Patent ID: 8774860

Claim:
A method performed by an apparatus, comprising: scanning a frequency range to detect available radio frequencies on which no broadcast transmissions or interfering signals are currently received; storing detected available frequencies; selecting one of said stored frequencies; receiving audio data from an audio player; analyzing said audio data received from said audio player device to detect an audio volume; modulating said received audio data with frequency modulation; transmitting frequency modulated audio data on said selected frequency; interrupting the transmitting of said frequency modulated audio data, wherein said interrupting is performed if said audio volume falls below a pre-determined threshold; detecting if the frequency presently used for said transmitting is still available; and alternatively if the frequency presently used is still available, resuming said transmitting of said audio data on the frequency presently used; or if the frequency presently used is not available anymore selecting the at least one alternative frequency; switching to said selected alternative frequency; and resuming said transmitting of said audio data using said selected alternative frequency.