CN109036445B - Method for adjusting sound source gain value of microphone MIC sensor and motion camera - Google Patents
Method for adjusting sound source gain value of microphone MIC sensor and motion camera Download PDFInfo
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Abstract
The embodiment of the invention provides a method for adjusting a sound source gain value of a microphone MIC sensor, which is applied to an image acquisition mobile terminal, wherein the image acquisition mobile terminal comprises the MIC sensor, and the method comprises the following steps: determining the current acceleration and the current movement speed of the image acquisition mobile terminal; judging whether the direction of the sound inlet hole of the MIC sensor is consistent with the movement direction of the image acquisition mobile terminal or not according to the positive and negative conditions of the current acceleration and the change trend of the current movement speed; if so, turning down the current input sound source gain value of the MIC sensor. By applying the embodiment of the invention, the wind noise input into the MIC sensor can be reduced.
Description
Technical Field
The invention relates to the technical field of audio processing, in particular to a method for adjusting a sound source gain value of an MIC sensor and a motion camera.
Background
With the rapid development of the moving camera technology, the requirements of users on the quality of audio recorded by the moving camera are higher and higher. When a motion camera is used for recording or recording in a motion process, due to the fact that the motion speed is high, a Microphone (MIC) sensor arranged on the motion camera inputs wind noise when inputting audio, and the audio quality is influenced.
In order to reduce the wind noise input into the MIC sensor, a widely used method is to provide a wind-reducing appearance structure at the sound inlet of the microphone. However, in a scene where the wind speed is high and the sound inlet of the MIC sensor is oriented in the same direction as the moving direction of the moving camera, large wind noise still exists in the recorded sound.
Disclosure of Invention
The embodiment of the invention aims to provide an adjusting method of a sound source gain value of an MIC sensor and a motion camera, so as to reduce wind noise input into the MIC sensor. The specific technical scheme is as follows:
the embodiment of the invention provides a method for adjusting a sound source gain value of a microphone MIC sensor, which is applied to an image acquisition mobile terminal, wherein the image acquisition mobile terminal comprises the MIC sensor, and the method comprises the following steps: determining the current acceleration and the current movement speed of the image acquisition mobile terminal; judging whether the direction of the sound inlet hole of the MIC sensor is consistent with the movement direction of the image acquisition mobile terminal or not according to the positive and negative conditions of the current acceleration and the change trend of the current movement speed; if so, turning down the current input sound source gain value of the MIC sensor.
Preferably, before the step of reducing the current input sound source gain value of the MIC sensor, the method further includes: judging whether the current movement speed exceeds a preset speed threshold value or not; and if the current movement speed exceeds a preset speed threshold value, executing the step of reducing the current input sound source gain value of the MIC sensor.
Preferably, the step of reducing the current input sound source gain value of the MIC sensor includes: determining a target input sound source gain value corresponding to the current motion speed according to a preset corresponding relation between the motion speed and the input sound source gain value; judging whether the current input sound source gain value of the MIC sensor is consistent with the target input sound source gain value; if not, adjusting the current input sound source gain value to the target input sound source gain value.
Preferably, the step of determining the target input sound source gain value corresponding to the current motion speed according to a preset correspondence between the motion speed and the input sound source gain value includes: determining a target motion speed interval where the current motion speed is located according to a preset comparison table, wherein the comparison table comprises a corresponding relation between at least one motion speed interval and an input sound source gain value; and determining a target input sound source gain value corresponding to the target motion speed interval according to the comparison table.
Preferably, if the sound inlet hole of the MIC sensor faces in a direction different from the moving direction of the image capturing mobile terminal, the method further includes: and adjusting the current input sound source gain value of the input sound source of the MIC sensor to be a preset gain value.
Preferably, the image acquisition mobile terminal further comprises an acceleration sensor and a speed sensor; determining, by the acceleration sensor, an acceleration of the image capturing mobile terminal, and determining, by the velocity sensor, a motion velocity of the image capturing mobile terminal; the method further comprises the following steps: when the acceleration sensor and the speed sensor are in a sleep mode, judging whether the image acquisition mobile terminal starts to move, if so, switching the acceleration sensor and the speed sensor into a normal working mode; judging whether the variation of the current acceleration is smaller than a preset acceleration increment threshold or not, and whether the duration of the variation smaller than the acceleration increment threshold exceeds a preset stationary time threshold or not, wherein the variation comprises a difference value between the acceleration acquired by the acceleration sensor in a current preset sampling period and the acceleration acquired in a previous preset sampling period before the current preset sampling period; if so, determining that the image acquisition mobile terminal is in a static state, and switching the acceleration sensor and the speed sensor into the sleep mode.
The embodiment of the invention also provides a motion camera, wherein a microphone MIC sensor, an acceleration sensor, a speed sensor, a processor and an audio processor are arranged on the motion camera; the acceleration sensor is used for determining the current acceleration of the motion camera; the speed sensor is used for determining the current motion speed of the motion camera; the processor is used for judging whether the direction of the sound inlet hole of the MIC sensor is consistent with the movement direction of the movement camera or not according to the positive and negative conditions of the current acceleration and the change trend of the current movement speed; if so, turning down the current input sound source gain value of the MIC sensor through the audio processor.
Preferably, the processor is further configured to determine whether the current movement speed exceeds a preset speed threshold; and if the current movement speed exceeds a preset speed threshold value, reducing the current input sound source gain value of the MIC sensor through the audio processor.
Preferably, the processor is specifically configured to determine a target input sound source gain value corresponding to the current motion speed according to a preset correspondence between the motion speed and the input sound source gain value; judging whether the current input sound source gain value of the MIC sensor is consistent with the target input sound source gain value; if not, the current input sound source gain value is adjusted to the target input sound source gain value through the audio processor.
Preferably, the processor is specifically configured to determine a target motion velocity interval where the current motion velocity is located according to a preset comparison table, where the comparison table includes a corresponding relationship between at least one motion velocity interval and an input sound source gain value; and determining a target input sound source gain value corresponding to the target motion speed interval according to a preset comparison table.
Preferably, the processor is further configured to adjust a current input sound source gain value of the MIC sensor input sound source to a preset gain value through the audio processor.
Preferably, the processor is further configured to determine whether the motion camera starts to move when the acceleration sensor and the speed sensor are in a sleep mode, and if so, switch the acceleration sensor and the speed sensor to a normal working mode; when the acceleration sensor and the speed sensor are in the normal working mode, judging whether the variation of the current acceleration is smaller than a preset acceleration increment threshold value or not, and whether the duration of the variation smaller than the acceleration increment threshold value exceeds a preset stationary time threshold value or not, wherein the variation comprises a difference value between the acceleration acquired by the acceleration sensor in a current preset sampling period and the acceleration acquired in a previous preset sampling period before the current preset sampling period; if so, determining that the moving camera is in a static state, and switching the acceleration sensor and the speed sensor into the sleep mode.
The embodiment of the invention also provides sports equipment, which comprises a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for completing mutual communication by the memory through the communication bus; a memory for storing a computer program; the processor is used for realizing the following steps when executing the program stored in the memory: determining the current acceleration and the current movement speed of the image acquisition mobile terminal; judging whether the direction of the sound inlet hole of the MIC sensor is consistent with the movement direction of the image acquisition mobile terminal or not according to the positive and negative conditions of the current acceleration and the change trend of the current movement speed; if so, turning down the current input sound source gain value of the MIC sensor.
An embodiment of the present invention further provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented: determining the current acceleration and the current movement speed of the image acquisition mobile terminal; judging whether the direction of the sound inlet hole of the MIC sensor is consistent with the movement direction of the image acquisition mobile terminal or not according to the positive and negative conditions of the current acceleration and the change trend of the current movement speed; if so, turning down the current input sound source gain value of the MIC sensor.
The embodiment of the invention provides a method for adjusting a sound source gain value of an MIC sensor, which is applied to an image acquisition mobile terminal, and comprises the following steps of firstly, acquiring the current acceleration and the current movement speed of the image acquisition mobile terminal; according to the current acceleration and the current movement speed, whether the orientation of a sound inlet hole of the MIC sensor is consistent with the movement direction of the image acquisition mobile terminal or not is judged, if yes, whether the current movement speed exceeds a preset speed threshold value or not is judged, and if yes, the current input sound source gain value of the MIC sensor is reduced so as to reduce wind noise input into the MIC sensor.
Therefore, the noise reduction method provided by the embodiment of the invention can reduce the wind noise input into the MIC sensor and improve the quality of the input sound source of the MIC sensor by reducing the current input sound source gain value of the MIC sensor in the scene that the sound inlet hole of the MIC sensor faces the same direction as the motion direction of the image acquisition mobile terminal. Of course, it is not necessary for any product or method of practicing the invention to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flowchart illustrating a method for adjusting a sound source gain of an MIC sensor according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for adjusting a sound source gain of an MIC sensor according to another embodiment of the present invention;
FIG. 3 is a block diagram of a motion camera in accordance with an embodiment of the present invention;
fig. 4 is a schematic view of a sports apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a noise reduction method for an adjustment method of a sound source gain value of an MIC sensor, which is applied to an image acquisition mobile terminal, wherein the image acquisition mobile terminal comprises the MIC sensor.
Referring to fig. 1, fig. 1 is a flowchart of a method for adjusting a sound source gain value of an MIC sensor according to an embodiment of the present invention, including the following steps:
in practical applications, in order to ensure the intensity of the MIC sensor logging in the sound source, the MIC sensor of the image capturing mobile terminal is generally exposed to the air. The user carries image acquisition mobile terminal to ride or under the condition of other high-speed motions, because high-speed motion can generate higher wind speed, has aggravated the wind noise of MIC sensor input audio frequency to, the wind speed is too big can lead to the input audio frequency of MIC sensor to produce the sound breaking phenomenon. Therefore, the embodiment of the invention improves the wind noise resistance of the MIC sensor by adjusting the sound source gain value aiming at the input sound source of the MIC sensor, so that the signal-to-noise ratio of the input sound source of the MIC sensor is better.
In the embodiment of the invention, the image acquisition mobile terminal can be a motion camera, is arranged on high-speed moving objects such as bicycles, motorcycles, yachts, parachutes and the like, and is used for recording or shooting in high-speed motion shooting; the image acquisition mobile terminal is provided with a microphone MIC sensor, an acceleration sensor, a speed sensor and a processor.
In the step, a processor of the image acquisition mobile terminal acquires the current acceleration and the current movement speed of the image acquisition mobile terminal according to a preset periodic interval; the preset periodic interval can be any value of 10ms, 20ms, 30ms, 40ms, 50ms, 60ms, 70ms, 80ms, 90ms and 100ms, or any value between 10ms and 100 ms; the processor may be a CPU chip, among others.
Specifically, the processor may determine a current acceleration of the image capturing mobile terminal through the acceleration sensor, and obtain a current moving speed of the image capturing mobile terminal through the speed sensor, where the speed sensor may be a Positioning sensor having a function of calculating a speed, such as a Global Positioning System (GPS) chip and a BeiDou Navigation Satellite System (BDS) chip.
For the motion speed, the positioning sensor with the function of calculating the speed may also be used to first obtain the position information of the current time point and the previous time point, then determine the distance difference between the two time points according to the position information of the two time points, and finally calculate the current motion speed of the image capturing mobile terminal according to the distance difference and the time difference between the two time points.
in this step, the processor of the image acquisition mobile terminal judges whether the sound inlet opening orientation of the MIC sensor is consistent with the movement direction of the image acquisition mobile terminal according to the positive and negative conditions of the current acceleration of the image acquisition mobile terminal and the change trend of the current movement speed of the image acquisition mobile terminal.
Specifically, when the current acceleration of the image acquisition mobile terminal is a positive value, or the current acceleration of the image acquisition mobile terminal is a negative value but the change trend of the movement speed is gradually reduced, the sound inlet direction of the MIC sensor is consistent with the movement direction of the image acquisition mobile terminal; when the current acceleration of the image acquisition mobile terminal is a negative value and the change trend of the movement speed is gradually increased, the direction of the sound inlet hole of the MIC sensor is inconsistent with the movement direction of the image acquisition mobile terminal.
It should be noted that, in general, the MIC sensor is located on the "front face" of the image capturing mobile terminal; when the sound inlet hole orientation of the MIC sensor is consistent with the moving direction of the image acquisition mobile terminal, it is shown that in the moving process of the image acquisition mobile terminal, the MIC sensor 'front face' positioned on the image acquisition mobile terminal faces towards the advancing direction of the image acquisition mobile terminal, therefore, the oncoming wind can directly irritate the sound inlet hole of the MIC sensor, and when the wind speed is high, the wind noise generated by the wind is serious, and the quality influence on the input audio frequency of the MIC sensor is large.
In a preferred embodiment of the present invention, if the sound inlet direction of the MIC sensor is not consistent with the moving direction of the image capturing mobile terminal, the method further includes:
and adjusting the current input sound source gain value of the input sound source of the MIC sensor to be a preset gain value.
Specifically, when the direction of the sound inlet of the MIC sensor is inconsistent with the moving direction of the image acquisition mobile terminal, it indicates that the MIC sensor located on the "front face" of the image acquisition mobile terminal faces away from the advancing direction of the image acquisition mobile terminal in the moving process of the image acquisition mobile terminal, the wind speed injected into the sound inlet of the MIC sensor is low, the wind noise generated by wind is slight, and the influence on the quality of the input audio of the MIC sensor is small, so that the current input audio source gain value of the input audio source of the MIC sensor can be adjusted to be a preset gain value; the preset gain value may be greater than the current input sound source gain value or smaller than the current input sound source gain value, and may be determined according to actual conditions.
And 103, if the sound inlet direction of the MIC sensor is consistent with the motion direction of the image acquisition mobile terminal, turning down the current input sound source gain value of the MIC sensor.
In this step, the processor of the image capturing mobile terminal reduces the current input sound source gain value of the MIC sensor through the audio chip of the image capturing mobile terminal under the condition that the sound inlet direction of the MIC sensor is consistent with the movement direction of the image capturing mobile terminal, so as to reduce the wind noise input to the MIC sensor.
In another preferred embodiment of the present invention, the "turning down the current input sound source gain value of the MIC sensor" in step 103 may specifically include:
determining a target input sound source gain value corresponding to the current motion speed according to a preset corresponding relation between the motion speed and the input sound source gain value;
judging whether the current input sound source gain value of the MIC sensor is consistent with the target input sound source gain value; if not, adjusting the current input sound source gain value to the target input sound source gain value.
In practical application, the corresponding relationship between a plurality of motion speeds and an input sound source gain value may be preset, one motion speed may correspond to one input sound source gain value, or a plurality of motion speeds may correspond to one input sound source gain value, and may be determined according to actual requirements.
Specifically, firstly, determining a target input sound source gain value corresponding to the current motion speed of the image acquisition mobile terminal according to a preset corresponding relationship between the motion speed and the input sound source gain value; it can be understood that the target input sound source gain value means that under the condition of the current motion speed, when the input audio gain value of the MIC sensor is the target input sound source gain value, the input audio quality of the MIC sensor is good, and the audio signal-to-noise ratio is high;
and then, judging whether the current input sound source gain value of the MIC sensor is consistent with the target input sound source gain value, if not, adjusting the current input sound source gain value of the MIC sensor to the target input sound source gain value, and if so, not adjusting the current input sound source gain value of the MIC sensor.
In practical applications, the corresponding relationship between the motion velocity and the input sound source gain value can be shown in table 1:
| speed of motion (m/s) | Target input sound source gain value (dB) |
| 2 | 30 |
| 5 | 20 |
| 10 | 10 |
TABLE 1
In table 1, when the motion speed is 2m/s, the corresponding target input sound source gain value is 30 dB; when the motion speed is 5m/s, the corresponding target input sound source gain value is 20 dB; when the motion speed is 10m/s, the corresponding target input sound source gain value is 10 dB. In the specific implementation process, the corresponding relationship between a plurality of motion speeds and the target input sound source gain value can be set according to the actual situation.
Further, in order to expand the application range of the method for adjusting the sound source gain value of the MIC sensor according to the embodiment of the present invention, in another preferred embodiment of the present invention, the step of determining the target input sound source gain value corresponding to the current motion speed according to a preset corresponding relationship between the motion speed and the input sound source gain value may specifically include:
determining a target motion speed interval where the current motion speed is located according to a preset comparison table, wherein the comparison table comprises a corresponding relation between at least one motion speed interval and an input sound source gain value;
and determining a target input sound source gain value corresponding to the target motion speed interval according to the comparison table.
In practical application, a comparison table may be preset, where the comparison table includes a corresponding relationship between a plurality of motion speed intervals and input sound source gain values, where one motion speed interval corresponds to one input sound source gain value; specifically, a target motion velocity interval where the current motion velocity is located is determined in the comparison table, and then a target input sound source gain value corresponding to the target velocity interval is determined in the comparison table. Therefore, the application range of the method for adjusting the sound source gain value of the MIC sensor in the embodiment of the invention can be expanded, and the working efficiency of a processor in the image acquisition mobile terminal can be improved.
In a specific implementation, to simplify the operation steps of the processor, before the step of turning down the current input source gain value of the MIC sensor, the method further comprises:
judging whether the current movement speed exceeds a preset speed threshold value or not;
and if the current movement speed exceeds a preset speed threshold value, executing the step of reducing the current input sound source gain value of the MIC sensor.
Specifically, the processor may turn down the current input sound source gain value of the MIC sensor only when the current motion speed of the image capturing mobile terminal exceeds a preset speed threshold, that is, the processor does not need to adjust the current input sound source gain value of the MIC sensor when the current motion speed of the image capturing mobile terminal is low and the wind noise input to the MIC sensor is slight; when the correspondence between the motion velocity and the input sound source gain value is described using the lookup table, the preset velocity threshold may be a lower limit value of the minimum motion velocity interval in the lookup table. Therefore, on the premise of ensuring the quality of the input sound source of the MIC sensor, the operation steps of the processor are simplified, and the working efficiency of the processor is improved.
In addition, in order to reduce the power consumption of the image capturing mobile terminal, in another preferred embodiment of the present invention, the method further comprises:
when the acceleration sensor and the speed sensor are in a sleep mode, judging whether the image acquisition mobile terminal starts to move, if so, switching the acceleration sensor and the speed sensor into a normal working mode;
when acceleration sensor with speed sensor is in during normal operating mode, judge whether the change volume of current acceleration is less than preset acceleration increment threshold value, just the change volume is less than whether the duration of acceleration increment threshold value exceeds preset dead time threshold value, the change volume includes acceleration sensor is in the acceleration of predetermineeing the sampling cycle collection at present, with the difference between the acceleration of predetermineeing the sampling cycle collection before the present sampling cycle.
Wherein the acceleration of the image capturing mobile terminal is determined by the acceleration sensor, and the movement velocity of the image capturing mobile terminal is determined by the velocity sensor.
In practical application, when a user needs to record or record sound by using the image acquisition mobile terminal in the motion process, the image acquisition mobile terminal can be set to be in an intelligent wind noise and sound breaking prevention mode, and at the moment, a processor in the image acquisition mobile terminal can adjust the current input sound source gain value of the MIC sensor in the image acquisition mobile terminal according to the method for adjusting the sound source gain value of the MIC sensor in the embodiment of the invention.
In order to save the battery power of the image acquisition mobile terminal, when the image acquisition mobile terminal is set to be in an intelligent wind noise and sound breaking prevention mode, an acceleration sensor and a speed sensor in the image acquisition mobile terminal are both in a sleep mode, wherein the acceleration sensor is set to be in a wake motion (wakemotion) mode after the sleep. Next, detecting whether the image acquisition mobile terminal starts to move or not by the dormant acceleration sensor; if the image acquisition mobile terminal starts to move, the acceleration sensor in a sleep mode, namely an interrupt trigger mode wakes up the processor, and the processor switches the acceleration sensor and the speed sensor from the sleep mode to a normal working mode, so that the acceleration sensor and the speed sensor can determine the current acceleration and the current movement speed of the image acquisition mobile terminal, and the processor can adjust the current input sound source gain value of the MIC sensor.
Meanwhile, under the scene that the acceleration sensor and the speed sensor are in a normal working mode, the processor continuously detects the motion state of the image acquisition mobile terminal through the acceleration sensor; when the processor determines that the variation of the acceleration of the image acquisition mobile terminal is smaller than a preset acceleration increment threshold through the acceleration sensor, and the duration time that the variation of the acceleration of the image acquisition mobile terminal is smaller than the preset acceleration increment threshold exceeds a preset static time threshold, the image acquisition mobile terminal is described to stop moving and be in a static state, wherein the variation of the acceleration refers to a difference value between the acceleration acquired by the acceleration sensor in a current preset sampling period and the acceleration acquired in a previous preset sampling period before the current preset sampling period, and the preset sampling period can be set according to an actual situation; at the moment, the processor switches the acceleration sensor and the speed sensor into a sleep mode so as to save the battery power of the image acquisition mobile terminal.
Therefore, in the embodiment of the invention, the wind noise input into the MIC sensor can be reduced by reducing the current input sound source gain value of the MIC sensor under the scene that the sound inlet hole of the MIC sensor faces the same direction as the motion direction of the image acquisition mobile terminal, so that the quality of the input sound source of the MIC sensor can be improved, the hardware upgrading of the image acquisition mobile terminal is not needed, and the hardware cost of the image acquisition mobile terminal is prevented from being increased.
The method for adjusting a sound source gain value of an MIC sensor according to an embodiment of the present invention is described in detail below with reference to an embodiment, and as shown in fig. 2, fig. 2 is another flowchart of the method for adjusting a sound source gain value of an MIC sensor according to an embodiment of the present invention:
at the moment, the image acquisition mobile terminal is set to be in an intelligent wind noise and sound breaking prevention mode; when the acceleration sensor and the speed sensor are in the sleep mode, the current acceleration and the current movement speed of the image acquisition mobile terminal cannot be determined, so that the power consumption is reduced.
it should be noted that, when the motion acceleration sensor and the speed sensor are in the normal operation mode, the current acceleration and the current movement speed of the image capturing mobile terminal may be determined.
wherein the preset gain value can be set according to actual conditions.
In this step, after the current input sound source gain value of the MIC sensor input sound source is adjusted to the preset gain value, the process returns to step 203, and it is determined whether the current input sound source gain value of the MIC sensor input sound source needs to be adjusted according to the acceleration and the motion speed.
specifically, when the processor determines that the variation of the acceleration of the image capturing mobile terminal is smaller than the preset acceleration increment threshold through the acceleration sensor, and the duration that the variation of the acceleration of the image capturing mobile terminal is smaller than the preset acceleration increment threshold exceeds the preset still time threshold, it indicates that the image capturing mobile terminal has stopped moving and is in a still state, where the variation of the acceleration may specifically be a difference between the acceleration captured by the acceleration sensor in a current preset sampling period and the acceleration captured by a previous preset sampling period before the current preset sampling period; the stationary time threshold may be preset to 60S, and the acceleration increment threshold may be preset to 0.2G (9.81M/S for 1G)2) Of course, the setting can be flexibly set according to actual conditions.
in the step, when the image acquisition mobile terminal is in a static state, the current acceleration and the current motion speed do not need to be determined, so that the acceleration sensor and the speed sensor can be switched to a sleep mode again; after the acceleration sensor and the speed sensor are switched to the sleep mode, the step 201 is executed again, so that the acceleration sensor and the speed sensor are switched to the normal working mode again when the image acquisition mobile terminal starts to move.
specifically, the comparison table is shown in Table 2,
| interval of motion speed (m/s) | Target input sound source gain value (dB) |
| [2,5) | 30 |
| [5,10) | 20 |
| [10,+∞) | 10 |
TABLE 2
In table 2, the correspondence relationship between the three motion speed ranges [2,5), [5,10) and [10, + ∞) and the target input sound source gain value is listed, wherein the target input sound source gain value corresponding to the motion speed range [2,5) is 30dB, the target input sound source gain value corresponding to the motion speed range [5,10) is 20dB, and the target input sound source gain value corresponding to the motion speed range [10, + ∞) is 10 dB; wherein the lower limit value of the minimum movement speed interval is 2 m/s.
In steps 212 and 213, after adjusting the current input audio source gain value of the MIC sensor to the target input audio source gain value or determining not to adjust the current input audio source gain value of the MIC sensor, the method returns to step 203, and continues to determine whether the current input audio source gain value of the MIC sensor input audio source needs to be adjusted according to the acceleration and the motion speed.
In practical application, when a user rides from a high place to a low place, the lens of the image acquisition mobile terminal faces forward, the sound inlet hole of the MIC sensor is positioned on the front face of the lens of the image acquisition mobile terminal, and the current input sound source gain value of the MIC sensor is adjusted according to the processing steps shown in fig. 2;
when a user starts to ride from a high place to a low place, an acceleration sensor and a speed sensor of the image acquisition mobile terminal are switched to a normal working mode; the riding speed of a user, namely the moving speed of the image acquisition mobile terminal is faster and faster, until the current moving speed of the image acquisition mobile terminal exceeds the lower limit value of the minimum moving speed interval in the comparison table, the processor of the image acquisition mobile terminal starts to gradually reduce the current input sound source gain value of the MIC sensor through the audio controller according to the moving speed interval in which the current moving speed is located;
when the user rides to the flat ground and then starts deceleration, the movement speed of the image acquisition mobile terminal is gradually reduced from 10ms to 2 m/s; because the wind noise generated when the motion speed is low is also small, if the current input sound source gain value of the MIC sensor is still kept at the target input sound source gain value 10dB corresponding to the motion speed of 10ms, the audio volume input to the MIC sensor is too low; then, the processor of the image acquisition mobile terminal can gradually increase the current input sound source gain value of the MIC sensor through the audio controller, and finally increase the current input sound source gain value of the MIC sensor to a target input sound source gain value 30DB corresponding to the motion speed of 2ms so as to ensure the audio volume input into the MIC sensor;
and when the user finally stops and the image acquisition mobile terminal is determined to be in a static state, the processor of the image acquisition mobile terminal switches the acceleration sensor and the speed sensor into a sleep mode so as to reduce the power consumption of the battery of the image acquisition mobile terminal.
Therefore, the specific embodiment can adjust the current input sound source gain value of the MIC sensor according to the motion speed of the image acquisition mobile terminal, so as to reduce the wind noise input into the MIC sensor, improve the audio quality input into the MIC sensor by the user, save the electric quantity, and prolong the standby time of the image acquisition mobile terminal.
Fig. 3 shows a structure of a motion camera according to an embodiment of the present invention, where in fig. 3, a microphone MIC sensor 302, an acceleration sensor 303, a speed sensor 304, a processor 305, and an audio processor 306 are disposed on the motion camera 301;
the acceleration sensor 303 is configured to determine a current acceleration of the motion camera 301;
the speed sensor 304 is used for determining the current motion speed of the motion camera 301;
the processor 305 is configured to determine whether the sound inlet direction of the MIC sensor 302 is consistent with the motion direction of the motion camera 301 according to the positive and negative conditions of the current acceleration and the change trend of the current motion speed; if so, the current input source gain value of the MIC sensor 302 is turned down by the audio processor 306.
In practical applications, the audio processor 306 may be an audio chip; the processor 305 attenuates or increases the gain of the MIC sensor by setting the parameters related to the input audio source gain value of the MIC sensor 302 via the audio chip 306 according to a preset period of 5ms by starting a timer, such as a 200HZ timer.
Preferably, the processor 305 is further configured to determine whether the current movement speed exceeds a preset speed threshold; if the current motion speed exceeds a preset speed threshold, the current input sound source gain value of the MIC sensor 302 is turned down through the audio processor 306.
Preferably, the processor 305 is specifically configured to determine a target input sound source gain value corresponding to the current motion speed according to a preset corresponding relationship between the motion speed and the input sound source gain value; judging whether the current input sound source gain value of the MIC sensor 302 is consistent with the target input sound source gain value; if not, the current input audio source gain value is adjusted to the target input audio source gain value through the audio processor 306.
Preferably, the processor 305 is specifically configured to determine a target motion velocity interval where the current motion velocity is located according to a preset comparison table, where the comparison table includes a corresponding relationship between at least one motion velocity interval and an input sound source gain value; and determining a target input sound source gain value corresponding to the target motion speed interval according to a preset comparison table.
Preferably, the processor 305 is further configured to adjust, by the audio processor 306, a current input sound source gain value of the input sound source of the MIC sensor 302 to a preset gain value.
Preferably, the processor 305 is further configured to determine whether the motion camera 301 starts to move when the acceleration sensor 303 and the speed sensor 304 are in the sleep mode, and if so, switch the acceleration sensor 303 and the speed sensor 304 to the normal operation mode; when the acceleration sensor 303 and the speed sensor 304 are in the normal operating mode, determining whether a variation of the current acceleration is smaller than a preset acceleration increment threshold, and whether a duration of the variation smaller than the acceleration increment threshold exceeds a preset stationary time threshold, where the variation includes a difference between an acceleration collected by the acceleration sensor 303 in a current preset sampling period and an acceleration collected by a previous preset sampling period before the current preset sampling period; if yes, the motion camera 301 is determined to be in a stationary state, and the acceleration sensor 303 and the speed sensor 304 are switched to the sleep mode.
In addition, in a specific implementation process, in addition to the motion camera according to the embodiment of the present invention, other adjustment methods, such as a PID algorithm, may also be used to implement the optimal adjustment of the sound source gain value of the MIC sensor, in addition to the method for adjusting the sound source gain value of the MIC sensor according to the embodiment of the present invention.
Therefore, in the embodiment of the invention, the wind noise input into the MIC sensor can be reduced by reducing the current input sound source gain value of the MIC sensor under the scene that the sound inlet hole of the MIC sensor faces the same direction as the motion direction of the motion camera, so that the quality of the input sound source of the MIC sensor can be improved, the hardware upgrade of the motion camera is not needed, and the hardware cost of the motion camera is prevented from being increased.
An embodiment of the present invention further provides an exercise apparatus, as shown in fig. 4, fig. 4 is a schematic diagram of the exercise apparatus according to the embodiment of the present invention. The sports device comprises a processor 401, a communication interface 402, a memory 403 and a communication bus 404, wherein the processor 401, the communication interface 402, the memory 403 communicate with each other via the communication bus 404,
a memory 403 for storing a computer program;
the processor 401, when executing the program stored in the memory xx3, implements the following steps:
determining a current acceleration and a current movement velocity of the moving device;
judging whether the direction of the sound inlet hole of the MIC sensor is consistent with the movement direction of the movement equipment or not according to the positive and negative conditions of the current acceleration and the change trend of the current movement speed;
if so, turning down the current input sound source gain value of the MIC sensor.
The communication bus mentioned in the above sports apparatus may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
The communication interface is used for communication between the sports equipment and other equipment.
The Memory may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.
The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component.
Therefore, the sports equipment provided by the embodiment of the invention can reduce the wind noise input into the MIC sensor by reducing the current input sound source gain value of the MIC sensor under the scene that the sound inlet hole of the MIC sensor faces the same direction as the movement direction of the sports equipment, not only can improve the quality of the input sound source of the MIC sensor, but also does not need to upgrade the hardware of the sports equipment, and avoids increasing the hardware cost of the sports equipment.
An embodiment of the present invention further provides a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:
determining the current acceleration and the current movement speed of the image acquisition mobile terminal;
judging whether the direction of the sound inlet hole of the MIC sensor is consistent with the movement direction of the image acquisition mobile terminal or not according to the positive and negative conditions of the current acceleration and the change trend of the current movement speed;
if so, turning down the current input sound source gain value of the MIC sensor.
Therefore, the computer-readable storage medium provided by the embodiment of the invention can reduce the wind noise input into the MIC sensor by reducing the current input sound source gain value of the MIC sensor in the scene that the sound inlet direction of the MIC sensor is the same as the motion direction of the image acquisition mobile terminal, thereby not only improving the quality of the input sound source of the MIC sensor, but also avoiding hardware cost increase of the image acquisition mobile terminal without hardware upgrade of the image acquisition mobile terminal.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (14)
1. A method for adjusting a sound source gain value of a microphone MIC sensor is applied to an image acquisition mobile terminal, the image acquisition mobile terminal comprises the MIC sensor, and the method comprises the following steps:
determining the current acceleration and the current movement speed of the image acquisition mobile terminal;
judging whether the direction of the sound inlet hole of the MIC sensor is consistent with the movement direction of the image acquisition mobile terminal or not according to the positive and negative conditions of the current acceleration and the change trend of the current movement speed;
if so, turning down the current input sound source gain value of the MIC sensor.
2. The method of claim 1, wherein the step of turning down the current input source gain value of the MIC sensor is preceded by the method further comprising:
judging whether the current movement speed exceeds a preset speed threshold value or not;
and if the current movement speed exceeds a preset speed threshold value, executing the step of reducing the current input sound source gain value of the MIC sensor.
3. The method of claim 1 or 2, wherein the step of reducing the current input source gain value of the MIC sensor comprises:
determining a target input sound source gain value corresponding to the current motion speed according to a preset corresponding relation between the motion speed and the input sound source gain value;
judging whether the current input sound source gain value of the MIC sensor is consistent with the target input sound source gain value; if not, adjusting the current input sound source gain value to the target input sound source gain value.
4. The method according to claim 3, wherein the step of determining the target input sound source gain value corresponding to the current motion velocity according to the preset corresponding relationship between the motion velocity and the input sound source gain value comprises:
determining a target motion speed interval where the current motion speed is located according to a preset comparison table, wherein the comparison table comprises a corresponding relation between at least one motion speed interval and an input sound source gain value;
and determining a target input sound source gain value corresponding to the target motion speed interval according to the comparison table.
5. The method according to claim 1, if the sound inlet hole of the MIC sensor is not oriented in the same direction as the moving direction of the image capturing mobile terminal, the method further comprising:
and adjusting the current input sound source gain value of the input sound source of the MIC sensor to be a preset gain value.
6. The method according to claim 1, wherein the image capturing mobile terminal further comprises an acceleration sensor and a velocity sensor; determining, by the acceleration sensor, an acceleration of the image capturing mobile terminal, and determining, by the velocity sensor, a motion velocity of the image capturing mobile terminal;
the method further comprises the following steps:
when the acceleration sensor and the speed sensor are in a sleep mode, judging whether the image acquisition mobile terminal starts to move, if so, switching the acceleration sensor and the speed sensor into a normal working mode;
when the acceleration sensor and the speed sensor are in the normal working mode, judging whether the variation of the current acceleration is smaller than a preset acceleration increment threshold value or not, and whether the duration of the variation smaller than the acceleration increment threshold value exceeds a preset stationary time threshold value or not, wherein the variation comprises a difference value between the acceleration acquired by the acceleration sensor in a current preset sampling period and the acceleration acquired in a previous preset sampling period before the current preset sampling period;
if so, determining that the image acquisition mobile terminal is in a static state, and switching the acceleration sensor and the speed sensor into the sleep mode.
7. A motion camera is characterized in that a microphone MIC sensor, an acceleration sensor, a speed sensor, a processor and an audio processor are arranged on the motion camera;
the acceleration sensor is used for determining the current acceleration of the motion camera;
the speed sensor is used for determining the current motion speed of the motion camera;
the processor is used for judging whether the direction of the sound inlet hole of the MIC sensor is consistent with the movement direction of the movement camera or not according to the positive and negative conditions of the current acceleration and the change trend of the current movement speed; if so, turning down the current input sound source gain value of the MIC sensor through the audio processor.
8. Motion camera according to claim 7,
the processor is further configured to determine whether the current movement speed exceeds a preset speed threshold; and if the current movement speed exceeds a preset speed threshold value, reducing the current input sound source gain value of the MIC sensor through the audio processor.
9. Motion camera according to claim 7 or 8,
the processor is specifically configured to determine a target input sound source gain value corresponding to the current motion speed according to a preset correspondence between the motion speed and the input sound source gain value; judging whether the current input sound source gain value of the MIC sensor is consistent with the target input sound source gain value; if not, the current input sound source gain value is adjusted to the target input sound source gain value through the audio processor.
10. Motion camera according to claim 9,
the processor is specifically configured to determine a target motion velocity interval where the current motion velocity is located according to a preset comparison table, where the comparison table includes a corresponding relationship between at least one motion velocity interval and an input sound source gain value; and determining a target input sound source gain value corresponding to the target motion speed interval according to a preset comparison table.
11. Motion camera according to claim 7,
the processor is further configured to adjust a current input sound source gain value of the MIC sensor input sound source to a preset gain value through the audio processor.
12. Motion camera according to claim 7,
the processor is further configured to determine whether the motion camera starts to move when the acceleration sensor and the speed sensor are in a sleep mode, and switch the acceleration sensor and the speed sensor to a normal working mode if the motion camera starts to move; when the acceleration sensor and the speed sensor are in the normal working mode, judging whether the variation of the current acceleration is smaller than a preset acceleration increment threshold value or not, and whether the duration of the variation smaller than the acceleration increment threshold value exceeds a preset stationary time threshold value or not, wherein the variation comprises a difference value between the acceleration acquired by the acceleration sensor in a current preset sampling period and the acceleration acquired in a previous preset sampling period before the current preset sampling period; if so, determining that the moving camera is in a static state, and switching the acceleration sensor and the speed sensor into the sleep mode.
13. Sports equipment is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing mutual communication by the memory through the communication bus;
a memory for storing a computer program;
a processor for implementing the method steps of any of claims 1-6 when executing a program stored in the memory.
14. A computer-readable storage medium, characterized in that a computer program is stored in the computer-readable storage medium, which computer program, when being executed by a processor, carries out the method steps of any one of claims 1 to 6.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103079013A (en) * | 2013-01-17 | 2013-05-01 | 广东欧珀移动通信有限公司 | Application operation method and device of mobile terminal and mobile terminal |
| JP2014216660A (en) * | 2013-04-22 | 2014-11-17 | パナソニック株式会社 | Portable terminal equipment |
| CN106464996A (en) * | 2014-01-24 | 2017-02-22 | 布拉吉有限公司 | Multifunctional headphone system for sports activities |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350856A (en) * | 2008-09-03 | 2009-01-21 | 嘉兴闻泰通讯科技有限公司 | Mobile phone capable of automatically regulating earpiece sound volume based on movement velocity and method thereof |
| CN102969002B (en) * | 2012-11-28 | 2014-09-03 | 厦门大学 | Microphone array speech enhancement device capable of suppressing mobile noise |
| KR102282366B1 (en) * | 2013-06-03 | 2021-07-27 | 삼성전자주식회사 | Method and apparatus of enhancing speech |
| CN104158958B (en) * | 2014-07-28 | 2016-08-17 | 中山大学 | A kind of intelligent terminal method for preventing misoperation |
| CN104301534A (en) * | 2014-10-09 | 2015-01-21 | 广东小天才科技有限公司 | Method and device for intelligently adjusting scene mode of mobile terminal |
| CN104363543B (en) * | 2014-11-10 | 2017-10-20 | 广东欧珀移动通信有限公司 | The method of adjustment and device of microphone frequency response curve |
| CN106486127A (en) * | 2015-08-25 | 2017-03-08 | 中兴通讯股份有限公司 | A kind of method of speech recognition parameter adjust automatically, device and mobile terminal |
| CN106486124A (en) * | 2015-08-28 | 2017-03-08 | 中兴通讯股份有限公司 | A kind of method of speech processes and terminal |
| CN106501834A (en) * | 2016-10-11 | 2017-03-15 | 上海保橙网络科技有限公司 | A kind of method of use mobile phone automatic decision user movement behavior |
| CN106791154A (en) * | 2016-12-31 | 2017-05-31 | 安徽金鼎机电装备制造有限公司 | The method and mobile terminal of a kind of volume adjusting |
-
2017
- 2017-06-12 CN CN201710438854.1A patent/CN109036445B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103079013A (en) * | 2013-01-17 | 2013-05-01 | 广东欧珀移动通信有限公司 | Application operation method and device of mobile terminal and mobile terminal |
| JP2014216660A (en) * | 2013-04-22 | 2014-11-17 | パナソニック株式会社 | Portable terminal equipment |
| CN106464996A (en) * | 2014-01-24 | 2017-02-22 | 布拉吉有限公司 | Multifunctional headphone system for sports activities |
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