Decoder equipment generating an order for an audio profile that is to be applied

1. An installation comprising at least one decoder equipment and an audio playback equipment, the decoder equipment comprising:

a first output connecting to the audio playback equipment;

a second output suitable for connecting to video playback equipment;

a communication interface arranged in service to receive both an incoming audio/video stream and also incoming metadata;

first processor means arranged:

to process the incoming audio/video stream in order to supply an audio signal at least to the audio playback equipment and a video signal to the video playback equipment;

to extract from the incoming metadata information about the incoming audio/video stream and consequently to generate an order for the audio playback equipment, the order specifying an audio profile that is to be applied as a function of said information;

the audio playback equipment including a communication interface arranged in service to receive from decoder equipment both the audio signal and also the order for an audio profile that is to be applied, the audio playback equipment including second processor means for adapting the audio signal as a function of said order,

the decoder equipment being configured to supply the audio playback equipment both with the raw audio signal and also with an order to adapt said raw signal, with the adaptation then taking place within the audio playback equipment,

wherein the information comprises a time,

wherein the decoder equipment is configured to determinate a time scheduled for a change of audio profile that is to be applied,

wherein the decoder combines the time scheduled for a change of audio profile at least with an end time of the program being viewed to as to

always make coincide the change of audio profile with a change of program or

make coincide the change of audio profile with a change of program if the time scheduled for a change of audio profile that is to be applied is closed to a change of program.

2. Installation according to claim 1 , wherein the first processor means also extract, from the incoming metadata, additional information comprising an end time of a program that is contained in the incoming audio/video stream and that is going to be played back in service by the audio playback equipment and by the video playback equipment after the program currently being played back by the audio playback equipment and by the video playback equipment.

3. Installation according to claim 1 , wherein the first processor means also extract from the incoming metadata other additional information comprising a content type descriptor of the incoming audio/video stream.

4. Installation according to claim 1 , wherein the first processor means include at least one table associating each descriptor with parameters defining an audio profile, at least in part.

5. Installation according to claim 1 , wherein the first processor means include at least one table associating each descriptor with an audio profile identifier.

6. Installation according to claim 1 , wherein the audio profile is defined at least by a parameter for equalizing the audio signal.

7. Installation according to claim 1 , wherein the audio profile is defined at least by a compressor or limiter effect.

8. Installation according to claim 1 , wherein the audio profile is also a function of the time at which the audio/video stream is played back.

9. Installation according to claim 1 , configured to calculate a transition period between two audio profiles.

10. Installation according to claim 1 , configured to order the audio playback equipment to calculate a transition period between two audio profiles.

11. Installation according to claim 10 , wherein the transition between two profiles is caused by a change of time at which the audio/video stream is to be played back and/or a change of program contained in the incoming audio/video stream that is played back in service by the audio playback equipment and by the video playback equipment.

12. Installation according to claim 1 , configured to combine two audio profiles.

13. Installation according to claim 1 , configured to order the audio playback equipment to combine two audio profiles.

14. Installation according to claim 1 , wherein the second processor means include at least one table associating audio profile identifiers with parameters defining an audio profile, at least in part.

15. Installation according to claim 1 , configured to change audio profile at a given time specified by the decoder equipment.

16. Installation according to claim 15 , wherein for at least one audio parameter, the audio playback equipment duplicates the audio signal it receives in service from the decoder equipment, applies respective audio parameters to each copy, and combines the two copies in order to obtain a combined audio signal.

17. Installation according to claim 1 , wherein for at least one audio parameter, in service, the audio playback equipment applies a combined audio parameter directly to the audio signal received from the decoder equipment.

18. A method of generating an order for an audio profile that is to be applied by audio playback equipment, the method being performed by the decoder equipment according to claim 1 .

19. A method of applying an audio profile, which method is performed by the audio playback equipment according to claim 1 .

20. A non-transitory computer readable storage medium storing a computer program including instructions for causing the audio playback equipment according to claim 1 , to execute steps of a method of generating an order for an audio profile that is to be applied by audio playback equipment,

wherein the information comprises an end time of a first program contained in the incoming audio/video stream and played back in service by the audio playback equipment and by the video playback equipment.