CN-122002180-A - Signal processing method and system

Abstract

A signal processing method and system are disclosed, relating to the media field. The method comprises the steps that the audio equipment modulates an audio signal in an audible range to be output to an ultrasonic range, and outputs a signal in the ultrasonic range. The hearing aid receives the signal in the ultrasonic range, demodulates the signal in the ultrasonic range to the audible range, and outputs a signal in the audible range from the signal in the ultrasonic range. The ultrasonic wave frequency is high, directivity is strong, loss is little in the transmission process, the signal in the ultrasonic wave range is transmitted, the damage degree of the signal received by the hearing aid is reduced, and the hearing aid outputs the signal in the audible range according to the signal in the ultrasonic wave range, so that the problems of poor tone quality and reverberation of sound heard by a user wearing the hearing aid are solved under the condition that extra power consumption and time delay are not introduced, and the listening experience of the user wearing the hearing aid is improved.

Inventors

• SHI DONG
• GUO ZHONGCUN
• TAN LIJUAN
• ZHONG LILI

Assignees

• 华为技术有限公司

Dates

Publication Date

20260508

Application Date

20241104

Claims (10)

1. 1. A signal processing method for use in a hearing aid, the method comprising: Receiving a first signal output by a broadcasting device outside the hearing aid, wherein the first signal is in an ultrasonic range; And outputting the second signal processed by the first signal to a user, wherein the second signal is in an audible range, and the audio content of the second signal is the same as the audio content of the first signal.
2. 2. The method according to claim 1, wherein the method further comprises: and receiving a third signal output by a broadcasting device outside the hearing aid, wherein the third signal is in an audible range, and the audio content of the third signal is the same as the audio content of the first signal.
3. 3. The method according to claim 2, wherein the method further comprises: And eliminating the third signal according to the second signal.
4. 4. A method according to any one of claims 1-3, characterized in that the method further comprises: a broadcasting device external to the hearing aid is instructed to output signals in a first output mode or a second output mode, wherein the first output mode instructs to output only signals in the ultrasonic range, and the second output mode instructs to output signals in the ultrasonic range and signals in the audible range.
5. 5. The method according to any one of claims 1-4, further comprising: And receiving an external signal, and outputting the external signal to the user, wherein the audio content of the external signal is different from that of the second signal.
6. 6. A signal processing method for use in an audio device, the method comprising: Modulating an audio signal to be output into a first signal, wherein the audio signal is in an audible range, the first signal is in an ultrasonic range, and the audio content of the audio signal is identical to the audio content of the first signal; outputting the first signal.
7. 7. The method of claim 6, wherein the method further comprises: displaying a first output mode and a second output mode; outputting the first signal, comprising: And receiving the selection operation of the first output mode and outputting the first signal.
8. 8. The method according to claim 6 or 7, characterized in that the method further comprises: displaying a first output mode and a second output mode; outputting the first signal, comprising: And receiving a selection operation of the second output mode, and outputting the first signal and the audio signal.
9. 9. The method of any of claims 6-8, wherein outputting the first signal comprises: outputting the first signal according to the indication of the hearing aid.
10. 10. A signal processing system, characterized in that the signal processing system comprises an audio device for performing the method according to any of claims 1-5 and a hearing aid for performing the method according to any of claims 6-9.

Description

Signal processing method and system Technical Field The present application relates to the field of media, and in particular, to a signal processing method and system. Background Reverberation may occur during sound propagation due to reflections from the walls of the room. In addition, under the poor condition of loudspeaker quality, loudspeaker is difficult to broadcast the sound of low frequency, leads to wearing hearing aid's user's sense of hearing relatively poor, has influenced user's listening experience. Disclosure of Invention The application provides a signal processing method and a signal processing system, which can effectively improve the hearing feeling of a user wearing a hearing aid. In a first aspect, a signal processing method is provided for a hearing aid, the method comprising receiving a first signal output by a broadcasting device external to the hearing aid, and outputting a second signal after the first signal processing to a user. Wherein the first signal is in the ultrasonic range. The second signal is in the audible range. The audio content of the second signal is the same as the audio content of the first signal. The ultrasonic wave frequency is high, directivity is strong, loss is little in the transmission process, the signal in the ultrasonic wave range is transmitted, the damage degree of the signal received by the hearing aid is reduced, and the hearing aid outputs the signal in the audible range according to the signal in the ultrasonic wave range, so that the problems of poor tone quality and reverberation of sound heard by a user wearing the hearing aid are solved under the condition that extra power consumption and time delay are not introduced, and the listening experience of the user wearing the hearing aid is improved. In one possible implementation, outputting the second signal includes demodulating the first signal and outputting the second signal. Therefore, the signal in the ultrasonic range is demodulated to the audible range, the signal in the audible range is obtained by outputting the signal in the ultrasonic range, and the hearing experience of a user wearing the hearing aid is improved. In another possible implementation the method further comprises receiving a third signal output by a broadcaster external to the hearing aid, the third signal being in the audible range, the audio content of the third signal being identical to the audio content of the first signal. In another possible implementation, the method further comprises cancelling the third signal from the second signal. The method has the advantages that signals with the same audio content in the audible range and received by the hearing aid are eliminated, the hearing aid is prevented from outputting two sounds with the same audio content, the hearing aid outputs clean and undisturbed sounds, the tone quality is improved, and the hearing feeling of a user wearing the hearing aid is improved. In another possible implementation the method further comprises instructing a broadcaster external to the hearing aid to output a signal in a first output mode. Wherein the first output mode indicates that only signals in the ultrasonic range are output. The hearing aid only receives signals in the ultrasonic range output by the broadcasting device outside the hearing aid, does not receive signals with the same audio content in the audible range, avoids the hearing aid from outputting two sounds with the same audio content, enables the hearing aid to output clean and undisturbed sounds, improves the tone quality, and improves the hearing feeling of a user wearing the hearing aid. In another possible implementation the method further comprises instructing a broadcaster external to the hearing aid to output a signal in a second output mode. Wherein the second output mode indicates outputting a signal in the ultrasonic range and a signal in the audible range. In another possible implementation, the method further comprises receiving an external signal and outputting the external signal to the user, the audio content of the external signal being different from the audio content of the second signal. The hearing aid can also receive other sounds, so that under the condition that the hearing aid outputs the sounds of the audio equipment, the hearing aid also outputs other sounds, the hearing feeling of a user wearing the hearing aid is more real, and the hearing experience of the user wearing the hearing aid is improved. In a second aspect, a signal processing method is provided for an audio device, the method comprising modulating an audio signal to be output into a first signal and outputting the first signal. Wherein the audio signal is in the audible range and the first signal is in the ultrasonic range, the audio content of the audio signal being the same as the audio content of the first signal. Because the frequency of the ultrasonic wave is high, the directivity is strong, the loss in the transmission proces