CN116994608A - Method, system and equipment for processing mother belt sound and storage medium - Google Patents
Method, system and equipment for processing mother belt sound and storage medium Download PDFInfo
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- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/27—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique
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- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
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Abstract
The invention provides a method, a system, equipment and a storage medium for processing a mother tape sound, which belong to the technical field of sound processing, and realize automatic frequency adjustment, dynamic adjustment, sound field adjustment and loudness adjustment of the mother tape sound file to be processed by extracting reference data for adjusting the mother tape sound file to be processed from target reference tracks of the mother tape sound file to be processed.
Description
Technical Field
The invention belongs to the technical field of sound processing, and particularly relates to a method, a system, equipment and a storage medium for processing a mother belt sound.
Background
The mastering process, as the last loop in the sound production process, determines a series of critical factors for style, detail, standardization, etc. Under the condition of rapid development of data analysis nowadays, auxiliary functions of noise reduction and music synthesis are rapidly developed in the sound industry according to an online or local database, but no corresponding data analysis and auxiliary tools for sound processing exist in the field of master sound processing, and in the current music production link, cognition and standardization of master production are generally lacking.
Under the entertainment background that the sound production threshold is lower and the market demand is higher and higher, but the production period is shorter and the overall production precision is lower and higher, many music producers are suffering from short construction period and large project in production speed, master band engineers are suffering from inconvenient communication with producers in expression demand, increase internal consumption cost, and are suffering from uneven music style, finished product quality and loudness of each music platform in standardization.
Disclosure of Invention
Based on the current situation of the prior art of the acoustic processing of the mother tape, the invention provides a method, a system, a device and a storage medium for the acoustic processing of the mother tape, which are used for overcoming at least one technical problem existing in the prior art.
In order to achieve the above object, the present invention provides a method for processing a mother band, comprising:
extracting frequency data, dynamic range data, sound field data and loudness data of a target reference track of a to-be-processed master tape sound file, and respectively serving as frequency adjustment reference data, dynamic adjustment reference data, sound field adjustment reference data and loudness adjustment reference data of the to-be-processed master tape sound file;
and respectively carrying out frequency adjustment, dynamic adjustment, sound field adjustment and loudness adjustment on the to-be-processed master sound file according to the frequency adjustment reference data, the dynamic adjustment reference data, the sound field adjustment reference data and the loudness adjustment reference data to obtain the master sound file subjected to sound processing.
In order to solve the above problems, the present invention also provides a mother belt sound processing system, the system comprising:
the reference data extraction module is used for extracting frequency data, dynamic range data, sound field data and loudness data of a target reference track of the to-be-processed master tape sound file and respectively used as frequency adjustment reference data, dynamic adjustment reference data, sound field adjustment reference data and loudness adjustment reference data of the to-be-processed master tape sound file;
and the adjustment processing module is used for respectively carrying out frequency adjustment, dynamic adjustment, sound field adjustment and loudness adjustment on the to-be-processed master sound file according to the frequency adjustment reference data, the dynamic adjustment reference data, the sound field adjustment reference data and the loudness adjustment reference data to obtain the master sound file subjected to sound processing.
In order to solve the above problems, the present invention also provides an electronic device including:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to the at least one processor; wherein,,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform steps in a master batch sonication method as previously described.
In order to solve the above-mentioned problem, the present invention further provides a computer readable storage medium, in which at least one instruction is stored, which when executed by a processor in an electronic device, implements the above-mentioned method of processing a mother tape.
According to the method, the system, the equipment and the storage medium for processing the master tape sound, the reference data for adjusting the master tape sound file to be processed is extracted from the target reference track of the master tape sound file to be processed, so that the frequency adjustment, the dynamic adjustment, the sound field adjustment and the loudness adjustment of the master tape sound file to be processed are automatically realized.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a method for processing a mother tape according to an embodiment of the invention;
FIG. 2 is a schematic block diagram of a master batch sound processing system according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an internal structure of an electronic device for implementing a method for processing a mother tape according to an embodiment of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Based on the problems in the prior art, the invention mainly provides a method, a system, equipment and a storage medium for processing the sound of a mother tape, and the main purpose of the invention is to solve the problems that in the prior art, the sound processing of the mother tape is only manually judged and adjusted by a mother tape engineer, the processing flow is complex, the efficiency is low and the like.
Fig. 1 is a flow chart of a method for processing a mother tape according to an embodiment of the invention. The method may be performed by a system, which may be implemented in software and/or hardware.
Fig. 1 depicts the overall approach to the sonication of a master band. As shown in FIG. 1, in the present embodiment, the method for processing the mother belt comprises steps S110 to S120.
Step S110, extracting frequency data, dynamic range data, sound field data and loudness data of a target reference track of the to-be-processed master tape sound file, and respectively serving as frequency adjustment reference data, dynamic adjustment reference data, sound field adjustment reference data and loudness adjustment reference data of the to-be-processed master tape sound file.
Specifically, the target reference track is a track which is processed and adjusted to meet the requirement, and can be automatically or manually selected from a preset track database by a user through uploading the track by the user or through a preset track database.
As an alternative embodiment of the present invention, the method for acquiring the target reference track of the to-be-processed master tape sound file includes:
when a to-be-processed master sound file is received, generating a mode instruction for a user to select; the mode instruction comprises a first instruction for manually selecting the target reference track and the target track style and a second instruction for automatically selecting the target reference track and the target track style; the first instruction and the second instruction are matched with different target reference track selection flows in advance;
And executing a target reference track selection process matched with the mode instruction selected by the user to acquire the target reference track of the to-be-processed master tape sound file.
Specifically, when the processor receives the to-be-processed master audio file uploaded by the user, a mode instruction for the user to select is generated. The mode instructions can exist in the form of pages or voice prompts, the mode instructions are divided into two types, namely a first instruction for manually selecting target reference tracks and target track styles and a second instruction for automatically selecting target reference tracks and target track styles, and the corresponding target reference track selection flow is selected according to the mode instructions selected by the user, for example, the first instruction is selected by the user, and then the corresponding target reference track selection flow is correspondingly entered for the user to perform subsequent operation so as to select target reference tracks meeting the user requirements; and if the user selects the second instruction, the process of automatically selecting the target reference track is correspondingly entered, and the target track is automatically selected from a preset track database according to the preset rule of selecting the target reference track. The rule of selecting the target reference track may be to randomly select the target reference track according to the category of the track in the to-be-processed master tape sound file, for example, when the category of the to-be-processed track in the to-be-processed master tape sound file is rock, a preset number of tracks which are both rock categories are selected from a preset track database as the target reference track. Of course, the rule of the target reference track can be flexibly formulated according to the needs of the user, and is not limited to the rule selected according to the category of the track to be processed.
As an alternative embodiment of the present invention, the target reference track selection procedure matched with the first instruction includes:
when the mode instruction selected by the user is a first instruction, generating a track selection mode and a track input mode for the user to select; the track selection mode is used for enabling a user to randomly select tracks from a preset track database; the track input mode is used for directly uploading the tracks by the user;
and taking the track selected by the user through the track selection mode and/or the track uploaded by the user through the track input mode as a target reference track of the to-be-processed master tape sound file.
Specifically, when the mode instruction selected by the user is the first instruction, it is indicated that the user needs to manually select the target reference track, and then a track selection mode and a track input mode for the user to select can be generated according to the first instruction, and the track selection mode is associated with a preset track database, so that the user can randomly select a track from the preset track database as the target reference track of the to-be-processed master tape sound file; when a user selects a track input mode, the user is required to upload the track as a target reference track of a to-be-processed master tape sound file, and more selection space is provided for the user, so that the first instruction is more suitable for master tape processing auxiliary operation used in industry.
As an alternative embodiment of the present invention, the target reference track selection procedure matched with the second instruction includes:
when the mode instruction selected by the user is the second instruction, selecting a preset number of tracks with the same track category as the to-be-processed master tape sound file from a preset track database through a preset category identification model, and taking the tracks as target reference tracks of the to-be-processed master tape sound file.
Specifically, when the user selects the second instruction, the process of automatically selecting the target reference tracks is described, and at this time, the processor automatically selects a preset number of target reference tracks from the preset track database according to a preset target reference track selection rule, for example, the target reference track selection rule is to select a preset number of target reference tracks according to the track category of the to-be-processed master audio file. In order to facilitate the automatic selection of the target reference tracks, the purpose of automatically selecting a preset number of tracks which are the same as the track types of the to-be-processed master audio file from the preset track database when the user selects the second instruction can be achieved by training the preset type recognition model. The preset category identification model comprises an input layer, an analysis identification layer and an output layer; the input layer user obtains a master sound file to be processed; the analysis and identification layer is used for analyzing the category of the tracks of the to-be-processed master tape sound file, and randomly selecting a preset number of tracks which are the same as the category of the tracks of the to-be-processed master tape sound file from a preset track database to serve as target reference tracks; the output layer is used for outputting target reference tracks, the preset category identification model can be obtained by taking a neural network model in the prior art as a basic model and collecting track samples of different categories for classification training, and redundant description is omitted here. The second instruction is strong in automation, but the user cannot finely adjust one by one, so that the method is suitable for civil master tape processing operation, the user only needs to input the master tape sound file to be processed, and the sound processing of the master tape sound file to be processed can be automatically and quickly completed by selecting the second instruction, so that the efficiency is higher.
As an alternative embodiment of the present invention, in extracting frequency data, dynamic range data, sound field data, and loudness data of a target reference track of a master sound file to be processed, and respectively serving as frequency adjustment reference data, dynamic adjustment reference data, sound field adjustment reference data, and loudness adjustment reference data of the master sound file to be processed,
the number of target reference tracks may be one or at least two;
when the number of the target reference tracks is at least two, taking the average value of the frequency data, the average value of the dynamic range data, the average value of the sound field data and the average value of the loudness data of the target reference tracks as frequency adjustment reference data, dynamic adjustment reference data, sound field adjustment reference data and loudness adjustment reference data of the to-be-processed master sound file respectively.
Specifically, the number of target reference tracks may be one or more, and may be determined according to a user's selection, and when there are a plurality, all the reference data use an average value.
And step 120, respectively performing frequency adjustment, dynamic adjustment, sound field adjustment and loudness adjustment on the to-be-processed master sound file according to the frequency adjustment reference data, the dynamic adjustment reference data, the sound field adjustment reference data and the loudness adjustment reference data to obtain the master sound file subjected to sound processing.
Specifically, the frequency adjustment, the dynamic adjustment, the sound field adjustment and the loudness adjustment of the to-be-processed master sound file can be sequentially performed according to a preset sequence, and an adjustment sequence window can also be provided for the user, for example, when the user selects a first instruction, the user correspondingly matches the option for selecting the adjustment processing sequence of the to-be-processed master sound file, and the user sequences the frequency adjustment, the dynamic adjustment, the sound field adjustment and the loudness adjustment according to the needs; and based on the sequencing, respectively carrying out frequency adjustment, dynamic adjustment, sound field adjustment and loudness adjustment on the master sound file to be processed according to the frequency adjustment reference data, the dynamic adjustment reference data, the sound field adjustment reference data and the loudness adjustment reference data. When the user selects the second instruction, the master sound file to be processed is sequentially subjected to adjustment processing according to the frequency adjustment reference data, the dynamic adjustment reference data, the sound field adjustment reference data and the loudness adjustment reference data and the sequence of the frequency adjustment, the dynamic adjustment, the sound field adjustment and the loudness adjustment.
As an alternative embodiment of the present invention, performing frequency adjustment on a master sound file to be processed according to frequency adjustment reference data includes: frequency response correction and frequency response stylization processing; wherein,,
The frequency response correction includes the steps of:
comparing the frequency spectrum to be processed of the to-be-processed master tape sound file with a reference frequency spectrum in frequency adjustment reference data by taking a sampling point as a unit, and marking excessive frequency bands and insufficient frequency bands in the frequency spectrum to be processed;
the method comprises the steps of restraining excessive frequency bands in a frequency spectrum to be processed through an equalizer and improving insufficient frequency bands in the frequency spectrum to be processed;
the frequency response stylization processing comprises the following steps:
comparing the average value of the frequency spectrum to be processed of the master band sound file to be processed with the average value of the reference frequency spectrum in the frequency adjustment reference data, and carrying out imitation alignment on the frequency of the frequency spectrum to be processed to the frequency of the reference frequency spectrum through an equalizer.
Specifically, when the user selects the first instruction, a frequency adjustment content option that both the frequency response correction and the frequency response stylization process are executed or only the frequency response correction is executed may be provided for the user; when the user selects the second instruction, then both the frequency response correction and the frequency response stylization processing may be performed by default. The main purpose of the frequency response correction is to solve the problem in the frequency aspect of the occurrence in the process of mixing (the last link of the to-be-processed master sound file): for example, the low frequency of the mixed sound works is excessively accumulated and pasted due to poor sound reproduction environment, the high frequency response of the monitoring equipment is poor during mixing, the high frequency in the mixed sound finished product is excessively improved, and the like. In this step, the processing is: the frequency spectrum of the to-be-processed master band sound file uploaded by a user is analyzed by taking a sampling point as a unit, frequency comparison is carried out on the basis of the principle that energy per octave is equal (meeting the hearing feeling of human ears and the publishing requirement of music recordings), then excessive frequency bands are restrained through sound processing methods such as an equalizer, a dynamic equalizer and the like, insufficient frequency bands are promoted, and therefore balanced hearing feeling is achieved. The frequency stylization process is followed, and the work is: performing the above frequency spectrum analysis on the frequency adjustment reference data, and performing the same frequency spectrum analysis on the to-be-processed master vocal files uploaded by the user; the frequency-adjusted reference data is compared to an average value of the frequency spectrum of the master audio file to be processed and the frequency of the file to be processed is approximately impersonated by the equalizer towards the selected reference track.
As an optional embodiment of the invention, dynamically adjusting the master batch sound file to be processed according to the dynamically adjusted reference data comprises: dynamic correction and dynamic stylization processing; wherein,,
the dynamic correction includes the steps of:
comparing the dynamic range to be adjusted of the to-be-processed master tape sound file with the reference dynamic range in the dynamic adjustment reference data, and calculating the difference value between the dynamic range to be adjusted and the reference dynamic range when the dynamic range to be adjusted is larger than the reference dynamic range;
determining the number of compressors used for compressing the dynamic range to be adjusted according to the preset limit value and the preset difference value of each compressor, and performing hierarchical compression on the dynamic range to be adjusted through the compressors until the difference value between the dynamic range to be adjusted and the reference dynamic range is smaller than the preset difference value threshold value, so as to finish dynamic correction of the master sound file to be processed;
the dynamic stylization process includes the steps of:
comparing the transient to be adjusted of the to-be-processed master tape sound file with the reference transient in the dynamic adjustment reference data;
when the transient to be regulated is weaker than the reference transient, the starting time of the compressor is prolonged, so that the gap between the transient to be regulated and the reference transient is reduced;
When the transient to be regulated is stronger than the reference transient, the starting time of the compressor is shortened to reduce the gap between the transient to be regulated and the reference transient.
In particular, dynamic range refers to the ratio between the maximum sound pressure level and the minimum sound pressure level, and transient refers to those sounds in a musical composition (particularly a percussion music) that are transient and explosive. A "staged compression" approach is employed. Comparing the dynamic range to be adjusted of the to-be-processed master tape sound file with a reference dynamic range in dynamic adjustment reference data, calculating a difference value between the dynamic range to be adjusted and the reference dynamic range when the dynamic range to be adjusted is larger than the reference dynamic range, determining the number of compressors used for compressing the dynamic range to be adjusted according to a preset limit value and the difference value of each compressor, and carrying out hierarchical compression on the dynamic range to be adjusted through the compressors until the difference value between the dynamic range to be adjusted and the reference dynamic range is smaller than a preset difference value threshold value, thereby completing dynamic correction of the to-be-processed master tape sound file. Each compressor compresses in principle no more than 2dB, if so, a second compressor is used. The stylization process is to compare and analyze the reference transient and the transient to be adjusted (i.e. the dynamic state of microscopic angle). The dynamic stylization processing is carried out after the dynamic correction, and relevant parameters of the compressor are adjusted according to the comparison result: if the transient state to be adjusted is weaker, the starting time of the compressor is prolonged so as to keep enough starting vibration of sound, otherwise, the starting time is shortened, and the transient state is reduced; if the dynamically corrected master tape file to be processed has obvious suction sense, namely, no obvious attenuation area exists after transient vibration is analyzed, and even the level of the attenuation area is gradually increased, the system can prolong the release time of the compressor or properly adjust the compressor to a soft inflection point mode.
As an alternative embodiment of the present invention, performing sound field adjustment on a master sound file to be processed according to sound field adjustment reference data comprises the steps of:
converting the to-be-processed master sound file into an M-S sound channel file to be adjusted through an LR-MS matrix, and taking the M/S ratio in the M-S sound channel file to be adjusted as the M/S ratio to be adjusted;
and comparing the M/S ratio to be adjusted with a reference M/S ratio in the sound field adjustment reference data, and increasing the level of the S channel of the master sound file to be processed or reducing the level of the M channel when the M/S ratio to be adjusted is smaller than the reference M/S ratio until the difference between the M/S ratio to be adjusted and the reference M/S ratio is smaller than a preset M/S ratio difference threshold value, thereby completing the sound field adjustment of the master sound file to be processed.
Specifically, the master file to be processed is converted into a file of M-S sound channel through an LR-MS matrix. Wherein the conversion logic is: and (3) comparing and analyzing the ratio of the reference M/S to the M/S to be adjusted in the sound field adjustment reference data, wherein if the ratio of the reference M/S is larger than the ratio of the M/S to be adjusted, the sound field of the master sound file to be processed is too narrow, the level of the S channel of the track to be processed is increased or the level of the M channel is reduced until the level is approximately equal to that of the reference track.
As an optional embodiment of the invention, the step of loudness adjusting the master sound file to be processed according to the loudness adjustment reference data comprises:
taking the LUFS as a loudness measurement unit, and acquiring the average loudness in the to-be-processed master sound file as the average loudness to be adjusted;
comparing the average loudness to be adjusted with the reference average loudness in the loudness adjustment reference data;
when the difference value between the average loudness to be adjusted and the reference average loudness is larger than or equal to the preset loudness adjustment difference value, determining the number of limiters according to the difference value and the preset adjustment difference value threshold value of each limiter, and adjusting the average loudness of the to-be-processed master sound file by adopting the limiters until the difference value between the average loudness to be adjusted and the reference average loudness is smaller than the preset loudness adjustment difference value, so as to finish the loudness adjustment of the to-be-processed master sound file.
Specifically, by adopting the mode of 'stage compression' and 'stage limitation', the influence on the transient state of the track after the sound processing by using the compressor and the limiter can be reduced to the greatest extent, so that the dynamic range is reduced, the expected loudness is achieved, the dynamic sense can be kept as much as possible on the listening sense, and the tension of music is kept. Wherein the dynamic range limited by the limiter preferably does not exceed 2dB, and if this range is exceeded, a new limiter is added.
As an alternative embodiment of the invention, the master audio file to be processed comprises one track to be processed or at least two tracks to be processed;
if the to-be-processed master tape sound file comprises at least two to-be-processed tracks, when all to-be-processed tracks in the to-be-processed master tape sound file are subjected to sound processing, obtaining the to-be-processed master tape sound file;
selecting any one track from the sound-processed master tape sound file as a standard track, and other tracks as tracks to be adjusted;
and respectively taking the frequency spectrum and the loudness of the standard track as the standard frequency spectrum and the standard loudness, and respectively adjusting the frequency spectrum and the loudness of the track to be adjusted to be consistent with the standard frequency spectrum and the standard loudness.
Specifically, the number of tracks to be processed in the master audio file to be processed may be one or more, that is, the master audio file to be processed may be an album containing a plurality of tracks. When a plurality of tracks are to be processed, a target reference track needs to be selected for each track to be processed, and then subsequent adjustment processing is performed. When all the tracks to be processed in the master tape sound file to be processed are subjected to sound processing, obtaining the master tape sound file subjected to sound processing, selecting any one track from the master tape sound file subjected to sound processing as a standard track, and other tracks as tracks to be adjusted; and respectively taking the frequency spectrum and the loudness of the standard track as the standard frequency spectrum and the standard loudness, and respectively adjusting the frequency spectrum and the loudness of the track to be adjusted to be consistent with the standard frequency spectrum and the standard loudness. For example, the to-be-processed master tape sound file is the master tape of the whole album, after each track is adjusted, a certain track in the album or the main song of the album is selected as a standard, and each track in the album is analyzed in terms of frequency spectrum and loudness again, and the tracks in the album are automatically processed into similar frequency response and loudness, so that a listener feels excessively natural and unobtrusive when listening to the album continuously.
The master band sound processing method provided by the invention is mainly applicable to two scenes, one is used for making songs for composers and demo or civil use, and the main working content is that the primary processing of the mixed sound of the songs is convenient, and the processing is carried out to obtain an audio finished product with balanced frequency response, proper dynamic range and proper loudness so as to achieve the optimal state of sound expression. Providing a good template for further song making, mixing and mastering. Secondly, the auxiliary processing operation of the professional master tape is used for providing master tape references for master tape engineers, and the stylization of master tape sound processing can be more conveniently carried out, thereby providing convenience for master tape manufacturing.
This master sound processing method only performs the content of the "basic adjustment" part when used as a make song demo and civil. The audio (the master audio file to be processed) is imported into the system or the system is inserted into the digital audio workstation in the form of a plug-in, the mode instruction selects the second instruction, the song is automatically identified and analyzed, and the frequency response, the dynamics and the loudness of the song are corrected: in the section with the largest loudness, the energy of each frequency band is kept basically consistent or close to dynamic balance, the dynamic range is controlled, and the loudness is finally raised to be proper loudness. The method does not need the user to understand the related knowledge and does not need the user to select the processing modes such as song style and the like, and the plug-in can automatically identify the song problem and solve the song problem in a targeted manner.
The processing method can serve as a reference when working as an aid to a professional master. The specific using method is as follows: the audio to be processed (the master audio file to be processed) is imported into the system, the user selects the first instruction, the target reference track is selected or input according to the user requirement, and after the target reference track is selected or input by the user, a selectable item can be selected: style follows and corrects only the problem. Only correcting the problem will not refer to the song style, only correcting the frequency response and dynamic problems, and the user can freely and flexibly adjust; and the selection style follows the complete analysis and processing process. Analyzing the problems of the to-be-processed master tape sound file in terms of frequency response and dynamics, and performing basic frequency response, dynamics and loudness processing on the sound; and then analyzing and summarizing according to the style type selected by the user and the characteristics of frequency response dynamics and the like of different types of songs, and finally performing characteristic processing on frequency, dynamics, sound field and sound on loudness. After the automatic master processing is performed on the sound, a final audio is generated, and at this time, a master chain used by the automatic master can be displayed, and plug-ins used in the adjustment processing of each sound used in the master, such as each equalizer, each compressor, each limiter, and the like, are displayed, so that a user can randomly modify and play previews in real time. The user can adjust the sequence of each plug-in of the master tape link, can replace the original sub-plug-in with other sound processing plug-ins or hardware, can adjust the specific parameters of the sub-plug-ins, can close the sub-plug-ins and the like. And each sound processing plug-in unit can carry out parallel processing through Mix knob convenient and fast, need not to establish complicated signal route like traditional parallel processing to reach the purpose that reduces the processing trace.
As shown in fig. 2, the present invention provides a master tape sound processing system 200 that may be installed in an electronic device. Depending on the implemented functionality, the master batch processing system 200 may include a reference data extraction module 210 and an adjustment processing module 220. The inventive unit, which may also be referred to as a module, refers to a series of computer program segments, which are stored in the memory of the electronic device, capable of being executed by the processor of the electronic device and of performing a fixed function.
In the present embodiment, the functions concerning the respective modules/units are as follows:
the reference data extracting module 210 is configured to extract frequency data, dynamic range data, sound field data, and loudness data of a target reference track of the to-be-processed master sound file, and respectively serve as frequency adjustment reference data, dynamic adjustment reference data, sound field adjustment reference data, and loudness adjustment reference data of the to-be-processed master sound file;
the adjustment processing module 220 is configured to perform frequency adjustment, dynamic adjustment, sound field adjustment, and loudness adjustment on the to-be-processed master audio file according to the frequency adjustment reference data, the dynamic adjustment reference data, the sound field adjustment reference data, and the loudness adjustment reference data, respectively, to obtain a master audio file subjected to sound processing.
According to the master tape sound processing system 200, the reference data for adjusting the master tape sound file to be processed is extracted from the target reference track of the master tape sound file to be processed, so that the frequency adjustment, the dynamic adjustment, the sound field adjustment and the loudness adjustment of the master tape sound file to be processed are automatically realized.
As shown in fig. 3, the present invention provides an electronic device 3 for a method of processing a mother tape.
The electronic device 3 may comprise a processor 30, a memory 31 and a bus, and may further comprise a computer program, such as a master batch program 32, stored in the memory 31 and executable on said processor 30. The memory 31 may also comprise both an internal memory unit and an external memory device of the parent tape sound processing system. The memory 31 may be used not only for storing code installed in application software and various types of data, such as a master batch sound processing program, but also for temporarily storing data that has been output or is to be output.
The memory 31 includes at least one type of readable storage medium, including flash memory, a mobile hard disk, a multimedia card, a card memory (e.g., SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, etc. The memory 31 may in some embodiments be an internal storage unit of the electronic device 3, such as a removable hard disk of the electronic device 3. The memory 31 may in other embodiments also be an external storage device of the electronic device 3, such as a plug-in mobile hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the electronic device 3. Further, the memory 31 may also include both an internal storage unit and an external storage device of the electronic device 3. The memory 31 may be used not only for storing application software installed in the electronic device 3 and various types of data, such as a master sound processing method code, etc., but also for temporarily storing data that has been output or is to be output.
The processor 30 may be comprised of integrated circuits in some embodiments, for example, a single packaged integrated circuit, or may be comprised of multiple integrated circuits packaged with the same or different functions, including one or more central processing units (Central Processing unit, CPU), microprocessors, digital processing chips, graphics processors, combinations of various control chips, and the like. The processor 30 is a Control Unit (Control Unit) of the electronic device, connects respective parts of the entire electronic device using various interfaces and lines, and executes various functions of the electronic device 3 and processes data by running or executing programs or modules (e.g., a master sound processing program, etc.) stored in the memory 31, and calling data stored in the memory 31.
The bus may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA) bus, among others. The bus may be classified as an address bus, a data bus, a control bus, etc. The bus is arranged to enable a connection communication between the memory 31 and at least one processor 30 or the like.
Fig. 3 shows only an electronic device with components, it being understood by a person skilled in the art that the structure shown in fig. 3 does not constitute a limitation of the electronic device 3, and may comprise fewer or more components than shown, or may combine certain components, or may be arranged in different components.
For example, although not shown, the electronic device 3 may further include a power source (such as a battery) for supplying power to the respective components, and preferably, the power source may be logically connected to the at least one processor 30 through a power management system, so as to implement functions of charge management, discharge management, and power consumption management through the power management system. The power supply may also include one or more of any of a direct current or alternating current power supply, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like. The electronic device 3 may further include various sensors, bluetooth modules, wi-Fi modules, etc., which will not be described herein.
Further, the electronic device 3 may also comprise a network interface, optionally comprising a wired interface and/or a wireless interface (e.g. WI-FI interface, bluetooth interface, etc.), typically used for establishing a communication connection between the electronic device 3 and other electronic devices.
The electronic device 3 may optionally further comprise a user interface, which may be a Display, an input unit, such as a Keyboard (Keyboard), or a standard wired interface, a wireless interface. Alternatively, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch, or the like. The display may also be referred to as a display screen or display unit, as appropriate, for displaying information processed in the electronic device 3 and for displaying a visual user interface.
It should be understood that the embodiments described are for illustrative purposes only and are not limited to this configuration within the scope of the application.
The master sound processing program 32 stored in the memory 31 of the electronic device 3 is a combination of instructions that, when executed in the processor 30, may implement:
Step S110, extracting frequency data, dynamic range data, sound field data and loudness data of a target reference track of a to-be-processed master tape sound file, and respectively serving as frequency adjustment reference data, dynamic adjustment reference data, sound field adjustment reference data and loudness adjustment reference data of the to-be-processed master tape sound file;
and step 120, respectively performing frequency adjustment, dynamic adjustment, sound field adjustment and loudness adjustment on the to-be-processed master sound file according to the frequency adjustment reference data, the dynamic adjustment reference data, the sound field adjustment reference data and the loudness adjustment reference data to obtain the master sound file subjected to sound processing.
Specifically, the specific implementation method of the above instructions by the processor 30 may refer to the description of the relevant steps in the corresponding embodiment of fig. 1, which is not repeated herein.
Further, the modules/units integrated by the electronic device 3 may be stored in a computer readable storage medium if implemented in the form of software functional units and sold or used as a stand alone product. The computer readable medium may include: any entity or system capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM).
Embodiments of the present invention also provide a computer readable storage medium, which may be non-volatile or volatile, storing a computer program which when executed by a processor implements:
step S110, extracting frequency data, dynamic range data, sound field data and loudness data of a target reference track of a to-be-processed master tape sound file, and respectively serving as frequency adjustment reference data, dynamic adjustment reference data, sound field adjustment reference data and loudness adjustment reference data of the to-be-processed master tape sound file;
and step 120, respectively performing frequency adjustment, dynamic adjustment, sound field adjustment and loudness adjustment on the to-be-processed master sound file according to the frequency adjustment reference data, the dynamic adjustment reference data, the sound field adjustment reference data and the loudness adjustment reference data to obtain the master sound file subjected to sound processing.
In particular, the specific implementation method of the computer program when executed by the processor may refer to the description of the relevant steps in the mother belt sound processing method of the embodiment, which is not described herein in detail.
In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus, system and method may be implemented in other manners. For example, the system embodiments described above are merely illustrative, e.g., the division of the modules is merely a logical function division, and other manners of division may be implemented in practice.
The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional module in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units can be realized in a form of hardware or a form of hardware and a form of software functional modules.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.
Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. A method of acoustically treating a master tape, comprising the steps of:
extracting frequency data, dynamic range data, sound field data and loudness data of a target reference track of a to-be-processed master tape sound file, and respectively serving as frequency adjustment reference data, dynamic adjustment reference data, sound field adjustment reference data and loudness adjustment reference data of the to-be-processed master tape sound file;
and respectively carrying out frequency adjustment, dynamic adjustment, sound field adjustment and loudness adjustment on the to-be-processed master sound file according to the frequency adjustment reference data, the dynamic adjustment reference data, the sound field adjustment reference data and the loudness adjustment reference data to obtain the master sound file subjected to sound processing.
2. The method for processing a mother tape according to claim 1, wherein the method for acquiring the target reference track of the mother tape sound file to be processed comprises:
when the to-be-processed master tape sound file is received, generating a mode instruction for a user to select; the mode instructions comprise a first instruction for manually selecting the target reference track and the target track style and a second instruction for automatically selecting the target reference track and the target track style; the first instruction and the second instruction are matched with different target reference track selection flows in advance;
And executing a target reference track selection flow matched with the mode instruction selected by the user so as to acquire the target reference track of the to-be-processed master tape sound file.
3. The method of claim 2, wherein the target reference track selection procedure matched to the first instruction comprises:
when the mode instruction selected by the user is the first instruction, generating a track selection mode and a track input mode for the user to select; the track selection mode is used for enabling a user to randomly select tracks from a preset track database; the track input mode is used for directly uploading tracks by a user;
taking the track selected by the user through the track selection mode and/or the track uploaded by the user through the track input mode as a target reference track of the to-be-processed master tape sound file;
and/or, the target reference track selection process matched with the second instruction comprises:
and when the mode instruction selected by the user is the second instruction, selecting a preset number of tracks with the same track category as the to-be-processed master tape sound file from the preset track database through a preset category identification model, and taking the selected tracks as target reference tracks of the to-be-processed master tape sound file.
4. The method according to claim 1, wherein in the process of extracting frequency data, dynamic range data, sound field data, and loudness data of the target reference track of the to-be-processed master sound file as frequency adjustment reference data, dynamic adjustment reference data, sound field adjustment reference data, and loudness adjustment reference data of the to-be-processed master sound file, respectively,
the number of target reference tracks may be one or at least two;
when the number of the target reference tracks is at least two, taking the average value of the frequency data, the average value of the dynamic range data, the average value of the sound field data and the average value of the loudness data of the target reference tracks as frequency adjustment reference data, dynamic adjustment reference data, sound field adjustment reference data and loudness adjustment reference data of the to-be-processed master sound file respectively.
5. The method of claim 1, wherein frequency adjusting the master sound file to be processed according to the frequency adjustment reference data comprises: frequency response correction and frequency response stylization processing; wherein,,
the frequency response correction comprises the following steps:
Comparing the frequency spectrum to be processed of the to-be-processed master band sound file with a reference frequency spectrum in the frequency adjustment reference data by taking a sampling point as a unit, and marking excessive frequency bands and insufficient frequency bands in the frequency spectrum to be processed;
the method comprises the steps of restraining excessive frequency bands in a frequency spectrum to be processed through an equalizer and improving insufficient frequency bands in the frequency spectrum to be processed;
the frequency response stylization processing comprises the following steps:
comparing the average value of the frequency spectrum to be processed of the master band sound file to be processed with the average value of the reference frequency spectrum in the frequency adjustment reference data, and carrying out imitation alignment on the frequency of the frequency spectrum to be processed to the frequency of the reference frequency spectrum through an equalizer; and/or the number of the groups of groups,
the dynamic adjustment of the to-be-processed master vocal tract sound file according to the dynamic adjustment reference data comprises the following steps: dynamic correction and dynamic stylization processing; wherein,,
the dynamic correction includes the steps of:
comparing the dynamic range to be adjusted of the to-be-processed master tape sound file with a reference dynamic range in the dynamic adjustment reference data, and calculating a difference value between the dynamic range to be adjusted and the reference dynamic range when the dynamic range to be adjusted is larger than the reference dynamic range;
Determining the number of compressors used for compressing the dynamic range to be adjusted according to a preset limit value of each compressor and the difference value, and performing hierarchical compression on the dynamic range to be adjusted through the compressors until the difference value between the dynamic range to be adjusted and the reference dynamic range is smaller than a preset difference value threshold value, so as to complete dynamic correction on the master sound file to be processed;
the dynamic stylization process includes the steps of:
comparing the transient to be adjusted of the to-be-processed master tape sound file with a reference transient in the dynamic adjustment reference data;
when the transient to be regulated is weaker than the reference transient, the starting time of the compressor is prolonged, so that the gap between the transient to be regulated and the reference transient is reduced;
when the transient to be adjusted is stronger than the reference transient, the starting time of the compressor is shortened to reduce the gap between the transient to be adjusted and the reference transient.
6. The method of processing a mother-ribbon sound according to claim 1, wherein performing sound field adjustment on the mother-ribbon sound file to be processed based on the sound field adjustment reference data comprises the steps of:
Converting the to-be-processed master sound file into an M-S sound channel file to be adjusted through an LR-MS matrix, and taking the M/S ratio in the M-S sound channel file to be adjusted as the M/S ratio to be adjusted;
comparing the M/S ratio to be adjusted with a reference M/S ratio in the sound field adjustment reference data, and increasing the level of the S channel of the master tape sound file to be processed or reducing the level of the M channel when the M/S ratio to be adjusted is smaller than the reference M/S ratio until the difference between the M/S ratio to be adjusted and the reference M/S ratio is smaller than a preset M/S ratio difference threshold value, so as to complete sound field adjustment of the master tape sound file to be processed;
and/or, the step of loudness adjusting the to-be-processed master vocal files according to the loudness adjustment reference data comprises the following steps:
taking the LUFS as a loudness measurement unit, and acquiring the average loudness in the to-be-processed master sound file as the average loudness to be adjusted;
comparing the average loudness to be adjusted with the reference average loudness in the loudness adjustment reference data;
when the difference value between the average loudness to be adjusted and the reference average loudness is greater than or equal to a preset loudness adjustment difference value, determining the number of limiters according to the difference value and an adjustment difference value threshold value of each limiter, and adjusting the average loudness of the to-be-processed master band sound file by adopting the limiters until the difference value between the average loudness to be adjusted and the reference average loudness is smaller than the preset loudness adjustment difference value, so as to complete the loudness adjustment of the to-be-processed master band sound file.
7. The method of claim 1, wherein the master audio file to be processed comprises one track to be processed or at least two tracks to be processed;
if the to-be-processed master tape sound file comprises at least two to-be-processed tracks, when all to-be-processed tracks in the to-be-processed master tape sound file are subjected to sound processing, obtaining the to-be-processed master tape sound file;
selecting any one track from the sound-processed master tape sound file as a standard track, and other tracks as tracks to be adjusted;
and respectively taking the frequency spectrum and the loudness of the standard track as the standard frequency spectrum and the standard loudness, and respectively adjusting the frequency spectrum and the loudness of the track to be adjusted to be consistent with the standard frequency spectrum and the standard loudness.
8. A master tape sound processing system, the system comprising:
the reference data extraction module is used for extracting frequency data, dynamic range data, sound field data and loudness data of a target reference track of the to-be-processed master tape sound file and respectively used as frequency adjustment reference data, dynamic adjustment reference data, sound field adjustment reference data and loudness adjustment reference data of the to-be-processed master tape sound file;
And the adjustment processing module is used for respectively carrying out frequency adjustment, dynamic adjustment, sound field adjustment and loudness adjustment on the to-be-processed master sound file according to the frequency adjustment reference data, the dynamic adjustment reference data, the sound field adjustment reference data and the loudness adjustment reference data to obtain the master sound file subjected to sound processing.
9. An electronic device, the electronic device comprising:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to the at least one processor; wherein,,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the steps in the master tape sonication method as claimed in any one of claims 1 to 7.
10. A computer readable storage medium storing at least one instruction, wherein the at least one instruction, when executed by a processor in an electronic device, implements a master tape sound processing method according to any one of claims 1 to 7.
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