above-described embodiment.
Fig. 2 A be according to one embodiment of the invention mobile phone with test the number of people put schematic diagram.Design about frequency transfer function needs by the test number of people and associated test devices.Please refer to Fig. 2 A.The test number of people has artificial ear 210.In fig. 2 in order to represent the measurement for sound, show touch panel mobile phone 100 and artificial ear 210 distance between the two comparatively to exaggerate mode.Microphone MIC is had in artificial ear 210.The sound that receiver 140 sends by microphone MIC radio reception, is then resent to measuring instrument 220 via artificial ear 210.
In fact, the acoustical testing of mobile phone needs the regulation according to crossing certification to put, and the test specification crossing certification can be different because of different regions (such as Asia, Europe, America, Africa) or country variant.Angle, force that mobile phone is placed in the test number of people is defined in regulation.Therefore mobile phone is under specific putting position, and loudness (loudness) and the frequency response (frequencyresponse) of receiver must by the test specifications of certification.Such as, the test specification of 3GPP TS 26.132, but not as limit.
Fig. 2 B is the pressure frequency response schematic diagram about global mobile system (Global System for Mobile, GSM) certification.Please refer to Fig. 2 B, for the mobile phone of gsm system, curve 201 is the upper limit of GSM standard, and curve 203 is the lower limit of GSM standard.If the sound pressure curve 205 through the frequency response of design exceedes the upper limit of GSM standard, then belonging to cannot by the curve of certification.If through the sound pressure curve 207 of the frequency response of design between the upper limit of GSM standard and lower range, it is then qualified curve, therefore design the mobile phone of gsm system, one group of speech parameter about frequency transfer function at least will be had to make mobile phone can by the acoustical testing of GSM certification.
Fig. 3 and Fig. 4 be according to the embodiment of the present invention mobile phone with test the number of people put schematic diagram.Different mobile phone disposing way can have influence on volume received by the microphone in the test number of people.In figure 3, earphone portions is just adjacent to the artificial ear of the test number of people, and this mode belongs to low leakage handheld mobile phone mode.In the diagram, earphone portions departs from artificial ear a little, and this mode belongs to high-leakage handheld mobile phone mode.About mobile phone disposing way, be not limited with Fig. 3 and Fig. 4.Therefore when many groups speech parameter of design frequency transfer function, the various disposing ways of mobile phone need be considered, such as, can consider that mobile phone and human contact are to angle of inclination relative to gravity direction of the area number of contact panel or mobile phone.
Fig. 5 is the pressure frequency response figure about Fig. 3.Please merge with reference to Figure 1A, Figure 1B, Fig. 2 A, Fig. 3 and Fig. 5.First touch panel mobile phone 100 is arranged on testing jig (Simulated hand), with the string ripple signal of fixed size, frequency change is between 200Hz to 4KHz, do not carry out filtering to voice signal VM at digital signal processor DSP, measuring instrument 220 amount is to former sound pressure curve 501 as shown in Figure 5.The sound variation of curve 501 between frequency 1KHz to 2KHz is comparatively large, and especially the sound of 1.6KHz is up to 30 decibels.In order to suppress the mistake macro-energy between frequency 1KHz to 2KHz, avoiding the sound acute variation of different frequency and making sense of hearing uncomfortable, former sound pressure curve 501 can be adjusted to required wave filter (filter) frequency response, be equivalent to curve 503.Thus, aim curve 505 is equivalent to the curve 503 that former sound pressure curve 501 superposes wave filter.
Fig. 6 is the pressure frequency response figure about Fig. 4.Please merge with reference to Figure 1A, Figure 1B, Fig. 2 A, Fig. 4 and Fig. 6.First touch panel mobile phone 100 is arranged on testing jig, with the string ripple signal of fixed size, frequency change is between 200Hz to 4KHz, does not carry out filtering to voice signal VM at digital signal processor DSP, and measuring instrument 220 amount is to former sound pressure curve 601 as shown in Figure 6.The sound of curve 601 between frequency 1KHz to 3KHz is large a little compared with other frequency zones, at the sound about 18 decibels of 2KHz.Avoiding sense of hearing uncomfortable to slow down the size variation of sound, only suppressing the portion of energy between 1KHz to 3KHz, one group of speech parameter can be designed with the effect making digital signal processor DSP have wave filter, be equivalent to curve 603.Thus, when digital signal processor DSP filters voice signal VM, the aim curve 605 measured is equivalent to the effect of former sound pressure curve 601 superimposed curves 603.
The difference of Fig. 6 and Fig. 5 is, Fig. 6 is high-leakage handheld mobile phone mode, measuring instrument 220 sound size is not more than 20 decibels in the curve 601 measured, and Fig. 5 is low leakage handheld mobile phone mode.For identical frequency, the sound of curve 501 is greater than the sound about 10 decibels of curve 601.Comfortable in order to sense of hearing, can have different design of filters for different handheld mobile phone mode, and this is also the reason that frequency transfer function in embodiment has many group speech parameters, but is not limited with above-mentioned embodiment.
Similarly, when user applies, compared with the larger Newton force of Fig. 3 handheld mobile phone mode, to be equivalent to receiver 140 to be more adjacent to microphone MIC to mobile phone.Do not carry out filtering to voice signal VM at digital signal processor DSP, the sound size that measuring instrument 220 amount arrives can similar curve 501, and sound variation between frequency 1KHz to 2KHz is larger.Therefore can bamboo product another group digital signal processor DSP speech parameter.
Referring again to Figure 1A.Based on the content of above-described embodiment institute teaching, when many groups parameter of design frequency transfer function, various mobile phone disposing way need be considered.For different putting position, the test number of people or user have a contact area at contact panel 120, and the number of this contact area can have influence on the size of light-source brightness LL.The look-up table of many group speech parameters and light-source brightness can be set up in advance.Then when user makes mobile phone, digital signal processor DSP can select the speech parameter of one group of the best from look-up table according to the size of the actual light-source brightness LL detected of proximity transducer (proximity sensor) 130, so digital signal processor DSP can dynamic conditioning frequency transfer function, and with the frequency transfer function adjusting parameter, frequency translation process is carried out to voice signal VM.
Clearer, according to the mobile phone disposing way crossed the test specification of certification and define, measure the brightness of proximity transducer 130 detected contact panel 120 under this disposing way, and to define this brightness be predetermined luminance.Parameter designed by the test specification of certification is excessively defined as first group of speech parameter.Then, then the brightness detected by the disposing way of different contact area and proximity transducer 130, speech parameter is organized in design more, and is recorded in look-up table.
Referring again to Figure 1B.Based on the content of above-described embodiment institute teaching, when many groups parameter of design frequency transfer function, various mobile phone disposing way need be considered.For the angle of inclination of different putting position, the look-up table at many group speech parameters and angle of inclination can be set up in advance.Then when user makes mobile phone, digital signal processor DSP can select the speech parameter of one group of the best from look-up table according to the size at the actual angle of inclination detected of gravity sensor (Gsensor) 150, so digital signal processor DSP can dynamic conditioning frequency transfer function, and with the frequency transfer function adjusting parameter, frequency translation process is carried out to voice signal VM.
Moreover, according to the mobile phone disposing way crossed the test specification of certification and define, measure the angle of inclination of gravity sensor 150 under this disposing way, and to define this angle of inclination be preset value.Parameter designed by the test specification of certification is excessively defined as first group of speech parameter.Then, then organize speech parameter according to differing tilt angles design more, and be recorded in look-up table.
It is worth mentioning that, although depict several possible kenel to many groups speech parameter of frequency transfer function in above-described embodiment, application of the present invention is when being not restricted to this.In embodiment, digital signal processor can the parameter of dynamic conditioning frequency transfer function, thus maintains comfortable sense of hearing quality.Below lift several embodiment again so that those of ordinary skill in the art can further understand spirit of the present invention, and implement the present invention.
Based on the content of above-described embodiment institute teaching, Fig. 7 is the audio signal processing method process flow diagram of the touch panel mobile phone according to one embodiment of the invention.Please refer to Fig. 7, the audio signal processing method of the touch panel mobile phone of the present embodiment comprises: received speech signal (step S710); Detect the light-source brightness (step S720) of contact panel; According to the size dynamic conditioning frequency transfer function (step S730) of light-source brightness; And frequency of utilization transfer function does frequency translation process (step S740) to voice signal.
Moreover, please merge with reference to Figure 1A and Fig. 7.More specifically, the step S730 of transfer function of adjusting frequency comprises step S731 to step S739.The relatively size (step S731) of light-source brightness LL and predetermined luminance.Wherein the definition of predetermined luminance is, according to the mobile phone disposing way that the test specification crossing certification defines, measures the brightness of proximity transducer 130 detected contact panel 120 under this disposing way.When comparative result is equal, the parameter of setpoint frequency transfer function is first group of speech parameter (step S733); And when light-source brightness LL is less than predetermined luminance, the parameter of setpoint frequency transfer function is second group of speech parameter (step S735); And when light-source brightness LL is greater than predetermined luminance, the parameter of setpoint frequency transfer function is the 3rd group of speech parameter (step S737).Setpoint frequency transfer function (step S739).
On the other hand, please merge with reference to Fig. 1 C and Fig. 7.More specifically, step S741 is comprised to step S745 to the step S740 that voice signal does frequency translation process.Detect touch panel mobile phone and select the first dynamically-adjusting parameter (step S741) relative to the angle of inclination of gravity direction.Then to adjust frequency again transfer function (step S743) according to the first dynamically-adjusting parameter.Then, frequency translation process (step S745) is done to voice signal.
Fig. 8 is the audio signal processing method process flow diagram of the touch panel mobile phone according to another embodiment of the present invention.Please refer to Fig. 8, the audio signal processing method of the touch panel mobile phone of the present embodiment comprises: received speech signal (step S810); Detect the angle of inclination (step S820) of touch panel mobile phone relative to gravity direction; According to the size dynamic conditioning frequency transfer function (step S830) at angle of inclination; And frequency of utilization transfer function does frequency translation process (step S840) to voice signal.
Moreover, please merge with reference to Figure 1B and Fig. 8.More specifically, the step S830 of transfer function of adjusting frequency comprises step S831 to step S837.The relatively size (step S831) of angle of inclination and preset value.Wherein the definition of preset value is, according to the mobile phone disposing way that the test specification crossing certification defines, measures the angle of inclination of gravity sensor 150 under this disposing way.When comparative result is equal, the parameter of setpoint frequency transfer function is first group of speech parameter (step S833); And when angle of inclination is not equal to preset value, the parameter of setpoint frequency transfer function is second group of speech parameter (step S835).In addition, when angle of inclination is not equal to preset value, the speech parameter of different group can also be selected again according to various angle.Setpoint frequency transfer function (step S837).
On the other hand, please merge with reference to Fig. 1 C and Fig. 8.More specifically, step S841 is comprised to step S847 to the step S840 that voice signal does frequency translation process.Detect the light-source brightness LL (step S841) of contact panel 120.The first dynamically-adjusting parameter (step S843) is selected according to light-source brightness LL.To adjust frequency again transfer function (step S845) according to the first dynamically-adjusting parameter.Frequency translation process (step S847) is done to voice signal.So also can reach effect similar with above-described embodiment.
Audio signal processing method process flow diagram about Fig. 7 and Fig. 8 is only several selection embodiments.In another embodiment, the parameter of a class frequency transfer function can be selected according to the size at light-source brightness LL and angle of inclination simultaneously, then frequency translation process is done to voice signal.So also can reach effect similar with above-described embodiment, but the present invention is not as limit.
In sum, audio signal processing method of the present invention mainly designs the sensor mechanism of mobile phone with the touch panel mobile phone applying it, detect people's ear and the contact area of face for touch panel mobile phone or the angle of inclination relative to gravity direction, adjust the frequency transfer function of voice signal according to this.Thus, realize dynamic conditioning Speech processing, auto-compensation LF-response, the volume change of frequency response not only can be avoided excessive, and comfortable sense of hearing quality can be maintained, build more plentiful speech quality.
Although the present invention with embodiment disclose as above, so itself and be not used to limit the present invention, any person of an ordinary skill in the technical field, when doing a little change and retouching, and does not depart from the spirit and scope of the present invention.
Claims (6)
1. an audio signal processing method for touch panel mobile phone, comprising:
Receive a voice signal;
Detect a light-source brightness of a contact panel;
According to size dynamic conditioning one frequency transfer function of this light-source brightness; And
This frequency transfer function after adjustment is used to do frequency translation process to this voice signal.
2. the audio signal processing method of touch panel mobile phone according to claim 1, the step wherein adjusting this frequency transfer function comprises:
The relatively size of this light-source brightness and a predetermined luminance; And
When comparative result is equal, the parameter setting this frequency transfer function is one first group of speech parameter; And when this light-source brightness is less than this predetermined luminance, the parameter setting this frequency transfer function is one second group of speech parameter; And when this light-source brightness is greater than this predetermined luminance, the parameter setting this frequency transfer function is one the 3rd group of speech parameter.
3. the audio signal processing method of touch panel mobile phone according to claim 1, wherein uses this frequency transfer function after adjustment to comprise the step that this voice signal does frequency translation process:
Detect described touch panel mobile phone and select one first dynamically-adjusting parameter relative to an angle of inclination of gravity direction;
According to this first dynamically-adjusting parameter, this frequency transfer function after adjustment is adjusted again; And
This frequency transfer function after adjusting again is used to do frequency translation process to this voice signal.
4. a touch panel mobile phone, comprising:
One detuner, produces a voice signal;
One contact panel;
One proximity transducer, in order to detect a light-source brightness of this contact panel;
One digital signal processor, is coupled to this detuner, this contact panel and this proximity transducer, and this digital signal processor, according to size dynamic conditioning one frequency transfer function of this light-source brightness, does frequency translation process to this voice signal according to this;
One digital to analog converter, is coupled to this digital signal processor, in order to convert this voice signal after frequency translation to a simulating signal; And
One receiver, is coupled to this digital to analog converter, in order to export this simulating signal.
5. touch panel mobile phone according to claim 4, wherein this digital signal processor compares the size of this light-source brightness and a predetermined luminance, and when comparative result is equal, the parameter setting this frequency transfer function is one first group of speech parameter; And when this light-source brightness is less than this predetermined luminance, the parameter setting this frequency transfer function is one second group of speech parameter; And when this light-source brightness is greater than this predetermined luminance, the parameter setting this frequency transfer function is one the 3rd group of speech parameter.
6. touch panel mobile phone according to claim 4, wherein also comprises:
One gravity sensor, be coupled to this digital signal processor, in order to detect the angle of inclination of described touch panel mobile phone relative to gravity direction: and also select one first dynamically-adjusting parameter according to this angle of inclination when this digital signal processor does frequency translation process to this voice signal and according to this first dynamically-adjusting parameter, this frequency transfer function after adjustment adjusted again, and use this frequency transfer function after adjusting again to do frequency translation process to this voice signal.
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| US10104472B2 (en) * | 2016-03-21 | 2018-10-16 | Fortemedia, Inc. | Acoustic capture devices and methods thereof |
| CN106371798A (en) * | 2016-08-31 | 2017-02-01 | 乐视控股（北京）有限公司 | Screen backlight adjusting method and device |
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