Device and method for automatically selecting audio-frequency play mode

A playback mode and automatic selection technology, applied in the direction of adaptive control, four-channel/stereo recording circuit, static memory, etc., can solve the problems that cannot meet the requirements, and achieve the effect of satisfying the sound quality effect

Inactive Publication Date: 2007-04-04
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared to the users who are more and more pursuing the stereo high-fidelity auditory effect of music, this electronic book device that uses voice playback to play background music can no longer meet their requirements.

Method used

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  • Device and method for automatically selecting audio-frequency play mode
  • Device and method for automatically selecting audio-frequency play mode

Examples

Experimental program
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Embodiment Construction

[0011] As shown in FIG. 1 , it is a hardware architecture diagram of an audio playback mode automatic selection device in an embodiment. The device can be connected to an electronic information processing device (for example: text information reading device, personal digital agent PDA), receives the audio data stream from the electronic device, processes the audio data, and passes the processed audio data through the audio source output hole Output to a sound output device (not shown in the figure), for example: earphone, speaker. Wherein, the audio data stream includes a music data stream and a voice data stream, which are composed of frames. The frame includes a frame header and frame data. The frame header records the basic information of the frame, and the frame data records the main body audio data of the frame. The basic information of the frame includes data such as playback mode identification and bit rate. In this embodiment, when the playback mode is identified as t...

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Abstract

This invention is an automatically choose device of audio playing mode and its working method. The device receives audio stream and output the processed data as data frame. The data frame includes frame head information which has an identification of playing mode. The device includes an audio detection unit, a decoder, a D / A converter, a playing mode choosing unit and an amplifier. The audio detecting unit acquires and identifies the playing mode in the frame head. In case the playing mode is the first value, a control signal of stereo playing mode is generated. In case the playing model is the second value, a control signal of single track playing mode is generated. The playing mode choosing unit outputs the corresponding analog signals according to the control signal.

Description

【Technical field】 [0001] The present invention relates to an audio playing device and method, in particular to an electronic information processing device and method capable of automatically selecting an audio playing mode. 【Background technique】 [0002] Reading is one of the best ways for people to absorb new knowledge. Due to the progress of science and technology, people can only read through print media (such as newspapers and magazines), and the way of reading on computers or electronic devices has been added. Coupled with today's fast network and the infinite database contained in the Internet, using electronic devices connected to the network to read, for users, they have many resources virtually and increase the convenience of reading. [0003] Also because of this, the e-book made from the original book content has also appeared, so that the user can use the electronic device or the e-book device to read it conveniently. However, the current e-books basically fol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C7/00G11B20/00G05B13/00
CPCG11B20/10527G11B20/00992G11B2020/10546
Inventor 王汉哲李晓光谢冠宏
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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