Hi-Fi mode control method and device

Abstract

The invention discloses a Hi-Fi mode control method and device, which are applied to a multi-channel Soundbar system comprising a left channel, a right channel, a bass channel and at least one non-main channel, and comprises the following steps: when a Hi-Fi mode switching instruction triggered by a user is received, controlling the Soundbar to only start the left channel, the right channel and the bass channel to output audio signals, closing the audio output of the at least one non-main sound channel; in the Hi-Fi mode, performing high-fidelity processing on audio signals of a left sound channel and a right sound channel so as to maintain sound image positioning and sound purity of stereophonic sound; independent low-frequency enhancement processing is performed on a bass channel to improve the low-frequency performance of music playing. The invention provides a Hi-Fi mode control method, and solves the technical problem that a cinema and Hi-Fi cannot be considered in the prior art.

Description

Technical Field

[0001] This invention relates to the field of audio equipment technology, and in particular to a Hi-Fi mode control method and device. Background Technology

[0002] With the development of home entertainment equipment, soundbars have gradually become an important part of home theater systems due to their advantages such as small size, easy installation, and wide sound field coverage. Most existing soundbars adopt a multi-channel structure, such as 5.1, 7.1.4, and 9.1.4, to meet the needs of immersive sound effects in movies, games, and other media. At the same time, manufacturers typically incorporate various EQ (Equalizer) modes into soundbars, such as movie mode, music mode, vocal mode, sports mode, game mode, and night mode, to adapt to different usage scenarios.

[0003] However, in existing technologies, the aforementioned modes are all based on multi-channel collaborative sound production. Regardless of the sound effect mode, all or most channels of the system participate in the sound output, changing the sound style through gain adjustment of different frequency bands and sound field expansion algorithms. While this method can enhance the immersive experience of multi-channel audio, it is not suitable for the high-fidelity playback requirements of pure music.

[0004] For example, in music appreciation or quiet environments, users often desire a listening experience similar to that of a traditional two-channel Hi-Fi audio system—that is, focused, pure, and precise stereo sound image positioning. However, because multi-channel soundbars inherently contain multiple sound units radiating from different directions, these additional channels can interfere with stereo reproduction when playing music, resulting in less focused sound image positioning, reduced sound purity, and difficulty in simulating the listening experience of a traditional two-channel audio system.

[0005] Current technology lacks a solution that can simultaneously provide both a "multi-channel immersive home theater experience" and a "high-fidelity two-channel music experience" within the same soundbar. Therefore, there is an urgent need for a new channel control method that can shut down unnecessary channels when needed, making the soundbar's output closer to that of a traditional two-channel Hi-Fi system, thereby improving the purity and realism of the music experience.

[0006] Based on this, the present invention proposes a Hi-Fi mode control method and device for a soundbar. By selectively starting and stopping each channel and performing differentiated signal processing, high-fidelity stereo playback in multi-channel devices can be achieved, resolving the technical contradiction that existing technologies cannot simultaneously cater to both cinema and Hi-Fi needs. Summary of the Invention

[0007] The purpose of this invention is to provide a Hi-Fi mode control method, which aims to solve the technical problem that existing technologies cannot simultaneously support cinema and Hi-Fi.

[0008] The technical solution adopted in the Hi-Fi mode control method disclosed in this invention is: A Hi-Fi mode control method, applied to a multi-channel soundbar system including a left channel, a right channel, a bass channel, and at least one non-master channel (including a center channel, surround channels, and a top channel), characterized in that it includes: When a Hi-Fi mode switching command is received from the user, the Soundbar is controlled to only enable the left, right, and bass channels to output audio signals, and the audio output of at least one non-master channel is turned off. In the Hi-Fi mode, high-fidelity processing is performed on the audio signals of the left and right channels to maintain stereo imaging and sound purity. Independent low-frequency enhancement processing is performed on the bass channel to improve the low-frequency performance of music playback.

[0009] Optionally, the high-fidelity processing includes at least one of the following: frequency filtering, phase optimization, harmonic distortion control, and dynamic range optimization.

[0010] Optionally, shutting down non-main channels includes setting the outputs of the center channel, surround channels, rear channels, and top channels to mute or disconnecting the corresponding amplifier units.

[0011] Optionally, the low-frequency processing of the bass channel includes at least one of low-frequency enhancement, crossover filtering, phase calibration, or power limiting control.

[0012] Optionally, the Hi-Fi mode can be switched via a remote control, a mobile application, or the control panel of the device itself.

[0013] Optionally, when entering Hi-Fi mode, the system automatically disables multi-channel virtual processing algorithms, including virtual surround, sound field expansion, and reverberation enhancement.

[0014] Optionally, the method is applicable to soundbar systems with 5.1, 7.1.4, 9.1.4 or more channel structures.

[0015] Optionally, in Hi-Fi mode, the bass channel can be further disabled, retaining only the left and right channels to simulate a traditional two-channel audio system. Optionally, a Hi-Fi mode control method is provided, wherein the system can enable a lightweight virtual surround compensation algorithm in Hi-Fi mode to increase a slight sense of space while maintaining high-fidelity playback.

[0016] Second aspect A Hi-Fi mode control device, comprising: The mode control module is used to detect and respond to user input Hi-Fi mode switching commands; The channel management module is used to enable the left, right, and bass channels and disable at least one non-master channel after entering Hi-Fi mode. The audio processing module is used to perform high-fidelity audio processing on the left and right channels in Hi-Fi mode, and low-frequency processing on the bass channel.

[0017] The beneficial effects of the Hi-Fi mode control method disclosed in this invention are: Automated Hi-Fi sound field switching: By reducing interference from redundant channels, the sound field becomes closer to that of a traditional two-channel Hi-Fi speaker, resulting in more accurate sound image positioning; Reduce sound field mixing: Surround channels and top channels no longer emit sound simultaneously, effectively avoiding the blurred sound caused by sound source diffusion; Achieving a "Hi-Fi dedicated sound field" in a multi-channel structure: retaining the home theater capabilities of a soundbar while providing additional high-fidelity music performance, thus enhancing the device's value in various usage scenarios. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the multi-channel soundbar system in this invention; Figure 2 This is a schematic diagram illustrating an application scenario of the Hi-Fi mode control method of the present invention; Figure 3 This is a flowchart of a Hi-Fi mode control method according to the present invention; Figure 4 This is a structural block diagram of a Hi-Fi mode control device according to the present invention.

[0019] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0020] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings. It should also be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0021] It should be noted that embodiments referred to in the specification as "an embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," etc., may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0022] Generally, terms can be understood at least partially from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or property in a singular sense, or can be used to describe a combination of features, structures, or properties in a plural sense. Additionally... In addition, the term “based on” can be understood as not necessarily intended to convey an exclusive set of factors, but rather, alternatively, at least in part depending on the context, allowing for the presence of other factors that are not necessarily explicitly described.

[0023] It is understood that the meanings of “on”, “above” and “above” in this disclosure should be interpreted in the broadest sense, such that “on” means not only “directly on” something, but also includes something with an intermediary feature or layer, and that “above” or “above” means not only “on” something, but also includes something “above” or “above” without an intermediary feature or layer.

[0024] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly. Example

[0025] This embodiment provides a Hi-Fi mode control method applied to a multi-channel soundbar system.

[0026] like Figure 1 As shown, the soundbar system includes a left channel, a right channel, a subwoofer channel, and at least one non-main channel, which includes a center channel, surround channels, and a top channel. Each of these channels has its own independent amplifier unit and speaker unit, and all channels are managed uniformly by the audio processing unit within the system.

[0027] like Figure 2 As shown, the soundbar system is positioned below the display device and, together with external subwoofers and surround speakers, forms a multi-channel playback environment. In this application scenario, the soundbar is used for both multi-channel audio-visual playback and music playback, with the system adjusting to different playback needs through mode switching.

[0028] like Figure 3 As shown, the Hi-Fi mode control method proposed in this invention includes steps S301 to S306.

[0029] Step S301: The system receives a Hi-Fi mode switching command input by the user.

[0030] During system operation, the soundbar operates in multi-channel mode, used to play multi-channel audio content such as movies and games. The system receives Hi-Fi mode switching commands from the user via remote control, mobile application, or the device's control panel.

[0031] Step S302: After detecting the Hi-Fi mode switching command, the system enters Hi-Fi mode.

[0032] After entering Hi-Fi mode, the system adjusts the channel output status of the soundbar and the audio processing flow.

[0033] Step S303: In Hi-Fi mode, enable the left channel, right channel and bass channel to participate in audio output.

[0034] After entering Hi-Fi mode, the channel management module configures the output status of each channel, keeping only the left channel, right channel, and bass channel in the output state.

[0035] Step S304: Turn off the audio output of at least one non-master channel.

[0036] After configuring the left, right, and bass channels, the system disables the audio output of at least one non-master channel. In this embodiment, disabling a non-master channel involves either setting the output of the corresponding channel to a mute state or disconnecting the drive signal of the amplifier unit corresponding to that channel, thereby preventing the center channel, surround channels, rear channels, and top channel from outputting audio signals.

[0037] Step S305: Perform high-fidelity processing on the audio signals of the left and right channels.

[0038] In Hi-Fi mode, the audio processing module performs high-fidelity processing only on the left and right channel audio signals. This high-fidelity processing includes, but is not limited to, frequency filtering, phase optimization, harmonic distortion control, and dynamic range optimization of the audio signals.

[0039] Step S306: Perform low-frequency processing on the audio signal of the bass channel.

[0040] Meanwhile, the audio processing module performs independent low-frequency processing on the audio signal of the bass channel. This low-frequency processing includes at least one of low-frequency enhancement, crossover filtering, phase calibration, or power limiting control.

[0041] In this embodiment, when the system enters Hi-Fi mode, the audio processing module automatically disables the multi-channel virtual processing algorithm. The multi-channel virtual processing algorithm includes virtual surround processing, sound field expansion processing, and reverberation enhancement processing, among others.

[0042] The Hi-Fi mode is applicable to soundbar systems with various channel configurations, including 5.1, 7.1.4, 9.1.4, and more. Regardless of the channel configuration, the system follows the steps described above, enabling only the left, right, and bass channels while keeping the other channels off.

[0043] In another implementation, the system can enable a lightweight virtual surround compensation algorithm in Hi-Fi mode to perform limited compensation processing on the audio signals of the left and right channels. In a further implementation, in Hi-Fi mode, the system can further disable the subwoofer channel according to user settings, retaining only the left and right channels for audio output, thereby simulating the operation of a traditional two-channel Hi-Fi audio system.

[0044] In another embodiment, the system can enable a lightweight virtual surround compensation algorithm in Hi-Fi mode. This algorithm, while maintaining the stereo structure of the left and right channels, performs limited compensation on the sound image edges to introduce a slight sense of space without compromising high-fidelity playback characteristics.

[0045] This invention provides a Hi-Fi mode control method that enables automated Hi-Fi sound field switching: by reducing interference from redundant channels, the sound field becomes closer to that of a traditional two-channel Hi-Fi speaker, resulting in more accurate sound image positioning; it reduces sound field mixing: surround channels and top channels no longer emit sound simultaneously, effectively avoiding the blurred listening experience caused by sound source diffusion; and it achieves a "Hi-Fi dedicated sound field" in a multi-channel structure: retaining the home theater capabilities of a soundbar while providing additional high-fidelity music performance, thus enhancing the device's value in various usage scenarios. Example

[0046] like Figure 4 As shown, this embodiment provides a Hi-Fi mode control device, which is integrated into a multi-channel soundbar system and is used to execute the Hi-Fi mode control method described in Embodiment 1.

[0047] The Hi-Fi mode control device includes a mode control module, a channel management module, and an audio processing module.

[0048] The mode control module is used to detect and respond to user-input Hi-Fi mode switching commands. This module is connected to the remote control receiver, mobile application communication module, or the device's control panel to acquire user mode switching commands.

[0049] The channel management module connects to the corresponding power amplifier unit for each channel. It is used to enable the left, right, and subwoofer channels and disable at least one non-master channel after entering Hi-Fi mode. The channel management module manages the output status of each channel by controlling the enable state of the power amplifier unit or the audio output channel.

[0050] The audio processing module works in conjunction with the channel management module to perform high-fidelity audio processing on the left and right channels in Hi-Fi mode, and low-frequency processing on the bass channel. Internally, the audio processing module may include a digital signal processor for performing operations such as frequency filtering, phase calibration, and dynamic range control.

[0051] Through the above structural setup, the multi-channel soundbar system can retain the original home theater functions while also having the ability to play audio in Hi-Fi mode with two channels as the core.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A Hi-Fi mode control method, characterized in that, A multi-channel soundbar system comprising a left channel, a right channel, a bass channel, and at least one non-master channel (including a center channel, surround channels, and a top channel), characterized in that it includes: When a Hi-Fi mode switching command is received from the user, the Soundbar is controlled to only enable the left, right, and bass channels to output audio signals, and the audio output of at least one non-master channel is turned off. In the Hi-Fi mode, high-fidelity processing is performed on the audio signals of the left and right channels to maintain stereo imaging and sound purity. Independent low-frequency enhancement processing is performed on the bass channel to improve the low-frequency performance of music playback.

2. The Hi-Fi mode control method as described in claim 1, characterized in that, The high-fidelity processing includes at least one of the following: frequency filtering, phase optimization, harmonic distortion control, and dynamic range optimization.

3. The Hi-Fi mode control method as described in claim 2, characterized in that, The process of shutting down non-main channels includes setting the outputs of the center channel, surround channels, rear channels, and top channels to mute or disconnecting the corresponding amplifier units.

4. The Hi-Fi mode control method as described in claim 3, characterized in that, The low-frequency processing of the bass channel includes at least one of low-frequency enhancement, crossover filtering, phase calibration, or power limiting control.

5. The Hi-Fi mode control method as described in claim 4, characterized in that, The Hi-Fi mode can be switched via remote control, mobile application, or the control panel of the device itself.

6. The Hi-Fi mode control method as described in claim 5, characterized in that, When entering Hi-Fi mode, the system automatically disables multi-channel virtual processing algorithms, including virtual surround, sound field expansion, and reverberation enhancement.

7. A Hi-Fi mode control method as described in claim 6, characterized in that, The method is applicable to soundbar systems with 5.1, 7.1.4, 9.1.4 or more channel configurations.

8. The Hi-Fi mode control method as described in claim 7, characterized in that, In Hi-Fi mode, the bass channel can be further disabled, leaving only the left and right channels to simulate a traditional two-channel audio system.

9. A Hi-Fi mode control method as described in claim 8, characterized in that, The system can enable a lightweight virtual surround compensation algorithm in Hi-Fi mode to increase a slight sense of space while maintaining high-fidelity playback.

10. A Hi-Fi mode control device, characterized in that, include: The mode control module is used to detect and respond to user input Hi-Fi mode switching commands; The channel management module is used to enable the left, right, and bass channels and disable at least one non-master channel after entering Hi-Fi mode. The audio processing module is used to perform high-fidelity audio processing on the left and right channels in Hi-Fi mode, and low-frequency processing on the bass channel.

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