| 摘要 |
The invention relates to a method of diagnosing the operating state, in situ, of a sound system comprising at least one loudspeaker suitable for being connected to an audio player and arranged in an at least partially closed space, characterized in that it comprises the following steps: broadcasting (32) of acoustic waves representative of a test signal (St(t)) by each loudspeaker into said space; acquisition (34) of a digital response signal (Sr(t)) representative of the acoustic waves broadcast; determination (52, 53, 54) of energy distribution coefficients representative of the energy distribution of said digital response signal (Sr(t)) per frequency band; and comparison (58, 60) of said energy distribution coefficients with predetermined threshold ranges so as to diagnose the operating state of each loudspeaker. The invention also relates to a diagnostic device suitable for carrying out the above method.
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