CN110989968A - Intelligent sound effect processing method, electronic equipment, storage medium and multi-sound effect sound box - Google Patents
Intelligent sound effect processing method, electronic equipment, storage medium and multi-sound effect sound box Download PDFInfo
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- G06F3/16—Sound input; Sound output
- G06F3/167—Audio in a user interface, e.g. using voice commands for navigating, audio feedback
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- H—ELECTRICITY
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- H04R3/00—Circuits for transducers, loudspeakers or microphones
Abstract
The invention discloses an intelligent sound effect processing method, which relates to the technical field of intelligent sound boxes and comprises the following steps: receiving user voice, and determining a voice command according to the user voice; obtaining the audio type of the audio information to be played according to the voice command; loading a corresponding sound effect plug-in according to the audio type, wherein the sound effect plug-in is loaded with a corresponding EQ parameter file; playing audio information according to the voice command, wherein the audio information is processed by a sound effect plug-in and then played; receiving the played audio and acquiring the frequency spectrum parameters of the played audio; comparing the frequency spectrum parameters with preset EQ curves corresponding to the audio types; and if the frequency spectrum parameters do not meet the EQ curve, adjusting the EQ parameter file until the frequency spectrum parameters meet the EQ curve. The embodiment of the invention also discloses the electronic equipment, the storage medium and the multi-sound-effect sound box. The embodiment of the invention can realize dynamic loading of sound effects of various types of audio.
Description
Technical Field
The embodiment of the invention relates to the technical field of intelligent sound boxes, in particular to an intelligent sound effect processing method, electronic equipment, a storage medium and a multi-sound-effect sound box.
Background
Along with the popularization and development of the intelligent sound box, the demand of a user on the high-quality sound effect of the intelligent sound box is stronger, and the intelligent sound box obviously cannot meet the demand due to the fact that multiple voice scenes such as voice broadcasting, music playing, audio books and the like exist, and different types of audio frequency can be processed by the same set of EQ audio frequency parameters.
The artificially synthesized voice broadcast sound is not soft and hard enough, the music play is not mellow, clear and full enough, the audio book lacks affinity, and the actual effect hardly meets the requirements of users.
Moreover, the structural design of the intelligent sound box is very different, the original audio is processed only by the cloud, the processing is difficult to be carried out on different hardware structures, the efficiency is low, and the design is inconvenient.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide an intelligent sound effect processing method, electronic equipment, a storage medium and a multi-sound-effect sound box, which can realize dynamic loading of sound effects of various types of audio.
In a first aspect, an embodiment of the present invention provides an intelligent sound effect processing method, which includes the following steps:
receiving user voice, and determining a voice command according to the user voice; obtaining the audio type of the audio information to be played according to the voice command;
loading a corresponding sound effect plug-in according to the audio type, wherein the sound effect plug-in is loaded with a corresponding EQ parameter file;
playing audio information according to a voice command, wherein the audio information is processed by the sound effect plug-in unit and then played;
receiving the played audio and acquiring the frequency spectrum parameters of the played audio; comparing the frequency spectrum parameters with a preset EQ curve corresponding to the audio type;
and if the frequency spectrum parameter does not meet the EQ curve, adjusting the EQ parameter file until the frequency spectrum parameter meets the EQ curve.
In a preferred embodiment, the voice command is determined according to the user voice, and the audio type of the audio information to be played is obtained according to the voice command; the method comprises the following steps:
sending the user voice to a cloud server for voice recognition, acquiring a voice recognition result, and distinguishing voice commands according to the voice recognition result;
and searching a corresponding audio type in the audio type set according to the keywords of the voice command to obtain the audio type of the audio information to be played.
In a preferred embodiment, the sound effect plug-in is an ALSA sound effect plug-in.
In a preferred embodiment, receiving the played audio and obtaining the spectral parameters of the played audio includes:
and receiving the played audio, converting the played audio into digital audio, and analyzing the digital audio to obtain the frequency spectrum parameters of the digital audio.
In a second aspect, an embodiment of the present invention provides an electronic device, which includes a processor, a storage medium, and a computer program, where the computer program is stored in the storage medium, and is characterized in that when executed by the processor, the computer program implements the intelligent sound effect processing method according to the first aspect.
In a third aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor, and is characterized in that the intelligent sound effect processing method according to the first aspect is described above.
In a fourth aspect, an embodiment of the present invention provides a multi-sound effect sound box, which includes:
the microphone array is used for picking up user voice and audio played by the loudspeaker;
the storage is used for storing the audio type set, the sound effect plug-in corresponding to each audio type, the EQ parameter file corresponding to each sound effect plug-in and the EQ curve corresponding to each audio type;
the main controller is used for receiving user voice picked up by the microphone array and determining a voice command according to the user voice; obtaining the audio type of the audio information to be played according to the voice command; loading a corresponding sound effect plug-in according to the audio type, wherein the sound effect plug-in is loaded with a corresponding EQ parameter file;
the loudspeaker is used for playing audio information according to a voice command, and the audio information is processed by the sound effect plug-in unit and then played by the loudspeaker;
the main controller also receives the audio played by the loudspeaker and picked up by the microphone array, and obtains the frequency spectrum parameter of the audio played by the loudspeaker; comparing the frequency spectrum parameters with a preset EQ curve corresponding to the audio type; and if the frequency spectrum parameter does not meet the EQ curve, adjusting the EQ parameter file until the frequency spectrum parameter meets the EQ curve.
In a preferred embodiment, the multi-sound-effect sound box further comprises a wireless network, the main controller is connected with a cloud server through the wireless network, the main controller sends the user voice to the cloud server for voice recognition, a voice recognition result is obtained, and voice commands are distinguished according to the voice recognition result; and searching a corresponding audio type in the audio type set according to the keywords of the voice command to obtain the audio type of the audio information to be played.
In a preferred embodiment, the sound effect plug-in is an ALSA sound effect plug-in.
In a preferred embodiment, the main controller converts the audio played by the speaker into digital audio, and analyzes the digital audio to obtain the spectral parameters of the digital audio.
Compared with the prior art, the embodiment of the invention has the advantages that the audio information to be played is processed by the sound effect plug-in and then played, the frequency spectrum parameter of the played audio is compared with the EQ curve, the parameter file of the sound effect plug-in is dynamically adjusted, the self-adaption and self-learning effects are achieved, and the dynamic loading of the sound effect of the multi-type audio can be realized.
Drawings
FIG. 1 is a flow chart of an intelligent sound effect processing method according to embodiment 1;
fig. 2 is a functional block diagram of an electronic apparatus of embodiment 2;
fig. 3 is a schematic block diagram of the multi-sound effect speaker of embodiment 4.
Detailed description of the preferred embodiments
The embodiments of the present invention are further described below with reference to the drawings and the specific embodiments, and it should be noted that, in the premise of no conflict, any combination between the embodiments or technical features described below may form a new embodiment. Except as specifically noted, the materials and equipment used in this example are commercially available.
Example 1:
the embodiment 1 of the invention shows an intelligent sound effect processing method. Referring to fig. 1, the method mainly includes the following steps:
s110, receiving user voice, and determining a voice command according to the user voice; obtaining the audio type of the audio information to be played according to the voice command;
the user voice is a voice command sent by the user, and the voice command sent by the user can be collected through the microphone array and then received by the processor (namely, the main controller).
The main controller sends the user voice to a cloud server for voice recognition to obtain a voice recognition result, wherein the voice recognition result is in a character form, different voice commands are distinguished according to keywords of the voice recognition result, namely the different voice commands have different keywords, and the keywords according to the voice recognition result are also the keywords of the voice commands; and the main controller searches the corresponding audio type in the audio type set according to the keywords of the voice command to obtain the audio type of the audio information to be played. The audio type can be playing music, weather forecast, audio books, etc.
And S120, loading a corresponding sound effect plug-in according to the audio type, wherein the sound effect plug-in is loaded with a corresponding EQ parameter file.
In order to realize that different audio types have different sound effects and achieve the purpose of high-quality audio playing, corresponding audio plug-ins are set for each different audio type, and in a linux system, the audio plug-ins can be ALSA sound effect plug-ins. Each sound effect plug-in unit corresponds to a different EQ parameter file. The sound effect plug-in, the EQ parameter file, the audio type set and the EQ curve can be stored in the memory, and meanwhile, an association table of the relation among the sound effect plug-in, the EQ parameter file, the audio type of the audio type set and the EQ curve is also set.
S130, playing audio information according to the voice command, wherein the audio information is played after being processed by the sound effect plug-in.
Playing audio information according to voice commands is widely used in existing intelligent audio boxes, and certainly, similar to other audio playing devices, which will be described only briefly here: the main controller analyzes the voice command, selects related keywords in the voice command, selects corresponding audio information which accords with the related keywords from a memory of the intelligent sound box or from the cloud server, and plays the audio information by the loudspeaker.
In the preferred embodiment of the present invention, before audio playing, the audio channel sequence is adjusted, that is, the audio information is processed by the audio plug-in and then played, so that the playing effect meeting the quality requirement can be obtained after the audio plug-in is processed, and of course, if the playing effect is still not satisfactory, the automatic adjustment is performed according to S140 and S150.
S140, receiving the played audio and acquiring the frequency spectrum parameter of the played audio; and comparing the frequency spectrum parameters with a preset EQ curve corresponding to the audio type.
The method comprises the steps of picking up audio played by a loudspeaker, wherein the audio played by the loudspeaker is called initial audio, digitally processing the initial audio, converting the initial audio into digital audio, and analyzing the digital audio to obtain spectral parameters of the digital audio. The method for obtaining the spectrum parameters by analyzing the digital audio can be realized by the conventional software, and can also be realized by the main controller through the conventional algorithm, which is not described herein again.
S150, if the frequency spectrum parameter does not meet the EQ curve, adjusting the EQ parameter file until the frequency spectrum parameter meets the EQ curve.
The EQ curve is a curve in which each preset audio type achieves high-quality sound, for example, the EQ curve makes a voice broadcast sound more soft and beautiful, music play more mellow, clear and full, and the affinity of an audio book is increased. The EQ curve can be completed through a plurality of times of test modes, and the EQ curve obtained by analyzing the audio of the existing high-quality sound effect with different audio types can be used as a preset EQ curve.
The EQ parameter file of the sound effect plug-in may be dynamically adjusted in a manner that a preset rule increases or decreases a numerical value, or training is performed by creating a neural network model, where a training result is a corresponding EQ curve, and when the EQ parameter file needs to be adjusted, the EQ parameter file may be adjusted according to the corresponding EQ curve and a back propagation manner of the neural network model. Of course, if the spectral parameters satisfy the EQ curve, then processing of the EQ parameters is not being performed.
The audio information to be played is processed by the sound effect plug-in unit and then played, and then the frequency spectrum parameter of the played audio is compared with the EQ curve, so that the parameter file of the sound effect plug-in unit is dynamically adjusted, the self-adaption and self-learning effects are achieved, and the dynamic loading of the sound effect of various types of audio can be realized.
Example 2:
fig. 2 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention, as shown in fig. 2, the electronic device includes a processor 210, a memory 220, an input device 230, and an output device 240; the number of processors 210 in the computer device may be one or more, and one processor 210 is taken as an example in fig. 2; the processor 210, the memory 220, the input device 230, and the output device 240 in the electronic apparatus may be connected by a bus or other means, and the bus connection is taken as an example in fig. 2.
The electronic device can be any product with audio requirements, such as a smart speaker, etc.
The memory 220 is a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the intelligent sound effect processing method in the embodiment of the present invention. The processor 210 executes various functional applications and data processing of the electronic device by running software programs, instructions and modules stored in the memory 220, that is, implements the smart sound effect processing method of the above-described embodiment.
The memory 220 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 220 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 220 may further include memory located remotely from the processor 210, which may be connected to the electronic device through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 230 can be used for inputting audio types, sound effect plug-ins, EQ parameter files, data interfaces of EQ curves, microphone arrays, and the like. The output device 240 may include a speaker or the like.
Example 3:
embodiment 3 of the present invention also provides a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform an intelligent sound effect processing method, including:
receiving user voice, and determining a voice command according to the user voice; obtaining the audio type of the audio information to be played according to the voice command;
loading a corresponding sound effect plug-in according to the audio type, wherein the sound effect plug-in is loaded with a corresponding EQ parameter file;
playing audio information according to a voice command, wherein the audio information is processed by the sound effect plug-in unit and then played;
receiving the played audio and acquiring the frequency spectrum parameters of the played audio; comparing the frequency spectrum parameters with a preset EQ curve corresponding to the audio type;
and if the frequency spectrum parameter does not meet the EQ curve, adjusting the EQ parameter file until the frequency spectrum parameter meets the EQ curve.
Example 4:
referring to fig. 3, embodiment 4 discloses a multi-sound effect sound box, which includes:
a microphone array 310 for picking up user voice and audio played by a speaker;
the memory 320 is used for storing the audio type set, the sound effect plug-in corresponding to each audio type, the EQ parameter file corresponding to each sound effect plug-in, and the EQ curve corresponding to each audio type;
the main controller 330 is configured to receive a user voice picked up by the microphone array, and determine a voice command according to the user voice; obtaining the audio type of the audio information to be played according to the voice command; loading a corresponding sound effect plug-in according to the audio type, wherein the sound effect plug-in is loaded with a corresponding EQ parameter file;
the loudspeaker 340 is used for playing audio information according to a voice command, and the audio information is processed by the sound effect plug-in unit and then played by the loudspeaker;
the main controller also receives the audio played by the loudspeaker and picked up by the microphone array, and obtains the frequency spectrum parameter of the audio played by the loudspeaker; comparing the frequency spectrum parameters with a preset EQ curve corresponding to the audio type; and if the frequency spectrum parameter does not meet the EQ curve, adjusting the EQ parameter file until the frequency spectrum parameter meets the EQ curve.
Further, the multi-sound effect sound box further comprises a wireless network 350, wherein the wireless network can be a radio frequency network and also can be bluetooth, WIFI, 4G, 5G, GPS and the like. The main controller is connected with a cloud server 360 through a wireless network, and sends the user voice to the cloud server for voice recognition to obtain a voice recognition result, and distinguishes voice commands according to the voice recognition result; and searching a corresponding audio type in the audio type set according to the keywords of the voice command to obtain the audio type of the audio information to be played.
Further, the sound effect plug-in is an ALSA sound effect plug-in.
Further, the main controller converts the audio played by the loudspeaker into digital audio, and analyzes the digital audio to obtain the frequency spectrum parameters of the digital audio.
Compared with the prior art, the embodiment of the invention has the advantages that the audio information to be played is processed by the sound effect plug-in and then played, the frequency spectrum parameter of the played audio is compared with the EQ curve, the parameter file of the sound effect plug-in is dynamically adjusted, the self-adaption and self-learning effects are achieved, and the dynamic loading of the sound effect of the multi-type audio can be realized.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-only memory (ROM), a Random Access Memory (RAM), a FLASH memory (FLASH), a hard disk or an optical disk of a computer, and includes instructions for enabling an electronic device (which may be a mobile phone, a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
The above embodiments are only preferred embodiments of the present invention, and the scope of the embodiments of the present invention should not be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the embodiments of the present invention are within the scope of the claims of the embodiments of the present invention.
Claims (10)
1. An intelligent sound effect processing method is characterized by comprising the following steps:
receiving user voice, and determining a voice command according to the user voice; obtaining the audio type of the audio information to be played according to the voice command;
loading a corresponding sound effect plug-in according to the audio type, wherein the sound effect plug-in is loaded with a corresponding EQ parameter file;
playing audio information according to a voice command, wherein the audio information is processed by the sound effect plug-in unit and then played;
receiving the played audio and acquiring the frequency spectrum parameters of the played audio; comparing the frequency spectrum parameters with a preset EQ curve corresponding to the audio type;
and if the frequency spectrum parameter does not meet the EQ curve, adjusting the EQ parameter file until the frequency spectrum parameter meets the EQ curve.
2. The intelligent sound effect processing method according to claim 1, wherein the voice command is determined according to the user voice, and the audio type of the audio information to be played is obtained according to the voice command; the method comprises the following steps:
sending the user voice to a cloud server for voice recognition, acquiring a voice recognition result, and distinguishing voice commands according to the voice recognition result;
and searching a corresponding audio type in the audio type set according to the keywords of the voice command to obtain the audio type of the audio information to be played.
3. The intelligent sound effect processing method according to claim 1 or 2, wherein the sound effect plug-in is an ALSA sound effect plug-in.
4. The intelligent sound effect processing method according to claim 1 or 2, wherein receiving the played audio and obtaining the spectral parameters of the played audio comprises:
and receiving the played audio, converting the played audio into digital audio, and analyzing the digital audio to obtain the frequency spectrum parameters of the digital audio.
5. An electronic device comprising a processor, a storage medium, and a computer program, the computer program being stored in the storage medium, wherein the computer program, when executed by the processor, implements the smart sound effect processing method of any of claims 1-4.
6. A computer-readable storage medium on which a computer program is stored, wherein the computer program is characterized by the smart sound effect processing method of any one of claims 1-4 when executed by a processor.
7. A multi-sound effect sound box, characterized in that it includes:
the microphone array is used for picking up user voice and audio played by the loudspeaker;
the storage is used for storing the audio type set, the sound effect plug-in corresponding to each audio type, the EQ parameter file corresponding to each sound effect plug-in and the EQ curve corresponding to each audio type;
the main controller is used for receiving user voice picked up by the microphone array and determining a voice command according to the user voice; obtaining the audio type of the audio information to be played according to the voice command; loading a corresponding sound effect plug-in according to the audio type, wherein the sound effect plug-in is loaded with a corresponding EQ parameter file;
the loudspeaker is used for playing audio information according to a voice command, and the audio information is processed by the sound effect plug-in unit and then played by the loudspeaker;
the main controller also receives the audio played by the loudspeaker and picked up by the microphone array, and obtains the frequency spectrum parameter of the audio played by the loudspeaker; comparing the frequency spectrum parameters with a preset EQ curve corresponding to the audio type; and if the frequency spectrum parameter does not meet the EQ curve, adjusting the EQ parameter file until the frequency spectrum parameter meets the EQ curve.
8. The multi-sound effect loudspeaker of claim 7 further comprising a wireless network, wherein the main controller is connected to a cloud server via the wireless network, the main controller sends the user speech to the cloud server for speech recognition, obtains a speech recognition result, and distinguishes a speech command according to the speech recognition result; and searching a corresponding audio type in the audio type set according to the keywords of the voice command to obtain the audio type of the audio information to be played.
9. The multi-sound effect enclosure of claim 7 or 8 wherein the sound effect insert is an ALSA sound effect insert.
10. The multi-sound effect speaker of claim 7 or 8, wherein the main controller converts audio played by the speakers into digital audio and analyzes the digital audio to obtain spectral parameters of the digital audio.
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