CN109887521B - Dynamic master tape processing method and device for audio - Google Patents
Dynamic master tape processing method and device for audio Download PDFInfo
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Abstract
The application discloses a dynamic master tape processing method and device for audio. The method comprises the steps of determining an input volume proportion of audio data to be processed; and mixing the audio data to be processed according to the input volume proportion and preset logic, and controlling the output volume range in the mixing process. The application solves the technical problem that the accuracy of master tape processing is low. In the present application, parameters for mastering are controlled in an adaptive manner, and time-varying: the mixing proportion of the dry sound derived signals such as dry sound, reverberation and echo and the like and the accompaniment which change along with the change of time is ensured, and the dynamic range of the output signal is ensured. In addition, the application is suitable for singing applications.
Description
Technical Field
The present application relates to the field of audio processing, and in particular, to a dynamic master tape processing method and apparatus for audio.
Background
And the master tape processing is to adjust the mixing of the dry sound and the dry sound derivative signal and the accompaniment through basic module tuning tools such as an equalizer, a mixer, a frequency divider, a dynamic range controller and the like. The common master tape processing mode is to manually adjust the dry sound and the mixing proportion of the dry sound derived signals and the accompaniment, and adjust the output amplitude after relevant processing.
The inventors have found that manual adjustment is less accurate and labor intensive. Further, the parameters cannot be adjusted accurately in accordance with the change of the accompaniment with time.
Aiming at the problem of low precision of master tape processing in the related art, no effective solution is provided at present.
Disclosure of Invention
The present application mainly aims to provide a dynamic master tape processing method and device for audio to solve the problem of low precision of master tape processing.
To achieve the above object, according to one aspect of the present application, there is provided a dynamic master processing method for audio.
The dynamic master tape processing method for audio according to the present application includes: determining the input volume proportion of audio data to be processed; and mixing the audio data to be processed according to the input volume proportion and preset logic, and controlling the output volume range in the mixing process.
Further, determining the input volume ratio of the audio data to be processed comprises: the method comprises the following steps of mixing dry sound and wet sound to be processed: keeping the volume of the dry sound unchanged, and simultaneously reducing the volume of the wet sound according to a preset proportion; wherein the preset ratio is determined according to a ratio of the dry sound and the wet sound amounts in a preceding period of time.
Further, determining the input volume ratio of the audio data to be processed comprises: the echo to be processed is processed in a mixing way: and calculating a reduction amount of the echo according to the volume of the accompaniment, and reducing the volume of the echo according to the reduction amount so that the volume of the echo is small when the volume of the accompaniment is large and the volume of the echo is large when the volume of the accompaniment is small.
Further, determining the input volume ratio of the audio data to be processed comprises: a step of performing mixing processing on the accompaniment to be processed: amplifying the dry sound to a fixed volume level; amplifying the accompaniment to a range lower than the fixed volume level.
Further, mixing the audio data to be processed according to a preset logic according to the input volume ratio, and controlling an output volume range in the mixing process includes: and mixing the audio data to be processed according to the input volume proportion which changes along with time according to the sequence of the dry sound, the dry sound derived signals and the accompaniment, and dynamically controlling the output volume range in the mixing process.
In order to achieve the above object, according to another aspect of the present application, there is provided a dynamic master processing apparatus for audio.
The dynamic master tape processing apparatus for audio according to the present application includes: the determining module is used for determining the input volume proportion of the audio data to be processed; and the control module is used for mixing the audio data to be processed according to the input volume proportion and preset logic and controlling the output volume range in the mixing process.
Further, the determining module includes: the wet sound reduction processing unit is used for keeping the volume of the dry sound unchanged and reducing the volume of the wet sound according to a preset proportion; wherein the preset ratio is determined according to a ratio of the dry sound and the wet sound amounts in a preceding period of time.
Further, the determining module includes: an echo reduction processing unit for calculating a reduction amount of the echo according to a volume of the accompaniment, and reducing a volume of the echo according to the reduction amount so that the volume of the echo is small when the volume of the accompaniment is large and the volume of the echo is large when the volume of the accompaniment is small.
Further, the determining module includes: an amplifying unit for amplifying the dry sound to a fixed volume level; an accompaniment processing unit for magnifying the accompaniment to a range lower than the fixed volume level.
Further, the control module includes: and the dynamic control unit is used for mixing the audio data to be processed according to the input volume proportion which changes along with time and the sequence of the dry sound, the dry sound derived signals and the accompaniment, and dynamically controlling the output volume range in the mixing process.
In the embodiment of the application, a mode of determining the input volume proportion of the audio data to be processed is adopted, the audio data to be processed is mixed according to the preset logic according to the input volume proportion, and the output volume range is controlled in the mixing process, so that the aim of dynamic processing of the master tape is fulfilled, the technical effect of controlling the relevant parameters for processing the master tape in a self-adaptive mode to complete the mixing proportion which changes along with the time change is achieved, and the technical problem of low accuracy of master tape processing is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
FIG. 1 is a schematic flow chart of a dynamic master processing method for audio according to a first embodiment of the present application;
FIG. 2 is a flowchart illustrating a dynamic mastering method for audio according to a second embodiment of the present application;
FIG. 3 is a flowchart illustrating a method for dynamic mastering for audio according to a third embodiment of the present application;
FIG. 4 is a flowchart illustrating a dynamic mastering method for audio according to a fourth embodiment of the present application;
FIG. 5 is a flowchart illustrating a dynamic mastering method for audio according to a fifth embodiment of the present application;
FIG. 6 is a schematic diagram of a dynamic master processing apparatus for audio according to a first embodiment of the present application;
FIG. 7 is a schematic diagram of a dynamic master processing apparatus for audio according to a second embodiment of the present application;
FIG. 8 is a schematic diagram of a dynamic master processing apparatus for audio according to a third embodiment of the present application;
FIG. 9 is a schematic diagram of a dynamic master processing apparatus for audio according to a fourth embodiment of the present application;
fig. 10 is a schematic structural diagram of a dynamic master tape processing apparatus for audio according to a fifth embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The dynamic master tape processing method for audio comprises the following steps: determining the input volume proportion of audio data to be processed; and mixing the audio data to be processed according to the input volume proportion and preset logic, and controlling the output volume range in the mixing process. Controlling parameters for mastering by an adaptive manner, accomplishing a time-varying: the mixing proportion of the dry sound derived signals such as dry sound, reverberation and echo and the like and the accompaniment which change along with the change of time is ensured, and the dynamic range of the output signal is ensured.
As shown in fig. 1, the method includes steps S102 to S104 as follows:
step S102, determining the input volume proportion of audio data to be processed;
the audio data to be processed includes a plurality of types, and each is independent. Typically the audio data to be processed may comprise: dry sound, reverberation, echo, and accompaniment. Wherein, the dry sound refers to the voice of a person recorded when a song is sung. The reverberation and the echo belong to a derivative signal of the dry sound. In this step, it is necessary to input the dry sound, the dry sound derivative signal, and the accompaniment in different volume ratios.
It is noted that the inputs to be handled as master tape need to determine which audio to be processed and the input volume ratio to each other. The volume ratio is not limited in this application, and those skilled in the art can select the volume ratio according to the actual usage scenario.
And step S104, mixing the audio data to be processed according to the input volume proportion and preset logic, and controlling the output volume range in the mixing process.
And mixing the audio data to be processed according to a preset logic according to the input volume proportion, such as mixing human voice and wet voice. And finally mixing the accompaniment. Mixing is required according to a preset treatment sequence. Since the input volume ratio changes with time, the volume ratio between different audio data is adjusted with time.
In addition, the output volume range is controlled in the mixing process to be used as an output index of the master tape processing.
It should be noted that, when mixing is performed according to the volume ratio, the volume ratio is calculated through the correlation of the audio data to be processed, and the specific calculation manner is not limited in the embodiment of the present application as long as the requirement of the volume processing ratio is met.
From the above description, it can be seen that the following technical effects are achieved by the present application:
in the embodiment of the application, a mode of determining the input volume proportion of the audio data to be processed is adopted, the audio data to be processed is mixed according to the preset logic according to the input volume proportion, and the output volume range is controlled in the mixing process, so that the aim of dynamic processing of the master tape is fulfilled, the technical effect of controlling the relevant parameters for processing the master tape in a self-adaptive mode to complete the mixing proportion which changes along with the time change is achieved, and the technical problem of low accuracy of master tape processing is solved.
According to the embodiment of the present application, as a preferred option in the embodiment, as shown in fig. 2, determining the input volume ratio of the audio data to be processed includes: the method comprises the following steps of mixing dry sound and wet sound to be processed:
step S202, keeping the volume of the dry sound unchanged, and simultaneously reducing the volume of the wet sound according to a preset proportion;
first, a mixing process of dry sound and wet sound is required, wherein the volume ratio needs to be adjusted when the mixing process is performed. Since the dry sound and the wet sound are mixed in real time, the preset ratio is determined according to the ratio of the dry sound to the wet sound in the previous time interval, and the subsequent volume ratio can be calculated according to the volume ratio determined in the previous time interval. The former time interval is determined by the volume of the dry sound and the volume of the wet sound in the first few seconds divided by time.
Specifically, the volume of the wet sound is reduced while maintaining the dry sound volume unchanged for the mixing of the dry sound and the wet sound. The reduction ratio of the volume of the wet sound is determined by the ratio of the dry sound to the wet sound in the first few seconds, and the wet sound after the few seconds needs to be reduced by the same ratio in real-time processing.
Further, the method for determining the reduction ratio is as follows: firstly, the volumes of the dry sound and the wet sound are adjusted to be consistent, and then the wet sound is reduced again according to a control signal used when the real-time reverberation is calculated. Meanwhile, the adaptability fine adjustment is carried out according to other factors on the basis. Wherein the control signal used may be a monotonic non-linear mapping of the average word duration of each lyric in the range of less than 1 and greater than 0. Wherein, the volume adjustment of the dry sound and the wet sound is consistent, and normalization processing can be selected.
According to the embodiment of the present application, as a preferred option in the embodiment, as shown in fig. 3, determining the input volume ratio of the audio data to be processed includes: the echo to be processed is processed in a mixing way:
step S302 is a step of calculating a reduction amount of the echo according to a volume of the accompaniment, and reducing a volume of the echo according to the reduction amount so that the volume of the echo is small when the volume of the accompaniment is large and the volume of the echo is large when the volume of the accompaniment is small.
Next, it is necessary to further mix the results obtained by mixing the dry sound and the wet sound. The hybrid processing is hybrid echo. The amount of echo required to be reduced in whole can be calculated according to the accompaniment volume of the song, and then the volume of echo is reduced according to the amount of echo required to be reduced in whole.
Through the operation of the above-mentioned volume of reducing the echo can make when the volume of accompaniment is big the volume of echo is little, and the volume of accompaniment is little the volume of echo is big. Thereby achieving the purpose of adjusting the volume after mixing.
Specifically, the echo mixing is continued based on the result of mixing the dry sound and the wet sound. The main steps of the hybrid echo include: and calculating the integral reduction amount of the echo according to the accompaniment volume of the singing song, and then reducing the echo. Wherein the reduction amount is determined by the volume of the accompaniment.
Further, calculate the volume of accompanying first, then adjust the volume of echo according to the volume of accompanying, the final regulation objective is: when the volume of the accompanying sound is large, the volume of the echo is small, and when the volume of the accompanying sound is small, the volume of the echo is large; and the echo is reduced by a greater amount to a level that is "audible, but inaudible" to the user.
It should be noted that, in the foregoing embodiment, only the echo is taken as an example, and a person skilled in the art can also add reverberation, echo, and vocal-pad related derivative audio signals according to an actual usage scenario to perform volume mixing processing, which is not limited in this application and mainly can meet the requirement of the mixing processing.
According to the embodiment of the present application, as a preference in the embodiment, as shown in fig. 4, determining the input volume ratio of the audio data to be processed includes: a step of performing mixing processing on the accompaniment to be processed:
step S402, amplifying the dry sound to a fixed volume level;
after echo mixing by the above, a mixed accompaniment is also required. First, the dry voice, i.e., the voice of a person during recording of a singing, needs to be amplified to a fixed volume level. For example, the preset threshold value of the volume of the human voice can be used. I.e. so that the volume of the above-mentioned dry sound is fixed.
Step S404, enlarging the accompaniment to a range lower than the fixed volume level.
And then the accompaniment of the singing song is amplified to a range lower than the fixed volume. For example, the scale of amplification of the accompaniment is in the range of 2-3 db lower than the volume of human voice.
Specifically, it is a mix for accompaniment. First, the dry sound is amplified to a fixed volume level, and then, the accompaniment is amplified to a range of 2 to 4dB lower than the dry sound accompaniment level.
Through the mixed processing operation, the problems of too small or too large dry sound, too stuffy integral tone, too large wet sound and the like can be solved, and the volume proportion can be adjusted according to time.
According to the embodiment of the present application, as a preferred feature in the embodiment, as shown in fig. 5, mixing the audio data to be processed according to the input volume ratio and according to a preset logic, and controlling the output volume range in the mixing process includes:
step S502, mixing the audio data to be processed according to the sequence of the dry sound, the dry sound derived signal and the accompaniment according to the input volume proportion which changes along with time, and dynamically controlling the output volume range in the mixing process. In order to ensure a better processing effect, in the embodiment of the present application, a processing sequence of first mixing dry sound and wet sound, then mixing echo, and finally mixing accompaniment is adopted.
In the embodiment of this application, through above-mentioned operation, can control the parameter that uses in the master tape processing module through self-adaptation's mode, accomplish along with time variation, the dry sound, reverberation, the dry sound derivative signals such as echo and the mixture ratio that the accompaniment changes along with time variation to guarantee output signal's dynamic range.
As a preference in this embodiment, the dynamic master tape processing method for audio in this embodiment includes: determining the input volume proportion of audio data to be processed; and mixing the audio data to be processed according to the input volume proportion and preset logic, and controlling the output volume range in the mixing process.
Determining the input volume proportion of the audio data to be processed comprises: the method comprises the following steps of mixing dry sound and wet sound to be processed: keeping the volume of the dry sound unchanged, and simultaneously reducing the volume of the wet sound according to a preset proportion; wherein the preset ratio is determined according to a ratio of the dry sound and the wet sound amounts in a preceding period of time.
Determining the input volume proportion of the audio data to be processed comprises: the echo to be processed is processed in a mixing way: and calculating a reduction amount of the echo according to the volume of the accompaniment, and reducing the volume of the echo according to the reduction amount so that the volume of the echo is small when the volume of the accompaniment is large and the volume of the echo is large when the volume of the accompaniment is small.
Determining the input volume proportion of the audio data to be processed comprises: a step of performing mixing processing on the accompaniment to be processed: amplifying the dry sound to a fixed volume level; amplifying the accompaniment to a range lower than the fixed volume level.
In addition, mixing the audio data to be processed according to a preset logic according to the input volume proportion, and controlling the output volume range in the mixing process comprises: and mixing the audio data to be processed according to the input volume proportion which changes along with time according to the sequence of the dry sound, the dry sound derived signals and the accompaniment, and dynamically controlling the output volume range in the mixing process.
The implementation principle of the application is as follows:
first, the adaptive parameters may include:
(1) and calculating the changes of the average energy, the maximum amplitude, the rhythm and the loudness of the accompaniment along with time.
(2) And calculating the maximum amplitude of the dry sound digital signal. Sound pitch information of dry sounds.
(3) And calculating the average value of the duration of the original lyrics, the change of the duration of the original lyrics along with time and the amplitude attenuation coefficient of the derivative signals of the dry sound along with the change of time.
And secondly, controlling the amplitude and frequency components of the dry sound derivative signals of reverberation, echo, mat singing and the like along with the change of time through the average value of the duration of the original lyrics, the change of the duration of the original lyrics along with the change of time and the amplitude attenuation coefficient of the dry sound derivative signals along with the change of time. The proportion of the dry sound and the accompaniment is adjusted through the preprocessing of the self-adaptive parameters, and the dry sound derivative signals are mixed with the accompaniment in the mixer. And then the mixed signal is subjected to peak-to-average ratio adjustment through self-adaptive parameters, and the dynamic range of the output signal is ensured.
Finally, to ensure that the signal does not exceed the range, a 2-or 3-fold soft slicer may be used to range protect the data.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
According to an embodiment of the present application, there is also provided an apparatus for implementing the above dynamic master processing method for audio, as shown in fig. 6, the apparatus includes: a determining module 10, configured to determine an input volume ratio of audio data to be processed; and a control module 20, configured to mix the audio data to be processed according to the input volume ratio and according to a preset logic, and control an output volume range in a mixing process.
The determining module 10 of the embodiment of the present application includes a plurality of types of audio data to be processed, and each of the types of audio data is independent. Typically the audio data to be processed may comprise: dry sound, reverberation, echo, and accompaniment. Wherein, the dry sound refers to the voice of a person recorded when a song is sung. The reverberation and the echo belong to a derivative signal of the dry sound. In this step, it is necessary to input the dry sound, the dry sound derivative signal, and the accompaniment in different volume ratios.
It is noted that the inputs to be handled as master tape need to determine which audio to be processed and the input volume ratio to each other. The volume ratio is not limited in this application, and those skilled in the art can select the volume ratio according to the actual usage scenario.
In the control module 20 of the embodiment of the present application, the audio data to be processed is mixed according to a preset logic, for example, human voice and wet voice are mixed first. And finally mixing the accompaniment. Mixing is required according to a preset treatment sequence. Since the input volume ratio changes with time, the volume ratio between different audio data is adjusted with time.
In addition, the output volume range is controlled in the mixing process to be used as an output index of the master tape processing.
It should be noted that, when mixing is performed according to the volume ratio, the volume ratio is calculated through the correlation of the audio data to be processed, and the specific calculation manner is not limited in the embodiment of the present application as long as the requirement of the volume processing ratio is met.
According to the embodiment of the present application, as shown in fig. 7, as a preferred feature in the embodiment, the determining module includes: the wet sound reduction processing unit 101 is configured to keep the volume of the dry sound unchanged, and reduce the volume of the wet sound according to a preset proportion; wherein the preset ratio is determined according to a ratio of the dry sound and the wet sound amounts in a preceding period of time.
In the wet sound reduction processing unit 101 of the embodiment of the present application, first, it is necessary to perform mixing processing of dry sound and wet sound, in which the volume ratio needs to be adjusted when performing the mixing processing. Since the dry sound and the wet sound are mixed in real time, the preset ratio is determined according to the ratio of the dry sound to the wet sound in the previous time interval, and the subsequent volume ratio can be calculated according to the volume ratio determined in the previous time interval. The former time interval is determined by the volume of the dry sound and the volume of the wet sound in the first few seconds divided by time.
Specifically, the volume of the wet sound is reduced while maintaining the dry sound volume unchanged for the mixing of the dry sound and the wet sound. The reduction ratio of the volume of the wet sound is determined by the ratio of the dry sound to the wet sound in the first few seconds, and the wet sound after the few seconds needs to be reduced by the same ratio in real-time processing.
Further, the method for determining the reduction ratio is as follows: firstly, the volumes of the dry sound and the wet sound are adjusted to be consistent, and then the wet sound is reduced again according to a control signal used when the real-time reverberation is calculated. Meanwhile, the adaptability fine adjustment is carried out according to other factors on the basis. Wherein the control signal used may be a monotonic non-linear mapping of the average word duration of each lyric in the range of less than 1 and greater than 0. Wherein, the volume adjustment of the dry sound and the wet sound is consistent, and normalization processing can be selected.
According to the embodiment of the present application, as shown in fig. 8, as a preferred feature in the embodiment, the determining module includes: an echo reduction processing unit 102 for calculating a reduction amount of the echo according to a volume of the accompaniment, and reducing a volume of the echo according to the reduction amount so that the volume of the echo is small when the volume of the accompaniment is large and the volume of the echo is large when the volume of the accompaniment is small.
In the echo reduction processing unit 102 according to the embodiment of the present application, it is necessary to further perform mixing processing on the results obtained after the above-mentioned dry sound and wet sound are mixed. The hybrid processing is hybrid echo. The amount of echo required to be reduced in whole can be calculated according to the accompaniment volume of the song, and then the volume of echo is reduced according to the amount of echo required to be reduced in whole.
Through the operation of the above-mentioned volume of reducing the echo can make when the volume of accompaniment is big the volume of echo is little, and the volume of accompaniment is little the volume of echo is big. Thereby achieving the purpose of adjusting the volume after mixing.
Specifically, the echo mixing is continued based on the result of mixing the dry sound and the wet sound. The main steps of the hybrid echo include: and calculating the integral reduction amount of the echo according to the accompaniment volume of the singing song, and then reducing the echo. Wherein the reduction amount is determined by the volume of the accompaniment.
Further, calculate the volume of accompanying first, then adjust the volume of echo according to the volume of accompanying, the final regulation objective is: when the volume of the accompanying sound is large, the volume of the echo is small, and when the volume of the accompanying sound is small, the volume of the echo is large; and the echo is reduced by a greater amount to a level that is "audible, but inaudible" to the user.
It should be noted that, in the foregoing embodiment, only the echo is taken as an example, and a person skilled in the art can also add reverberation, echo, and vocal-pad related derivative audio signals according to an actual usage scenario to perform volume mixing processing, which is not limited in this application and mainly can meet the requirement of the mixing processing.
According to the embodiment of the present application, as a preference in the embodiment, as shown in fig. 9, the determination module includes an amplification unit 104 for amplifying the dry sound to a fixed volume level; an accompaniment processing unit 105 for enlarging the accompaniment to a range lower than the fixed volume level.
In the amplifying unit 104 of the embodiment of the present application, after echo mixing is performed as described above, mixed accompaniment is also required. First, the dry voice, i.e., the voice of a person during recording of a singing, needs to be amplified to a fixed volume level. For example, the preset threshold value of the volume of the human voice can be used. I.e. so that the volume of the above-mentioned dry sound is fixed.
The accompaniment processing unit 105 of the embodiment of the present application then enlarges the accompaniment of the singing song to a range lower than the fixed volume. For example, the scale of amplification of the accompaniment is in the range of 2-3 db lower than the volume of human voice.
Specifically, it is a mix for accompaniment. First, the dry sound is amplified to a fixed volume level, and then, the accompaniment is amplified to a range of 2 to 4dB lower than the dry sound accompaniment level.
Through above-mentioned mixed processing module, not only can solve the dry sound undersize or too big, the whole tone quality is too vexed, the too big problem of waiting of wet sound, can also adjust the volume proportion according to the time.
According to the embodiment of the present application, as shown in fig. 10, as a preferred feature in the embodiment, the control module includes: and the dynamic control unit 201 is configured to mix the audio data to be processed according to the input volume ratio changing with time in the sequence of the dry sound, the dry sound derived signal and the accompaniment, and dynamically control the output volume range in the mixing process.
It will be apparent to those skilled in the art that the modules or steps of the present application described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and they may alternatively be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or fabricated separately as individual integrated circuit modules, or fabricated as a single integrated circuit module from multiple modules or steps. Thus, the present application is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (2)
1. A method for dynamic mastering of audio, comprising:
determining the input volume proportion of audio data to be processed; and
mixing the audio data to be processed according to the input volume proportion and preset logic, and controlling the output volume range in the mixing process, wherein the mixing process comprises the following steps:
mixing the audio data to be processed according to the input volume proportion which changes along with time according to the sequence of the dry sound, the dry sound derived signals and the accompaniment, and dynamically controlling the output volume range in the mixing process;
wherein the determining the input volume proportion of the audio data to be processed comprises:
the method comprises the following steps of mixing dry sound and wet sound to be processed: keeping the volume of the dry sound unchanged, and simultaneously reducing the volume of the wet sound according to a preset proportion; wherein the preset proportion is determined according to the proportion of the dry sound and the wet sound in the previous time interval;
the echo to be processed is processed in a mixing way: calculating a reduction amount of the echo according to the volume of the accompaniment, and reducing the volume of the echo according to the reduction amount so that the volume of the echo is small when the volume of the accompaniment is large and the volume of the echo is large when the volume of the accompaniment is small;
a step of performing mixing processing on the accompaniment to be processed: amplifying the dry sound to a fixed volume level; amplifying the accompaniment to a range lower than the fixed volume level.
2. A dynamic master processing apparatus for audio, comprising:
the determining module is used for determining the input volume proportion of the audio data to be processed; and
the control module is used for mixing the audio data to be processed according to the input volume proportion and preset logic and controlling the output volume range in the mixing process;
the control module includes: the dynamic control unit is used for mixing the audio data to be processed according to the input volume proportion which changes along with time and the sequence of the dry sound, the dry sound derived signal and the accompaniment, and dynamically controlling the output volume range in the mixing process;
the determining module comprises: the wet sound reduction processing unit is used for keeping the volume of the dry sound unchanged and reducing the volume of the wet sound according to a preset proportion; wherein the preset proportion is determined according to the proportion of the dry sound and the wet sound in the previous time interval;
an echo reduction processing unit configured to calculate a reduction amount of the echo according to a volume of an accompaniment and reduce a volume of the echo according to the reduction amount so that the volume of the echo is small when the volume of the accompaniment is large and the volume of the echo is large when the volume of the accompaniment is small;
an amplifying unit for amplifying the dry sound to a fixed volume level;
an accompaniment processing unit for magnifying the accompaniment to a range lower than the fixed volume level.
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