Bone conduction headset and audio processing method thereof
A bone conduction earphone and bone conduction vibrator technology, which is applied to bone conduction transducer hearing equipment, earpiece/earphone accessories, sensors, etc., can solve problems such as poor bone conduction earphones, bone conduction sound leakage, and users can't hear the earphones. , to achieve the effect of reducing manufacturing costs, preventing sound leakage, and simplifying circuit complexity
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Embodiment 1
[0047] In the process of using bone conduction headphones, different users have different thicknesses of human tissue, which leads to different problems in the experience of bone conduction headphones, especially the problem of different loudness felt by the auditory nerve. Moreover, it should be noted that human bones and tissues will produce frequency-selective amplitude attenuation and delay to vibration signals. Therefore, it is difficult for high-fidelity or broadband audio signals to reach the auditory nerve through bone conduction. In the case of narrowband audio signals in the prior art, this frequency selective attenuation problem can be solved by providing more audio signal headroom (more power or louder volume) through the sound source, or choosing the best propagation path or skin contact position to solve. However, this method works poorly and causes secondary problems. For example, higher power will increase battery energy loss and affect standby time. At the sa...
Embodiment 2
[0071] In all bone conduction technologies, audio is achieved by transmitting vibration signals through the bone (solid). That is to say, as long as the solid is in contact with the vibration direction, the sound can be transmitted. Therefore, in the design process of bone conduction earphones, because the structure of the fixed bone conduction vibrator is made of solid, it will also transmit vibrations, and even drive the surrounding air to generate secondary vibrations, which will eventually cause sound leakage. Therefore, many existing technologies believe that sound leakage is a problem that is difficult to avoid and solve in bone conduction. Existing technologies have been dedicated to optimizing the generation, control and elimination of bone conduction vibrations. However, all solid vibrations will produce sound. If there is no vibration, there will be no sound transmission, and bone conduction technology cannot be realized. Therefore, the present invention innovates ...
Embodiment 3
[0089]In the prior art, all rear-mounted bone conduction earphone frames need to be tightly attached to human bones and tissues, and form a certain pressure to ensure that the bone conduction vibrator can effectively transmit audio signals through vibration. However, this structure has an obvious defect, that is, the closely fitting earphone frame will form a serious conflict with the spectacle frame of the user wearing glasses. Bone conduction headphones already take up the space where eyeglass frames sit, especially the space needed by the temples. This often results in serious inconvenience to users who wear glasses wanting to wear prior art bone conduction headphones. Either the unreasonable wearing of the bone conduction earphones leads to a poor user experience of the earphones, or the unreasonable wearing of the glasses, which may bring the risk of falling off at the same time for the user, especially when wearing glasses and earphones for sports, neither of which can b...
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