METHOD AND ELECTRONIC UNIT FOR ADJUSTING PLAYBACK SPEED OF MEDIA FILES

1 . A method for adjusting speed of playback of at least a segment of a media file, comprising:

generating a text file by speech-to-text conversion of the media file;

determining a speed measure for the media file, including

determining a plurality of speech elements in the text file;

associating a time stamp for each speech element of the generated text file;

determining a degree of comprehensibility of the media file;

adjusting a current speed of playback of the media file based on the determined speed measure and the determined degree of comprehensibility.

2 . The method of claim 1 , wherein the step of adjusting the current speed of playback is based on a relation between the determined speed measure and a predetermined speed measure.

3 . The method of claim 1 , wherein the step of adjusting the current speed of playback includes changing to the speed of playback towards a playback speed associated with a predetermined speed measure.

4 . The method of claim 1 , wherein the step of determining a degree of comprehensibility includes computing a readability score from the text file based on a predetermined rule.

5 . The method of claim 4 , wherein the readability score is computed based on at least one of number of words per sentence, number of characters per word, number of long words, and word frequency.

6 . The method of claim 4 , wherein the readability score is computed based on a first measure comprising a calculated number of words per segment of words.

7 . The method of claim 4 , wherein the readability score is computed based on a combination of

a first measure comprising a calculated number of words per segment of words; and

a second measure associated with the number of characters per word.

8 . The method of claim 1 , wherein the degree of comprehensibility is determined based on a characteristic parameter of the media file associated with at least one of sound quality, language, dialect, topic and speaker.

9 . The method of claim 4 , wherein the step of adjusting the current speed of playback includes changing the speed of playback towards a playback speed associated with a predetermined speed measure, to a degree dependent on said readability score.

10 . The method of claim 1 , wherein the step of adjusting the current speed of playback includes changing the speed of playback to a pre-set playback speed associated with the determined degree of comprehensibility.

11 . The method of claim 1 , comprising

determining an intended playback user,

wherein the step of adjusting a current speed of playback is carried out in accordance with a user-dependent rule.

12 . The method of claim 1 , wherein the step of determining a degree of comprehensibility includes

determining a characteristic parameter of the media file associated with at least one of sound quality, language, dialect, topic and speaker of the media file;

determining an intended playback user;

determining a predetermined speed measure associated with the intended user;

wherein the speed of playback is adjusted to accommodate to the predetermined speed measure.

13 . The method of claim 1 , comprising

Identifying at least a first section and a second section of the media file;

separately computing the readability score, determining the degree of comprehensibility, and adjusting the current speed of playback for said first segment and said second segment, respectively.

14 . The method according to claim 1 , wherein the elements of speech is any of syllables, words, characters or part of words.

15 . The method of claim 1 , comprising

identifying parts of the generated text file where the degree of comprehensibility differs; and

adjusting a current speed of playback of the identified parts of the media file to a pre-set speed of playback based on the determined degree of comprehensibility.

16 . The method of claim 1 , wherein the adjusting of current speed of playback is performed continuously and/or automatically.

17 . An electronic unit for adjusting speed of playback of a media file, comprising a processing circuitry, and a memory holding computer readable program code, which, when executed by the processing circuitry, causes the electronic device to:

generate a text file by speech-to-text conversion of the media file;

determine a speed measure for the media file, including

determining a plurality of speech elements in the text file;

associating a time stamp for each speech element of the generated text file;

determine a degree of comprehensibility of the media file;

adjust a current speed of playback of the media file based on the determined speed measure and the determined degree of comprehensibility.

18 . The electronic device of claim 17 , wherein the execution of the computer readable program code causes the electronic device to

compute a readability score from the text file based on a predetermined rule.

19 . The electronic device of claim 17 , wherein the execution of the computer readable program code causes the electronic device to

adjust a current speed of playback by changing the speed of playback towards a playback speed associated with a predetermined speed measure, to a degree dependent on said readability score.

20 . The electronic device of claim 17 , wherein the execution of the computer readable program code causes the electronic device to

determine an intended playback user, wherein the step of adjusting a current speed of playback is carried out in accordance with a user-dependent rule.