Sound playback method

A sound playback method implemented in a system comprising an audio/video decoder connected to a television set and a plurality of pieces of audio playback equipment (4) that have been grouped together in the same audio group, the method comprising the steps of:

• defining a first subgroup comprising the audio/video decoder and at least one first piece of audio playback equipment, and a second subgroup comprising at least one second piece of audio playback equipment;
• as a function of at least one predefined parameter comprising a current operating state of the audio/video decoder, dynamically determining a current mode that is occupied by the system, from among a plurality of predefined modes comprising a first mode and a second mode;
• when the system is in the first mode, in which the audio/video decoder is not delivering an audio-video stream, causing the first subgroup to play back a first audio signal comprising a common audio content, and causing the second subgroup to play back a second audio signal comprising the common audio content;
• when the system is in the second mode, in which the audio/video decoder is delivering an audio-video stream, causing the first subgroup to play back a third audio signal comprising an audio stream forming part of the audio-video stream, and causing the second subgroup to play back a fourth audio signal.