Volume adjustment method and device for electrical equipment, electrical equipment and medium
A technology of electrical equipment and volume adjustment, which is applied in the field of control and can solve problems such as large limitations, complex equipment and algorithms, high requirements for ambient light and detection equipment use angles, and achieve the effect of avoiding volume adjustment
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Embodiment 1
[0026] figure 1 It is a flow chart of a volume adjustment method for electrical equipment provided in Embodiment 1 of the present invention. The method can be executed by a volume adjustment device for electrical equipment. The device can be implemented by software and / or hardware, and the device can be integrated In electrical equipment such as TVs and smart speakers. see figure 1 , the method of this embodiment specifically includes:
[0027] S110. When the electrical equipment plays audio, filter the speaker audio signal in the audio signal received by the microphone to obtain an ambient audio signal.
[0028] When the electrical equipment plays audio, the audio signal received by the microphone of the electrical equipment includes the speaker audio signal emitted by the speaker itself of the electrical equipment, and may also include the ambient audio signal. Wherein, the environmental audio signal may include the voice of the user speaking, the cry of a child, the ring...
Embodiment 2
[0047] figure 2 This is a flowchart of a method for adjusting the volume of electrical equipment provided in the second embodiment of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments, and the acquisition of environmental audio signals and the recognition of telephone ringtones are added, and the The target audio signal of the user in the ambient audio signal is further confirmed. The explanations of the terms that are the same as or corresponding to the above-mentioned embodiments are not repeated here. see figure 2 , the method provided by this embodiment includes:
[0048] S210. When the electrical device plays audio, an inverse audio signal with opposite phase and the same amplitude as the audio signal of the speaker box of the electrical device is generated.
[0049] S220. Determine the delay time of the reverse audio signal according to the distance between the speaker and the microphone.
[0050] Among them, the se...
Embodiment 3
[0069] image 3 This is a structural block diagram of a volume adjustment device for electrical equipment provided in Embodiment 3 of the present invention, the device includes: an ambient audio signal acquisition module 310 , a target audio signal determination module 320 , and a volume adjustment module 330 . in,
[0070] The ambient audio signal acquisition module 310 is used to filter the speaker audio signal in the audio signal received by the microphone during the playback process of the electrical device to obtain the ambient audio signal;
[0071] The target audio signal judgment module 320 is used to analyze the frequency characteristic of the environmental audio signal, and judge whether the target audio signal of the user exists in the environmental audio signal;
[0072] The volume adjustment module 330 is configured to adjust the volume of the electrical device according to the loudness of the target audio signal if the target audio signal exists.
[0073] Accor...
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