Sound masking method and apparatus, and terminal device
AssigneeHuawei Technologies Co., Ltd.
InventorsXiangao Song, Rongrong Wu, Jiahe Liu, Junping Gao
Life of this patent
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Abstract
This application discloses a sound masking method and apparatus, and a terminal device. When the terminal device uses a receiver as an output end of an audio signal, the terminal device determines, based on the audio signal, a masking sound signal, and then transmits the masking sound signal by using a speaker. The masking sound signal is determined based on the audio signal, and a difference between a distance from the speaker to a far field and a distance from the receiver to the far field is small. Therefore, the masking sound signal can better mask a leaked sound of the receiver and prevent information leakage in a call sound.
Claims20
A sound masking method, comprising:
- when a terminal device uses a receiver of the terminal device as an output end of an audio signal, determining, based on the audio signal, a masking sound signal;
- and
- transmitting, by a speaker of the terminal device, the masking sound signal, wherein the masking sound signal is used to mask the audio signal output by the receiver from a far field, wherein the determining, based on the audio signal, a masking sound signal comprises:
- selecting or matching, based on the audio signal, a corresponding masking sound signal from a pre-generated audio library.
A terminal device, comprising a receiver, a speaker, and a processor, wherein
- the processor is configured to:
- when the receiver outputs an audio signal, determine or generate a masking sound signal based on the audio signal;
- select or match a corresponding masking sound signal from a pre-generated audio library based on the audio signal when the receiver outputs the audio signal;
- and
- the speaker is configured to transmit the masking sound signal, to mask the audio signal output by the receiver from a far field.
A sound masking method, comprising:
- when a terminal device uses a receiver of the terminal device as an output end of an audio signal, determining, based on the audio signal, a masking sound signal;
- and
- transmitting, by a speaker of the terminal device, the masking sound signal, wherein the masking sound signal is used to mask the audio signal output by the receiver from a far field, wherein the transmitting, by the speaker, the masking sound signal comprises:
- when a downlink audio signal is detected, and it is determined that an amplitude of the downlink audio signal is greater than a second preset threshold, sending the masking sound signal by using the speaker.
Dependencies are inferred from the claim text.