CN115484542A

CN115484542A - Sound channel mapping method and device, playing equipment, vehicle and storage medium

Info

Publication number: CN115484542A
Application number: CN202210954910.8A
Authority: CN
Inventors: 黄峥; 李娟�; 勾晓菲
Original assignee: Beijing Rockwell Technology Co Ltd
Current assignee: Beijing Rockwell Technology Co Ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2022-12-16

Abstract

The embodiment of the application relates to a sound channel mapping method, a sound channel mapping device, playing equipment, a vehicle and a storage medium, and belongs to the technical field of intelligent automobiles. The method comprises the following steps: determining a playing mapping relation, wherein the playing mapping relation is used for indicating the corresponding relation between the sound channel of the audio and the sound channel of the playing equipment; controlling the playing equipment to play audio based on the playing mapping relation; the playing device comprises a plurality of subwoofer sound channels, and each subwoofer sound channel is arranged in a different area of a playing space where the playing device is located; the playing mapping relationship comprises: the subwoofer channel of audio is mapped to at least two subwoofer channels of the plurality of subwoofer channels. The method can solve the problem that the expression force of the bass sounds in different areas is uneven when the audio is played.

Description

Sound channel mapping method and device, playing equipment, vehicle and storage medium

Technical Field

The embodiment of the application relates to the technical field of intelligent automobiles, in particular to a sound channel mapping method, a sound channel mapping device, a playing device, a vehicle and a storage medium.

Background

With the improvement of the requirements of users on the sound system, the playing effect of the sound system is better and better, wherein, in the measurement of the quality of the sound system, the expressive force of heavy and low sound is an important factor. In the existing sound system, the attention to the heavy bass is not enough, when the audio is played, the bass in the area close to the subwoofer is too heavy, the bass in the area far away from the subwoofer is not enough, the problem of uneven expressive force of the heavy bass in different areas is caused, and the user experience is seriously influenced.

Disclosure of Invention

The embodiment of the application provides a sound channel mapping method, a sound channel mapping device, a playing device, a vehicle and a storage medium, and can solve the problem that the representation of bass sounds in different areas is uneven when audio is played.

In a first aspect, an embodiment of the present application provides a channel mapping method, which is applied to a playback device, and the method includes: determining a playing mapping relation, wherein the playing mapping relation is used for indicating the corresponding relation between the sound channel of the audio and the sound channel of the playing equipment; controlling the playing equipment to play audio based on the playing mapping relation; the playing equipment comprises a plurality of subwoofer sound channels, and each subwoofer sound channel is arranged in a different area of a playing space where the playing equipment is arranged; the playing mapping relationship comprises: the subwoofer channel of audio is mapped to at least two subwoofer channels of the plurality of subwoofer channels.

Optionally, the playing the mapping relationship further includes: a first left parametric channel of the audio is mapped to a second left parametric channel of the playback device and a first right parametric channel of the audio is mapped to a second right parametric channel of the playback device.

Optionally, the audio further comprises a center channel; the playing mapping relationship further comprises: under the condition that the playing device comprises at least one center sound channel, the center sound channel of the audio is mapped to any center sound channel of the playing device; in the case where the playback device does not include a center channel, the center channel of the audio is mapped to a second left parametric channel and a second right parametric channel.

Optionally, the second left parametric channel comprises a left front channel and a left back channel, and the second right parametric channel comprises a right front channel and a right back channel; the first left parametric channel comprises a left channel and a left surround channel, and the first right parametric channel comprises a right channel and a right surround channel; the mapping of the first left parameter channel of the audio to the second left parameter channel of the playback device specifically includes: mapping a left channel of the audio to a left front channel of the playing device, and mapping a right channel of the audio to a right front channel of the playing device; the mapping of the first right parameter channel of the audio to the second right parameter channel of the playback device specifically includes: the left surround channel of the audio is mapped to the left rear channel of the playback device and the right surround channel of the audio is mapped to the right rear channel of the playback device.

Optionally, the audio further comprises a left rear surround channel and a right rear surround channel; the playing mapping relationship further includes: in the case where the playback device includes a left rear surround channel and a right rear surround channel, the left rear surround channel of the audio is mapped to the left rear surround channel of the playback device, and the right rear surround channel of the audio is mapped to the right rear surround channel of the playback device; in the case where the playback device does not include a left back surround channel and a right back surround channel, the left back surround channel of the audio is mapped to the left back channel of the playback device and the right back surround channel of the audio is mapped to the right back channel of the playback device.

Optionally, the audio further comprises a left front 3D channel and a right front 3D channel; the playing mapping relationship further includes: in the case that the playback device includes a front left 3D channel and a front right 3D channel, the front left 3D channel of the audio is mapped to the front left 3D channel of the playback device, and the front right 3D channel of the audio is mapped to the front right 3D channel of the playback device; in the case where the playback device does not include a front left 3D channel and a front right 3D channel, the front left 3D channel of the audio is mapped to the front left channel of the playback device and the front right 3D channel of the audio is mapped to the front right channel of the playback device.

Optionally, the audio comprises a left rear 3D channel and a right rear 3D channel; the playing mapping relationship further includes: under the condition that the playing device comprises a left back 3D sound channel and a right back 3D sound channel, the left back 3D sound channel of the audio is mapped to the left back 3D sound channel of the playing device, and the right back 3D sound channel of the audio is mapped to the right back 3D sound channel of the playing device; in the case where the playback device includes a left rear surround channel and a right rear surround channel and does not include a left rear 3D channel, the right rear 3D channel, the left rear 3D channel of the audio is mapped to the left rear channel of the playback device, and/or the left rear surround channel, the right rear 3D channel of the audio is mapped to the right rear channel of the playback device, and/or the right rear surround channel; in the case where the playback device does not include a rear left 3D channel, a rear right 3D channel, a rear left surround channel, and a rear right surround channel, the rear left 3D channel of the audio is mapped to the rear left channel of the playback device, and the rear right 3D channel of the audio is mapped to the rear right channel of the playback device.

In a second aspect, an embodiment of the present application provides a channel mapping apparatus, including: the determining module is used for controlling the module; the determining module is used for determining a playing mapping relation, and the playing mapping relation is used for indicating the corresponding relation between the sound channel of the audio and the sound channel of the playing equipment; the control module is used for controlling the playing equipment to play audio based on the playing mapping relation; the playing device comprises a plurality of subwoofer sound channels, and each subwoofer sound channel is arranged in a different area of a playing space where the playing device is located; the playing mapping relationship comprises: the subwoofer channel of audio is mapped to at least two subwoofer channels of the plurality of subwoofer channels.

Optionally, the audio further comprises a center channel; the playing mapping relationship further includes: under the condition that the playing device comprises at least one center channel, the center channel of the audio is mapped to any center channel of the playing device; in the case where the playback device does not include a center channel, the center channel of the audio is mapped to a second left parametric channel and a second right parametric channel.

Optionally, the audio further comprises a left rear surround channel and a right rear surround channel; the playing mapping relationship further comprises: in the case where the playback device includes a left rear surround channel and a right rear surround channel, the left rear surround channel of the audio is mapped to the left rear surround channel of the playback device, and the right rear surround channel of the audio is mapped to the right rear surround channel of the playback device; in the case where the playback device does not include a left back surround channel and a right back surround channel, the left back surround channel of the audio is mapped to the left back channel of the playback device and the right back surround channel of the audio is mapped to the right back channel of the playback device.

Optionally, the audio comprises a left rear 3D channel and a right rear 3D channel; the playing mapping relationship further includes: under the condition that the playing device comprises a left back 3D sound channel and a right back 3D sound channel, the left back 3D sound channel of the audio is mapped to the left back 3D sound channel of the playing device, and the right back 3D sound channel of the audio is mapped to the right back 3D sound channel of the playing device; in the case where the playback device includes a left rear surround channel and a right rear surround channel and does not include a left rear 3D channel, the right rear 3D channel of the audio being mapped to the left rear channel of the playback device, and/or the left rear surround channel, the right rear 3D channel of the audio being mapped to the right rear channel of the playback device, and/or the right rear surround; in the case where the playback device does not include a rear left 3D channel, a rear right 3D channel, a rear left surround channel, and a rear right surround channel, the rear left 3D channel of the audio is mapped to the rear left channel of the playback device, and the rear right 3D channel of the audio is mapped to the rear right channel of the playback device.

In a third aspect, an embodiment of the present application provides a playback device, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, where the program or instructions, when executed by the processor, implement the steps of the channel mapping method according to the first aspect.

In a fourth aspect, an embodiment of the present application provides a vehicle, including the playback device of the third aspect, and a speaker corresponding to each channel of the playback device.

In a fifth aspect, the present application provides a readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the channel mapping method according to the first aspect.

A sixth aspect of embodiments of the present application provides a computer program product, wherein the computer program product comprises a computer program or instructions, which, when run on a processor, cause the processor to execute the computer program or instructions, implementing the steps of the channel mapping method according to the first aspect.

In a seventh aspect of the embodiments of the present application, a chip is provided, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the steps of the channel mapping method according to the first aspect.

In the technical scheme provided by the embodiment of the application, a playing mapping relation is determined, and the playing mapping relation is used for indicating the corresponding relation between the sound channel of the audio and the sound channel of the playing equipment; controlling the playing equipment to play audio based on the playing mapping relation; the playing device comprises a plurality of subwoofer sound channels, and each subwoofer sound channel is arranged in a different area of a playing space where the playing device is located; the playing mapping relationship comprises: the subwoofer channel of audio is mapped to at least two subwoofer channels of the plurality of subwoofer channels. At least two in a plurality of subwoofer sound channels through with the subwoofer sound channel mapping of audio frequency to playback devices setting, for only one subwoofer sound channel broadcast heavy bass, can have the regional bass overweight of being close to the subwoofer, keep away from the regional bass of subwoofer not enough, the uneven problem of expressive force of the heavy bass of different regions, a plurality of subwoofer sound channels broadcast heavy bass, the uneven problem of expressive force of the heavy bass that can significantly reduce, because a plurality of subwoofers broadcast in the different positions of broadcast space region, broadcast heavy bass simultaneously, make the distribution of the heavy bass of whole broadcast space region more even, the expressive force of heavy bass is better, user experience is better.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be 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 to obtain other drawings without inventive exercise.

Fig. 1 is a schematic flowchart of a channel mapping method provided in the present disclosure;

fig. 2 is a schematic view of a channel mapping relationship of a channel mapping method provided in the present disclosure;

fig. 3 is a second schematic view of a channel mapping relationship of the channel mapping method provided in the present disclosure;

fig. 4 is a third schematic view of a sound channel mapping relationship of the sound channel mapping method provided by the present disclosure;

fig. 5 is a fourth schematic view of a channel mapping relationship of the channel mapping method provided in the present disclosure;

fig. 6 is a fifth schematic view of a channel mapping relationship of the channel mapping method provided by the present disclosure;

fig. 7 is a sixth schematic view illustrating a channel mapping relationship of the channel mapping method provided in the present disclosure;

fig. 8 is a seventh schematic diagram of a channel mapping relationship of the channel mapping method provided in the present disclosure;

fig. 9 is an eighth schematic view of a channel mapping relationship of a channel mapping method provided by the present disclosure;

FIG. 10 is a ninth schematic view of a channel mapping relationship of a channel mapping method according to the present disclosure;

fig. 11 is a schematic structural diagram of a channel mapping apparatus provided in the present disclosure;

fig. 12 is a schematic diagram of a hardware structure of a playback device provided in the present disclosure.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The following first explains some of the nouns or terms referred to in the claims and the specification of the present invention.

And (3) upmixing: and multi-channel audio, wherein one channel of the audio is mapped into a plurality of channels of a specified playing device through channel copying.

Mixing: and multi-channel audio, wherein the content between the channels is combined to meet the condition that the content is less lost after combination.

A loudspeaker: the loudspeaker is a transducer for converting an electric signal into an acoustic signal, and the quality of the loudspeaker greatly affects the sound quality.

5.1 sound system: where 5 represents 5 channels, including: a left front channel, a right front channel, a center channel, a left back channel, and a right back channel; 1 represents a subwoofer channel.

5.1.2 Sound System: where 5 represents 5 channels, including: a left front channel, a right front channel, a center channel, a left back channel, and a right back channel; 1 represents a subwoofer channel; 2 represents 2 channels, including: left front 3D channel, right front 3D channel.

7.1.4 Sound System: where 7 represents 7 channels, including: a left front channel, a right front channel, a center channel, a left back channel, a right back channel, a left back surround channel, and a right back surround channel; 1 represents a subwoofer channel; 4 represents 4 channels, including: a front left 3D channel, a front right 3D channel, a back left 3D channel, and a back right 3D channel.

7.3.4 Sound System: where 7 represents 7 channels, including: a left front channel, a right front channel, a center channel, a left back channel, a right back channel, a left back surround channel, and a right back surround channel; 3 represents 3 subwoofer channels; 4 represents 4 channels, including: a front left 3D channel, a front right 3D channel, a back left 3D channel, and a back right 3D channel.

Sound channel: in the sound source, the sound is collected or played back at different spatial positions during recording or playing; in the playing device, the hardware channel and the sound output circuit are indicated.

And (3) sound channel mapping: the specified channel audio is sent to the specified hardware channel.

Wherein, in the playing device, each sound channel corresponds to at least one loudspeaker. The following takes a 7.3.4 sound system as an example to illustrate the correspondence between the sound channels and the loudspeakers:

any of the front left channel, front right channel, center channel, back left channel, back right channel, front left 3D channel, front right 3D channel, back left 3D channel, back right 3D channel, and subwoofer channel in the 7.3.4 sound system may correspond to a set of speakers. Each set of speakers may include at least one speaker, which may be determined according to actual situations, and is not limited herein. If a group of loudspeakers corresponding to a sound channel is one loudspeaker, the loudspeaker is used for playing the audio signal corresponding to the sound channel; if a group of speakers corresponding to a channel is a plurality of speakers, each speaker may be used to play a portion of a different range of the audio signal. The greater the number of speakers corresponding to a channel, the finer the sound zone division of the audio signal corresponding to the channel. For example, if the front left channel corresponds to 3 speakers, the 3 speakers are respectively used for playing a part of a high range, a part of a middle range and a part of a low range in the audio signal corresponding to the front left channel (the 3 speakers are correspondingly divided into the high range, the middle range and the low range); if the front left channel corresponds to 2 speakers, the 2 speakers are respectively used for playing a part of a high-pitched region and a part of a low-pitched region in the audio signal corresponding to the front left channel (the 2 speakers are correspondingly divided into the high-pitched region and the low-pitched region).

It should be noted that, in the playing device, each sound channel may be an independent sound output line, the sound output line may transmit an audio signal corresponding to the sound channel, each sound channel may also be subdivided into at least two sub output lines, the playing device distributes the audio signal corresponding to the sound channel to obtain a plurality of sub audio signals, and controls each sub output line to output the corresponding sub audio signal respectively; the method can be determined according to actual use requirements, and is not limited herein.

Illustratively, taking the vehicle including a playback device, which is a 7.3.4 sound system as an example, the speaker corresponding to the front left channel may be disposed in at least one of the following positions: a left front door, left front door glass, a left column A and a left column B; the speaker corresponding to the front right channel may be disposed in at least one of: a right front door, right front door glass, a right side A column and a right side B column; the speaker corresponding to the left rear channel may be disposed in at least one of the following positions: a left rear door, left rear door glass, a left C column, a left D column and a left B column; the speaker corresponding to the rear right channel may be disposed in at least one of the following positions: the left rear door, the left rear door glass, the left C column, the left D column and the left B column; the loudspeaker corresponding to the center channel can be arranged on at least one of the following positions: an IP station, front windshield; the speakers corresponding to the left rear surround channel may be positioned in at least one of: a left rear door, left rear door glass, a left C column and a left D column; the speakers for the right rear surround channel may be positioned in at least one of: the right rear door, the right rear door glass, the right C column and the right D column; the left front 3D channel corresponding speaker may be located in at least one of the following positions: the upper end of a left front door, the upper end of a left front A column and the upper end of a left front B column; the front right 3D channel corresponding speaker may be located in at least one of: the upper end of a right front door, the upper end of a right column A and the upper end of a right column B; the speakers corresponding to the rear left 3D channels may be placed in at least one of the following positions: the upper end of the left rear door, the upper end of the left C column and the upper end of the left D column; the speaker corresponding to the rear right 3D channel may be disposed in at least one of the following positions: the upper end of a right rear door, the upper end of a right C column and the upper end of a right D column; the loudspeakers corresponding to the 3 subwoofer sound channels are respectively arranged as follows: a left front region (e.g., near the left front door or left front door glass), a right front region (e.g., near the right front door or right front door glass), a trunk region. The position of the speaker arrangement corresponding to each channel is not limited to the above arrangement, and may be specifically set to other positions according to actual situations.

The execution subject of the channel mapping method provided in the embodiment of the present application may be the playback device, a functional module and/or a functional entity capable of implementing the channel mapping method in the playback device, or a controller of a vehicle, where the controller controls the playback device to implement the channel mapping method, and may specifically be determined according to actual use requirements, and the embodiment of the present application is not limited.

The channel mapping method provided by the embodiments of the present application is described in detail below with reference to the accompanying drawings.

As shown in fig. 1, an embodiment of the present application provides a channel mapping method, and the following takes an execution subject as a playing device as an example to exemplarily describe the channel mapping method provided in the embodiment of the present application. The method may include steps 101 to 102 described below.

101. And determining a play mapping relation.

The playing mapping relation is used for indicating the corresponding relation between the sound channel of the audio and the sound channel of the playing device.

102. Based on the playing mapping relation, the playing device is controlled to play audio, the playing device comprises a plurality of subwoofer sound channels, and each subwoofer sound channel is arranged in different areas of a playing space of the playing device.

Wherein, the playing mapping relation comprises: the subwoofer channel of audio is mapped to at least two subwoofer channels of the plurality of subwoofer channels.

It should be noted that the playback device may be applied to a place where the playback device needs to be used, such as a home theater, a conference room, a movie theater, a vehicle, and the like, and a specific application scenario or application place is not limited in the embodiment of the present application. The following description will be explained mainly as applied to a vehicle.

It will be appreciated that the playback device includes a plurality of subwoofer channels, each subwoofer being disposed in a different spatial region.

Exemplarily, be provided with 3 subwoofers in the vehicle, set up a plurality of subwoofers in the different spatial regions of vehicle, the speaker that 3 subwoofer sound channels correspond sets up respectively: a front left region (e.g., front left door or front left door glass), a front right region (e.g., front right door or front right door glass), a trunk region; be provided with 5 subwoofers in the vehicle, the speaker that 3 subwoofer sound channels correspond sets up respectively: a left front region (e.g., near the left front door or left front door glass), a right front region (e.g., near the right front door or right front door glass), a left rear region (e.g., near the left rear door or left rear door glass), a right rear region (e.g., near the right rear door or right front door glass), a trunk region.

It can be understood that the corresponding relationship between the audio subwoofer channel and the audio subwoofer channel of the playing device is as follows: the subwoofer channel of the audio is mapped to at least two subwoofer channels in a plurality of subwoofer channels set in the playing device, and specifically, the subwoofer channel of the audio can be mapped to each subwoofer channel in the plurality of subwoofer channels set in the playing device; the subwoofer channels of the audio can also be mapped to any plurality of subwoofer channels in a plurality of subwoofer channels set in the playing equipment; the method can also be preset, and the subwoofer sound channel of the audio is mapped to a plurality of fixed subwoofer sound channels in a plurality of subwoofer sound channels set in the playing equipment; the method can be determined according to actual requirements, and the embodiment of the application is not limited.

It can be understood that the audio may be analyzed by the decoding apparatus to obtain a plurality of channels, and the number of the specifically analyzed channels is determined according to actual needs, which is not limited in the embodiment of the present application.

Exemplarily, in the playback device, taking a sound system of 7.1.4 as an example, the analyzed audio channels and the channels of the playback device are in one-to-one correspondence, as shown in fig. 2, the left side is the audio channel, the right side is the channel of the playback device, and the mapping relationship between the audio channel and the channel of the playback device is as follows: the left channel is mapped to the left front channel, the right channel is mapped to the right front channel, the center channel is mapped to the center channel, the subwoofer channel is mapped to the subwoofer channel (only one subwoofer is played, the expression of heavy bass in different spatial regions is uneven), the left surround channel is mapped to the left back channel, the right surround channel is mapped to the right back channel, the left back surround channel is mapped to the left back surround channel, the right back surround channel is mapped to the right back surround channel, the left front 3D channel is mapped to the left front 3D channel, the right front 3D channel is mapped to the right front 3D channel, the left back 3D channel is mapped to the left back 3D channel, and the right back 3D channel is mapped to the right back 3D channel.

For example, as shown in fig. 3, the left side is a channel of audio, the right side is a channel of a playing device, and the mapping relationship between the channel of audio and the channel of the playing device is as follows: the left channel maps to the front left channel, the right channel maps to the front right channel, the center channel maps to the center channel, the subwoofer channel maps to subwoofer channel 1, the left surround channel maps to the back left channel, the right surround channel maps to the back right channel, the back left surround channel maps to the back left channel, the back right surround channel maps to the back right channel, the front left 3D channel maps to the front left 3D channel, the front right 3D channel maps to the front right 3D channel, the back left 3D channel maps to the back left 3D channel, the back right 3D channel maps to the back right 3D channel, subwoofer channel 2 and subwoofer channel 3 are idle (only one subwoofer plays, the expressiveness of heavy bass in different spatial regions is not uniform).

For example, as shown in fig. 4, as an alternative upmixing manner, the left side is a channel of audio, the right side is a channel of a playing device, and a mapping relationship between the channel of the audio and the channel of the playing device is as follows: the left channel maps to the left front channel, the right channel maps to the right front channel, the center channel maps to the center channel, the subwoofer channel maps to subwoofer channel 1, subwoofer channel 2 and subwoofer channel 3 (i.e. upmixing, ensuring that played subwoofer has more expressive power, avoiding the problem that heavy bass is unevenly expressed in different spatial regions), the left surround channel maps to the left rear channel, the right surround channel maps to the right rear channel, the left rear surround channel maps to the left rear surround channel, the right rear surround channel maps to the right rear surround channel, the left front 3D channel maps to the left front 3D channel, the right front 3D channel maps to the right front 3D channel, the left rear 3D channel maps to the left rear 3D channel, and the right rear 3D channel maps to the right rear 3D channel.

In the embodiment of the application, a playing mapping relation is determined, wherein the playing mapping relation is used for indicating the corresponding relation between the sound channel of the audio and the sound channel of the playing equipment; controlling the playing equipment to play audio based on the playing mapping relation; the playing device comprises a plurality of subwoofer sound channels, and each subwoofer sound channel is arranged in a different area of a playing space where the playing device is located; the playing mapping relationship comprises: the subwoofer channel of audio is mapped to at least two subwoofer channels of the plurality of subwoofer channels. At least two in a plurality of subwoofer sound channels through with the subwoofer sound channel mapping of audio frequency to playback devices setting, for only one subwoofer sound channel broadcast heavy bass, can have the regional bass overweight of being close to the subwoofer, keep away from the regional bass of subwoofer not enough, the uneven problem of expressive force of the heavy bass of different regions, a plurality of subwoofer sound channels broadcast heavy bass, the uneven problem of expressive force of the heavy bass that can significantly reduce, because a plurality of subwoofers broadcast in the different positions of broadcast space region, broadcast heavy bass simultaneously, make the distribution of the heavy bass of whole broadcast space region more even, the expressive force of heavy bass is better, user experience is better.

It can be understood that the sound channels of the audio and the sound channels of the playing device are in one-to-one correspondence, and then the sound channel mapping relationship during playing is also in one-to-one correspondence; the audio channels and the playback device channels cannot correspond one-to-one, for example: one of the analyzed sound channels of the audio has no corresponding sound channel in the sound channel of the playing device (so the sound channels of the audio and the sound channels of the playing device cannot be in one-to-one correspondence), and in order to avoid losing the direction sense of the sound as much as possible, a downmix can be adopted; for another example: one of the analyzed audio channels is associated with a plurality of channels corresponding to the audio channel of the playback device (so that the audio channels and the channels of the playback device cannot be associated one-to-one).

It is understood that, taking the example of a 7.1.4 sound system as a playback device, the first left parametric channel comprises: a left channel, a left surround channel, a left back surround channel, a left front 3D channel, a left back 3D channel; the first right parametric channel includes: a right channel, a right surround channel, a right back surround channel, a right front 3D channel, a right back 3D channel; the second left parametric channel includes: a left front channel, a left rear surround channel, a left front 3D channel, a left rear 3D channel; the second right parametric channel includes: right channel, right surround channel, right back surround channel, right front 3D channel, right back 3D channel.

It is understood that, in the mapping relationship of the channels, the first left parameter and the second left parameter may be mapped arbitrarily, that is: the first left parameter and the second left parameter may be in one-to-one correspondence, a certain channel of the first left parameter may be mapped to multiple channels of the second parameter, or multiple channels of the first left parameter may be mapped to a certain channel of the second parameter, which is a specific mapping relationship.

In this embodiment of the present application, the playing mapping relationship further includes: a first left parametric channel of the audio is mapped to a second left parametric channel of the playback device and a first right parametric channel of the audio is mapped to a second right parametric channel of the playback device. Therefore, the good expressive force of the bass is ensured, the corresponding playing sound channels are also arranged in other sound channels of the audio, and the loss of the azimuth sense of the audio is reduced.

Optionally, the audio further includes a center channel, and the playing mapping relationship further includes:

in the case where the playback apparatus includes at least one center channel, the center channel of the audio is mapped to any one of the center channels of the playback apparatus.

It can be understood that a center channel is set in the playing device, and the center channel of the audio is mapped to the center channel of the playing device; the playing device is provided with a plurality of center channels, the center channel of the audio can be mapped to any center channel of the playing device, and the center channel of the audio can also be mapped to any appointed center channel of the playing device; specifically, the embodiments of the present application are not limited according to actual situations.

For example, taking the vehicle including the playback device as an example, the front and rear spatial regions of the vehicle are both provided with a center channel, and the center channel of the audio may be mapped to the center channel of the front row or to the center channel of the rear row; however, in actual use, the center channel of the audio is mapped to the center channel of the front row, and the playing effect is better than that of the center channel mapped to the rear row, so that in actual use, when the playing device includes a plurality of center channels, the center channel of the audio is mapped to the center channel of the front row.

In a case where the playback device does not include a center channel, the center channel of the audio is mapped to a second left parametric channel and a second right parametric channel.

It is to be understood that, in the case where the playback apparatus does not include a center channel, the center channel of the audio is mapped to all channels included in the second left parametric channel and the second right parametric channel, or to some channels included in the second parametric channel and the second right parametric channel; specifically, the embodiments of the present application are not limited according to actual situations.

Exemplarily, there is no center channel in the playback device, as shown in fig. 5, which is an optional mapping manner, the left side is a channel of the audio, the right side is a channel of the playback device, and the mapping relationship between the channel of the audio and the channel of the playback device is as follows: the left channel is mapped to the left front channel, the right channel is mapped to the right front channel, the subwoofer channel is mapped to subwoofer channel 1, subwoofer channel 2 and subwoofer channel 3, the left surround channel is mapped to the left rear channel, the right surround channel is mapped to the right rear channel, the left front 3D channel is mapped to the left front 3D channel, the right front 3D channel is mapped to the right front 3D channel, the center channel is mapped to the left front channel, the right front channel, the left rear channel and the right rear channel (i.e., downmix).

In this embodiment of the present application, the audio further includes a center channel, and the playing mapping relationship further includes: under the condition that the playing device comprises at least one center channel, the center channel of the audio is mapped to any center channel of the playing device; in a case where the playback device does not include a center channel, the center channel of the audio is mapped to a second left parametric channel and a second right parametric channel. In this way, it is ensured that the center channel of the audio corresponds to the center channel of the playback device when the center channel is included in the playback device, and the center channel of the audio is mapped to the second left parameter channel and the second right parameter channel in order to reduce loss of the sense of orientation of the sound when the center channel is not included in the playback device.

Optionally, the first left parametric channel comprises a left channel and a left surround channel, and the first right parametric channel comprises a right channel and a right surround channel; the second left parametric channel comprises a left front channel and a left back channel, and the second right parametric channel comprises a right front channel and a right back channel; the mapping of the first left parameter channel of the audio to the second left parameter channel of the playback device specifically includes:

mapping a left sound channel of the audio to a left front sound channel of the playing device, and mapping a right sound channel of the audio to a right front sound channel of the playing device;

the mapping of the first right parameter channel of the audio to the second right parameter channel of the playback device specifically includes:

the left surround channel of the audio is mapped to the left rear channel of the playback device and the right surround channel of the audio is mapped to the right rear channel of the playback device.

For example, as shown in fig. 6, an optional mapping relationship for playing is shown, where the left side is a channel of audio, the right side is a channel of playing equipment, and the mapping relationship between the channel of audio and the channel of playing equipment is as follows: the left channel is mapped to the left front channel, the right channel is mapped to the right front channel, the subwoofer channel is mapped to the subwoofer channel 1, the subwoofer channel 2 and the subwoofer channel 3, the left surround channel is mapped to the left rear channel, the right surround channel is mapped to the right rear channel, the left front 3D channel is mapped to the left front 3D channel, the right front 3D channel is mapped to the right front 3D channel, and the center channel is mapped to the center channel 1 (the center channel is mapped to any center channel).

In an embodiment of the application, the first left parametric channel comprises a left channel and a left surround channel, and the first right parametric channel comprises a right channel and a right surround channel; the second left parametric channel comprises a left front channel and a left back channel, and the second right parametric channel comprises a right front channel and a right back channel; the mapping of the first left parameter channel of the audio to the second left parameter channel of the playback device specifically includes: mapping a left channel of the audio to a left front channel of the playing device, and mapping a right channel of the audio to a right front channel of the playing device; the mapping of the first right parameter channel of the audio to the second right parameter channel of the playback device specifically includes: the left surround channel of the audio is mapped to the left rear channel of the playback device and the right surround channel of the audio is mapped to the right rear channel of the playback device. So, the subwoofer sound channel of audio frequency maps to a plurality of subwoofer sound channels, has ensured that the bass has better expressive force, and the sound channel of the audio frequency that is analyzed out is broadcast by the sound channel that playback devices corresponds when having corresponding relation with playback devices to the all the other sound channels of audio frequency for the broadcast effect of audio frequency is better, and user experience is better.

Optionally, the audio further includes a left rear surround channel and a right rear surround channel, and the playing mapping further includes:

in the case where the playback device includes a left rear surround channel and a right rear surround channel, the left rear surround channel of the audio is mapped to the left rear surround channel of the playback device, and the right rear surround channel of the audio is mapped to the right rear surround channel of the playback device;

in the case where the playback device does not include a left back surround channel and a right back surround channel, the left back surround channel of the audio is mapped to the left back channel of the playback device and the right back surround channel of the audio is mapped to the right back channel of the playback device.

Illustratively, the playback device does not have a left back surround channel and a right back surround channel, as shown in fig. 7, which is an optional playback mapping relationship, where the left side is a channel of audio, the right side is a channel of the playback device, and the mapping relationship between the channel of audio and the channel of the playback device is as follows: the left channel is mapped to the left front channel, the right channel is mapped to the right front channel, the subwoofer channel is mapped to the subwoofer channel 1, the subwoofer channel 2 and the subwoofer channel 3, the left surround channel is mapped to the left rear channel, the right surround channel is mapped to the right rear channel, the left rear surround channel is mapped to the left rear channel, and the right rear surround channel is mapped to the right rear channel.

In this embodiment of the application, the audio further includes a left back surround channel and a right back surround channel, and the playing mapping relationship further includes: in the case where the playback device includes a left rear surround channel and a right rear surround channel, the left rear surround channel of the audio is mapped to the left rear surround channel of the playback device, and the right rear surround channel of the audio is mapped to the right rear surround channel of the playback device; in the case where the playback device does not include a left back surround channel and a right back surround channel, the left back surround channel of the audio is mapped to the left back channel of the playback device and the right back surround channel of the audio is mapped to the right back channel of the playback device. Therefore, when the sound channel of the audio frequency has a corresponding relation with the playing equipment, the sound channel of the audio frequency analyzed by the sound channel corresponding to the playing equipment is played, so that the playing effect of the audio frequency is better, the user experience is better, when the playing equipment does not have a left back surround sound channel and a right back surround sound channel, the left back surround sound channel of the audio frequency is mapped to the left back sound channel of the playing equipment, the right back surround sound channel of the audio frequency is mapped to the right back sound channel of the playing equipment, and the loss of the azimuth sense of the audio frequency can be reduced.

Optionally, the audio further includes a left front 3D channel and a right front 3D channel, and the playing mapping further includes:

in the case that the playback device includes a front left 3D channel and a front right 3D channel, the front left 3D channel of the audio is mapped to the front left 3D channel of the playback device, and the front right 3D channel of the audio is mapped to the front right 3D channel of the playback device;

in the case where the playback device does not include a front left 3D channel and a front right 3D channel, the front left 3D channel of the audio is mapped to the front left channel of the playback device and the front right 3D channel of the audio is mapped to the front right channel of the playback device.

Exemplarily, as shown in fig. 8, which is an optional mapping relationship for playing, the left side is a channel of audio, the right side is a channel of playing equipment, and the mapping relationship between the channel of audio and the channel of playing equipment is as follows: the left channel maps to the left front channel, the right channel maps to the right front channel, the subwoofer channel maps to subwoofer channel 1, subwoofer channel 2 and subwoofer channel 3, the left surround channel maps to the left rear channel, the right surround channel maps to the right rear channel, the left front 3D channel maps to the left front channel, the right front 3D channel maps to the right front channel, and the center channel maps to the center channel.

In this embodiment of the application, the audio further includes a left front 3D channel and a right front 3D channel, and the playing mapping relationship further includes: in the case that the playback device includes a front left 3D channel and a front right 3D channel, the front left 3D channel of the audio is mapped to the front left 3D channel of the playback device, and the front right 3D channel of the audio is mapped to the front right 3D channel of the playback device; in the case where the playback device does not include a front left 3D channel and a front right 3D channel, the front left 3D channel of the audio is mapped to the front left channel of the playback device and the front right 3D channel of the audio is mapped to the front right channel of the playback device. So, when the sound track of audio frequency and playback device have corresponding relation, the sound track of the audio frequency of analyzing out is played by the sound track that playback device corresponds for the broadcast effect of audio frequency is better, and user experience is better, and when no front left 3D sound track and front right 3D sound track among the playback device, the front left 3D sound track of audio frequency maps to the front left sound track of playback device, and the front right 3D sound track of audio frequency maps to the front right sound track of playback device, can reduce losing of the position sense of audio frequency.

Optionally, the audio includes a left rear 3D channel and a right rear 3D channel, and the playing the mapping relationship further includes:

in the case where the playback device includes a rear left 3D channel and a rear right 3D channel, the rear left 3D channel of the audio is mapped to the rear left 3D channel of the playback device, and the rear right 3D channel of the audio is mapped to the rear right 3D channel of the playback device.

In case the playback device comprises a left back surround channel and a right back surround channel and no left back 3D channel, right back 3D channel, the left back 3D channel of the audio is mapped to the left back channel of the playback device, and/or the left back surround channel, the right back 3D channel of the audio is mapped to the right back channel of the playback device, and/or the right back surround.

It is understood that the playback device includes a left back surround channel and a right back surround channel and does not include a left back 3D channel, a right back 3D channel, a left back 3D channel of audio is mapped to the left back channel of the playback device, or to the left back surround channel of the playback device, or to the left back channel and the left back surround channel of the playback device; the rear right 3D channel of the audio is mapped to the rear right channel of the playback device, or to the rear right surround sound of the playback device, or to the rear right channel and the rear right surround sound of the playback device.

For example, as shown in fig. 9, the left side is a channel of the audio, the right side is a channel of the playing device, and the mapping relationship between the channel of the audio and the channel of the playing device is as follows: the left channel is mapped to the front left channel, the right channel is mapped to the front right channel, the center channel is mapped to the center channel, the subwoofer channel is mapped to the subwoofer channel 1, the subwoofer channel 2 and the subwoofer channel 3, the left surround channel is mapped to the rear left channel, the right surround channel is mapped to the rear right channel, the rear left channel is mapped to the rear left channel, the rear right channel is mapped to the rear right channel, the front left 3D channel is mapped to the front left 3D channel, the front right 3D channel is mapped to the front right 3D channel, the rear left 3D channel is mapped to the rear left channel and the rear left channel, and the rear right channel is mapped to the rear right channel and the rear right channel.

In the case where the playback device does not include a rear left 3D channel, a rear right 3D channel, a rear left surround channel, and a rear right surround channel, the rear left 3D channel of the audio is mapped to the rear left channel of the playback device, and the rear right 3D channel of the audio is mapped to the rear right channel of the playback device.

For example, as shown in fig. 10, the left side is a channel of audio, the right side is a channel of a playing device, and the mapping relationship between the channel of audio and the channel of the playing device is as follows: the left channel is mapped to the left front channel, the right channel is mapped to the right front channel, the center channel is mapped to the center channel, the subwoofer channel is mapped to the subwoofer channel 1, the subwoofer channel 2 and the subwoofer channel 3, the left surround channel is mapped to the left rear channel, the right surround channel is mapped to the right rear channel, the left rear surround channel is mapped to the left rear channel, the right rear surround channel is mapped to the right rear channel, the left front 3D channel is mapped to the left front channel, the right front 3D channel is mapped to the right front channel, the left rear 3D channel is mapped to the left rear channel, and the right rear 3D channel is mapped to the right rear channel.

In the embodiment of the application, under the condition that the playing device comprises a left rear 3D sound channel and a right rear 3D sound channel, the left rear 3D sound channel of the audio is mapped to the left rear 3D sound channel of the playing device, and the right rear 3D sound channel of the audio is mapped to the right rear 3D sound channel of the playing device; in the case where the playback device includes a left rear surround channel and a right rear surround channel and does not include a left rear 3D channel, the right rear 3D channel of the audio being mapped to the left rear channel of the playback device, and/or the left rear surround channel, the right rear 3D channel of the audio being mapped to the right rear channel of the playback device, and/or the right rear surround; in the case that the playback device does not include a rear left 3D channel, a rear right 3D channel, a rear left surround channel, and a rear right surround channel, the rear left 3D channel of the audio is mapped to the rear left channel of the playback device, and the rear right 3D channel of the audio is mapped to the rear right channel of the playback device. So, when the sound channel of audio frequency and playback device had the corresponding relation, the sound channel of the audio frequency of analyzing out was played by the sound channel that playback device corresponds for the broadcast effect of audio frequency is better, and user experience is better, and when no back left 3D sound channel and back right 3D sound channel among the playback device, the back left 3D sound channel of audio frequency and the back right 3D sound channel map to other sound channels of playback device, have reduced losing of the position sense of audio frequency.

Fig. 11 is a schematic structural diagram of a channel mapping apparatus provided in the present disclosure, and as shown in fig. 11, the channel mapping apparatus includes: a determination module 110, a control module 111; a determining module 110, configured to determine a playing mapping relationship, where the playing mapping relationship is used to indicate a correspondence relationship between a sound channel of an audio and a sound channel of a playing device; the control module 111 is configured to control the playback device to play audio based on the playback mapping relationship; the playing device comprises a plurality of subwoofer sound channels, and each subwoofer sound channel is arranged in a different area of a playing space where the playing device is located; the playing mapping relationship comprises: the subwoofer channel of audio is mapped to at least two subwoofer channels of the plurality of subwoofer channels.

Optionally, the audio further comprises a center channel; the playing mapping relationship further comprises: under the condition that the playing device comprises at least one center channel, the center channel of the audio is mapped to any center channel of the playing device; in a case where the playback device does not include a center channel, the center channel of the audio is mapped to a second left parametric channel and a second right parametric channel.

Optionally, the second left parametric channel comprises a left front channel and a left rear channel, and the second right parametric channel comprises a right front channel and a right rear channel; the first left parametric channel comprises a left channel and a left surround channel, and the first right parametric channel comprises a right channel and a right surround channel; mapping a first left parameter channel of an audio to a second left parameter channel of a playback device, specifically including: mapping a left channel of the audio to a left front channel of the playing device, and mapping a right channel of the audio to a right front channel of the playing device; the mapping of the first right parameter channel of the audio to the second right parameter channel of the playback device specifically includes: the left surround channel of the audio is mapped to the left rear channel of the playback device and the right surround channel of the audio is mapped to the right rear channel of the playback device.

Optionally, the audio further comprises a left front 3D channel and a right front 3D channel; the playing mapping relationship further comprises: in the case that the playback device includes a front left 3D channel and a front right 3D channel, the front left 3D channel of the audio is mapped to the front left 3D channel of the playback device, and the front right 3D channel of the audio is mapped to the front right 3D channel of the playback device; in the case where the playback device does not include a front left 3D channel and a front right 3D channel, the front left 3D channel of the audio is mapped to the front left channel of the playback device and the front right 3D channel of the audio is mapped to the front right channel of the playback device.

Optionally, the audio comprises a left rear 3D channel and a right rear 3D channel; the playing mapping relationship further includes: under the condition that the playing device comprises a left back 3D sound channel and a right back 3D sound channel, the left back 3D sound channel of the audio is mapped to the left back 3D sound channel of the playing device, and the right back 3D sound channel of the audio is mapped to the right back 3D sound channel of the playing device; in the case where the playback device includes a left rear surround channel and a right rear surround channel and does not include a left rear 3D channel, the right rear 3D channel of the audio being mapped to the left rear channel of the playback device, and/or the left rear surround channel, the right rear 3D channel of the audio being mapped to the right rear channel of the playback device, and/or the right rear surround; in the case that the playback device does not include a rear left 3D channel, a rear right 3D channel, a rear left surround channel, and a rear right surround channel, the rear left 3D channel of the audio is mapped to the rear left channel of the playback device, and the rear right 3D channel of the audio is mapped to the rear right channel of the playback device.

The sound channel mapping apparatus provided in the embodiment of the present application may be configured to perform the steps of the method embodiment, and the implementation principle and the technical effect are similar, which are not described herein again.

It should be noted that the channel mapping apparatus may be a playing device in the foregoing method embodiment of the present application, or may also be a functional module and/or a functional entity capable of implementing the function of the embodiment of the apparatus in the playing device, and the embodiment of the present application is not limited.

In the embodiment of the present application, each module may implement the sound channel mapping method provided in the foregoing method embodiment, and may achieve the same technical effect, and for avoiding repetition, the details are not repeated here.

The beneficial effects of the various implementation manners in this embodiment may specifically refer to the beneficial effects of the corresponding implementation manners in the above embodiment of the channel mapping method, and are not described herein again to avoid repetition.

An embodiment of the present application further provides a playback device, as shown in fig. 12, where the playback device may include: the processor 201, the memory 202, and the program or the instructions stored in the memory 202 and capable of being executed on the processor 201, where the program or the instructions, when executed by the processor 201, may implement each process of the channel mapping method provided in the foregoing method embodiments, and can achieve the same technical effect, and are not described herein again to avoid repetition.

Embodiments of the present application provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the channel mapping method provided in the foregoing method embodiments, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

A vehicle provided in an embodiment of the present application includes a playback device shown in fig. 12, and speakers corresponding to each channel of the playback device. The vehicle can realize each process of the sound channel mapping method provided by the embodiment of the method, and can achieve the same technical effect, and in order to avoid repetition, the details are not repeated here.

An embodiment of the present application further provides a computer program product, where the computer program product includes a computer program or an instruction, and when the computer program product runs on a processor, the processor is enabled to execute the computer program or the instruction, so as to implement each process of the channel mapping method provided in the foregoing method embodiment, and achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each process of the above embodiment of the sound channel mapping method, and can achieve the same technical effect, and is not described herein again to avoid repetition.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, or a system-on-chip.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus, server and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and various media capable of storing program codes.

The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A method of channel mapping, the method comprising:

determining a playing mapping relation, wherein the playing mapping relation is used for indicating the corresponding relation between the sound channel of the audio and the sound channel of the playing equipment;

controlling the playing device to play the audio based on the playing mapping relation;

the playing device comprises a plurality of subwoofer sound channels, and each subwoofer sound channel is arranged in a different area of a playing space where the playing device is located;

the playing mapping relationship comprises: a subwoofer channel of the audio is mapped to at least two subwoofer channels of the plurality of subwoofer channels.

2. The method of claim 1, wherein the playing the mapping further comprises:

the first left parametric channel of the audio is mapped to a second left parametric channel of the playback device, and the first right parametric channel of the audio is mapped to a second right parametric channel of the playback device.

3. The method of claim 2, wherein the audio further comprises a center channel;

the playing mapping relationship further includes:

in the case that the playback device includes at least one center channel, the center channel of the audio is mapped to any center channel of the playback device;

in a case where the playback device does not include a center channel, the center channel of the audio is mapped to the second left parametric channel and the second right parametric channel.

4. The method of claim 2, wherein the second left parametric channel comprises a front left channel and a rear left channel, and wherein the second right parametric channel comprises a front right channel and a rear right channel;

the first left parametric channel comprises a left channel and a left surround channel, and the first right parametric channel comprises a right channel and a right surround channel;

the mapping of the first left parameter channel of the audio to the second left parameter channel of the playback device specifically includes:

the left channel of the audio is mapped to the left front channel of the playing device, and the right channel of the audio is mapped to the right front channel of the playing device;

the left surround channel of the audio is mapped to a left back channel of the playback device and the right surround channel of the audio is mapped to a right back channel of the playback device.

5. The method of claim 4, wherein the audio further comprises a left rear surround channel and a right rear surround channel;

the playing mapping relationship further includes:

in the case where the playback device includes a left back surround channel and a right back surround channel, the left back surround channel of the audio is mapped to the left back surround channel of the playback device, and the right back surround channel of the audio is mapped to the right back surround channel of the playback device;

in the case where the playback device does not include a left rear surround channel and a right rear surround channel, the left rear surround channel of the audio is mapped to the left rear channel of the playback device and the right rear surround channel of the audio is mapped to the right rear channel of the playback device.

6. The method of claim 4, wherein the audio further comprises a left front 3D channel and a right front 3D channel;

the playing mapping relationship further includes:

7. The method of claim 4, wherein the audio comprises a rear left 3D channel and a rear right 3D channel;

the playing mapping relationship further comprises:

in the case that the playback device includes a rear left 3D channel and a rear right 3D channel, the rear left 3D channel of the audio is mapped to the rear left 3D channel of the playback device, and the rear right 3D channel of the audio is mapped to the rear right 3D channel of the playback device;

in the case that the playback device includes a left rear surround channel and a right rear surround channel and does not include a left rear 3D channel, a right rear 3D channel, the left rear 3D channel of the audio is mapped to the left rear channel of the playback device, and/or, a left rear surround channel, the right rear 3D channel of the audio is mapped to the right rear channel of the playback device, and/or, a right rear surround channel;

and under the condition that the playing device does not comprise a rear left 3D sound channel, a rear right 3D sound channel, a rear left surround sound channel and a rear right surround sound channel, the rear left 3D sound channel of the audio is mapped to the rear left sound channel of the playing device, and the rear right 3D sound channel of the audio is mapped to the rear right sound channel of the playing device.

8. An apparatus for channel mapping, the apparatus comprising: a determination module and a control module;

the determining module is configured to determine a playing mapping relationship, where the playing mapping relationship is used to indicate a correspondence relationship between a sound channel of an audio and a sound channel of a playing device;

the control module is used for controlling the playing equipment to play the audio based on the playing mapping relation;

the playing equipment comprises a plurality of subwoofer sound channels, and each subwoofer sound channel is arranged in a different area of a playing space where the playing equipment is located;

9. Playback device comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, which program or instructions, when executed by the processor, implement the steps of the channel mapping method as claimed in any one of claims 1 to 7.

10. A vehicle characterized by comprising the playback device of claim 9, and at least one speaker corresponding to each channel of the playback device.

11. A readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the channel mapping method according to any one of claims 1 to 7.