Patent ID: 8917875

Claim:
A method for operating three loudspeakers based on a provided stereo audio signal with one audio signal each for a right channel and a left channel, the method comprising: extracting a third audio signal from the stereo audio signal using an audio separation circuit; producing a drive signal of the left channel from the audio signal for the left channel using a first audio circuit; producing a drive signal of the right channel from the audio signal for the right channel using a second audio circuit; producing a first drive signal of the third audio signal from the third audio signal using a third audio circuit; producing a second drive signal of the third audio signal produced from the third audio signal using a fourth audio circuit; driving a first loudspeaker of the three loudspeakers at a first loudspeaker connection of the first loudspeaker with the drive signal of the left channel and the first drive signal of the third audio signal; driving the first loudspeaker of the three loudspeakers at a second loudspeaker connection of the first loudspeaker with the first drive signal of the third audio signal; driving a second loudspeaker of the three loudspeakers at a first loudspeaker connection of the second loudspeaker with the first drive signal of the third audio signal; driving the second loudspeaker of the three loudspeakers at a second loudspeaker connection of the second loudspeaker with the second drive signal of the third audio signal; driving a third loudspeaker of the three loudspeakers at a first loudspeaker connection of the third loudspeaker with the drive signal of the right channel and the second drive signal of the third audio signal; and driving the third loudspeaker of the three loudspeakers at a second loudspeaker connection of the third loudspeaker with the second drive signal of the third audio signal.