CN-121985262-A - Scene mode switching method, device, electronic equipment and system of multichannel audio system

Abstract

The application relates to a scene mode switching method, a device, an electronic device, a computer readable storage medium and a computer program product for a multichannel audio system. The method comprises the steps of detecting signal states and characteristic events of an audio input end, determining equipment capability maps of all audio playing equipment contained in a multi-channel audio system, wherein the equipment capability maps represent audio playing capabilities of the audio playing equipment, determining a scene template matched with a playing scene to be switched based on the signal states and the characteristic events, wherein the scene template is predefined with equipment grouping strategies and audio processing parameters, determining target grouping and audio parameters of the audio playing equipment according to the scene template in combination with the equipment capability maps, and switching scene modes of the multi-channel audio system based on the target grouping and the audio parameters of the audio playing equipment. The method can be used for switching the scene modes of the multi-channel audio system.

Inventors

• WANG QI
• ZHAO LIFENG

Assignees

• 南京乐韵瑞信息技术有限公司

Dates

Publication Date

20260505

Application Date

20251216

Claims (20)

1. 1. A scene mode switching method of a multi-channel audio system, the method comprising: detecting signal states and characteristic events of an audio input end; Determining a device capability spectrum of each audio playback device included in the multi-channel audio system, wherein the device capability spectrum characterizes the audio playback capability of the audio playback device; Determining a scene template matched with a playing scene to be switched based on the signal state and the characteristic event, wherein the scene template is predefined with a device grouping strategy and audio processing parameters; And determining target grouping and audio parameters of the audio playing equipment according to the scene template and combining the equipment capability map, and switching the scene mode of the multi-channel audio system based on the target grouping and the audio parameters of the audio playing equipment.
2. 2. The method of claim 1, wherein detecting the signal state of the audio input comprises: And detecting the physical link state of at least one interface among the state of the high-definition multimedia interface, the audio return channel and the enhanced audio return channel, and taking the physical link state as the signal state of the audio input end.
3. 3. The method according to claim 1 or 2, wherein detecting the characteristic event comprises: Detecting at least one of an audio stream encoding format, a number of channels, a sampling rate, a dynamic range characteristic of the audio input, and/or, And detecting a device control instruction received through a consumer electronics control protocol as the characteristic event.
4. 4. The method of claim 3, wherein the device control instructions comprise instructions to power up the television, enter a system audio mode, or identify a source device type, the method further comprising: and under the condition that the equipment control instruction is detected, confirming the triggering condition of scene switching according to a predefined entering time threshold value and an exiting time threshold value.
5. 5. The method of claim 1, wherein the determining a scene template matching a playback scene to be switched based on the signal state and the feature event comprises: Applying logic rules predefined by a rules engine to the signal states and the feature events; Wherein the logic rules map the signal states and/or feature combinations of the feature events to corresponding scene templates.
6. 6. The method of claim 5, wherein the logic rules are further applied to time information, which is combined mapped with the signal states and/or the feature events.
7. 7. The method of claim 5 or 6, wherein the logic rules executed by the rules engine comprise: Triggering a home theater scene template if the feature event comprises a multi-channel coding format; And if the characteristic event comprises an identification instruction from a preset game host, triggering a game scene template.
8. 8. The method of claim 1, wherein the scene template comprises: At least one of home theater templates, music appreciation templates, game mode templates, night viewing templates and news broadcasting templates.
9. 9. The method of claim 8, wherein the home theater template predefined device consist policy includes selecting a 5.1 channel consist; the predefined audio processing parameters of the home theater template include enabling subwoofers, setting crossover points to 80Hz, and gain boosting the 1kHz to 4kHz band to enhance dialogue.
10. 10. The method of claim 8, wherein the predefined audio processing parameters of the game mode template include reducing audio processing buffering delay and turning off dynamic range compression.
11. 11. The method of claim 8, wherein the audio processing parameters predefined by the night viewing template include enabling dynamic range compression, attenuating low frequency bands, and limiting overall gain.
12. 12. The method of claim 1, wherein determining a target consist of an audio playback device based on the scene template in combination with the device capability map, comprises: based on the device capability map, evaluating all channel grouping combinations supported by the current online audio playing device; a target consist is selected from the supported consist combinations according to a predefined consist policy in the scene template.
13. 13. The method according to claim 12, wherein the method further comprises: and under the condition that the preset key equipment in the target grouping is offline, degrading the target grouping to the grouping combination of the next stage according to the equipment capability map and the grouping strategy.
14. 14. The method of claim 13, wherein the degrading the target consist to a next consist combination comprises: And under the condition that the physical center channel equipment is offline, starting a preset virtual center channel algorithm, and grouping the front left channel equipment and the front right channel equipment into a virtual multi-channel system.
15. 15. The method of claim 1, wherein switching the scene mode of the multi-channel audio system comprises: synchronizing clock domains of audio playing devices in all target groups by taking one audio device in the multichannel audio system as a main clock source; Based on the audio-visual delay characteristics of the video display device, a global audio delay compensation is calculated and configured.
16. 16. The method of claim 1, further comprising a mode fallback procedure: And under the condition that the duration of the loss of the effective signal of the current audio input end exceeds a first preset threshold value, switching the multi-channel audio system to a preset default scene template or a last effective activated non-triggering scene template.
17. 17. The method of claim 1, wherein switching the scene mode of the multi-channel audio system comprises: and finishing parameter switching within a second preset time by using a cross desalination mode so as to realize smooth transition of parameters.
18. 18. A scene mode switching device of a multi-channel audio system, the device comprising: the state and feature detection module is used for detecting signal states and feature events of the audio input end; A device capability determining module, configured to determine a device capability map of each audio playback device included in the multi-channel audio system, where the device capability map characterizes an audio playback capability of the audio playback device; The scene template determining module is used for determining a scene template matched with a playing scene to be switched based on the signal state and the characteristic event, wherein the scene template is predefined with a device grouping strategy and audio processing parameters; and the scene mode switching module is used for determining target grouping and audio parameters of the audio playing equipment according to the scene template and combining the equipment capability map, and switching the scene mode of the multi-channel audio system based on the target grouping and the audio parameters of the audio playing equipment.
19. 19. An electronic device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any one of claims 1 to 17 when the computer program is executed.
20. 20. A multi-channel audio system, comprising: A plurality of audio playback devices; the electronic device of claim 19, wherein the electronic device is configured to control the plurality of audio playback devices to switch scene modes of the multi-channel audio system.

Description

Scene mode switching method, device, electronic equipment and system of multichannel audio system Technical Field The present application relates to the field of media system switching technologies, and in particular, to a method, an apparatus, an electronic device, and a system for switching a scene mode of a multichannel audio system. Background In the current home audio technology field, a multi-room/multi-channel audio system can support multiple listening modes such as watching, music, games and the like, and provides a basic sound presentation scheme for different scenes through independent parameter configuration (such as channel grouping, EQ selection, delay adjustment and the like), so that an existing multi-mode audio processing framework is formed. With the continuous improvement of the requirements of users on immersive audio experience and operation convenience, especially in applications of multi-device cooperation and multi-scene fast switching, related audio systems face new challenges in terms of consistency of user experience, operation consistency and system level cooperation. At present, at least the problem of low scene switching efficiency exists in the aspects of multi-mode management and cross-device parameter cooperation of an audio system. Disclosure of Invention In view of the foregoing, it is desirable to provide a scene mode switching method, apparatus, electronic device, and system for a multi-channel audio system that can improve scene switching efficiency. In a first aspect, the present application provides a scene mode switching method of a multi-channel audio system, the method comprising: detecting signal states and characteristic events of an audio input end; determining a device capability spectrum of each audio playback device included in the multi-channel audio system, wherein the device capability spectrum characterizes the audio playback capability of the audio playback device; Determining a scene template matched with a playing scene to be switched based on the signal state and the characteristic event, wherein the scene template is predefined with a device grouping strategy and audio processing parameters; And determining target grouping and audio parameters of the audio playing device according to the scene template and the device energy spectrum, and switching the scene mode of the multi-channel audio system based on the target grouping and the audio parameters of the audio playing device. In one embodiment, detecting a signal state of an audio input includes: The method comprises the steps of detecting the state of at least one interface of a high-definition multimedia interface, an audio return channel and an enhanced audio return channel, and taking the physical link state of at least one interface as the signal state of an audio input end. In one embodiment, detecting a characteristic event includes: detecting at least one of audio stream coding format, number of channels, sampling rate, dynamic range characteristics of the audio input, and/or, Device control instructions received via a consumer electronics control protocol are detected as characteristic events. In one embodiment, the device control instructions include instructions for instructing the television to power on, enter a system audio mode, or identify a source device type, and the method further includes: and under the condition that the equipment control instruction is detected, confirming the triggering condition of scene switching according to the predefined entering time threshold and exiting time threshold. In one embodiment, determining a scene template matching a playback scene to be switched based on the signal state and the feature event includes: applying logic rules predefined by the rules engine to the signal states and feature events; Wherein the logic rules map feature combinations of signal states and/or feature events to corresponding scene templates. In one embodiment, the logic rules are also applied to time information, which is combined mapped with signal states and/or feature events. In one embodiment, the logic rules executed by the rules engine include: Triggering a home theater scene template if the feature event contains a multi-channel coding format; and if the feature event comprises an identification instruction from a preset game host, triggering a game scene template. In one embodiment, the scene template includes: At least one of home theater templates, music appreciation templates, game mode templates, night viewing templates and news broadcasting templates. In one embodiment, the home theater template predefined device consist policy includes selecting a 5.1 channel consist; the predefined audio processing parameters of the home theater template include enabling subwoofers, setting crossover points to 80Hz, and gain boosting the 1kHz to 4kHz band to enhance dialog. In one embodiment, the predefined audio processing parameters of the game mode template include redu