Accelerated playing method and device and transmission and storage method and device of media file

A media file and accelerated playback technology, applied in the direction of carrier indicating device, information storage, recording information storage, etc., can solve the problems of unable to realize real-time content presentation, unable to guarantee the integrity of information, unable to obtain key audio content, etc.

Active Publication Date: 2017-09-22
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the inventors of the present invention found that, for the accelerated playback of audio, after exceeding a certain multiple of acceleration, it is very likely that the user cannot recognize the semantic content of the accelerated audio, and cannot obtain the key content of the audio. completeness of information
Moreover, the reverse order playback of audio usually only provides playback progress information according to the time axis, and cannot achieve real-time content presentation similar to video playback. In this way, it is inconvenient for users to accurately browse and locate according to the semantic content in the audio.

Method used

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  • Accelerated playing method and device and transmission and storage method and device of media file
  • Accelerated playing method and device and transmission and storage method and device of media file

Examples

Experimental program
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Effect test

Embodiment 1

[0188] Embodiment 1 of the present invention provides a method for accelerated playback of media files, such as Figure 4 As shown, its specific process may include the following steps:

[0189] S401: Obtain key content in the text content of the media file to be played accelerated.

[0190] In Embodiment 1 of the present invention, before the terminal device processes the media file to be accelerated playing offline, or before receiving the accelerated playback operation instruction enabled by the user and processing the media file to be accelerated playing online, the acceleration speed and acceleration of the accelerated playback can be determined. direction. In this way, according to the determined acceleration speed and acceleration direction, the media to be accelerated can be determined from the currently played media file.

[0191] In practical applications, the acceleration speed and direction of the accelerated playback may be indicated by the accelerated playback ...

Embodiment 2

[0227] The scheme of obtaining the key content in the text content of the media file to be accelerated playing mentioned in the first embodiment will be introduced in detail in the second embodiment.

[0228] 1. Obtain key content according to part of speech

[0229] In the second embodiment of the present invention, when the key content is obtained according to the part of speech, the division granularity of the content unit may be words.

[0230] According to the part of speech of the content unit in the text content corresponding to the media file to be accelerated, obtaining the key content in the text content of the media file to be accelerated may include at least one of the following methods:

[0231] In the text content composed of at least two content units, it is determined that the content unit corresponding to the auxiliary part of speech is not the key content;

[0232] In the text content composed of at least two content units, it is determined that the content ...

Embodiment 3

[0445] In the method for accelerated playback of a media file provided in Embodiment 1, after determining the media file corresponding to the key content in the text content of the media file to be accelerated, it can be considered based on the environmental noise intensity, media file quality, speech rate, and volume. , acceleration speed, positioning operation instructions and other factors to adjust the playback strategy of the media file corresponding to the key content.

[0446] In the third embodiment of the present invention, how to adjust the determined playing strategy of the media file according to the above factors will be described in detail.

[0447] 1. Enhanced quality of media files

[0448] When the audio quality of the media file is poor, accelerated playback of the media file will cause the human ear to fail to recognize its content, and voice enhancement can be performed on the part with poor audio quality.

[0449] Since noise and audio signals are short-t...

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PUM

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Abstract

The invention provides an accelerated playing method and device and a transmission and storage method and device of a media file. The accelerated playing method of the media file includes: acquiring key contents in text contents of the media file to be played in an accelerated manner; determining a media file corresponding to the key contents; and playing the determined media file. By applying the accelerated playing method of the media file, the key contents in the media file are retained while accelerated playing of media files of audio, video and the like is realized, and the integrity degree of media information is guaranteed; and transmission and storage of the media file can also be provided, and transmission requirements on network environment and storage space are reduced.

Description

technical field [0001] The present invention relates to the technical field of media playing and transmission, in particular, the present invention relates to a method and device for accelerated playing, transmission and storage of media files. Background technique [0002] Before the emergence of digital products, the control buttons of analog audio playback tools (such as cassette players) and analog video playback tools (such as video recorders) usually include three basic keys, namely play, fast forward and fast rewind buttons, wherein fast forward and fast The back button is often implemented by playing more content (frame images and audio) per unit time in the forward and reverse directions. [0003] With the development of digital technology, new fast-forward and fast-rewind methods appear in digital audio playback tools and digital video playback tools, that is, directly skipping a fixed time period to enter the content after or before. For example, mp3 player, VCD ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/745G11B27/34G06F16/7834G06F16/345G06F16/35G10L25/57G11B27/005G06F40/30G06V20/46G10L15/063G11B27/19
Inventor 包飞王宪亮朱璇
Owner BEIJING SAMSUNG TELECOM R&D CENT
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