CN113611317A - Sound effect processing method and device, vehicle-mounted entertainment system and automobile - Google Patents
Sound effect processing method and device, vehicle-mounted entertainment system and automobile Download PDFInfo
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Abstract
The application relates to a sound effect processing method and device, a vehicle-mounted entertainment system and an automobile. The method comprises the following steps: acquiring an input volume level; the input volume level is one of a plurality of preset volume levels, and the preset volume levels respectively have corresponding sound effect parameters; and adjusting the audio sound effect according to the sound effect parameter corresponding to the input volume level. The scheme that this application provided can carry out dynamic audio frequency audio effect through the audio parameter that adopts to the difference volume and adjust, and the non-sound effect parameter that adopts is adjusted to make the audio frequency play at the volume of difference, all can reach good sense of hearing and feel, keep the characteristic of the audio that corresponds simultaneously.
Description
Technical Field
The application relates to the technical field of sound effect processing, in particular to a sound effect processing method and device, a vehicle-mounted entertainment system and an automobile.
Background
Currently, a vehicle-mounted entertainment system is an important component of a vehicle, and the system can be used for playing music, videos, voice broadcasts and the like, so that the application functions of the vehicle are enriched. For the function of playing music, a vehicle-mounted entertainment system often carries more loudspeakers, and then adjusts audio data through Digital Signal Processing (DSP), so that sound effects of various styles and types can be simulated when music is played. The sound effect usually comprises the types of original sound, human voice, jazz, rock, classic and the like, each sound effect has different adjusting parameters, the audio is adjusted through the adjusting parameters corresponding to the sound effect, and the played music can have corresponding sound effect characteristics.
In the related art, taking a rock-and-roll type sound effect as an example, the rock-and-roll sound effect is generally adjusted by increasing the gains of the low frequency band and the high frequency band in the audio data and suppressing the gain of the middle frequency band, so that the music played by the speaker has a rock-and-roll style. However, when a user plays music using the rock sound effect, if the user turns the played volume up to a certain volume level, the rock sound effect may give a harsh and uncomfortable feeling to the user.
Disclosure of Invention
In order to solve the problems in the related art, the application provides a sound effect processing method, a sound effect processing device, a vehicle-mounted entertainment system and a vehicle, which can dynamically adjust the sound effect according to the volume and improve the hearing experience of a user.
The first aspect of the present application provides a sound effect processing method, including:
acquiring an input volume level; the input volume level is one of a plurality of preset volume levels, and the preset volume levels respectively have corresponding sound effect parameters;
and adjusting audio frequency according to the sound effect parameter corresponding to the input volume level.
In an embodiment, the preset volume levels respectively have corresponding sound effect parameters, including:
presetting a plurality of volume levels;
presetting corresponding reference sound effect parameters according to the Nth level of the volume level; wherein N is a natural number;
and respectively presetting sound effect parameters corresponding to other volume levels in the plurality of volume levels according to the reference sound effect parameters.
In an embodiment, the presetting of the corresponding sound effect parameters includes:
presetting a frequency range of audio;
selecting a plurality of center frequencies within the frequency range;
and respectively setting corresponding gain and Q value according to the central frequency.
In one embodiment, the gain is a positive value, a negative value or 0dB, and the gain corresponding to each of the center frequencies is independently set.
In an embodiment, the presetting the sound effect parameters corresponding to other volume levels among the plurality of volume levels according to the reference sound effect parameter includes:
selecting at least one volume level to form a group of volume sets;
the sound effect parameters corresponding to the volume levels in the same group of volume sets are the same.
In an embodiment, the presetting the sound effect parameters corresponding to other volume levels among the plurality of volume levels according to the reference sound effect parameter includes:
and respectively setting gains of the sound effect parameters of other sound volume levels according to the gains in the reference sound effect parameters of the Nth level sound volume level.
In an embodiment, the method further comprises:
respectively obtaining power amplifier gain of the vehicle-mounted entertainment system and/or default gain of the DSP;
and determining the total gain of the audio sound effect according to the sound effect parameters, the power amplifier gain and/or the default gain.
The second aspect of the present application provides a sound effect processing apparatus, which includes:
the volume level acquisition module is used for acquiring the input volume level; the input volume level is one of a plurality of preset volume levels, and the preset volume levels respectively have corresponding sound effect parameters;
and the sound effect adjusting module is used for adjusting audio sound effects according to the input sound effect parameters corresponding to the volume level.
The third aspect of the present application provides a vehicle-mounted entertainment system, which comprises the sound effect processing device of any of the above embodiments.
A fourth aspect of the present application provides an automobile comprising the in-vehicle entertainment system of any of the above embodiments.
The technical scheme provided by the application can comprise the following beneficial effects:
the scheme that this application provided sets up corresponding audio parameter respectively according to the volume level of difference in advance to make the audio frequency when adopting different volume broadcast, all have corresponding audio parameter and adjust. Such design carries out dynamic audio frequency audio effect through the sound effect parameter that adopts to correspond to different volumes and adjusts, and not adopt fixed sound effect parameter to adjust to make audio frequency when different volumes play, all can reach good sense of hearing and feel, keep the characteristic of the sound effect that corresponds simultaneously.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
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The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
FIG. 1 is a schematic flow chart illustrating a sound effect processing method according to an embodiment of the present application;
FIG. 2 is a schematic flow chart illustrating a sound effect processing method according to another embodiment of the present application;
FIG. 3 is a schematic structural diagram of a sound effect processing device according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of an audio processing device according to another embodiment of the present application.
Detailed Description
Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the related art, when the same sound effect is played with different volumes, especially with a large volume, the high-frequency-band audio may bring harsh bad listening feeling to the user. In order to solve the above problem, an embodiment of the present application provides a sound effect processing method, which can dynamically adjust a sound effect according to a volume, and improve a hearing experience of a user.
In order to facilitate understanding of the embodiments of the present application, the technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a flow chart illustrating a sound effect processing method according to an embodiment of the present application.
As shown in fig. 1, the method includes:
step S110, acquiring an input volume level; the input volume level is one of a plurality of preset volume levels, and the preset volume levels respectively have corresponding sound effect parameters.
It can be understood that the vehicle-mounted entertainment system is preset with a plurality of volume levels so as to correspond to different volume levels, and the user can adjust the volume levels by directly or indirectly selecting the corresponding volume levels. The plurality of volume levels include two or more volume levels. Taking the vehicle-mounted entertainment system as an example, when the user inputs a certain volume level, the vehicle-mounted entertainment system acquires the volume level input by the user.
Furthermore, the preset volume levels respectively have corresponding preset sound effect parameters. In one embodiment, the sound effect parameters corresponding to different volume levels may be the same or different. In one embodiment, the setting of the audio effect parameters approaches the characteristics of the audio effect itself. For example, when the type of the sound effect is a rock sound effect, the setting of the sound effect parameters approaches to the characteristics of the rock sound effect, so that the expression characteristics of the audio adjusted according to the sound effect parameters approach to the rock style.
Step S120, adjusting audio frequency and sound effect according to the sound effect parameter corresponding to the input sound volume level.
According to the difference of the input volume levels, the audio effect is adjusted by adopting the corresponding sound effect parameters, so that the sound effect during audio playing is correspondingly adjusted according to the change of the volume, and good auditory feeling is brought to a user. The method of the embodiment can reasonably avoid the normal performance of the rock and roll sound effect in the middle and low frequency bands and the harsh performance in the high frequency band and large volume in the related technology. In this embodiment, when the volume level of input is the loud volume, the gain of high frequency band can be correspondingly suppressed to the audio parameter of adoption to avoid the harsh audio, reach good sense of hearing and feel.
It can be seen from this embodiment that, according to the scheme provided by the embodiment of the present application, corresponding sound effect parameters are respectively set according to different volume levels in advance, so that when audio is played at different volumes, the audio has corresponding sound effect parameters for adjustment. Such design carries out dynamic audio frequency audio effect through the sound effect parameter that adopts to correspond to different volumes and adjusts, and not adopt fixed sound effect parameter to adjust to make audio frequency when different volumes play, all can reach good sense of hearing and feel, keep the characteristic of the sound effect that corresponds simultaneously.
FIG. 2 further describes the sound effect processing method of the present application.
Referring to fig. 2, the method includes:
step S210, presetting a plurality of volume levels; presetting corresponding reference sound effect parameters according to the Nth level volume level; wherein N is a natural number.
In an embodiment, a plurality of volume levels are preset, and each volume level corresponds to a different volume level. The sound effect parameter setting method comprises the steps of setting a reference sound effect parameter, wherein the reference sound effect parameter can be set by selecting an Nth level volume level from a plurality of volume levels. For example, 0-30 volume levels are preset, wherein 0 level represents silence, 30 levels represent maximum volume, and the volume levels are ranked according to 0, 1 and 2. Further, one of the volume levels, for example, the 15 th level volume level, is selected to set the reference sound effect parameter, that is, N is 15. Of course, based on different types of audio devices, the corresponding reference sound effect parameter may be set according to the actual volume level, which is not limited herein. In one embodiment, the corresponding reference sound effect parameters may be set according to a volume level commonly used by the user. It can be understood that the volume adopted by the user to normally listen to music is not too low or too high, so that the reference sound effect parameter corresponding to the volume level setting of the intermediate value can be selected to better accord with the hearing habits of the user.
Further, in an embodiment, a plurality of volume levels may be set according to a ratio of the power amplifier gain. The power amplifier gain, i.e., the amplifier gain, refers to an expression of 20 times logarithm of the amplification factor. The gain is denoted by L, and a denotes the amplification factor, then L is 20lgA, and the unit of the gain is called decibel, i.e. the sign dB. It will be appreciated that different audio devices have corresponding power amplifier gains. Taking an in-vehicle entertainment system in an automobile as an example, the power amplifier gain generally has a corresponding decibel. Assuming that the power amplifier gain is XdB, a plurality of corresponding volume levels can be set according to the ratio of the XdB. Assuming that the volume levels include 30 levels in total, the volume level of the 30 th level may be corresponding to 80% of the gain of the power amplifier, that is, 0.8XdB corresponds to the volume level of the 30 th level. In other embodiments, the volume level may also be set according to other rules, which are not limited herein.
Further, in order to reduce the difficulty of setting the sound effect parameters, corresponding reference sound effect parameters may be set in advance. Wherein the reference sound effect parameter corresponds to the type of sound effect. For example, the types of sound effects may include original sound, human voice, jazz, rock, classical, etc., each type of sound effect having a unique style characteristic. In the related art, different types of sound effects are generally obtained by correspondingly adjusting parameter settings for different frequency bands of audio, that is, each type of sound effect has corresponding adjustment parameters. In this embodiment, the reference sound effect parameter is matched with the sound effect of the corresponding type, so as to ensure that the sound effect of the audio adjusted according to the reference sound effect parameter conforms to the characteristics of the preset sound effect type. After the reference sound effect parameters are qualified, the sound effect parameters are further set on the basis of the reference sound effect parameters in the subsequent steps.
Further, in order to reasonably set the reference sound effect parameters, in an embodiment, a frequency range of the audio frequency is preset; selecting a plurality of center frequencies within a frequency range; and respectively setting corresponding gain and Q value according to the central frequency. It can be understood that the frequency range of sound that can be sensed by the normal human ear is between 20Hz and 20000 Hz. In one embodiment, the adjustable frequency range of the audio frequency can be preset to be 0 to 20000 Hz. Further, in an embodiment, a plurality of frequency bands are divided within a frequency range, and a corresponding number of center frequencies f are selected according to the number of the divided frequency bandsiWherein i is a natural number. It can be understood that each center frequency is a frequency of a center point of the corresponding frequency band. In one embodiment, the number of frequency bands is 9, and 9 center frequencies are selected correspondingly. In one embodiment, the 9 center frequencies may be f1＝60Hz、f2＝260Hz、f3＝440Hz、f4＝1000Hz、f5＝2000Hz、f6＝4000Hz、f7＝6000Hz、f8＝10000Hz、f915000 Hz. Wherein, the low frequency comprises 60Hz, 260Hz and 440Hz, the medium frequency comprises 1000Hz, 2000Hz and 4000Hz, and the high frequency comprises 6000Hz, 10000Hz and 15000 Hz. In other embodiments, the number of frequency bands may also be 7; accordingly, the number of the center frequencies is 7, and the value of the center frequency is set accordingly, which is not limited herein. Furthermore, after determining the frequency value of the center frequency of each frequency band, setting the gain g corresponding to each center frequencyiAnd Qi. It will be appreciated that the reference audio effect parameters include the center frequency, gain and bandwidth for each frequency band, i.e. the reference audio effect parameters may be defined by fi，gi，QiRepresents it. According to the division of the frequency range, taking 9 segments as an example, the reference sound effect parameters include { f }1，g1，Q1}、{f2，g2，Q2}、{f3，g3，Q3}、{f4，g4，Q4}、{f5，g5，Q5}、{f6，g6，Q6}、{f7，g7，Q7}、{f8，g8，Q8And { f }and9，g9，Q9}。
Further, the gain gi corresponding to each frequency band is set according to the sound characteristics corresponding to different volume levels of the low frequency, the medium frequency and the high frequency. In one embodiment, the gain is a positive value, a negative value or 0dB, and the gain corresponding to each center frequency is set independently. Where a negative gain indicates suppressing the signal of attenuated audio and a positive gain indicates boosting the signal of enhanced audio. Corresponding gains are correspondingly set according to the characteristics of low frequency, medium frequency and high frequency, so that the audio frequency is ensured to reduce distortion. For example, for a high frequency band, the corresponding gain may be appropriately reduced, thereby avoiding a harsh hearing sensation.
Further, the Q value is the center frequency fiRatio to bandwidth B of frequency bandRate, i.e. Qi＝fiand/B. On the premise that the center frequency is not changed, the larger the Q value is, the narrower the bandwidth is affected, i.e., the Q value determines the range of the frequency band to be boosted or attenuated by the gain. Typically, Q ranges from 0.1 (very broad) to 16 (very narrow). In order to equalize the influence of the gain on the bandwidth corresponding to each frequency band, in an embodiment, the Q value corresponding to each center frequency may be set to be the same.
For convenience of understanding, taking a rock-and-roll type sound effect as an example, in an embodiment, a 0-30 level volume level is preset, and a 15 th level volume level is selected for setting reference sound effect parameters; the adjustable frequency range of the audio equipment is divided into 9 frequency bands in advance, and the obtained 9 corresponding center frequencies are 60Hz, 260Hz, 440Hz, 1000Hz, 2000Hz, 4000Hz, 6000Hz, 10000Hz and 15000Hz respectively; according to { fi，gi，QiWhere denotes a reference sound-effect parameter, the reference sound-effect parameter may be {60, -8, 1.0}, {260, 0, 1.0}, {440, 0, 1.0}, {1000, -2, 1.0}, {2000, -3, 1.0}, {4000, -4, 1.0}, {6000, -3, 1.0}, {10000, -4, 1.0}, and {15000, -3, 1.0 }.
Step S220, respectively presetting sound effect parameters corresponding to other volume levels in the plurality of volume levels according to the reference sound effect parameters.
Furthermore, because the volume levels comprise a plurality of levels, in order to reduce the difficulty of setting the sound effect parameters and keep all the volume levels consistent in sound effect, sound effect parameters corresponding to other volume levels are set under the reference of the reference sound effect parameters. For example, in the above embodiment, the reference sound effect parameter corresponding to the 15 th level sound volume level is set, and in this step, on the basis of the reference sound effect parameter, the sound effect parameters of other 30 sound effect levels than the 15 th level sound effect level are set.
Further, in order to reduce the complexity of the sound effect parameter setting, in an embodiment, at least one volume level is selected to form a group of volume sets; the sound effect parameters corresponding to the volume levels in the same group of volume sets are the same. In one embodiment, a group of volume sets can be formed by a plurality of volume levels which are adjacent in sequence, and the sound effect parameters of the volume levels in the volume sets are equally set, so that the parameter setting amount is reduced. For ease of understanding, for example, the volume level of an in-vehicle entertainment system includes levels 0-30. In an embodiment, 0 to 5 levels are used as the first group of volume sets VG1(volume groups), 6 to 10 levels are the second group of volume sets VG2, 11 to 15 levels are the third group of volume sets VG3, 16 to 20 levels are the fourth group of volume sets VG4, 21 to 25 levels are the fifth group of volume sets VG5, 26 to 28 levels are the sixth group of volume sets VG6, 29 levels are the seventh group of volume sets VG7, and 30 levels are the eighth group of volume sets VG 8. That is, by allocating the volume levels of 0 to 30 levels to form 8 sets of volume sets, the number of volume levels included in each set of volume sets may be the same or different, and the number of volume levels in each set is at least one. According to the setting, the volume difference based on the volume levels in the same group is small, the volume levels in the same group adopt the same sound effect parameters, the sound effect adjusting effect is not obviously influenced, meanwhile, the workload of parameter setting is simplified, and the adjusting efficiency is improved. Further, it can be understood that the volume levels of the sets of volume sets are not equally distributed, and the larger the volume level is, the smaller the number of volume levels included in each set of volume sets is. This is because, in the case of a large volume, the larger the influence of the volume on the sound effect, the better the setting of appropriate sound effect parameters is required. Typically, when the volume is small, the change in sound effect is relatively less noticeable than when the volume is large. Thus, it is desirable to group larger volume levels more finely, while smaller volume levels are relatively less subdivided. For example, the first set of volume sets VG1 includes 0-5 levels, while the eighth set of volume sets VG8 includes only 30 levels.
Further, when the sound effect parameters of other volume levels are set according to the basic sound effect parameter, in an embodiment, the gains of the sound effect parameters of other volume levels are respectively set according to the gain in the reference sound effect parameter of the nth level volume level. It will be appreciated that each volume level may have the same center frequency and Q value depending on the volume level. In order to simplify the parameter setting, in one embodiment, the sound effect parameters at the volume levels of the same volume set have the same gain.
For convenience of understanding, taking the ROCK and roll sound effect as an example, the 8 sets of sound quantity sets VG 1-VG 8 respectively have corresponding sound effect parameters ROCK1, ROCK2, ROCK3, ROCK4, ROCK5, ROCK6, ROCK7, ROCK8, that is, the 8 sets of sound quantity sets respectively have corresponding sound effect parameters, for example, VG1 corresponds to ROCK1, VG2 corresponds to ROCK2, and so on. When the basic sound-effect parameter is set at the 15 th level, since the 15 th level is located in the volume set VG3, the basic sound-effect parameter corresponding to VG3 is ROCK 3. The sound effect parameters of ROCK1, ROCK2, ROCK4, ROCK5, ROCK6, ROCK7, ROCK8 and ROCK9 are respectively set according to the basic sound effect parameter ROCK3, and by means of the design, the sound effects of the audio which is adjusted by adopting the corresponding sound effect parameters at any volume level are both ROCK and roll sound effects, and meanwhile, the sound effects of the audio played at any volume level are not distorted and harsh.
Further, for example, VG3 setting the corresponding base sound effect parameter ROCK3 may take { f }i，gi，QiIndicates that the sound effect parameters corresponding to other volume levels are { f }i，gi±a，QiWherein a is any number. Wherein, each frequency band in the sound effect parameter corresponding to a single volume level is respectively adopted as fi，gi±a，QiIndicates that the a values of the frequency bands can be the same or different. For example, the sound effect parameter corresponding to other volume levels may be { f }1，g1，Q1}、{f2，g2，Q2}、{f3，g3，Q3}、{f4，g4，Q4}、{f5，g5，Q5}、{f6，g6-w，Q6}、{f7，g7-x，Q7}、{f8，g8-y，Q8And { f }and9，g9-z，Q9And w, x, y and z are gain dB values of attenuation of corresponding frequency bands, and can be set identically or differently. For example, the sound effect parameters of ROCK8 corresponding to VG8 are {60, -8, 1.0}, {260, 0, 1.0}, {440, 0, 1.0}, and}，{1000，-2，1.0}，{2000，-3，1.0}，{4000，-4，1.0}，{6000，-3，1.0}，{10000，-4，1.0}，{15000，-3，1.0}。
and step S230, adjusting audio sound effects according to the input volume level and sound effect type and corresponding sound effect parameters.
After the sound effect parameters corresponding to each volume level are preset, the corresponding sound effect parameters can be adapted according to the volume level and the sound effect type input by the user in actual use. That is to say, taking the vehicle-mounted entertainment system as an example, when the audio of the same sound effect is played according to any sound volume level selected by the user, the output characteristic of the sound effect can be reasonably adjusted by matching different sound effect parameters with the corresponding sound volume level while the corresponding sound effect style is maintained. When the volume level is higher, the corresponding sound effect parameters can reduce the gain of a high frequency band, so that the sound is prevented from being harsh; at a smaller volume level, the corresponding sound effect parameters can improve the gain of a low frequency band and increase the thickness of sound. When the user switches the sound effect type, for example, from the rock type to the classical type, the sound effect parameters corresponding to the same sound volume level are correspondingly switched, that is, the sound effect parameters of different types of sound effects at the same sound volume level are different.
Further, in the related art, based on the characteristics of hardware devices such as speakers mounted on the in-vehicle entertainment system itself, the in-vehicle entertainment system itself may have a corresponding power amplifier gain. In addition, when the audio is adjusted by using the DSP system, the corresponding default gain is also obtained based on the inherent characteristics of the DSP system. It will be appreciated that the values of the power amplifier gain of the in-vehicle entertainment system and the default gain of the DSP are generally fixed gain values. In one embodiment, power amplifier gain and/or default gain of DSP of the vehicle-mounted entertainment system are/is obtained respectively; and determining the total gain of the audio effect according to the sound effect parameters, the power amplifier gain and/or the default gain. For example, the power amplifier gain is 26dB, the default gain is-14 dB, the gain of the sound effect parameter of a certain type of sound effect at a certain volume level is 2dB, and the total gain is 26-14+2 to 14 dB. The vehicle entertainment system finally adjusts the sound effect of the audio according to the total gain of 14 dB.
According to the embodiment, the scheme provided by the embodiment of the application sets the corresponding sound effect parameters respectively for different sound volume levels according to the same type of sound effect, so that when a user selects any sound volume level to play music, the corresponding sound effect parameters can be reasonably adjusted, bad listening feelings such as harsh feeling are avoided on the premise of keeping the style and type of the sound effect unchanged, and the user experience is improved; meanwhile, a plurality of adjacent volume levels are grouped to correspond to the same sound effect parameter, so that the setting difficulty of the parameter is reduced, and the workload is reduced; in addition, aiming at different types of sound effects, the sound effect parameters corresponding to different styles and different volume levels are respectively provided, so that the requirement of switching any type of sound effect and any volume level is met, and a good hearing effect can be achieved.
Corresponding to the embodiment of the application function implementation method, the application also provides a sound effect processing device, a vehicle-mounted entertainment system, a vehicle and a corresponding embodiment.
Fig. 3 is a schematic structural diagram of an audio processing device according to an embodiment of the present application.
Referring to fig. 3, the sound effect processing apparatus of the present application includes a volume level obtaining module 310 and a sound effect adjusting module 320, wherein:
the volume level obtaining module 310 is configured to obtain an input volume level; the input volume level is one of a plurality of preset volume levels, and the preset volume levels respectively have corresponding sound effect parameters.
The sound effect adjusting module 320 is configured to adjust an audio sound effect according to the sound effect parameter corresponding to the input volume level.
Further, referring to fig. 4, in an embodiment, the sound effect processing apparatus further includes a parameter setting module 330, where the parameter setting module 330 is configured to preset a corresponding reference sound effect parameter according to the nth level volume level; wherein N is a natural number; and respectively presetting sound effect parameters corresponding to other volume levels in the plurality of volume levels according to the reference sound effect parameters. In order to obtain the sound effect parameters, wherein the frequency range of the audio frequency can be preset; selecting a plurality of center frequencies within a frequency range; and respectively setting corresponding gain and Q value according to the central frequency, thereby obtaining sound effect parameters. The gain of each sound effect parameter is a positive value, a negative value or 0dB, the gain corresponding to each center frequency is independently set, and the setting of the gain is related to the volume level and the frequency band. For the same frequency band, the corresponding gain values may be different at different volume levels. By adjusting the gain, sound effects can be made to have good auditory performance at different volume levels. It can be understood that the sound effect parameters of the same type of sound effect are set according to the corresponding volume level, and the sound effect parameters of the same volume level and different sound effect types are different. Further, in order to reduce the difficulty of parameter setting, at least one volume level can be selected to form a group of volume sets; the sound effect parameters corresponding to the volume levels in the same group of volume sets are the same.
According to the embodiment, the sound effect setting module is used for setting the corresponding sound effect parameters according to different sound volume levels in advance, and after the sound volume level acquisition module acquires the input sound volume level, the sound effect adjusting module adjusts the sound frequency according to the corresponding sound effect parameters, so that the sound effect can be dynamically adjusted when the sound frequency is played according to different sound volume levels, and the style type corresponding to the sound effect is kept while the sound effect is prevented from being dazzled.
An embodiment of the present application further provides a vehicle-mounted entertainment system, which includes the sound effect processing device according to any of the above embodiments. The vehicle-mounted entertainment system of the embodiment can dynamically adjust the sound effect according to the corresponding sound effect parameters according to any volume level input by a user, outputs good audio sound effect, and improves the hearing experience of the user.
An embodiment of the present application further provides an automobile, which includes the vehicle-mounted entertainment system described in any of the above embodiments.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
An embodiment of the present application further provides an electronic device, which includes a memory and a processor.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, 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, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory may include various types of storage units, such as system memory, Read Only Memory (ROM), and permanent storage. Wherein the ROM may store static data or instructions that are required by the processor or other modules of the computer. The persistent storage device may be a read-write storage device. The persistent storage may be a non-volatile storage device that does not lose stored instructions and data even after the computer is powered off. In some embodiments, the persistent storage device employs a mass storage device (e.g., magnetic or optical disk, flash memory) as the persistent storage device. In other embodiments, the permanent storage may be a removable storage device (e.g., floppy disk, optical drive). The system memory may be a read-write memory device or a volatile read-write memory device, such as a dynamic random access memory. The system memory may store instructions and data that some or all of the processors require at runtime. Further, the memory may comprise any combination of computer-readable storage media, including various types of semiconductor memory chips (DRAM, SRAM, SDRAM, flash memory, programmable read-only memory), magnetic and/or optical disks, may also be employed. In some embodiments, the memory may include a removable storage device that is readable and/or writable, such as a Compact Disc (CD), a read-only digital versatile disc (e.g., DVD-ROM, dual layer DVD-ROM), a read-only Blu-ray disc, an ultra-dense optical disc, a flash memory card (e.g., SD card, min SD card, Micro-SD card, etc.), a magnetic floppy disc, or the like. Computer-readable storage media do not contain carrier waves or transitory electronic signals transmitted by wireless or wired means.
The memory has stored thereon executable code which, when processed by the processor, causes the processor to perform some or all of the methods described above.
The aspects of the present application have been described in detail hereinabove with reference to the accompanying drawings. 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. Those skilled in the art should also appreciate that the acts and modules referred to in the specification are not necessarily required in the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application may be sequentially adjusted, combined, and deleted according to actual needs, and the modules in the device of the embodiment of the present application may be combined, divided, and deleted according to actual needs.
Furthermore, the method according to the present application may also be implemented as a computer program or computer program product comprising computer program code instructions for performing some or all of the steps of the above-described method of the present application.
Alternatively, the present application may also be embodied as a computer-readable storage medium (or a computer-readable storage medium, or a machine-readable storage medium) having executable code (or a computer program, or computer instruction code) stored thereon, which, when executed by a processor of an electronic device (or an electronic device, a server, or the like), causes the processor to perform part or all of the steps of the above-described method according to the present application.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the applications disclosed herein may be implemented as electronic hardware, computer software, or combinations of both.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems and methods according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A sound effect processing method is characterized by comprising the following steps:
acquiring an input volume level; the input volume level is one of a plurality of preset volume levels, and the preset volume levels respectively have corresponding sound effect parameters;
and adjusting audio frequency according to the sound effect parameter corresponding to the input volume level.
2. The method according to claim 1, wherein the preset volume levels respectively have corresponding sound effect parameters, including:
presetting a plurality of volume levels;
presetting corresponding reference sound effect parameters according to the Nth level of the volume level; wherein N is a natural number;
and respectively presetting sound effect parameters corresponding to other volume levels in the plurality of volume levels according to the reference sound effect parameters.
3. The method according to claim 2, wherein the presetting of the corresponding sound effect parameters comprises:
presetting a frequency range of audio;
selecting a plurality of center frequencies within the frequency range;
and respectively setting corresponding gain and Q value according to the central frequency.
4. The method of claim 3, wherein the gain is a positive value, a negative value or 0dB, and the gain corresponding to each of the center frequencies is independently set.
5. The method according to claim 2, wherein the presetting of the sound effect parameters corresponding to other of the plurality of sound volume levels according to the reference sound effect parameters comprises:
selecting at least one volume level to form a group of volume sets;
and the sound effect parameters corresponding to the volume levels in the same group of the volume sets are the same.
6. The method according to claim 2, wherein the presetting of the sound effect parameters corresponding to other of the plurality of sound volume levels according to the reference sound effect parameters comprises:
and respectively setting gains of the sound effect parameters of other sound volume levels according to the gains in the reference sound effect parameters of the Nth level sound volume level.
7. The method according to any one of claims 1 to 6, further comprising:
respectively obtaining power amplifier gain of the vehicle-mounted entertainment system and/or default gain of the DSP;
and determining the total gain of the audio sound effect according to the sound effect parameters, the power amplifier gain and/or the default gain.
8. An audio processing apparatus, comprising:
the volume level acquisition module is used for acquiring the input volume level; the input volume level is one of a plurality of preset volume levels, and the preset volume levels respectively have corresponding sound effect parameters;
and the sound effect adjusting module is used for adjusting audio sound effects according to the input sound effect parameters corresponding to the volume level.
9. An in-vehicle entertainment system characterized by comprising the sound-effect processing apparatus of claim 8.
10. An automobile comprising the in-vehicle entertainment system of claim 9.
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