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Audio signal generation method and system, and non-transitory computer readable medium

An audio signal and generation system technology, applied in the field of signal processing, can solve problems such as difficult to ensure voice signal

Pending Publication Date: 2022-07-29
SHENZHEN VOXTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to, for example, the performance of the microphone itself, noise, etc., it is sometimes difficult to ensure that the speech signal picked up by the microphone is sufficiently intelligible (i.e., the fidelity of the signal)

Method used

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  • Audio signal generation method and system, and non-transitory computer readable medium
  • Audio signal generation method and system, and non-transitory computer readable medium
  • Audio signal generation method and system, and non-transitory computer readable medium

Examples

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example

[0159] These examples are provided below for illustrative purposes only and are not intended to limit the scope of the present application.

[0160] Example 1 Bone conduction audio data, reconstructed bone conduction audio data, and frequency response curves of the corresponding air conduction audio data.

[0161] like Figure 10 As shown, the curve "m" represents the frequency response curve of the bone conduction audio data, and the curve "n" represents the frequency response curve of the air conduction audio data corresponding to the bone conduction audio data. The bone conduction audio data and the air conduction audio data represent the same speech of the user. Curve "m1" represents the frequency response curve of the reconstructed bone conduction audio data generated by reconstructing the bone conduction audio data using the trained machine learning model according to process 500. like Figure 10 As shown, the frequency response curve "m1" is closer to the frequency r...

example 2

[0162] Example 2 Frequency response curve of bone conduction audio data collected by bone conduction sensors located at different parts of the user's body.

[0163] like Figure 11 As shown, curve "p" represents the frequency response curve of bone conduction audio data collected by a first bone conduction sensor located at the neck of the user's body. Curve "b" represents the frequency response curve of bone conduction audio data acquired by a second bone conduction sensor located at the mastoid process of the user's body. Curve "o" represents the frequency response curve of bone conduction audio data collected by a third bone conduction sensor located in the ear canal (eg, external auditory canal) of the user's body. In some embodiments, the second bone conduction sensor and the third bone conduction sensor have the same configuration as the first bone conduction sensor. The bone conduction audio data collected by the first bone conduction sensor, the second bone conductio...

example 3

[0166] Example 3: Exemplary frequency response curves of bone conduction audio data collected by a bone conduction sensor applying different pressures on the same area of ​​the user's body.

[0167] exist Figure 12 , the curve "L1" represents the frequency response curve of the bone conduction audio data collected when the pressure F1 applied by the bone conduction sensor at the user's tragus is ON. As used herein, the pressure exerted by the bone conduction sensor on the user's body part may also be referred to as the clamping force of the bone conduction sensor or bone conduction device. The curve "L2" represents the frequency response curve of the bone conduction audio data collected when the pressure F2 applied by the bone conduction sensor at the user's tragus is 0.2N. The curve "L3" represents the frequency response curve of the bone conduction audio data collected when the pressure F3 applied by the bone conduction sensor at the user's tragus is 0.4N. The curve "L4" ...

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Abstract

The invention relates to an audio signal generation method and system, and a non-transitory computer readable medium. The audio signal generation method comprises the following steps: acquiring first audio data acquired by a bone conduction sensor; second audio data collected by the gas conduction sensor are obtained, the first audio data and the second audio data represent the voice of the user, and the first audio data and the second audio data are respectively composed of different frequency components; the weight of the first audio data is determined based on the signal-to-noise ratio of the second audio data, the weight of the second audio data is determined based on the weight of the first audio data, and the larger the signal-to-noise ratio of the second audio data is, the lower the weight of the first audio data is; and weighting the first audio data and the second audio data by using the weight of the first audio data and the weight of the second audio data respectively to determine target audio data.

Description

[0001] This application is a divisional application of the Chinese patent application filed on September 12, 2019 with the application number CN201910864002.8 and the invention title is "System and Method for Audio Signal Generation". technical field [0002] The present application generally relates to the field of signal processing, and in particular, to a method and system for generating audio signals, and a non-transitory computer-readable medium. Background technique [0003] With the widespread use of electronic devices, communication between people has become more and more convenient. When using an electronic device for communication, the user can rely on a microphone to capture voice signals as the user speaks. The voice signal collected by the microphone may represent the user's voice. However, due to, for example, the performance of the microphone itself, noise, etc., it is sometimes difficult to ensure that the speech signal captured by the microphone is sufficie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L19/02G10L25/30
CPCG10L19/02G10L25/30
Inventor 周美林廖风云齐心
Owner SHENZHEN VOXTECH CO LTD