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1. WO2021005048 - METHOD AND SYTEM FOR GENERATING A PERSONALIZED PLAYLIST OF SOUNDS

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

CLAIMS

A method for generating for a subject a personalized playlist of sounds (P), notably songs, using the analysis of the subject’s el ectroencephal ographi c signal, said method comprising the following steps:

receiving (M10) at least one segment of electroencephalographic signal (S) acquired from at least one electrode while the subject is listening to at least one proposed sound;

extracting (M20) at least one EEG index (Id) from the el ectroencephal ographi c signal segment (S) so as to characterize brain patterns correlated to the emotions evoked by the music and the level of appreciation of the sound;

evaluating (M30) the valence of sounds listening (V) on the basis of the EEG index (Id);

receiving (M40) a score of appreciation (Sc) on the sound from the subject; including (M50) the sound in the personalized playlist (P) of the subject whenever the valence (V) matches a predefined valence and/or the score of appreciation is higher than a predefined threshold.

The method according to claim 1, wherein the EEG index (Id) is chosen among the following: Approach-Withdrawal index, the Frontal-Midline theta index, the prefrontal alpha power and/or the the right parietal alpha power.

The method according to claim 1, wherein the proposed sound is selected from a database of sounds and it is unknown to the subject.

The method according to claim 3, wherein the proposed sound is selected from the database of sound using a sound selection algorithm, said sound selection algorithm being configured to identify in the sounds comprised in the personalized playlist, on the basis of the score of appreciation, at least one specific pattern and select from the database of sound at least one sound with a similar specific pattern.

5. The method according to of claim 1, wherein each sound included in the personalized playlist (P) is stored in a personal database with the score of appreciation (Sc) and the EEG index (Id).

6. A system comprising a data processing system comprising means for carrying out the steps of the method according to any one of claims 1 to 5.

7. The system of claim 6, further comprising an acquisition module for acquiring at least a segment of electroencephalographic signals from a subject and an audio-headset for producing the sound.

8. A computer program product for generating a personalized playlist of sounds using el ectroencephalographi c signal analysis, the computer program product comprising instructions which, when the program is executed by a computer, cause the computer to carry out the steps of the method according to any one of claims 1 to 5.

9. A computer-readable storage medium comprising instructions which, when the program is executed by a computer, cause the computer to carry out the steps of the method according to any one of claims 1 to 5.

10. A method for selecting from a personalized playlist of sounds of a subject a sub-group of sounds according to the emotional state of the subject:

- receiving an information concerning the subject’s emotional state defined by the subject;

- selecting at least one sound from the personalized playlist and play it to the subject;

receiving at least one segment of el ectroencephal ographi c signal acquired from at least one electrode while the subject is listening to the selected sound;

- calculating the value of the Approach-Withdrawal index;

- whenever the Approach-Withdrawal index is greater that a predefined threshold, adding the selected sound to a sub-group of sounds associated to the type of emotional state defined by the subject.

11. A system comprising a data processing system comprising means for carrying out the steps of the method according to claim 10.

12. The system of claim 11, further comprising an acquisition module for acquiring at least a segment of electroencephalographic signals from a subject and an audio-headset for producing the sound.

13. A computer program product for selecting from a personalized playlist of sounds of a subject a sub-group of sounds, the computer program product comprising instructions which, when the program is executed by a computer, cause the computer to carry out the steps of the method according to claim 10.

14. A computer-readable storage medium comprising instructions which, when the program is executed by a computer, cause the computer to carry out the steps of the method according to claim 10.