CN113050916A - Audio playing method, device and storage medium - Google Patents
Audio playing method, device and storage medium Download PDFInfo
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
Abstract
The embodiment of the application relates to an audio playing method, an audio playing device and a storage medium, wherein the method is applied to first equipment, the first equipment comprises M audio channels, M is an integer greater than 1, and the method comprises the following steps: the method comprises the steps that a first device obtains at least two pieces of original audio data, wherein the at least two pieces of original audio data belong to screen projection data sent by at least two pieces of second devices respectively; the method comprises the steps that first equipment generates target audio data according to at least two pieces of original audio data, the target audio data comprise audio data of at least one sound channel of each piece of original audio data in the at least two pieces of original audio data, and the number of the sound channels corresponding to the target audio data is a natural number smaller than or equal to M; the first device plays the target audio data through the M audio channels. Therefore, under the scene of double-path screen projection or multi-path screen projection, the screen projection display equipment can simultaneously play audio data in screen projection data sent by the two-path or multi-path screen projection sending end equipment, and the user requirements are met.
Description
Technical Field
The embodiment of the application relates to the technical field of multimedia, in particular to an audio playing method, an audio playing device and a storage medium.
Background
The screen projection refers to that screen images (hereinafter referred to as screen projection data) on one device are mirrored on another device to be played, and the screen projection data on devices with smaller display screens, such as smart phones and tablet computers, are mirrored on devices with larger display screens, such as conference whiteboards and advertising screens (hereinafter referred to as screen projection display devices) to be played in a common scene, so that the visual experience of users or the interaction requirements among a plurality of users are met.
With the continuous development of electronic technology, some screen projection protocols support the simultaneous mirroring of screen projection data on two or even more devices onto the same device, i.e., support the dual-path screen projection or the multi-path screen projection. At present, in a scene of double-path screen projection or multi-path screen projection, a screen projection display device processes audio data in two-path or multi-path screen projection data in a mode that: and carrying out mute processing on the audio data in each path of screen projection data, or only playing the audio data in one path of screen projection data.
Therefore, in the prior art, under a scene of two-path screen projection or multi-path screen projection, the screen projection display device cannot simultaneously play audio data in the two-path or multi-path screen projection data, and thus the requirement that a user can listen to the audio data in the multi-path screen projection data simultaneously through the same screen projection display device cannot be met.
Disclosure of Invention
In order to solve the above technical problem or at least partially solve the above technical problem, embodiments of the present application provide an audio playing method, an apparatus and a storage medium.
In a first aspect, an embodiment of the present application provides an audio playing method, where the method is applied to a first device, where the first device includes M audio channels, where M is an integer greater than 1, and the method includes:
the first equipment acquires at least two pieces of original audio data, wherein the at least two pieces of original audio data belong to screen projection data sent by at least two pieces of second equipment respectively;
the first device generates target audio data according to the at least two pieces of original audio data, wherein the target audio data comprise audio data of at least one sound channel of each piece of original audio data in the at least two pieces of original audio data, and the number of sound channels corresponding to the target audio data is a natural number smaller than or equal to M;
and the first equipment plays the target audio data through the M audio channels.
Optionally, the generating, by the first device, target audio data from the at least two pieces of original audio data includes:
the first device performs channel separation on each original audio data to obtain audio data of multiple channels corresponding to each original audio data;
the first device determines target channel audio data corresponding to each piece of original audio data, wherein the target channel audio data corresponding to each piece of original audio data comprises audio data of at least one channel corresponding to the original audio data;
and the first equipment synthesizes target channel audio data corresponding to each piece of original audio data in the at least two pieces of original audio data to obtain the target audio data.
Optionally, when the number of the at least two second devices is equal to M, the target channel audio data corresponding to each original audio data includes audio data of one channel corresponding to the original audio data.
Optionally, the channels corresponding to the target channel audio data corresponding to each piece of original audio data are different.
Optionally, the synthesizing, by the first device, target channel audio data corresponding to each of the at least two pieces of original audio data to obtain the target audio data includes:
and the first device synthesizes the target channel audio data corresponding to each original audio data in the at least two original audio data according to a preset channel sequence and the channel corresponding to each target channel audio data to obtain the target audio data.
Optionally, before the first device acquires at least two pieces of original audio data, the method further includes:
the first equipment receives screen projection data sent by a plurality of third equipment;
the first device determining the at least two second devices from the plurality of third devices;
correspondingly, the first device acquires at least two original audio data, including:
and the first equipment analyzes the screen projection data sent by the at least two second equipments to obtain the at least two original audio data.
Optionally, the determining, by the first device, the at least two second devices from the plurality of third devices includes:
the first device determining a priority order of each of the plurality of third devices;
the first device determines the at least two second devices from the plurality of third devices according to the priority order, and the priorities of the at least two second devices meet a preset condition.
Optionally, the method further comprises:
the first device receives an adjustment instruction;
and the first equipment adjusts the volume of the M audio channels according to the adjusting instruction.
In a second aspect, an embodiment of the present application provides an audio playing apparatus, where the apparatus is applied to a first device, where the first device includes M audio channels, where M is an integer greater than 1, and the apparatus includes:
the data acquisition module is used for acquiring at least two pieces of original audio data, and the at least two pieces of original audio data respectively belong to screen projection data sent by at least two pieces of second equipment;
the data generating module is used for generating target audio data according to the at least two original audio data acquired by the data acquiring module, wherein the target audio data comprises audio data of at least one sound channel of each original audio data in the at least two original audio data, and the number of the sound channels corresponding to the target audio data is a natural number less than or equal to M;
and the data playing module is used for playing the target audio data generated by the data generating module through the M audio channels.
Optionally, the data generating module includes:
the separation submodule is used for carrying out sound channel separation on each original audio data to obtain audio data of a plurality of sound channels corresponding to each original audio data;
the target determining submodule is used for determining target channel audio data corresponding to each piece of original audio data, wherein the target channel audio data corresponding to each piece of original audio data comprises audio data of at least one channel corresponding to the original audio data;
and the synthesis submodule is used for synthesizing the target channel audio data corresponding to each of the at least two original audio data to obtain the target audio data.
Optionally, when the number of the at least two second devices is equal to M, the target channel audio data corresponding to each original audio data includes audio data of one channel corresponding to the original audio data.
Optionally, the channels corresponding to the target channel audio data corresponding to each piece of original audio data are different.
Optionally, the synthesis submodule is specifically configured to:
and synthesizing the target channel audio data corresponding to each original audio data in the at least two original audio data according to a preset channel sequence and the channel corresponding to each target channel audio data to obtain the target audio data.
Optionally, the apparatus further comprises:
the data receiving module is used for receiving screen projection data sent by a plurality of third devices;
a device determination module to determine the at least two second devices from the plurality of third devices;
correspondingly, the data acquisition module is specifically configured to:
and analyzing the screen projection data sent by the at least two second devices to acquire the at least two original audio data.
Optionally, the device determination module is specifically configured to:
determining a priority order of each of the plurality of third devices; and determining the at least two second devices from the plurality of third devices according to the priority order, wherein the priorities of the at least two second devices meet a preset condition.
Optionally, the apparatus further comprises:
the instruction receiving module is used for receiving an adjusting instruction;
and the volume adjusting module is used for adjusting the volumes of the M audio channels according to the adjusting instruction.
In a third aspect, an embodiment of the present application provides an electronic device, including a processor, a communication interface, a memory, and a communication bus, where the processor and the communication interface complete communication between the memory and the processor through the communication bus;
a memory for storing a computer program;
a processor, configured to implement the steps of the audio playing method according to any one of the first aspect when executing the program stored in the memory.
In a fourth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of the audio playing method according to any one of the first aspect.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
in the technical solution provided in this application embodiment, the first device generates the target audio data according to the at least two pieces of original audio data in the screen projection data sent by the at least two pieces of second device, because the target audio data includes audio data of at least one channel of each piece of original audio data in the at least two pieces of original audio data, and the number of channels corresponding to the target audio data is a natural number less than or equal to M, and the first device plays the audio data of one channel in the target audio data in each audio channel when playing the target audio data through M audio channels, this application embodiment can achieve that the first device can simultaneously play the audio data in the screen projection data sent by the at least two pieces of second device, that is, it can achieve that the screen projection display device can simultaneously play the audio data in the screen projection data sent by the two-way or multi-way screen projection sending end device in a two-way or multi-way screen projection scene Accordingly, the user requirements are met.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic view of an application scenario of an audio playing method according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a display interface on a first device during two-way screen projection on the first device;
fig. 3 is a schematic flowchart of an audio playing method according to an embodiment of the present application;
fig. 4 is a schematic flowchart of another audio playing method according to an embodiment of the present application;
FIG. 5 is a diagram of an embodiment of a first device determining at least two second devices from a plurality of third devices in an embodiment of the present application;
FIG. 6 is a schematic diagram of a two-channel sequence defined by a PCM audio file format;
FIG. 7 is a schematic diagram of a display interface of the first device when adjusting the volume of the dual audio channels of the first device;
fig. 8 is a schematic diagram of an audio playing apparatus according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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 some 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.
For convenience of understanding, an application scenario of an audio playing method provided by an embodiment of the present application is first described below:
referring to fig. 1, a schematic view of an application scenario of an audio playing method provided in an embodiment of the present application is shown.
As shown in fig. 1, the application scenario of the audio playing method includes: a screen projection display device 101 and a plurality of screen projection sending terminal devices 102. In fig. 1, only 3 screen-casting sending-end devices are taken as an example. The screen projection display device in the embodiment of the present application is any electronic device capable of processing and displaying screen projection data, for example, it may be an intelligent television, a conference whiteboard, an advertisement screen, etc., and fig. 1 only takes an intelligent television as an example; the screen projection sending end device in the embodiment of the present application is any electronic device that can send screen projection data, for example, a smart phone, a notebook computer, a wearable device, and the like, and fig. 1 only takes the smart phone as an example.
In the application scenario shown in fig. 1, both the screen-projecting display device 101 and the screen-projecting sending end 102 support a screen-projecting protocol, such as Miracast protocol, Airplay protocol, DLNA (Digital Living Network Alliance) protocol, and the like. Taking the Miracast protocol as an example, the former name of Miracast is Wi-Fi Display, which is an industry standard established by the Wi-Fi alliance and widely supported. Miracast mirrors the projected screen data on one device to another device nearby through Wi-Fi. Based on this technology, in the application scenario shown in fig. 1, a user may mirror the screen projection data on the screen projection transmitting end device to the screen projection display device.
Further, some screen projection protocols, such as Miracast protocol, also support that screen projection data on two devices are mirrored onto the same nearby device at the same time, which is called dual-way screen projection for short, and based on this, in the application scenario shown in fig. 1, a user can mirror screen projection data on any two screen projection sending end devices onto a screen projection display device at the same time. It should be noted that, in practical applications, some screen projection protocols may also support simultaneously mirroring screen projection data on multiple devices to the same nearby device, which is called multi-way screen projection for short, and the embodiment of the present application does not limit the specific screen projection ways.
In the application scenario shown in fig. 1, when the screen projection data on two or more screen projection sending end devices are simultaneously mirrored onto the screen projection display device, the screen projection display device may display two or more screen projection pictures in a split screen manner. Referring to fig. 2, a schematic diagram of a display interface on the screen projection display device when performing two-way screen projection on the screen projection display device is shown.
In the prior art, the projection screen display device processes the audio data in two or more paths of projection screen data in the following way: and carrying out mute processing on the audio data in each path of screen projection data, or only playing the audio data in one path of screen projection data.
Therefore, in the prior art, under a scene of double-path screen projection or multi-path screen projection, the screen projection display device cannot simultaneously play the audio data in the two-path or multi-path screen projection data, and thus the requirement that a user can listen to the audio data in the multi-path screen projection data simultaneously through the same screen projection display device cannot be met.
Based on this, the embodiment of the application provides an audio playing method, so that in a scene of double-path screen projection or multi-path screen projection, the screen projection display device can simultaneously play audio data in screen projection data sent by two-path or multi-path screen projection sending terminal devices, and user requirements are met.
Referring to fig. 3, a schematic flowchart of an audio playing method provided in an embodiment of the present application is shown. As an embodiment, the method may be applied to a first device, that is, a screen projection display device in the application scenario shown in fig. 1, as shown in fig. 3, and includes the following steps:
In an embodiment of the application, the first device comprises M audio channels, M being an integer larger than 1, in other words, the first device comprises at least two audio channels. In this embodiment of the present application, when M is 2, the first device supports playing a two-channel audio file, when M is 4, the second device supports playing a four-channel audio file, and may also support playing an audio file lower than four channels, and when M is 7, the second device supports playing a seven-channel audio file, and may also support playing an audio file lower than seven channels, which is not limited in this embodiment of the present application.
In this embodiment of the present application, the second device is the screen projection sending end device that sends screen projection data to the screen projection display device in fig. 1. In this embodiment of the present application, the screen projection data sent by the second device to the first device includes video data and original audio data, and based on this, in this embodiment of the present application, the first device analyzes the screen projection data sent by the at least two second devices to obtain the at least two original audio data. Here, the original audio data is multi-channel audio data including audio data of at least two channels. Taking two channels as an example, the original audio data may include audio data of a left channel and audio data of a right channel; taking four channels as an example, the original audio data may include audio data of a front left channel, audio data of a rear left channel, audio data of a front right channel, and audio data of a rear right channel. The at least two channels may also be six channels, seven channels, eleven channels, etc., which are not illustrated in this application. It should be noted that, in this embodiment of the present application, the number of channels corresponding to original audio data in screen projection data sent to the first device by different second devices may be different, and this is not limited in this embodiment of the present application. For example, the original audio data in the screen projection data sent by one of the second devices to the first device is two-channel audio data, and the original audio data in the screen projection data sent by the other second device to the first device is four-channel audio data.
In the embodiment of the application, after the first device acquires the at least two pieces of original audio data, the target audio data is generated according to the at least two pieces of original audio data. In the embodiment of the application, the original audio data are multi-channel audio data, and the target audio data comprise audio data of at least one channel in each original audio data. In this embodiment of the application, the number of channels corresponding to the target audio data is a natural number less than or equal to M, and the number of channels corresponding to the target audio data is greater than or equal to the number of the at least two second devices.
As can be seen from the descriptions in steps 302 and 303, in this embodiment of the application, the audio data finally played by the first device is not any one of the obtained multiple original audio data, but is target audio data obtained based on different original audio data, and further, the target audio data includes audio data of at least one channel of each of at least two original audio data, so that when the first device plays the target audio data through M audio channels, the first device can respectively play audio data in screen projection data sent by two or more second devices through M audio channels.
For example, assuming that the number of audio channels included in the first device is 2 and assuming that the number of the second devices is also 2, the first device may play, through the audio channel corresponding to the left channel, the audio data of the left channel in the original audio data in the screen projection data sent by one of the second devices, and simultaneously play, through the audio channel corresponding to the right channel, the audio data of the right channel in the original audio data in the screen projection data sent by the other second device; or the first device may play, through the audio channel corresponding to the left channel, audio data of the right channel in the original audio data in the screen projection data sent by one second device, and simultaneously play, through the audio channel corresponding to the right channel, audio data of the right channel in the original audio data in the screen projection data sent by another second device; or, the first device may play, through the audio channel corresponding to the left channel, the audio data of the left channel in the original audio data in the screen projection data sent by one second device, and simultaneously play, through the audio channel corresponding to the right channel, the audio data of the left channel in the original audio data in the screen projection data sent by another second device, and so on. Therefore, by applying the technical scheme provided by the embodiment of the application, the screen projection display device can simultaneously play the original audio data in the screen projection data sent by the two-way or multi-way screen projection sending terminal device under the scene of two-way screen projection or multi-way screen projection, and the user requirements are met.
In the technical solution provided in this application embodiment, the first device generates the target audio data according to the at least two pieces of original audio data in the screen projection data sent by the at least two pieces of second device, because the target audio data includes audio data of at least one channel of each piece of original audio data in the at least two pieces of original audio data, and the number of channels corresponding to the target audio data is a natural number less than or equal to M, and the first device plays the audio data of one channel in the target audio data in each audio channel when playing the target audio data through M audio channels, this application embodiment can achieve that the first device can simultaneously play the audio data in the screen projection data sent by the at least two pieces of second device, that is, it can achieve that the screen projection display device can simultaneously play the audio data in the screen projection data sent by the two-way or multi-way screen projection sending end device in a two-way or multi-way screen projection scene Accordingly, the user requirements are met.
Based on the audio playing method in the embodiment of fig. 3, the first device includes M audio channels, and the number of the screen projection sending end devices that send screen projection data to the first device in the same time period may be greater than M, that is, the first device receives screen projection data sent by N third devices in the same time period, where N is greater than M, at this time, the M audio channels of the first device can only play at most original audio data in the screen projection data sent by M screen projection sending end devices. For example, assuming that 3 third devices simultaneously transmit the screen projection data to the first device, and the first device includes 2 audio channels, the first device can only play the original audio data corresponding to 2 of the third devices at most simultaneously. In view of this situation, an embodiment of the present application provides a flowchart of another audio playing method, as shown in fig. 4.
Fig. 4 shows another audio playing method, which includes the contents of steps 401 to 405.
In this embodiment of the present application, the third device is the screen-casting sending end device that sends screen-casting data to the first device in fig. 1. In the embodiment of the application, the first device receives screen projection data sent by a plurality of third devices. In the embodiment of the present application, the number of the plurality of third devices is N, where N is a natural number greater than 1.
In this embodiment of the application, after the first device receives the screen projection data sent by the plurality of third devices, at least two second devices may be determined from the plurality of third devices according to the number M of audio channels included in the device and the number N of the plurality of third devices.
Specifically, when the first device receives screen projection data sent by a plurality of third devices, comparing M with N, and if M is greater than or equal to N, it means that each third device can play original audio data in the screen projection data sent by the third device to the first device corresponding to at least one audio channel, so that the first device can determine each of the plurality of third devices as the second device; if M is smaller than N, it means that at most M third devices can only play the original audio data in the screen projection data sent by the third device to the first device corresponding to one audio channel, and therefore the first device can determine M of the plurality of third devices as second devices, that is, the first device can determine at least two second devices from the plurality of third devices.
Optionally, in this embodiment of the application, the method for determining, by the first device, the at least two second devices from the plurality of third devices may adopt a method as shown in fig. 5. Fig. 5 is a schematic diagram of an embodiment in which a first device determines at least two second devices from a plurality of third devices in an embodiment of the present application. The method shown in fig. 5 includes the contents of step 4021-step 4022.
As an embodiment, the first device may determine a priority order of the plurality of third devices according to an access order of the plurality of third devices, where the access order refers to an order in which the third devices access the first device. Preferably, the earlier the third device accesses the first device, the higher its priority, that is, in the case where the priority order is in order from high to low in priority, the priority order of each third device coincides with its access order.
As another example, the priority order of different types and models of devices may be preset, such as setting the priority of the tablet computer to be higher than the priority of the smartphone, the priority of the smartphone with model a to be higher than the priority of the smartphone with model B, and so on, based on which the first device may determine the priority order of the plurality of third devices according to the respective types, models, and so on of the plurality of third devices.
The preset conditions may refer to: the second device ranks M front bits in order of priority from high to low, or ranks M rear bits in order of priority from low to high.
It should be noted that, the determining, by the first device, the priority order of each of the plurality of third devices, and determining, according to the priority order, at least two second devices from the plurality of third devices is only an optional implementation manner, and in an application, the first device may also select, by another manner, for example, a random selection manner, at least two second devices from the plurality of third devices, which is not limited in this embodiment of the application.
In the embodiment of the application, after the first device determines at least two second devices from the plurality of third devices, the screen projection data sent by the at least two second devices are analyzed to obtain at least two original audio data. It should be noted that, the content in step 301 in fig. 3 may be referred to for understanding, and details are not described here.
In an embodiment of the present application, the generating, by the first device, the target audio data according to the at least two pieces of original audio data includes: the method comprises the steps that first equipment carries out sound channel separation on each original audio data to obtain audio data of multiple sound channels corresponding to each original audio data, then the first equipment determines target sound channel audio data corresponding to each original audio data, wherein the target sound channel audio data corresponding to each original audio data comprise audio data of at least one sound channel corresponding to the original audio data, and finally the first equipment synthesizes the target sound channel audio data corresponding to each original audio data in at least two original audio data to obtain the target audio data.
Specifically, the determining, by the first device, target channel audio data corresponding to each original audio data includes: the first device compares the number M of audio channels included in the device with the number Q of at least two second devices, where Q is a natural number greater than 1. If Q is equal to M, it means that each of the second devices can play the original audio data sent by the second device to the first device corresponding to one audio channel, and therefore, when the number Q of the second devices is equal to M, the first device may determine the audio data of one channel in the original audio data corresponding to the second device as the target audio data corresponding to the original audio data, in other words, the target channel audio data corresponding to the original audio data includes the audio data of one channel corresponding to the original audio data.
Optionally, when Q is equal to M, the channels corresponding to the target channel audio data corresponding to each original audio data are different. For example, in a two-way screen projection scene, audio data of a left channel in one path of original audio data is determined as target channel audio data corresponding to the original audio data, and audio data of a right channel in the other path of original audio data is determined as target channel audio data corresponding to the original audio data. It should be noted that, the difference between the channels corresponding to the target channel audio data corresponding to each original audio data is merely a preferable way, and is not a limitation to the embodiment of the present application.
For example, M is 2, Q is 2, and each original audio data is binaural audio data, where the original audio data 1 is { a1, b1}, the original audio data 2 is { a2, b2}, a1 and a2 are left channel audio data, and b1 and b2 are right channel audio data, and then the target audio data is 2-channel audio data including channel audio data on one channel in the original audio data 1, and channel audio data on one channel in the original audio data 2, for example, the target audio data may be any one of { a1, a2}, { a1, b2}, { b1, a2}, and { b1, b2 }.
For example, M-4, Q-4, and each original audio data is four-channel audio data, where the original audio data 1 is { a1, b1, c2, d1}, the original audio data 2 is { a2, b2, c2, d2}, the original audio data 3 is { a3, b3, c3, d3}, the original audio data 4 is { a3, b3, c3, d3}, and the target audio data is 4-channel data including channel audio data on one channel of the original audio data 1, channel audio data on one channel of the original audio data 2, channel audio data on one channel of the original audio data 3, and channel audio data on one channel of the original audio data 4, for example, the target audio data may be { a3, a3, a3, b }, { 3 a3, 3 a3, 3 d },3672, any one of a3, a4}, { b1, a2, a3, a4}, { c1, a2, a3, a4}, { d1, a2, a3, a4}, and the like.
The above are some simple examples, and for other situations with different numbers of original audio data and different numbers of channels, the same principle may also be used to perform synthesis of target audio data, which is not illustrated in this embodiment of the present application.
If Q is less than M, it means that each of the second devices is capable of playing the original audio data sent by the second device to the first device corresponding to at least one audio channel, and therefore, when the number Q of the second devices is less than M, the first device may determine the audio data of at least one channel in the original audio data corresponding to the second device as the target audio data corresponding to the original audio data, in other words, the target channel audio data corresponding to the original audio data includes the audio data of at least one channel corresponding to the original audio data. It is to be noted here that, in the case where Q is less than M, the total number of target channel audio data corresponding to each original audio data is a natural number less than or equal to M, so that the number of channels corresponding to target audio data synthesized from the target channel audio data is a natural number less than or equal to M.
For example, if M is 4 and Q is 2, and each original audio data is two-channel audio data, where the original audio data 1 is { a1, b1}, the original audio data 2 is { a2, b2}, a1 and a2 are left-channel audio data, and b1 and b2 are right-channel audio data, the target audio data may be 2-channel audio data, 3-channel audio data, or 4-channel audio data. When the target audio data is 2-channel audio data including channel audio data on one channel in the original audio data 1 and channel audio data on one channel in the original audio data 2, for example, the target audio data may be any one of { a1, a2}, { a1, b2}, { b1, a2}, and { b1, b2 }. When the target audio data is 3-channel audio data including channel audio data on one channel in the original audio data 1 and channel audio data on 2 channels in the original audio data 2, for example, the target audio data may be any one of { a1, a2, b2}, { b1, a2, b2 }; or includes channel audio data on 2 channels in the original audio data 1 and channel audio data on 1 channel in the original audio data 2, for example, the target audio data may be any one of { a1, b1, b2}, { a1, b1, b2 }. When the target audio data is 4-channel audio data including channel audio data on 2 channels in the original audio data 1 and channel audio data on 2 channels in the original audio data 2, the target audio data may be { a1, b1, a2, b2}, for example.
For example, M is 4, Q is 3, and each original audio data is two-channel audio data, where the original audio data 1 is { a1, b1}, the original audio data 2 is { a2, b2}, the original audio data 3 is { a3, b3}, a1, a2, and a3 are left-channel audio data, and b1, b2, and b3 are right-channel audio data, and the target audio data may be 3-channel audio data or 4-channel audio data. When the target audio data is 3-channel audio data including channel audio data on one channel in the original audio data 1, channel audio data on one channel in the original audio data 2, and channel audio data on one channel in the original audio data 3, for example, the target audio data may be any one of { a1, a2, a3}, { a1, a2, b3}, { a1, b2, b3}, { a1, b2, a3}, { b1, a2, a3}, { b1, b2, b3}, { b1, a2, b3}, { b1, b2, a3}, and the like. When the target audio data is 4-channel audio data including channel audio data on 1 channel in the original audio data 1, channel audio data on 1 channel in the original audio data 2, and channel audio data on 2 channels in the original audio data 3, for example, the target audio data may be any one of { a1, a2, a3, b3}, { a1, b2, a3, b3}, { b1, a2, a3, b3}, { b1, b2, a3, b3}, and the like; or includes channel audio data on 2 channels in the original audio data 1, channel audio data on 1 channel in the original audio data 2, and channel audio data on 1 channel in the original audio data 3, for example, the target audio data may be any one of { a1, b1, a2, a3}, { a1, b1, a2, b3}, { a1, b1, b2, a3}, { a1, b1, b2, b3}, and the like; or channel audio data on 1 channel in the original audio data 1, channel audio data on 2 channels in the original audio data 2, and channel audio data on 1 channel in the original audio data 3, for example, the target audio data may be any one of { a1, a2, b2, a3}, { a1, a2, b2, b3}, { b1, a2, b2, a3}, { b1, a2, b2, b3}, and the like.
The above are some simple examples, and for other situations with different numbers of original audio data and different numbers of channels, the same principle may also be used to perform synthesis of target audio data, which is not illustrated in this embodiment of the present application.
In this embodiment of the application, under the condition that channels corresponding to target channel audio data corresponding to each piece of original audio data are different, synthesizing, by the first device, target channel audio data corresponding to each piece of original audio data in at least two pieces of original audio data to obtain the target audio data includes: the first device synthesizes target channel audio data corresponding to each original audio data in at least two original audio data according to a preset channel sequence and a channel corresponding to each target channel audio data to obtain target audio data. Here, the preset channel order may be, for example, a channel order defined by a PCM audio file format. As shown in fig. 6, a diagram of a two-channel sequence defined for a PCM audio file format.
Based on the PCM audio file format illustrated in fig. 6, for example, as the above specific example, when M is 2 and Q is 2, and each of the original audio data is two-channel audio data, where the original audio data 1 is { a1, b1}, the original audio data 2 is { a2, b2}, a1 and a2 are left-channel audio data, and b1 and b2 are right-channel audio data, the target audio data may be 2-channel audio data, which may be any one of { a1, b2}, { a2, b1 }.
Other contents of the embodiment of the present application can be understood with reference to the contents in step 302 of fig. 3, and are not described herein again.
The embodiment of the present application can be understood with reference to the content in step 303 of fig. 3, and is not described herein again.
In this embodiment of the application, through the flow shown in fig. 4, it is achieved that, when receiving screen projection data sent by N third devices, a first device determines at least two second devices from the N third devices according to the numbers M and N of audio channels of the first device, and then generates target audio data according to the at least two original audio data by obtaining original audio data in the screen projection data sent by the at least two second devices, where the target audio data includes audio data of at least one channel of each of the at least two original audio data, and the number of channels corresponding to the target audio data is a natural number less than or equal to M, and when playing the target audio data through the M audio channels, the first device plays audio data of one channel in the target audio data through each of the audio channels, so that the first device can simultaneously play the screen projection data sent by the at least two second devices The audio data, that is, the screen projection display device can play the audio data in the screen projection data sent by the two-way or multi-way screen projection sending terminal device at the same time in the scene of two-way screen projection or multi-way screen projection, so that the user requirements are met.
In the embodiment of the application, each third device is determined as the second device when the number M of the audio channels of the first device is equal to N, so that the first device can simultaneously play audio data in screen projection data sent by each third device, that is, the screen projection display device can simultaneously play audio data in screen projection data sent by each screen projection sending terminal device in a double-path screen projection or multi-path screen projection scene, thereby meeting the user requirements.
In the embodiment of the application, under the condition that the number M of the audio channels of the first device is less than N, at least two second devices are determined from the multiple third devices according to the priority order of each third device, so that the first device can simultaneously play audio data in screen projection data sent by the at least two third devices, and simultaneously can preferentially select and play audio data corresponding to the third device with a higher priority, thereby further improving user experience while meeting user requirements.
In addition, in the embodiments shown in fig. 3 and fig. 4, in the process that the first device plays the target audio data through the M audio channels, the user may also perform balance adjustment on the playing volumes of different audio channels on the first device according to the actual application scenario. Specifically, in the process of playing the target audio data by the first device, the user may send an adjustment instruction to the first device through an external device (for example, a remote controller), or through a control module (for example, a key, a touch control icon, or the like) on the first device, so that the first device may receive the adjustment instruction and adjust the playing volume of each audio channel according to the adjustment instruction.
As shown in fig. 7, when the volume of the dual audio channels of the first device is adjusted, a balance adjustment icon is displayed on the display interface of the first device, and a user can intuitively determine the volume weight relationship between the audio channels through the balance adjustment icon.
Therefore, by applying the technical scheme provided by the embodiment of the application, the user can flexibly adjust the playing volume of the audio data corresponding to different screen projection sending devices according to actual service requirements, and the user experience is improved.
Fig. 8 is a schematic view of an audio playing apparatus according to an embodiment of the present application. As shown in fig. 8, the audio playback apparatus includes: a data acquisition module 81, a data generation module 82, and a data playback module 83.
The data acquisition module 81 is configured to acquire at least two pieces of original audio data, where the at least two pieces of original audio data belong to screen projection data sent by at least two pieces of second equipment, respectively;
a data generating module 82, configured to generate target audio data according to at least two pieces of original audio data acquired by the data acquiring module 81, where the target audio data includes audio data of at least one channel of each piece of original audio data in the at least two pieces of original audio data, and a number of channels corresponding to the target audio data is a natural number less than or equal to M;
a data playing module 83, configured to play the target audio data generated by the data generating module 82 through the M audio channels.
Optionally, the data generating module 82 includes (not shown in the figure):
the separation submodule is used for carrying out sound channel separation on each original audio data to obtain audio data of a plurality of sound channels corresponding to each original audio data;
the target determining submodule is used for determining target channel audio data corresponding to each piece of original audio data, wherein the target channel audio data corresponding to each piece of original audio data comprises audio data of at least one channel corresponding to the original audio data;
and the synthesis submodule is used for synthesizing the target channel audio data corresponding to each of the at least two original audio data to obtain the target audio data.
Optionally, when the number of the at least two second devices is equal to M, the target channel audio data corresponding to each original audio data includes audio data of one channel corresponding to the original audio data.
Optionally, the channels corresponding to the target channel audio data corresponding to each piece of original audio data are different.
Optionally, the synthesis submodule is specifically configured to:
and synthesizing the target channel audio data corresponding to each original audio data in the at least two original audio data according to a preset channel sequence and the channel corresponding to each target channel audio data to obtain the target audio data.
Optionally, the device further comprises (not shown in the figures):
the data receiving module is used for receiving screen projection data sent by a plurality of third devices;
a device determination module to determine the at least two second devices from the plurality of third devices;
correspondingly, the data obtaining module 81 is specifically configured to:
and analyzing the screen projection data sent by the at least two second devices to acquire the at least two original audio data.
Optionally, the device determination module is specifically configured to:
determining a priority order of each of the plurality of third devices; and determining the at least two second devices from the plurality of third devices according to the priority order, wherein the priorities of the at least two second devices meet a preset condition.
Optionally, the device further comprises (not shown in the figures):
the instruction receiving module is used for receiving an adjusting instruction;
and the volume adjusting module is used for adjusting the volumes of the M audio channels according to the adjusting instruction.
As shown in fig. 9, the embodiment of the present application provides an electronic device, which includes a processor 911, a communication interface 912, a memory 913 and a communication bus 914, wherein the processor 911, the communication interface 912 and the memory 113 are communicated with each other through the communication bus 914,
a memory 913 for storing computer programs;
in an embodiment of the present application, when the processor 911 is configured to execute the program stored in the memory 913, the method for playing back audio provided in any one of the foregoing method embodiments includes:
the first equipment acquires at least two pieces of original audio data, wherein the at least two pieces of original audio data belong to screen projection data sent by at least two pieces of second equipment respectively;
the first device generates target audio data according to the at least two pieces of original audio data, wherein the target audio data comprise audio data of at least one sound channel of each piece of original audio data in the at least two pieces of original audio data, and the number of sound channels corresponding to the target audio data is a natural number smaller than or equal to M;
and the first equipment plays the target audio data through the M audio channels.
Optionally, the generating, by the first device, target audio data from the at least two pieces of original audio data includes:
the first device performs channel separation on each original audio data to obtain audio data of multiple channels corresponding to each original audio data;
the first device determines target channel audio data corresponding to each piece of original audio data, wherein the target channel audio data corresponding to each piece of original audio data comprises audio data of at least one channel corresponding to the original audio data;
and the first equipment synthesizes target channel audio data corresponding to each piece of original audio data in the at least two pieces of original audio data to obtain the target audio data.
Optionally, when the number of the at least two second devices is equal to M, the target channel audio data corresponding to each original audio data includes audio data of one channel corresponding to the original audio data.
Optionally, the channels corresponding to the target channel audio data corresponding to each piece of original audio data are different.
Optionally, the synthesizing, by the first device, target channel audio data corresponding to each of the at least two pieces of original audio data to obtain the target audio data includes:
and the first device synthesizes the target channel audio data corresponding to each original audio data in the at least two original audio data according to a preset channel sequence and the channel corresponding to each target channel audio data to obtain the target audio data.
Optionally, before the first device acquires at least two pieces of original audio data, the method further includes:
the first equipment receives screen projection data sent by a plurality of third equipment;
the first device determining the at least two second devices from the plurality of third devices;
correspondingly, the first device acquires at least two original audio data, including:
and the first equipment analyzes the screen projection data sent by the at least two second equipments to obtain the at least two original audio data.
Optionally, the determining, by the first device, the at least two second devices from the plurality of third devices includes:
the first device determining a priority order of each of the plurality of third devices;
the first device determines the at least two second devices from the plurality of third devices according to the priority order, and the priorities of the at least two second devices meet a preset condition.
Optionally, the method further comprises:
the first device receives an adjustment instruction;
and the first equipment adjusts the volume of the M audio channels according to the adjusting instruction.
The present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the audio playing method provided in any one of the foregoing method embodiments.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. An audio playing method applied to a first device, wherein the first device includes M audio channels, and M is an integer greater than 1, and the method includes:
the first equipment acquires at least two pieces of original audio data, wherein the at least two pieces of original audio data belong to screen projection data sent by at least two pieces of second equipment respectively;
the first device generates target audio data according to the at least two pieces of original audio data, wherein the target audio data comprise audio data of at least one sound channel of each piece of original audio data in the at least two pieces of original audio data, and the number of sound channels corresponding to the target audio data is a natural number smaller than or equal to M;
and the first equipment plays the target audio data through the M audio channels.
2. The method of claim 1, wherein the first device generates target audio data from the at least two raw audio data, comprising:
the first device performs channel separation on each original audio data to obtain audio data of multiple channels corresponding to each original audio data;
the first device determines target channel audio data corresponding to each piece of original audio data, wherein the target channel audio data corresponding to each piece of original audio data comprises audio data of at least one channel corresponding to the original audio data;
and the first equipment synthesizes target channel audio data corresponding to each piece of original audio data in the at least two pieces of original audio data to obtain the target audio data.
3. The method of claim 2, wherein when the number of the at least two second devices is equal to M, the target channel audio data corresponding to each original audio data comprises audio data of one channel corresponding to the original audio data.
4. The method of claim 3, wherein the target channel audio data corresponding to each of the original audio data corresponds to a different channel.
5. The method of claim 4, wherein the first device synthesizes target channel audio data corresponding to each of the at least two original audio data to obtain the target audio data, and comprises:
and the first device synthesizes the target channel audio data corresponding to each original audio data in the at least two original audio data according to a preset channel sequence and the channel corresponding to each target channel audio data to obtain the target audio data.
6. The method of any of claims 1-5, further comprising, prior to the first device obtaining at least two raw audio data:
the first equipment receives screen projection data sent by a plurality of third equipment;
the first device determining the at least two second devices from the plurality of third devices;
correspondingly, the first device acquires at least two original audio data, including:
and the first equipment analyzes the screen projection data sent by the at least two second equipments to obtain the at least two original audio data.
7. The method of claim 6, wherein the first device determines the at least two second devices from the plurality of third devices, comprising:
the first device determining a priority order of each of the plurality of third devices;
the first device determines the at least two second devices from the plurality of third devices according to the priority order, and the priorities of the at least two second devices meet a preset condition.
8. The method according to any one of claims 1-5, further comprising:
the first device receives an adjustment instruction;
and the first equipment adjusts the volume of the M audio channels according to the adjusting instruction.
9. An audio playing apparatus, wherein the apparatus is applied to a first device, the first device includes M audio channels, and M is an integer greater than 1, and the apparatus includes:
the data acquisition module is used for acquiring at least two pieces of original audio data, and the at least two pieces of original audio data respectively belong to screen projection data sent by at least two pieces of second equipment;
the data generating module is used for generating target audio data according to the at least two original audio data acquired by the data acquiring module, wherein the target audio data comprises audio data of at least one sound channel of each of the at least two original audio data, and the number of the sound channels corresponding to the target audio data is a natural number less than or equal to M;
and the data playing module is used for playing the target audio data generated by the data generating module through the M audio channels.
10. An electronic device is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing mutual communication by the memory through the communication bus;
a memory for storing a computer program;
a processor for implementing the steps of the audio playback method of any one of claims 1-8 when executing the program stored in the memory.
11. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the audio playback method according to any one of claims 1 to 8.
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