Hearing aid devices
The present disclosure discloses a hearing aid device. The hearing aid device may comprise at least one sound transmitter configured to collect a sound signal and convert the sound signal into an electrical signal, a signal processing circuit configured to generate a control signal by processing the electrical signal, at least one vibration loudspeaker configured to convert the control signal into a vibration signal, and a housing structure configured to accommodate at least one of the at least one sound transmitter, the signal processing circuit, or the at least one vibration loudspeaker, wherein the control signal may include an original signal and an air-conducted sound leakage signal generated from the at least one vibration loudspeaker, and a difference between the air-conducted sound leakage signal received by the at least one sound transmitter and the original signal may not be larger than −33 dB.
1. A hearing aid device, comprising:
a signal processing circuit configured to generate a control signal; and
at least one vibration loudspeaker configured to convert the control signal into a vibration signal, wherein the control signal includes an original signal and an air-conducted sound leakage signal, the air-conducted sound leakage signal is generated from the at least one vibration loudspeaker, and a value of the air-conducted sound leakage signal is different from a value of the original signal.
2. The hearing aid device of claim 1 , further comprising:
at least one sound transmitter configured to collect a sound signal and the air-conducted sound leakage signal, and convert the collected signal into an electrical signal, wherein the control signal is generated by processing the electrical signal.
3. The hearing aid device of claim 2 , further comprising:
a housing structure configured to accommodate at least one of: the at least one sound transmitter, the signal processing circuit, or the at least one vibration loudspeaker.
4. The hearing aid device of claim 1 , wherein a difference between the air-conducted sound leakage signal and the original signal is not larger than −33 dB.
5. The hearing aid device of claim 1 , wherein in a frequency range of 100 Hz-2000 Hz, a difference between the air-conducted sound leakage signal and the original signal is not larger than −40 dB.
6. The hearing aid device of claim 1 , wherein in a frequency range of 2000 Hz-8000 Hz, a difference between the air-conducted sound leakage signal and the original signal is not larger than −33 dB.
7. The hearing aid device of claim 2 , wherein a distance between any one of the at least one sound transmitter and any one of the at least one vibration loudspeaker is not less than 7 mm.
8. The hearing aid device of claim 2 , wherein the at least one sound transmitter and the at least one vibration loudspeaker are arranged on a same side of an auricle of a user.
9. The hearing aid device of claim 2 , wherein the at least one sound transmitter and the at least one vibration loudspeaker are arranged on a different sides of an auricle of a user.
10. The hearing aid device of claim 3 , wherein a baffle structure is arranged between the at least one sound transmitter and the at least one vibration loudspeaker, and the baffle structure is connected to the housing structure.
11. The hearing aid device of claim 3 , wherein the at least one vibration loudspeaker includes a first housing structure connected to the housing structure.
12. The hearing aid device of claim 11 , wherein the first housing structure includes at least one hole, and the at least one hole is in communication with an inside of the first housing structure.
13. The hearing aid device of claim 12 , wherein the at least one hole is arranged on a bottom side wall of the first housing structure of the at least one vibration loudspeaker, the bottom side wall facing the at least one sound transmitter and the at least one vibration loudspeaker.
14. The hearing aid device of claim 12 , wherein the at least one hole is arranged on a side wall of the first housing structure of the at least one vibration loudspeaker, the side wall facing away from the at least one sound transmitter.
15. The hearing aid device of claim 14 , wherein the at least one hole is arranged on a bottom side wall of the first housing structure of the at least one vibration loudspeaker.
16. The hearing aid device of claim 15 , wherein the at least one hole is arranged on a side wall of the first housing structure of the at least one vibration loudspeaker, the side wall facing the at least one sound transmitter.
17. The hearing aid device of claim 12 , wherein a mesh structure is arranged on the at least one hole, and the mesh structure covers the at least one hole.
18. The hearing aid device of claim 17 , wherein an acoustic impedance of the mesh structure is not larger than 260 MKS Rayls.
19. The hearing aid device of claim 1 , further comprising a power amplifier, wherein the power amplifier is configured to amplify an amplitude of the control signal.
20. The hearing aid device of claim 1 , wherein a vibration loudspeaker of the at least one vibration loudspeaker includes:
a vibration component, wherein the vibration component is electrically connected to the signal processing circuit and is configured to receive the control signal and generate bone-conducted sound waves based on the control signal.