CN103841241A - Volume adjusting method and apparatus - Google Patents
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- CN103841241A CN103841241A CN201210477692.XA CN201210477692A CN103841241A CN 103841241 A CN103841241 A CN 103841241A CN 201210477692 A CN201210477692 A CN 201210477692A CN 103841241 A CN103841241 A CN 103841241A
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Abstract
The invention discloses a volume adjusting method and apparatus, and belongs to the technical field of audio processing. The method comprises: obtaining the perception loudness indicators of a first voice segment and a second voice segment in a conversation under an any-grade volume, wherein the first voice segment is a sound segment before the second sound segment, and the perception loudness indicators are obtained by weight integration according to a preset weight coefficient by volume with different frequencies in a voice spectrum; and according to the perception loudness indicators of the first voice segment and the second voice segment, determining the volume adjusting coefficient of the second voice segment, and adjusting the volume of the second voice segment according to the determined volume adjusting coefficient. According to the invention, the volume adjusting coefficient of the second voice segment is determined according to the perception loudness indicators of the first voice segment and the second voice segment obtained under the any-grade volume, and the volume of the second voice segment is adjusted accordingly, such that the volume is adjusted according to loudness, the adjusted actual loudness reaches a balance with the human ear perception loudness, and the volume adjusting effect is improved.
Description
Technical field
The present invention relates to audio signal processing technique field, particularly a kind of method for regulation of sound volume and device.
Background technology
Along with the continuous progress of audio signal processing technique, which kind of speech ciphering equipment no matter adopt the kind of the speech ciphering equipment of audio signal processing technique to get more and more, be, situation about differing for volume under varying environment, in order to bring good auditory perception to user, usually need the volume of call to adjust.
Prior art is in the time adjusting volume, the mode that generally can adopt self adaptation volume to adjust, which is determined volume adjustment coefficient by adjusting the physical parameter such as amplitude, frequency of sound, and adjusts coefficient according to this volume the volume unification of every section of sound conversing is adjusted.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
The power of sound is called the loudness of sound, because the sound thickness of correspondent is different, even under same rank volume, the sound intensity that people's ear is heard also can be different, and prior art is only determined volume adjustment coefficient by adjusting the mode of physical parameter, and all adopt same volume adjustment coefficient to adjust to the volume of every section of sound, therefore, adjust the actual loudness of sound after volume and the loudness of people's ear subjective sensation can exist certain deviation by prior art, cause the adjustment poor effect of volume.
Summary of the invention
In order to solve the problem of prior art, the embodiment of the present invention provides a kind of method for regulation of sound volume and device.Described technical scheme is as follows:
On the one hand, provide a kind of method for regulation of sound volume, described method comprises:
Under a rank volume in office, obtain first sound segment in call and the perceived loudness index of rising tone segment, described first sound segment is the acoustic segment before described rising tone segment, and described perceived loudness index is weighted integration by the volume of different frequency in sound spectrum by the default weight coefficient of its correspondence and obtains;
Determine the volume adjustment coefficient of described rising tone segment according to the perceived loudness index of described first sound segment and rising tone segment, and according to the volume of rising tone segment described in definite volume adjustment coefficient adjustment.
Wherein, described first sound segment is the last acoustic segment adjacent with described rising tone segment;
Under a described rank volume in office, obtain first sound segment in call and the perceived loudness index of rising tone segment, specifically comprise:
Under a rank volume in office, obtain the perceived loudness index of rising tone segment described in the perceived loudness exponential sum of the last acoustic segment adjacent with described rising tone segment in call.
Alternatively, described first sound segment is the first acoustic segment in described call;
Under a described rank volume in office, obtain first sound segment in call and the perceived loudness index of rising tone segment, specifically comprise:
Under a rank volume in office, obtain the perceived loudness index of rising tone segment described in the perceived loudness exponential sum of the first acoustic segment in call.
Wherein, the described perceived loudness index according to described first sound segment and rising tone segment is determined the volume adjustment coefficient of described rising tone segment, specifically comprises:
Ratio between the perceived loudness index of rising tone segment described in the perceived loudness exponential sum of described first sound segment is adjusted coefficient as the volume of the described rising tone segment of determining.
Further, before obtaining the perceived loudness index of first sound segment in call and rising tone segment under a described rank volume in office, also comprise:
Obtain the volume that user adjusts the single-tone of different frequency according to same perceived loudness, and determine the default weight coefficient corresponding to volume of different frequency according to the volume getting;
Correspondingly, under a described rank volume in office, obtain first sound segment in call and the perceived loudness index of rising tone segment, specifically comprise:
Under a rank volume in office, obtain the first sound sound spectrum of the first sound segment in call and the rising tone sound spectrum of rising tone segment;
The volume of different frequency in described first sound sound spectrum is weighted to integration by the default weight coefficient of its correspondence, obtain the perceived loudness index of described first sound segment, and the volume of different frequency in described rising tone sound spectrum is weighted to integration by the default weight coefficient of its correspondence, obtain the perceived loudness index of described rising tone segment.
On the other hand, also provide a kind of volume adjusting apparatus, described device comprises:
Acquisition module, for obtaining the perceived loudness index of first sound segment and the rising tone segment of call under a rank volume in office, described first sound segment is the acoustic segment before described rising tone segment, and described perceived loudness index is weighted integration by the volume of different frequency in sound spectrum by the default weight coefficient of its correspondence and obtains;
Determination module, determines that for the perceived loudness index of the first sound segment that gets according to described acquisition module and the rising tone segment volume of described rising tone segment is adjusted coefficient;
Adjusting module, for adjusting the volume of rising tone segment described in coefficient adjustment according to the definite volume of described determination module.
Wherein, described first sound segment is the last acoustic segment adjacent with described rising tone segment;
Described acquisition module, specifically for obtaining the perceived loudness index of rising tone segment described in the perceived loudness exponential sum of the last acoustic segment adjacent with described rising tone segment in call under a rank volume in office.
Alternatively, described first sound segment is the first acoustic segment in described call;
Described acquisition module, specifically for obtaining the perceived loudness index of rising tone segment described in the perceived loudness exponential sum of the first acoustic segment in call under a rank volume in office.
Wherein, described determination module, adjusts coefficient specifically for the ratio between the perceived loudness index of rising tone segment described in the perceived loudness exponential sum of described first sound segment as the volume of the described rising tone segment of determining.
Further, described device, also comprises:
Pretreatment module, the volume of according to same perceived loudness, the single-tone of different frequency being adjusted for obtaining user, and determine the default weight coefficient corresponding to volume of different frequency according to the volume getting;
Correspondingly, described acquisition module, specifically for obtaining the first sound sound spectrum of the first sound segment in call and the rising tone sound spectrum of rising tone segment under a rank volume in office; The default weight coefficient that the volume of different frequency in described first sound sound spectrum is determined by the described pretreatment module of its correspondence is weighted integration, obtain the perceived loudness index of described first sound segment, and the volume of different frequency in described rising tone sound spectrum is weighted to integration by the definite default weight coefficient of the described pretreatment module of its correspondence, obtain the perceived loudness index of described rising tone segment.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
By obtaining the perceived loudness index of the first sound segment before rising tone segment in call and described rising tone segment under a rank volume in office, according to the volume of adjusting coefficient adjustment rising tone segment according to the volume of the definite rising tone segment of the perceived loudness index of first sound segment and rising tone segment, thereby realize according to loudness and adjust volume, the loudness that ensures each acoustic segment of call is consistent, make actual loudness and the loudness of people's ear subjective sensation after adjusting reach balance, and then improve the effect of volume adjustment.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of a kind of method for regulation of sound volume of providing of the embodiment of the present invention one;
Fig. 2 is a kind of human hearing characteristic curve synoptic diagram that the embodiment of the present invention two provides;
Fig. 3 is a kind of equal loudness contour schematic diagram that the embodiment of the present invention two provides;
Fig. 4 is the method flow diagram that a kind of volume that the embodiment of the present invention two provides is adjusted;
Fig. 5 is the structural representation of a kind of volume adjusting apparatus of providing of the embodiment of the present invention three;
Fig. 6 is the structural representation of the another kind of volume adjusting apparatus that provides of the embodiment of the present invention three.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment mono-
The present embodiment provides a kind of method for regulation of sound volume, and referring to Fig. 1, the method flow that the present embodiment provides is specific as follows:
101: under a rank volume in office, obtain first sound segment in call and the perceived loudness index of rising tone segment, first sound segment is the acoustic segment before rising tone segment, and perceived loudness index is weighted integration by the volume of different frequency in sound spectrum by the default weight coefficient of its correspondence and obtains;
Wherein, first sound segment is the last acoustic segment adjacent with rising tone segment;
Under a rank volume in office, obtain first sound segment in call and the perceived loudness index of rising tone segment, specifically include but not limited to:
Under a rank volume in office, obtain the perceived loudness index of the perceived loudness exponential sum rising tone segment of the last acoustic segment adjacent with rising tone segment in call.
Alternatively, first sound segment is the first acoustic segment in call;
Under a rank volume in office, obtain first sound segment in call and the perceived loudness index of rising tone segment, specifically include but not limited to:
Under a rank volume in office, obtain the perceived loudness index of the perceived loudness exponential sum rising tone segment of the first acoustic segment of call.
102: the volume of determining rising tone segment according to the perceived loudness index of first sound segment and rising tone segment is adjusted coefficient, and adjust the volume of coefficient adjustment rising tone segment according to definite volume.
Wherein, determine that according to the perceived loudness index of first sound segment and the rising tone segment volume of rising tone segment is adjusted coefficient, specifically include but not limited to:
Ratio between the perceived loudness index of the perceived loudness exponential sum rising tone segment of first sound segment is adjusted coefficient as the volume of definite rising tone segment.
Further, before obtaining the perceived loudness index of first sound segment in call and rising tone segment under a rank volume in office, also comprise:
Obtain the volume that user adjusts the single-tone of different frequency according to same perceived loudness, and determine the default weight coefficient corresponding to volume of different frequency according to the volume getting;
Correspondingly, under a rank volume in office, obtain first sound segment in call and the perceived loudness index of rising tone segment, specifically comprise:
Under a rank volume in office, obtain the first sound sound spectrum of the first sound segment in call and the rising tone sound spectrum of rising tone segment;
The volume of different frequency in first sound sound spectrum is weighted to integration by the default weight coefficient of its correspondence, obtain the perceived loudness index of first sound segment, and the volume of different frequency in rising tone sound spectrum is weighted to integration by the default weight coefficient of its correspondence, obtain the perceived loudness index of rising tone segment.
The method that the present embodiment provides, by obtaining the perceived loudness index of the first sound segment before rising tone segment in call and rising tone segment under a rank volume in office, according to the volume of adjusting coefficient adjustment rising tone segment according to the volume of the definite rising tone segment of the perceived loudness index of first sound segment and rising tone segment, thereby realize according to loudness and adjust volume, the loudness that ensures each acoustic segment of call is consistent, make actual loudness and the loudness of people's ear subjective sensation after adjusting reach balance, and then improve the effect of volume adjustment.
The method for regulation of sound volume providing in order more clearly to set forth above-described embodiment, in conjunction with the content of above-described embodiment, taking following embodiment bis-as example, is elaborated to method for regulation of sound volume, refers to following embodiment bis-:
Embodiment bis-
For the sound under various environment, due to individual difference, everyone has different susceptibilitys to the sound of different frequency, has illustrated the range of audibility of people's ear in the human hearing characteristic curve chart shown in Fig. 2.Can find out in conjunction with the human hearing characteristic curve shown in Fig. 2, in acoustic response region, the sound pressure level that different frequency is corresponding is not identical.But for different sound pressure levels corresponding to different frequency, but there is identical situation, equal loudness contour as shown in Figure 3 in the sound intensity that people's ear is felt sometimes.The numeral marking on every curve in these sound curve charts is the unit of loudness, it has illustrated the relation that waits sound pressure level and frequency under the condition of sound, ringing curve chart by these can learn, when volume hour, people's ear is to high bass perception deficiency, and in the time that volume is larger, people's ear is abundant to high bass perception.For example, the sound intensity level of the sound of 1000Hz is 60dB, and the sound of another frequency sounds equally loud with the 1000Hz sound of 60dB, and the loudness level of this sound is exactly 60 sides; And the 100Hz pure tone of 50dB and the 1000Hz pure tone of 40dB etc. ring, both are positioned in same 40 side's equal loudness contours.
In conjunction with the curve synoptic diagram shown in Fig. 2 and Fig. 3, in order to make everyone feel identical loudness to alternative sounds, the present embodiment provides a kind of method for regulation of sound volume, the method is by carrying out volume adjustment according to the loudness of sound, thereby make actual loudness and the loudness of people's ear subjective sensation after adjusting reach balance, and then ensure the effect of volume adjustment.In conjunction with the content of above-described embodiment one, referring to Fig. 4, the method flow that the present embodiment provides is specific as follows:
401: obtain the volume that user adjusts the single-tone of different frequency according to same perceived loudness, and determine the default weight coefficient corresponding to volume of different frequency according to the volume getting;
For this step, why this step obtains the volume that user adjusts the single-tone of different frequency according to same perceived loudness, and determine the corresponding default weight coefficient of volume of different frequency according to the volume getting, to adjust scheme in order to customize different volumes for different user, for the applicable equal loudness contour of different user adjustment, thereby realize the individual demand that volume is adjusted, ensure that each user can perceive identical loudness to different sound.When specific implementation, the mode of determining the corresponding default weight coefficient of volume of different frequency can have multiple, the present embodiment is in the time implementing, include but not limited to first get the typical single-tone of different frequency, by playing respectively under different decibel grades, make user feel that the loudness size of same rank volume is the same, obtain afterwards the volume that this user adjusts the single-tone of different frequency according to same perceived loudness, then determine the corresponding default weight coefficient of volume of different frequency according to the volume getting.
For the ease of understanding, to pass through to play 20HZ, 40HZ, 60HZ, 1kHZ, 2kHZ, single-tone corresponding to each frequency such as 15kHZ determines that the default weight coefficient that different frequency is corresponding is example, if typical problem is 50, play after the single-tone of 20HZ with 50 volume, the loudness that user is felt to it is as standard loudness, the follow-up single-tone of still playing 40HZ with 50 volume, loudness when now feeling its loudness and play the single-tone of 20HZ due to user is different, therefore adjust the single-tone volume of playing 40HZ, until adjusted to play 20HZ single-tone time perceived loudness identical, now the single-tone volume of this 40HZ is 55, by comparing twice volume, if default weight coefficient corresponding to the volume of 20HZ is 1, weight coefficient corresponding to the volume of 40HZ is 55/50=1.1.In like manner, default weight coefficient corresponding to the volume of other subsequent frequencies adopted in a like fashion and determined, this is no longer going to repeat them for the present embodiment.
Certainly, determine default weight coefficient corresponding to the volume of different frequency except adopting aforesaid way, can also be according to the age of different user and/or sex, set respectively the default weight coefficient corresponding to volume of different frequency for each user, set based on experience value the default weight coefficient corresponding to volume of different frequency.In addition, the mode of default weight coefficient corresponding to the volume that can also select other to determine different frequency, the present embodiment does not limit the mode of default weight coefficient corresponding to the volume of the concrete frequency of choosing and definite different frequency.
It should be noted that, this step is optional step, in the time carrying out for the first time the method that the present embodiment provides, carrying out this step determines after default weight coefficient corresponding to the volume of different frequency, the default weight coefficient that can directly use this step to obtain in the time of each execution the method afterwards, and without repeat this step at every turn.In addition, because the corresponding default weight coefficient of volume of the definite different frequency of this step is the loudness that the volume of different frequency perceived for each user, and for different user, the loudness that the volume of same frequency perceives also likely can there are differences, thereby for different user, can re-execute this step, think that different user customizes different equal loudness contours.
402: under a rank volume in office, obtain first sound segment in call and the perceived loudness index of rising tone segment, first sound segment is the acoustic segment before rising tone segment, and perceived loudness index is weighted integration by the volume of different frequency in sound spectrum by the default weight coefficient of its correspondence and obtains;
Wherein, first sound segment and rising tone segment are a sound clip in whole call, to first sound segment and rising tone segment, the position in call does not limit the present embodiment, and first sound segment includes but not limited to as the last acoustic segment adjacent with rising tone segment; Correspondingly, while obtaining the perceived loudness index of first sound segment in call and rising tone segment under this step rank volume in office, specifically include but not limited to:
Under a rank volume in office, obtain the perceived loudness index of the perceived loudness exponential sum rising tone segment of the last acoustic segment adjacent with rising tone segment in call.
Alternatively, consistent in order to ensure the loudness of the each acoustic segment in whole call, reach balance, the loudness of the first acoustic segment of the loudness of each acoustic segment and call can be consistent, therefore, this first sound segment can be the first acoustic segment of call; Correspondingly, while obtaining the perceived loudness index of first sound segment in call and rising tone segment under this step rank volume in office, specifically include but not limited to:
Under a rank volume in office, obtain the perceived loudness index of the perceived loudness exponential sum rising tone segment of the first acoustic segment in call.
Particularly, no matter first sound segment and rising tone segment are arranged in which position of call, the mode of obtaining the perceived loudness index of first sound segment in call and rising tone segment under a rank volume in office can have multiple, and the mode that the present embodiment adopts specifically includes but not limited to:
Under a rank volume in office, obtain the first sound sound spectrum of the first sound segment in call and the rising tone sound spectrum of rising tone segment;
The volume of different frequency in first sound sound spectrum is weighted to integration by the default weight coefficient of its correspondence, obtain the perceived loudness index of first sound segment, and the volume of different frequency in rising tone sound spectrum is weighted to integration by the default weight coefficient of its correspondence, obtain the perceived loudness index of rising tone segment.
For example, the frequency that the first sound sound spectrum of first sound segment comprises is followed successively by 20HZ, 30HZ, 50HZ, and the each self-corresponding default weight coefficient of the volume of the 20HZ that above-mentioned steps 201 obtains, 30HZ, 50HZ is respectively 1.1,1.2 and 1.5, the volume of 20HZ, 30HZ, 50HZ is weighted to the perceived loudness index that the integral result obtaining after integration is this first sound segment by its each self-corresponding default weight coefficient 1.1,1.2 and 1.5.
403: the volume of determining rising tone segment according to the perceived loudness index of first sound segment and rising tone segment is adjusted coefficient, and adjust the volume of coefficient adjustment rising tone segment according to definite volume.
Particularly, adjust the mode of coefficient for the volume of determining rising tone segment according to the perceived loudness index of first sound segment and rising tone segment, can have a variety ofly, the mode that the present embodiment adopts includes but not limited to:
Ratio between the perceived loudness index of the perceived loudness exponential sum rising tone segment of first sound segment is adjusted coefficient as the volume of definite rising tone segment.
For convenience of explanation, taking the perceived loudness index of first sound segment as 50, the perceived loudness index of rising tone segment is 49 for example, if the loudness of two acoustic segment reaches balance, the perceived loudness index of two acoustic segment should be consistent or reach unanimity, and can find out by the perceived loudness index of first sound segment and rising tone segment, the perceived loudness index of rising tone segment is lower than the perceived loudness index of first sound segment, the loudness that reflects thus rising tone segment has downward trend, therefore, can adjust coefficient as definite volume by the ratio 50/49 between the perceived loudness index of the perceived loudness exponential sum rising tone segment of first sound segment, and adjust coefficient according to this volume the volume of rising tone segment is adjusted, on original volume basis of rising tone segment, its volume is amplified to adjustment, and the multiple amplifying is 50/49.
The method that the present embodiment provides, by obtaining the perceived loudness index of the first sound segment before rising tone segment in call and rising tone segment under a rank volume in office, according to the volume of adjusting coefficient adjustment rising tone segment according to the volume of the definite rising tone segment of the perceived loudness index of first sound segment and rising tone segment, thereby realize according to loudness and adjust volume, the loudness that ensures each acoustic segment of call is consistent, make actual loudness and the loudness of people's ear subjective sensation after adjusting reach balance, and then improve the effect of volume adjustment.
Embodiment tri-
The present embodiment provides a kind of volume adjusting apparatus, the method for regulation of sound volume that this device provides for carrying out above-described embodiment one or embodiment bis-.Referring to Fig. 5, this device comprises:
Adjusting module 53, for adjusting the volume of coefficient adjustment rising tone segment according to the definite volume of determination module 52.
Wherein, first sound segment is the last acoustic segment adjacent with rising tone segment;
Alternatively, first sound segment is the first acoustic segment of call;
Wherein, determination module 52, adjusts coefficient specifically for the ratio between the perceived loudness index of the perceived loudness exponential sum rising tone segment of first sound segment as the volume of definite rising tone segment.
Further, referring to Fig. 6, this device also comprises:
Correspondingly, acquisition module 51, specifically for obtaining the first sound sound spectrum of the first sound segment in call and the rising tone sound spectrum of rising tone segment under a rank volume in office; The default weight coefficient that the volume of different frequency in first sound sound spectrum is determined by its corresponding pretreatment module 50 is weighted integration, obtain the perceived loudness index of first sound segment, and the volume of different frequency in rising tone sound spectrum is weighted to integration by its corresponding pretreatment module 50 definite default weight coefficients, obtain the perceived loudness index of rising tone segment.
The device that the present embodiment provides, by obtaining the perceived loudness index of the first sound segment before rising tone segment in call and rising tone segment under a rank volume in office, according to the volume of adjusting coefficient adjustment rising tone segment according to the volume of the definite rising tone segment of the perceived loudness index of first sound segment and rising tone segment, thereby realize according to loudness and adjust volume, the loudness that ensures each acoustic segment of call is consistent, make actual loudness and the loudness of people's ear subjective sensation after adjusting reach balance, and then improve the effect of volume adjustment.
It should be noted that: the volume adjusting apparatus that above-described embodiment provides is in the time adjusting volume, only be illustrated with the division of above-mentioned each functional module, in practical application, can above-mentioned functions be distributed and completed by different functional modules as required, be divided into different functional modules by the internal structure of device, to complete all or part of function described above.In addition, the volume adjusting apparatus that above-described embodiment provides and method for regulation of sound volume embodiment belong to same design, and its specific implementation process refers to embodiment of the method, repeats no more here.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that all or part of step that realizes above-described embodiment can complete by hardware, also can carry out the hardware that instruction is relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a method for regulation of sound volume, is characterized in that, described method comprises:
Under a rank volume in office, obtain first sound segment in call and the perceived loudness index of rising tone segment, described first sound segment is the acoustic segment before described rising tone segment, and described perceived loudness index is weighted integration by the volume of different frequency in sound spectrum by the default weight coefficient of its correspondence and obtains;
Determine the volume adjustment coefficient of described rising tone segment according to the perceived loudness index of described first sound segment and rising tone segment, and according to the volume of rising tone segment described in definite volume adjustment coefficient adjustment.
2. method according to claim 1, is characterized in that, described first sound segment is the last acoustic segment adjacent with described rising tone segment;
Under a described rank volume in office, obtain first sound segment in call and the perceived loudness index of rising tone segment, specifically comprise:
Under a rank volume in office, obtain the perceived loudness index of rising tone segment described in the perceived loudness exponential sum of the last acoustic segment adjacent with described rising tone segment in call.
3. method according to claim 1, is characterized in that, described first sound segment is the first acoustic segment in described call;
Under a described rank volume in office, obtain first sound segment in call and the perceived loudness index of rising tone segment, specifically comprise:
Under a rank volume in office, obtain the perceived loudness index of rising tone segment described in the perceived loudness exponential sum of the first acoustic segment in call.
4. method according to claim 1, is characterized in that, the described perceived loudness index according to described first sound segment and rising tone segment is determined the volume adjustment coefficient of described rising tone segment, specifically comprises:
Ratio between the perceived loudness index of rising tone segment described in the perceived loudness exponential sum of described first sound segment is adjusted coefficient as the volume of the described rising tone segment of determining.
5. according to the method described in arbitrary claim in claim 1 to 4, it is characterized in that, before obtaining the perceived loudness index of first sound segment in call and rising tone segment under a described rank volume in office, also comprise:
Obtain the volume that user adjusts the single-tone of different frequency according to same perceived loudness, and determine the default weight coefficient corresponding to volume of different frequency according to the volume getting;
Correspondingly, under a described rank volume in office, obtain first sound segment in call and the perceived loudness index of rising tone segment, specifically comprise:
Under a rank volume in office, obtain the first sound sound spectrum of the first sound segment in call and the rising tone sound spectrum of rising tone segment;
The volume of different frequency in described first sound sound spectrum is weighted to integration by the default weight coefficient of its correspondence, obtain the perceived loudness index of described first sound segment, and the volume of different frequency in described rising tone sound spectrum is weighted to integration by the default weight coefficient of its correspondence, obtain the perceived loudness index of described rising tone segment.
6. a volume adjusting apparatus, is characterized in that, described device comprises:
Acquisition module, for obtaining the perceived loudness index of first sound segment and the rising tone segment of call under a rank volume in office, described first sound segment is the acoustic segment before described rising tone segment, and described perceived loudness index is weighted integration by the volume of different frequency in sound spectrum by the default weight coefficient of its correspondence and obtains;
Determination module, determines that for the perceived loudness index of the first sound segment that gets according to described acquisition module and the rising tone segment volume of described rising tone segment is adjusted coefficient;
Adjusting module, for adjusting the volume of rising tone segment described in coefficient adjustment according to the definite volume of described determination module.
7. device according to claim 6, is characterized in that, described first sound segment is the last acoustic segment adjacent with described rising tone segment;
Described acquisition module, specifically for obtaining the perceived loudness index of rising tone segment described in the perceived loudness exponential sum of the last acoustic segment adjacent with described rising tone segment in call under a rank volume in office.
8. device according to claim 6, is characterized in that, described first sound segment is the first acoustic segment in described call;
Described acquisition module, specifically for obtaining the perceived loudness index of rising tone segment described in the perceived loudness exponential sum of the first acoustic segment in call under a rank volume in office.
9. device according to claim 6, it is characterized in that, described determination module, adjusts coefficient specifically for the ratio between the perceived loudness index of rising tone segment described in the perceived loudness exponential sum of described first sound segment as the volume of the described rising tone segment of determining.
10. according to the device described in arbitrary claim in claim 6 to 9, it is characterized in that, described device, also comprises:
Pretreatment module, the volume of according to same perceived loudness, the single-tone of different frequency being adjusted for obtaining user, and determine the default weight coefficient corresponding to volume of different frequency according to the volume getting;
Correspondingly, described acquisition module, specifically for obtaining the first sound sound spectrum of the first sound segment in call and the rising tone sound spectrum of rising tone segment under a rank volume in office; The default weight coefficient that the volume of different frequency in described first sound sound spectrum is determined by the described pretreatment module of its correspondence is weighted integration, obtain the perceived loudness index of described first sound segment, and the volume of different frequency in described rising tone sound spectrum is weighted to integration by the definite default weight coefficient of the described pretreatment module of its correspondence, obtain the perceived loudness index of described rising tone segment.
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| CN107172255A (en) * | 2017-07-21 | 2017-09-15 | 广东欧珀移动通信有限公司 | Voice signal self-adapting regulation method, device, mobile terminal and storage medium |
| CN108174031A (en) * | 2017-12-26 | 2018-06-15 | 上海展扬通信技术有限公司 | A kind of volume adjusting method, terminal device and computer readable storage medium |
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| CN112019973A (en) * | 2019-05-30 | 2020-12-01 | 原相科技股份有限公司 | Sound adjusting method and sound adjusting device for executing the method |
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