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Embedded development and construction method and application of Bluetooth single-chip dual-channel eq adjustable

A single-chip, dual-channel technology, applied in the algorithm field of CSR Bluetooth chip KalimbaDSP, can solve the problem that the audio parameters of the left and right ears cannot be adjusted separately

Active Publication Date: 2021-03-26
刘旻
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, except for the Main Volume and Crossover modules, all modules process audio signals without distinguishing between left and right channels, so the current Bluetooth headset devices cannot individually adjust the audio parameters of the left and right ears.

Method used

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  • Embedded development and construction method and application of Bluetooth single-chip dual-channel eq adjustable
  • Embedded development and construction method and application of Bluetooth single-chip dual-channel eq adjustable
  • Embedded development and construction method and application of Bluetooth single-chip dual-channel eq adjustable

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Embodiment Construction

[0100] The solution of this application will be based on the UFE (universal front end) acoustic tuning tool that comes with the ADK of the CSR867x chip. Its music playback tuning interface is as follows: figure 1 .

[0101] Such as figure 2 Shown: All Compander (compander), User EQ (user equalizer), BassEnhancement (bass enhancement), Speaker EQ (speaker equalizer), Stereo Enhancement (stereo enhancement), Crossover (crossover), The Main Volume (main volume control) module is a single channel, and the left and right channels cannot be processed separately, so to realize its functions, it is necessary to build a GUI tuning tool.

[0102] 2. Main functions

[0103] 10 Speaker EQs for left and right channels (support any Bluetooth audio decoding format, any audio source)

[0104] Can read and write each parameter of each Speaker EQ (Filter type, Gain, frequency, Q value) at the VM layer

[0105] Each parameter of each Speaker EQ can be adjusted in real time through the GUI ...

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Abstract

The invention relates to an algorithm of a Bluetooth chip DSP (Digital Signal Processor), in particular to a Bluetooth single-chip dual-channel EQ adjustable embedded development and construction method and application, and particularly relates to an algorithm of a CSR (Cyclic Sequence Repeat) Bluetooth chip Kalimba DSP. The invention provides a scheme for supporting 10 Speaker EQs of a left soundchannel and 10 Speaker EQs of a right sound channel, and provides a tone tuning tool based on a Matlab GUI to be matched with actual production application. The invention relates to an embedded development system with adjustable left and right channels EQ, which is characterized in that each of the left and right channels of the system comprises 10 Speaker EQ, and each parameter of each Speaker EQ is read and written in a VM layer; each parameter of each Speaker EQ is adjusted in real time through a GUI created by MATLAB. 10 frequency bands (20-16kHz) can be carried out on hearing of left andright ears of a user; the vicious circle of nervous hearing loss caused by excessive volume listening due to unbalanced hearing of the left ear and the right ear of an individual is effectively avoided, and meanwhile, teenagers serve as main earphone type consumer groups of the earphones and play a positive social role in prevention of hearing loss of the teenagers.

Description

technical field [0001] This application relates to the algorithm of bluetooth chip DSP, an embedded development system with adjustable left and right channel EQ based on bluetooth single chip and its construction method and application, specifically related to the algorithm of CSR bluetooth chip Kalimba DSP. Background technique [0002] According to the report of the World Health Organization, about 15% of adults in the world have different degrees of hearing loss, (https: / / www.who.int / pbd / deafness / news / Millionslivewithhearingloss.pdf), on February 12, 2019 According to a report on the 12th, "Nearly 50% of people aged 12-35 (or 1.1 billion young people) are at risk of hearing loss due to prolonged and excessive exposure to loud sounds, including listening to music through personal audio devices", ( https: / / www.who.int / en / news-room / detail / 12-02-2019-new-who-itu-standard-aims-to-prevent-hearing-loss-among-1.1-billion-young- people) hearing protection is a top priority. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/00
CPCH04R3/00H04R2430/00
Inventor 刘旻
Owner 刘旻
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