Mixed play system for multiple audio files and control method for mixed play system

A technology of audio files and control methods, which is applied to recording carrier parts, instruments, data recording, etc., and can solve the problems of wasting file space and increasing the workload of production staff

Inactive Publication Date: 2012-03-14
黄静
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that only one audio file can be played during one playback, and external intervention must be used to temporarily input commands to realize functions such as pause, fast forward, fast rewind, and end
This inflexible way of not being able to reuse audio files not only wastes file space, but also greatly increases the workload of production staff

Method used

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  • Mixed play system for multiple audio files and control method for mixed play system
  • Mixed play system for multiple audio files and control method for mixed play system

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Embodiment Construction

[0046] The present invention will be further described below in conjunction with the accompanying drawings of the description.

[0047] A mixed playback system of multiple audio files, which realizes calling and playing control of multiple audio files by adding specific timing files. It creatively formulates a protocol, and the parser of the system software reads and analyzes the corresponding timing files according to this protocol, so as to realize the playback control of multiple audio files. The timing file is composed of two parts. The first part is the basic data area, which mainly includes copyright information, the total number of command lines, the total number of audio files, the name of the audio file to be played and the number of characters in the file name. The data in the basic data area can help the system quickly find the data storage locations of all the audio files to be used in the NAND Flash memory during the process of loading the sequence files, and prep...

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Abstract

The invention discloses a mixed play system for multiple audio files and a control method for the mixed play system. The mixed play system comprises an audio processor, an SDRAM (Synchronous Dynamic Random Access Memory) memory, an NAND (Not And) Flash memory, an analyzer and a programming system, wherein the programming system is used for receiving an external instruction to obtain a time sequence file name; the system program is used for finding a corresponding time sequence file in the NAND Flash memory and finding positions of all audio file data required to be played in the NAND Flash memory according to basic data information of the time sequence file; the position of the audio data in a time slice of the audio file in each command line by the system program; and finally, the data are decoded and played by the audio processor, thereby realizing that certain audio file is played in certain tile slice, starting playing any audio file from any time point and ending at any time point and managing the whole play process through a specified time sequence file.

Description

technical field [0001] The invention relates to audio playing technology, especially the playing control technology of multiple audio files. Background technique [0002] Ordinary audio playback is generally played from the initial period of a certain audio to the end. During this period, human intervention can be used to input instructions to achieve playback effects such as pause, fast forward, fast rewind, and end. Its disadvantage is that only one audio file can be played during one playback, and external intervention must be used to temporarily input commands to realize functions such as pause, fast forward, fast rewind, and end. Therefore, in practical applications, because only one audio file can be played at a time, when a lot of content needs to be played, multiple audio files must be produced. This inflexible way of not being able to reuse audio files not only wastes file space, but also greatly increases the workload of production staff. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/10G11B27/00
Inventor 黄静
Owner 黄静
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