Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Audio output control method, audio output control device, and audio playing device

A technology of audio output and control method, applied in the field of audio playback equipment and audio output control, can solve the problems of large size and high implementation cost of portable equipment

Inactive Publication Date: 2016-11-30
VIVO MOBILE COMM CO LTD
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an audio output control method, device, and audio playback device to solve the problem that the existing method of increasing low frequency will lead to a larger size of the portable device, and at the same time cause a higher cost of implementation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Audio output control method, audio output control device, and audio playing device
  • Audio output control method, audio output control device, and audio playing device
  • Audio output control method, audio output control device, and audio playing device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0026] like figure 1 As shown, the audio output control method of the embodiment of the present invention includes:

[0027] Step 11, acquiring the first audio signal of the first channel and the second audio signal of the second channel.

[0028] It should be noted that, in order to achieve the stereo playback effect of audio, most audio playback devices use left and right channels to play audio. In this embodiment, the first channel is the left channel, and the second channel is the right channel. .

[0029] Step 12: Perform filtering processing on the first audio signal to obtain a first low-frequency signal and a first mid-high frequency signal respectively, and perform filtering processing on the second audio signal to obtain a second low-frequency signal and a second mid-high frequency signal respectively Signal.

[0030] It should be noted that, since the embodiment of the invention mainly realizes enhancing the low-frequency effect of playing audio, so in step 12, i...

no. 2 example

[0036] like figure 2 As shown, the audio output control method of the embodiment of the present invention includes:

[0037] Step 21, acquiring a first audio signal of a first channel and a second audio signal of a second channel.

[0038] It should be noted that, in order to achieve the stereo playback effect of audio, most audio playback devices use left and right channels to play audio. In this embodiment, the first channel is the left channel, and the second channel is the right channel. .

[0039] Step 22: Perform filtering processing on the first audio signal to obtain a first low-frequency signal and a first mid-high frequency signal respectively, and perform filtering processing on the second audio signal to obtain a second low-frequency signal and a second mid-high frequency signal respectively Signal.

[0040] It should be noted that, since the embodiment of the invention mainly realizes enhancing the low-frequency effect of playing audio, so in step 22, it is ne...

no. 3 example

[0055] like Figure 4 and Figure 5 As shown, the audio output control device of the embodiment of the present invention includes:

[0056] An acquisition module 41, configured to acquire the first audio signal of the first channel and the second audio signal of the second channel;

[0057] The first processing module 42 is configured to perform filtering processing on the first audio signal to obtain a first low-frequency signal and a first mid-high frequency signal respectively, and to perform filtering processing on the second audio signal to obtain a second low-frequency signal respectively and a second mid-high frequency signal;

[0058] A superposition module 43, configured to superimpose the first low-frequency signal and the second low-frequency signal to obtain a third audio signal;

[0059] A mixing module 44, configured to mix the third audio signal with the first mid-high frequency signal to obtain the first audio output signal of the first channel, and mix the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides an audio output control method, device and audio playback device. The audio output control method includes: acquiring a first audio signal of a first channel and a second audio signal of a second channel; The audio signal is filtered to obtain a first low frequency signal and a first medium and high frequency signal, respectively, and the second audio signal is filtered to obtain a second low frequency signal and a second medium and high frequency signal respectively; The low-frequency signal is superimposed to obtain a third audio signal; the third audio signal is mixed with the first medium and high frequency signal to obtain the first audio output signal of the first channel, and the third audio signal and the second medium and high frequency signal are mixed. Mixing is performed to obtain the second audio output signal of the second channel. The solution enhances the low-frequency effect of the channel, and at the same time, the method for enhancing the low-frequency sound effect does not change the existing structure of the device and reduces the implementation cost.

Description

technical field [0001] The present invention relates to the technical field of audio processing, in particular to an audio output control method, device and audio playback equipment. Background technique [0002] At present, mobile terminals and portable speakers using dual speakers are becoming more and more popular. People download stereo sound sources from the Internet and use playback devices to play them to obtain stereo effects, but the same stereo effects do not have the effect of playing from headphones or professional audio equipment. Shocking, the main reason is that the size of portable devices and small stereo speakers is small, the low-frequency sensitivity is insufficient, and the low-frequency part cannot be effectively restored. Therefore, if you want to improve the stereo effect, you need to improve the stereo low-frequency playback effect. [0003] At present, the most effective way to increase the low frequency is to use a 2.1 speaker (that is, add a speci...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04R5/04
CPCH04R5/04
Inventor 刘勰
Owner VIVO MOBILE COMM CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com