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Voice amplifying method and mobile terminal

A mobile terminal and audio signal technology, which is applied in voice analysis, sub-office voice amplifier, telephone structure, etc., can solve the problems of fixed holding posture and unsatisfactory sound amplification effect, so as to reduce noise interference, improve user experience, The effect of clear audio signal

Inactive Publication Date: 2017-01-25
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a sound amplification method and a mobile terminal, aiming to solve the problem that the holding posture of the existing sound amplification equipment is fixed, and changing the holding posture will lead to unsatisfactory sound amplification effect

Method used

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  • Voice amplifying method and mobile terminal
  • Voice amplifying method and mobile terminal
  • Voice amplifying method and mobile terminal

Examples

Experimental program
Comparison scheme
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no. 1 example

[0030] Such as figure 1 As shown, the embodiments of the present invention provide a method for amplifying sound. The execution subject of the method may be a mobile terminal, such as a smart phone, a tablet computer / PAD, a personal computer, and other devices. The method for amplifying sound includes:

[0031] Step 111: Acquire audio signals received by multiple microphones of the mobile terminal.

[0032] Here, specifically, audio signals received by the earphone microphone of the mobile terminal, the main microphone of the mobile terminal, and the secondary microphone of the mobile terminal may be acquired.

[0033] Step 112: According to the audio information of the audio signal received by each microphone, determine among the plurality of microphones the microphone closest to the sound source as the main microphone.

[0034] Wherein, the above audio information may include: the amplitude, frequency or phase of the audio signal.

[0035] Specifically, such as figure 2 ...

no. 2 example

[0051] Such as Figure 5 As shown, in the sound amplification method of the embodiment of the present invention, the execution subject of the method can be a mobile terminal, such as a smart phone, a tablet computer / PAD, a personal computer and other equipment, including:

[0052] Step 501: Acquire audio signals received by multiple microphones of a mobile terminal.

[0053] Here, specifically, audio signals received by the earphone microphone of the mobile terminal, the main microphone of the mobile terminal, and the secondary microphone of the mobile terminal may be acquired.

[0054] Step 502: According to the audio information of the audio signal received by each microphone, determine among the plurality of microphones the microphone closest to the sound source as the main microphone.

[0055] This step is the same as the above step 112 and will not be repeated this time.

[0056] Step 503: Perform echo cancellation, noise suppression and vocal enhancement processing on ...

no. 3 example

[0076] Such as Figure 7 As shown, the sound amplification method of the embodiment of the present invention includes:

[0077] Step 701: Acquire audio signals received by multiple microphones.

[0078] Step 702: Sampling audio signals received by multiple microphones, and converting the sampled audio signals into digital signals.

[0079] Step 703: Determine the main microphone closest to the sound source according to the amplitude information, frequency information and phase information of the audio signals received by each microphone.

[0080] Step 704: Calculate the distance between the main microphone and the sound source.

[0081] Step 705: Determine whether the distance is smaller than a preset threshold.

[0082] Step 706: If it is greater than or equal to the preset threshold, mute the audio signal received by the main microphone.

[0083] Step 707: If it is less than the preset threshold, perform echo cancellation processing on the audio signal received by the ma...

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Abstract

The invention provides a voice amplifying method and a mobile terminal, and solves the problem of a non-ideal voice amplification effect caused by changing a holding posture, as the holding posture is changeless, of existing voice amplification equipment. The voice amplifying method provided by the invention comprises the following steps: acquiring audio signals received by a plurality of microphones of the mobile terminal; determining the microphone, closest to a voice source, in the plurality of microphones as a primary microphone according to audio information of the audio signals received by each microphone; performing amplification process on the audio signals received by the primary microphone; and outputting amplified audio signals through a loudspeaker. According to embodiments of the invention, when the holding posture of the voice amplification equipment changes, amplification process is performed on the audio signals received by the primary microphone closest to the voice source, so that noise interference is reduced, outputted audio signals are clearer, and user experience of a user is improved.

Description

technical field [0001] The invention relates to the technical field of sound processing, in particular to a sound amplification method and a mobile terminal. Background technique [0002] At present, in many multi-person event scenes, it is difficult for everyone to hear clearly with only human voices. Human voices need to be enlarged. For example, tour guides give explanations to tourists, teachers give classes to students, and people hold meetings together Wait. [0003] In the prior art, human voices are generally amplified through loudspeaker equipment such as microphones or loudspeakers, so that everyone can hear them clearly, and the speaker will not be particularly strenuous. The existing sound amplification equipment only receives the human voice through a single microphone, and amplifies the human voice. The human voice is not processed and the holding posture of the sound amplification equipment remains unchanged, so that when the holding posture is changed, the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/60H04M1/19G10L21/0324G10L21/0216
CPCH04M1/6008G10L21/0216G10L21/0324G10L2021/02166H04M1/19H04M1/6016
Inventor 申厚拯
Owner VIVO MOBILE COMM CO LTD
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