CN107682802B - Method and device for debugging sound effect of audio equipment - Google Patents
Method and device for debugging sound effect of audio equipment Download PDFInfo
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- CN107682802B CN107682802B CN201711089616.0A CN201711089616A CN107682802B CN 107682802 B CN107682802 B CN 107682802B CN 201711089616 A CN201711089616 A CN 201711089616A CN 107682802 B CN107682802 B CN 107682802B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
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- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
Abstract
The invention discloses a method and a device for debugging sound effect of audio equipment, wherein the method comprises the following steps: the method comprises the steps of detecting limit values and standard values of all frequency points in an equalizer of the audio equipment when the audio equipment is in all audio modes, determining frequency response curves of the audio equipment in all audio modes according to the limit values and the standard values, determining target frequency response curves corresponding to target audio modes contained in debugging instructions in the frequency response curves of all audio modes after the debugging instructions are received, and adjusting all frequency points in the equalizer of the audio equipment by using the target frequency response curves. Compared with the prior art, when the sound effect mode is adjusted, each frequency point in the equalizer of the audio equipment is adjusted according to the target frequency response curve corresponding to the target sound effect mode to be adjusted, so that the condition that the sound effect mode switching is possibly invalid when the volume of the audio equipment is large can be effectively avoided, and the effectiveness of sound effect adjustment is guaranteed.
Description
Technical Field
The invention relates to the technical field of audio debugging, in particular to a method and a device for debugging sound effect of audio equipment.
Background
At present, before using, terminal devices with loudspeaker output, such as televisions, interactive electronic whiteboards and the like, need to debug each sound effect mode thereof, so that the sound effect of each sound effect mode can accord with the corresponding application occasion.
The existing debugging method generally sets the gain value of an equalizer in a user menu according to different application requirements to obtain a corresponding frequency response curve. The debugging method has the following defects: for different sound effect modes, because the output power increases with the frequency response gain and may exceed the maximum power of the loudspeaker, a DRC (Dynamic range control) threshold is required to limit the output amplitude, which may cause the condition that the sound effect mode switching is invalid when the volume is large.
Disclosure of Invention
The invention mainly aims to provide a method and a device for debugging the sound effect of audio equipment, and aims to solve the technical problem that the sound effect mode switching may be invalid when the volume of the audio equipment is large in the prior art.
In order to achieve the above object, a first aspect of the present invention provides a method for debugging sound effects of an audio device, the method comprising:
detecting the limit value and the standard value of each frequency point in an equalizer of the audio equipment when the audio equipment is in each sound effect mode;
determining a frequency response curve of the audio equipment in each sound effect mode according to the limit value and the standard value;
after a debugging instruction is received, determining a target frequency response curve corresponding to a target audio mode contained in the debugging instruction in the frequency response curves of the sound effect modes, and adjusting each frequency point in the equalizer of the audio equipment by using the target frequency response curve.
Optionally, when the audio device is detected to be in each sound effect mode, the step of detecting the limit value and the standard value of each frequency point in the equalizer of the audio device includes:
detecting the value of each frequency point in the equalizer of the audio equipment when the audio equipment is in a common mode, and determining the detected value as the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode;
adjusting the output power of the audio equipment to a rated output power, respectively detecting the value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode, and determining the detected value as the limit value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
Optionally, the step of determining the frequency response curve of the audio device in each sound effect mode according to the limit value and the standard value includes:
respectively calculating the difference value between the limiting value and the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode, and taking the calculated difference value as the gain value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode;
and determining a frequency response curve of the audio equipment in each sound effect mode according to the standard value and the gain value corresponding to each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
Optionally, the step of determining the frequency response curve of the audio device in each sound effect mode according to the standard value and the gain value corresponding to each frequency point in the equalizer of the audio device when the audio device is in each sound effect mode includes:
respectively determining frequency points needing to be enhanced and reduced in an equalizer of the audio equipment when the audio equipment is in each sound effect mode;
taking the sum of the standard value and the gain value corresponding to the frequency point needing to be enhanced as the sound pressure level of the frequency point needing to be enhanced, and taking the difference between the standard value and the gain value corresponding to the frequency point needing to be reduced as the sound pressure level of the frequency point needing to be reduced;
and determining a frequency response curve when the audio equipment is in each sound effect mode based on the sound pressure level of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
Optionally, the step of adjusting each frequency point in the equalizer of the audio device by using the target frequency response curve includes:
and adjusting the sound pressure level of each frequency point in the audio equipment equalizer according to the target frequency response curve, so that the sound pressure level of each frequency point in the audio equipment equalizer is the same as the sound pressure level of each frequency point in the target frequency response curve.
In order to achieve the above object, a second aspect of the present invention provides an apparatus for debugging sound effects of an audio device, the apparatus comprising:
the detection module is used for detecting the limiting value and the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode;
the determining module is used for determining a frequency response curve of the audio equipment in each sound effect mode according to the limiting value and the standard value;
and the adjusting module is used for determining a target frequency response curve corresponding to a target audio mode contained in the debugging instruction in the frequency response curves of the sound effect modes after receiving the debugging instruction, and adjusting each frequency point in the equalizer of the audio equipment by using the target frequency response curve.
Optionally, the detection module includes:
the first detection module is used for detecting the value of each frequency point in the equalizer of the audio equipment when the audio equipment is in a common mode, and determining the detected value as the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode;
and the second detection module is used for adjusting the output power of the audio equipment to the rated output power, respectively detecting the value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode, and determining the detected value as the limit value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
Optionally, the determining module includes:
the computing module is used for respectively computing the difference value between the limiting value and the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode, and taking the computed difference value as the gain value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode;
and the curve determining module is used for determining the frequency response curve of the audio equipment in each sound effect mode according to the standard value corresponding to each frequency point in the equalizer of the audio equipment and the gain value when the audio equipment is in each sound effect mode.
Optionally, the curve determining module is configured to:
respectively determining frequency points needing to be enhanced and reduced in an equalizer of the audio equipment when the audio equipment is in each sound effect mode;
taking the sum of the standard value and the gain value corresponding to the frequency point needing to be enhanced as the sound pressure level of the frequency point needing to be enhanced, and taking the difference between the standard value and the gain value corresponding to the frequency point needing to be reduced as the sound pressure level of the frequency point needing to be reduced;
and determining a frequency response curve when the audio equipment is in each sound effect mode based on the sound pressure level of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
Optionally, the adjusting module is configured to:
and adjusting the sound pressure level of each frequency point in the audio equipment equalizer according to the target frequency response curve, so that the sound pressure level of each frequency point in the audio equipment equalizer is the same as the sound pressure level of each frequency point in the target frequency response curve.
The method for debugging the sound effect of the audio equipment comprises the following steps: the method comprises the steps of detecting limit values and standard values of all frequency points in an equalizer of the audio equipment when the audio equipment is in all audio modes, determining frequency response curves of the audio equipment in all audio modes according to the limit values and the standard values, determining target frequency response curves corresponding to target audio modes contained in debugging instructions in the frequency response curves of all audio modes after the debugging instructions are received, and adjusting all frequency points in the equalizer of the audio equipment by using the target frequency response curves. Compared with the prior art, the method and the device have the advantages that the limiting value and the standard value of each frequency point in the equalizer of the audio equipment are used for determining the frequency response curve of the audio equipment in each sound effect mode when the audio equipment is in each sound effect mode, and each frequency point in the equalizer of the audio equipment is adjusted according to the target frequency response curve corresponding to the target sound effect mode to be adjusted when the sound effect mode is adjusted, so that the condition that the sound effect mode switching is possibly invalid when the volume of the audio equipment is high can be effectively avoided, and the effectiveness of sound effect adjustment is guaranteed.
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 debugging audio effects of an audio device according to a first embodiment of the present invention;
FIG. 2 is a flow chart illustrating a detailed step of step 102 according to a first embodiment of the present invention;
FIG. 3 is a block diagram of a program module of a debugging apparatus for audio effects of an audio device according to a second embodiment of the present invention;
fig. 4 is a schematic diagram of a refinement procedure module of the determination module 302 according to the second embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent 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.
In the prior art, when the volume of the audio device is large, the switching of the sound effect mode may be ineffective.
In order to solve the technical problems, the invention provides a method for debugging the sound effect of audio equipment, which simultaneously determines a frequency response curve of the audio equipment in each sound effect mode by using the limit value and the standard value of each frequency point in an equalizer of the audio equipment when the audio equipment is in each sound effect mode, and adjusts each frequency point in the equalizer of the audio equipment according to a target frequency response curve corresponding to a target sound effect mode to be adjusted when the sound effect mode is adjusted, so that the condition that the sound effect mode is possibly invalid when the volume of the audio equipment is larger can be effectively avoided, and the effectiveness of sound effect adjustment is ensured.
Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a method for debugging audio effects of an audio device according to a first embodiment of the present invention, in which the method for debugging audio effects of an audio device according to the present invention includes:
101, detecting the limit value and the standard value of each frequency point in an equalizer of the audio equipment when the audio equipment is in each sound effect mode;
the sound effects refer to effects produced by sounds, and the sounds include musical tones and effect sounds, including digital sound effects, ambient sound effects, and MP3 sound effects. Digital sound effect modes such as MP3 are generally classified into six types, which are a classical music mode, a pop music mode, a jazz mode, a rock mode, a normal mode, and an automatic change mode, respectively. In addition, the sound effect modes include bass, midrange and treble.
The equalizer is an electronic device capable of adjusting the amplification of electric signals with various frequency components, compensating the defects of a loudspeaker and a sound field by adjusting the electric signals with various frequencies, and compensating and modifying various sound sources and other special effects. An equalizer typically has a plurality of adjustable frequency points, and generally, when there are many adjustable frequency points on the equalizer, the equalizer is called as how many segments of the equalizer, for example, a 10-segment equalizer means that there are 10 adjustable nodes. In addition, many common sound boxes for home use have simple high and low sound gain adjustment knobs, which we can consider as a two-stage analog equalizer.
In the embodiment of the invention, when the sound effect of the audio equipment is debugged and the audio equipment is detected to be in each sound effect mode, the limit value and the standard value of each frequency point in the equalizer of the audio equipment are detected. Specifically, the step 101 includes the following steps:
step A: detecting the value of each frequency point in the equalizer of the audio equipment when the audio equipment is in a common mode, and determining the detected value as the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode;
in the embodiment of the invention, when the standard value of each frequency point in the equalizer of the audio equipment is detected when the audio equipment is in each sound effect mode, the sound effect mode of the audio equipment is firstly adjusted to a common mode, then the value of each frequency point in the equalizer of the audio equipment at the moment is detected, and the detected value is determined as the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
For example, assuming that the equalizer is a 5-segment equalizer, the standard value of each bin in the equalizer of the audio device may be defined as (S1, S2, S3, S4, S5) when the audio device is in a certain sound effect mode.
And B: adjusting the output power of the audio equipment to a rated output power, respectively detecting the value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode, and determining the detected value as the limit value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
In the embodiment of the invention, when the limiting value of each frequency point in an equalizer of the audio equipment is detected when the audio equipment is in each sound effect mode, the output power of the audio equipment is adjusted to the rated output power, then the value of each frequency point in the equalizer of the audio equipment is detected when the audio equipment is in each sound effect mode, and the detected value is determined as the limiting value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
For example, when the audio device is in the bass mode, the limit values of the frequency points in the equalizer of the audio device are detected to be (M1, M2, M3, M4, M5).
Step 102, determining a frequency response curve of the audio equipment in each sound effect mode according to the limit value and the standard value;
in the embodiment of the invention, when the audio equipment is detected to be in each sound effect mode, after the limiting value and the standard value of each frequency point in the equalizer of the audio equipment are detected, the frequency response curve of the audio equipment in each sound effect mode can be determined according to the limiting value and the standard value.
In the embodiment of the invention, when a debugging instruction is received, each frequency point in the equalizer of the audio equipment can be adjusted according to a target sound effect mode which the debugging instruction wants to debug and a target frequency response curve corresponding to the target sound effect mode.
Specifically, according to the target frequency response curve, the sound pressure level of each frequency point in the audio equipment equalizer is adjusted, so that the sound pressure level of each frequency point in the audio equipment equalizer is the same as the sound pressure level of each frequency point in the target frequency response curve, that is, the sound effect mode of the audio equipment can be adjusted to the target sound effect mode.
Compared with the prior art, the method for debugging the sound effect of the audio equipment provided by the embodiment of the invention determines the frequency response curve of the audio equipment in each sound effect mode by using the limit value and the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode, and adjusts each frequency point in the equalizer of the audio equipment according to the target frequency response curve corresponding to the target sound effect mode to be adjusted when the sound effect mode is adjusted, so that the condition that the sound effect mode switching is possibly invalid when the volume of the audio equipment is larger can be effectively avoided, and the effectiveness of sound effect adjustment is ensured.
Further, based on the first embodiment of the present invention, referring to fig. 2, fig. 2 is a schematic flowchart of a detailed step of step 102 in the first embodiment of the present invention, in the embodiment of the present invention, the step 102 includes:
in the embodiment of the invention, when the frequency response curve of the audio equipment in each sound effect mode is determined, the difference value between the limiting value and the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode is calculated respectively, and then the calculated difference value is used as the gain value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
For example, assuming that the equalizer is a 5-segment equalizer, and assuming that the audio device is currently in a bass mode, and the standard values of the frequency points in the equalizer of the audio device are (S1, S2, S3, S4, S5) and the limit values are (M1, M2, M3, M4, M5), when the audio device is in the bass mode, the gain values of the frequency points in the equalizer of the audio device are ((M1-S1), (M2-S2), (M3-S3), (M4-S4), (M5-S5), respectively).
In the embodiment of the invention, when the audio equipment is determined to be in each sound effect mode, after the gain value corresponding to each frequency point in the equalizer of the audio equipment is determined, the frequency response curve of the audio equipment in each sound effect mode can be determined according to each gain value.
Specifically, the step 202 includes the following steps:
step a: respectively determining frequency points needing to be enhanced and reduced in an equalizer of the audio equipment when the audio equipment is in each sound effect mode;
it can be understood that adjusting the sound effect mode of the audio device is to adjust the values of all frequency points in the equalizer of the audio device, for example, when the audio device is adjusted to the bass mode, the values of all frequency points in the equalizer of the audio device need to be reduced; when the audio equipment is adjusted to the middle and low sound mode, the values of a part of frequency points only need to be reduced, and then the rest frequency points are enhanced.
Step b: taking the sum of the standard value and the gain value corresponding to the frequency point needing to be enhanced as the sound pressure level of the frequency point needing to be enhanced, and taking the difference between the standard value and the gain value corresponding to the frequency point needing to be reduced as the sound pressure level of the frequency point needing to be reduced;
in the embodiment of the present invention, it is assumed that the equalizer is a 5-segment equalizer, and when the audio device is in the bass mode, the first three frequency points in the equalizer of the audio device need to be enhanced, and the second two frequency points need to be reduced, when the audio device is in the bass mode, the sound pressure level of each frequency point is: v1＝S1+k1(M1-S1)、V2＝S2+k2(M2-S2)、V3＝S3+k3(M3-S3)、V4＝S4-k4(M4-S4)、V5＝S5-k5(M5-S5) (ii) a Wherein k is1、k2、k3、k4、k5The adjustment coefficients corresponding to the frequency points can be obtained by technicians through a large number of adjustment experiments.
Step c: and determining a frequency response curve when the audio equipment is in each sound effect mode based on the sound pressure level of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
In the embodiment of the invention, when the audio equipment is determined to be in each sound effect mode, after the sound pressure level of each frequency point in the equalizer of the audio equipment is determined, the frequency response curve of the audio equipment in each sound effect mode can be determined according to the sound pressure level of each frequency point.
The debugging method for the sound effect of the audio equipment provided by the embodiment of the invention comprises the steps of respectively calculating the difference value between the limiting value and the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode, and using the calculated difference value as the gain value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode, then determining the frequency response curve of the audio equipment in each sound effect mode according to the standard value and the gain value corresponding to each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode, so that each frequency point in the equalizer of the audio equipment can be adjusted according to the target frequency response curve corresponding to the target sound effect mode to be adjusted when the sound effect mode is adjusted, thereby effectively avoiding the condition that the sound effect mode switching is possibly invalid when the volume of the audio equipment is larger, the effectiveness of sound effect regulation is guaranteed.
In order to solve the above technical problem, the present invention further provides a debugging apparatus for audio device audio effects, specifically referring to fig. 3, fig. 3 is a schematic diagram of a program module of the debugging apparatus for audio device audio effects according to a second embodiment of the present invention, where the debugging apparatus for audio device audio effects includes:
the detection module 301 is configured to detect a limit value and a standard value of each frequency point in an equalizer of the audio device when the audio device is in each sound effect mode;
in the embodiment of the present invention, the sound effect refers to an effect produced by sound, and the sound includes musical tones and effect sounds, including digital sound effects, ambient sound effects, and MP3 sound effects. Digital sound effect modes such as MP3 are generally classified into six types, which are a classical music mode, a pop music mode, a jazz mode, a rock mode, a normal mode, and an automatic change mode, respectively. In addition, the sound effect modes include bass, midrange and treble.
The equalizer is an electronic device capable of adjusting the amplification of electric signals with various frequency components, compensating the defects of a loudspeaker and a sound field by adjusting the electric signals with various frequencies, and compensating and modifying various sound sources and other special effects. An equalizer typically has a plurality of adjustable frequency points, and generally, when there are many adjustable frequency points on the equalizer, the equalizer is called as how many segments of the equalizer, for example, a 10-segment equalizer means that there are 10 adjustable nodes. In addition, many common sound boxes for home use have simple high and low sound gain adjustment knobs, which we can consider as a two-stage analog equalizer.
In the embodiment of the invention, when the sound effect of the audio equipment is debugged and the audio equipment is detected to be in each sound effect mode, the limit value and the standard value of each frequency point in the equalizer of the audio equipment are detected. Specifically, the detection module 301 includes:
the first detection module is used for detecting the value of each frequency point in the equalizer of the audio equipment when the audio equipment is in a common mode, and determining the detected value as the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode;
in the embodiment of the invention, when the standard value of each frequency point in the equalizer of the audio equipment is detected when the audio equipment is in each sound effect mode, the sound effect mode of the audio equipment is firstly adjusted to a common mode, then the value of each frequency point in the equalizer of the audio equipment at the moment is detected, and the detected value is determined as the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
For example, assuming that the equalizer is a 5-segment equalizer, the standard value of each bin in the equalizer of the audio device may be defined as (S1, S2, S3, S4, S5) when the audio device is in a certain sound effect mode.
And the second detection module is used for adjusting the output power of the audio equipment to the rated output power, respectively detecting the value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode, and determining the detected value as the limit value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
In the embodiment of the invention, when the limiting value of each frequency point in an equalizer of the audio equipment is detected when the audio equipment is in each sound effect mode, the output power of the audio equipment is adjusted to the rated output power, then the value of each frequency point in the equalizer of the audio equipment is detected when the audio equipment is in each sound effect mode, and the detected value is determined as the limiting value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
For example, when the audio device is in the bass mode, the limit values of the frequency points in the equalizer of the audio device are detected to be (M1, M2, M3, M4, M5).
A determining module 302, configured to determine, according to the limit value and the standard value, a frequency response curve of the audio device in each sound effect mode;
in the embodiment of the invention, when the audio equipment is detected to be in each sound effect mode, after the limiting value and the standard value of each frequency point in the equalizer of the audio equipment are detected, the frequency response curve of the audio equipment in each sound effect mode can be determined according to the limiting value and the standard value.
The adjusting module 303 is configured to determine, after receiving a debugging instruction, a target frequency response curve corresponding to a target audio mode included in the debugging instruction in the frequency response curves of the audio effect modes, and adjust each frequency point in the equalizer of the audio device by using the target frequency response curve.
In the embodiment of the invention, when a debugging instruction is received, each frequency point in the equalizer of the audio equipment can be adjusted according to a target sound effect mode which the debugging instruction wants to debug and a target frequency response curve corresponding to the target sound effect mode.
Specifically, according to the target frequency response curve, the sound pressure level of each frequency point in the audio equipment equalizer is adjusted, so that the sound pressure level of each frequency point in the audio equipment equalizer is the same as the sound pressure level of each frequency point in the target frequency response curve, that is, the sound effect mode of the audio equipment can be adjusted to the target sound effect mode.
Compared with the prior art, the audio device sound effect debugging device provided by the embodiment of the invention determines the frequency response curve of the audio device in each sound effect mode by using the limit value and the standard value of each frequency point in the audio device equalizer when the audio device is in each sound effect mode, and adjusts each frequency point in the audio device equalizer according to the target frequency response curve corresponding to the target sound effect mode to be adjusted when the sound effect mode is adjusted, so that the condition that the sound effect mode switching is possibly invalid when the volume of the audio device is large can be effectively avoided, and the effectiveness of sound effect adjustment is ensured.
Further, based on the second embodiment of the present invention, referring to fig. 4, fig. 4 is a schematic diagram of a detailed program module of the determining module 302 in the second embodiment of the present invention, in an embodiment of the present invention, the determining module 302 includes:
a calculating module 401, configured to calculate a difference between a limit value and a standard value of each frequency point in an equalizer of the audio device when the audio device is in each audio mode, and use the calculated difference as a gain value of each frequency point in the equalizer of the audio device when the audio device is in each audio mode;
in the embodiment of the invention, when the frequency response curve of the audio equipment in each sound effect mode is determined, the difference value between the limiting value and the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode is calculated respectively, and then the calculated difference value is used as the gain value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
For example, assuming that the equalizer is a 5-segment equalizer, and assuming that the audio device is currently in a bass mode, and the standard values of the frequency points in the equalizer of the audio device are (S1, S2, S3, S4, S5) and the limit values are (M1, M2, M3, M4, M5), when the audio device is in the bass mode, the gain values of the frequency points in the equalizer of the audio device are ((M1-S1), (M2-S2), (M3-S3), (M4-S4), (M5-S5), respectively).
And a curve determining module 402, configured to determine a frequency response curve of the audio device in each sound effect mode according to the standard value and the gain value corresponding to each frequency point in the equalizer of the audio device when the audio device is in each sound effect mode.
In the embodiment of the invention, when the audio equipment is determined to be in each sound effect mode, after the gain value corresponding to each frequency point in the equalizer of the audio equipment is determined, the frequency response curve of the audio equipment in each sound effect mode can be determined according to each gain value.
Specifically, the curve determining module 402 is configured to:
respectively determining frequency points needing to be enhanced and reduced in an equalizer of the audio equipment when the audio equipment is in each sound effect mode;
taking the sum of the standard value and the gain value corresponding to the frequency point needing to be enhanced as the sound pressure level of the frequency point needing to be enhanced, and taking the difference between the standard value and the gain value corresponding to the frequency point needing to be reduced as the sound pressure level of the frequency point needing to be reduced;
and determining a frequency response curve when the audio equipment is in each sound effect mode based on the sound pressure level of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
It can be understood that adjusting the sound effect mode of the audio device is to adjust the values of all frequency points in the equalizer of the audio device, for example, when the audio device is adjusted to the bass mode, the values of all frequency points in the equalizer of the audio device need to be reduced; when the audio equipment is adjusted to the middle and low sound mode, the values of a part of frequency points only need to be reduced, and then the rest frequency points are enhanced.
In the embodiment of the present invention, it is assumed that the equalizer is a 5-segment equalizer, and when the audio device is in the bass mode, the first three frequency points in the equalizer of the audio device need to be enhanced, and the second two frequency points need to be reduced, when the audio device is in the bass mode, the sound pressure level of each frequency point is: v1＝S1+k1(M1-S1)、V2＝S2+k2(M2-S2)、V3＝S3+k3(M3-S3)、V4＝S4-k4(M4-S4)、V5＝S5-k5(M5-S5) (ii) a Wherein k is1、k2、k3、k4、k5The adjustment coefficients corresponding to the frequency points can be obtained by technicians through a large number of adjustment experiments.
When the audio equipment is determined to be in each sound effect mode, after the sound pressure level of each frequency point in the equalizer of the audio equipment is determined, the frequency response curve of the audio equipment in each sound effect mode can be determined according to the sound pressure level of each frequency point.
The debugging device for the audio equipment audio effect provided by the embodiment of the invention respectively calculates the difference value between the limiting value and the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each audio effect mode, and uses the calculated difference value as the gain value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each audio effect mode, and then determines the frequency response curve of the audio equipment in each audio effect mode according to the standard value and the gain value corresponding to each frequency point in the equalizer of the audio equipment when the audio equipment is in each audio effect mode, so that each frequency point in the equalizer of the audio equipment can be adjusted according to the target frequency response curve corresponding to the target audio effect mode to be adjusted when the audio effect mode is adjusted, thereby effectively avoiding the condition that the audio effect mode switching is possibly invalid when the volume of the audio equipment is larger, the effectiveness of sound effect regulation is guaranteed.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and in actual implementation, there may be other divisions, for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It should be noted that, for the sake of simplicity, the above-mentioned method embodiments are described as a series of acts or combinations, but those skilled in the art should understand that the present invention is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no acts or modules are necessarily required of the invention.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In view of the above, the present invention provides a method and an apparatus for debugging sound effects of an audio device, and those skilled in the art will be able to change the concept of the embodiments of the present invention in the following detailed description and application scope.
Claims (6)
1. A method for debugging sound effects of audio equipment is characterized by comprising the following steps:
detecting the limit value and the standard value of each frequency point in an equalizer of the audio equipment when the audio equipment is in each sound effect mode;
determining a frequency response curve of the audio equipment in each sound effect mode according to the limit value and the standard value;
after a debugging instruction is received, determining a target frequency response curve corresponding to a target audio mode contained in the debugging instruction in the frequency response curves of the sound effect modes, and adjusting each frequency point in an equalizer of the audio equipment by using the target frequency response curve;
wherein, when detecting audio equipment is in each audio effect mode, the extreme value and the standard value of each frequency point in the audio equipment equalizer include:
detecting the sound pressure level of each frequency point in the equalizer of the audio equipment when the audio equipment is in a common mode, and determining the detected sound pressure level as the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode;
adjusting the output power of the audio equipment to a rated output power, respectively detecting the sound pressure level of each frequency point in an equalizer of the audio equipment when the audio equipment is in each sound effect mode, and determining the detected sound pressure level as the limit value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode;
the step of determining the frequency response curve of the audio equipment in each sound effect mode according to the limit value and the standard value comprises the following steps:
respectively calculating the difference value between the limiting value and the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode, and taking the calculated difference value as the gain value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode;
and determining a frequency response curve of the audio equipment in each sound effect mode according to the standard value and the gain value corresponding to each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
2. The method according to claim 1, wherein the step of determining the frequency response curve of the audio device in each audio effect mode according to the standard value and the gain value corresponding to each frequency point in the equalizer of the audio device in each audio effect mode comprises:
respectively determining frequency points needing to be enhanced and reduced in an equalizer of the audio equipment when the audio equipment is in each sound effect mode;
taking the sum of the standard value and the gain value corresponding to the frequency point needing to be enhanced as the sound pressure level of the frequency point needing to be enhanced, and taking the difference between the standard value and the gain value corresponding to the frequency point needing to be reduced as the sound pressure level of the frequency point needing to be reduced;
and determining a frequency response curve when the audio equipment is in each sound effect mode based on the sound pressure level of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
3. The method of claim 2, wherein the step of adjusting the frequency points in the equalizer of the audio device using the target frequency response curve comprises:
and adjusting the sound pressure level of each frequency point in the audio equipment equalizer according to the target frequency response curve, so that the sound pressure level of each frequency point in the audio equipment equalizer is the same as the sound pressure level of each frequency point in the target frequency response curve.
4. A debugging device for audio equipment sound effect is characterized in that the device comprises:
the detection module is used for detecting the limiting value and the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode;
the determining module is used for determining a frequency response curve of the audio equipment in each sound effect mode according to the limiting value and the standard value;
the adjusting module is used for determining a target frequency response curve corresponding to a target audio mode contained in the debugging instruction in the frequency response curves of the audio effect modes after receiving the debugging instruction, and adjusting each frequency point in the equalizer of the audio equipment by using the target frequency response curve;
wherein the detection module comprises:
the first detection module is used for detecting the sound pressure level of each frequency point in the equalizer of the audio equipment when the audio equipment is in a common mode, and determining the detected sound pressure level as the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode;
the second detection module is used for adjusting the output power of the audio equipment to a rated output power, respectively detecting the sound pressure level of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode, and determining the detected sound pressure level as the limit value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode;
the determining module comprises:
the computing module is used for respectively computing the difference value between the limiting value and the standard value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode, and taking the computed difference value as the gain value of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode;
and the curve determining module is used for determining the frequency response curve of the audio equipment in each sound effect mode according to the standard value corresponding to each frequency point in the equalizer of the audio equipment and the gain value when the audio equipment is in each sound effect mode.
5. The apparatus of claim 4, wherein the curve determination module is configured to:
respectively determining frequency points needing to be enhanced and reduced in an equalizer of the audio equipment when the audio equipment is in each sound effect mode;
taking the sum of the standard value and the gain value corresponding to the frequency point needing to be enhanced as the sound pressure level of the frequency point needing to be enhanced, and taking the difference between the standard value and the gain value corresponding to the frequency point needing to be reduced as the sound pressure level of the frequency point needing to be reduced;
and determining a frequency response curve when the audio equipment is in each sound effect mode based on the sound pressure level of each frequency point in the equalizer of the audio equipment when the audio equipment is in each sound effect mode.
6. The apparatus of claim 5, wherein the adjustment module is configured to:
and adjusting the sound pressure level of each frequency point in the audio equipment equalizer according to the target frequency response curve, so that the sound pressure level of each frequency point in the audio equipment equalizer is the same as the sound pressure level of each frequency point in the target frequency response curve.
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| CN109831398B (en) * | 2018-12-29 | 2021-11-26 | 晶晨半导体(上海)股份有限公司 | Automatic adjusting method for gain of multistage equalizer of serial data receiver |
| CN109947386A (en) * | 2019-03-22 | 2019-06-28 | 深圳市智杰芯科技有限公司 | Intelligent-induction formula classroom perseverance system for electrical teaching |
| CN110221806A (en) * | 2019-07-22 | 2019-09-10 | 北京硬壳科技有限公司 | The method and device of audio adjusting, display |
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