Patent ID: 7065217

Claim:
An audio system that provides a plurality of speaker output signals to a plurality of loud speakers, the audio system comprising: an FM receiver that receives an input signal and demodulates the input signal to provide an audio output signal, and also provides a control signal indicative of the reception quality of the audio output signal; and a multichannel sound reproduction system that receives the audio output signal and the control signal, and provides the plurality of speaker output signals where the sound reproduction associated with the plurality of speaker output signals is set by the multichannel sound reproduction system as a function of the control signal, such that stereo reproduction is provided when the control signal value lies between a first threshold value and a second threshold value, pseudo-stereo reproduction is provided when the control signal value lies between the second threshold value and a third threshold value, and mono reproduction is provided when the control signal value lies below the third threshold value—the first threshold value being greater than the second threshold value, and the second threshold value being greater than the third threshold value.