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.
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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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