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:
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 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 received by the at least one sound transmitter, and a difference between the air-conducted sound leakage signal and the original signal is not larger than −33 dB.
2. The hearing aid device of claim 1 , wherein in a frequency range of 100 Hz-2000 Hz, the difference between the air-conducted sound leakage signal and the original signal is not larger than −40 dB.
3. The hearing aid device of claim 1 , wherein in a frequency range of 100 Hz-2000 Hz, the difference between the air-conducted sound leakage signal and the original signal is not larger than −45 dB.
4. The hearing aid device of claim 1 , wherein in a frequency range of 2000 Hz-8000 Hz, the 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 2000 Hz-8000 Hz, the difference between the air-conducted sound leakage signal and the original signal is not larger than −38 dB.
6. The hearing aid device of claim 1 , 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.
7. The hearing aid device of claim 1 , 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 20 mm.
8. The hearing aid device of claim 1 , 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 36 mm.
9. The hearing aid device of claim 1 , 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 45 mm.
10. The hearing aid device of claim 1 , wherein the at least one sound transmitter and the at least one vibration loudspeaker are arranged on a same side or different sides of an auricle of a user.
11. The hearing aid device of claim 1 , 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.
12. The hearing aid device of claim 1 , wherein the vibration loudspeaker includes a first housing structure connected to the housing structure, 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 17 , wherein an acoustic impedance of the mesh structure is not larger than 160 MKS Rayls.
20. The hearing aid device of claim 17 , wherein an acoustic impedance of the mesh structure is not larger than 145 MKS Rayls.