Patent ID: 9601123
Date: 2017-03-21
CPC Classifications: G10L,H04H

Claim:
1. An apparatus for blending of a Digital Audio Broadcast transmission first audio signal and a Frequency Modulated transmission second audio signal comprising: a first receiver receiving a Digital Audio Broadcast transmission; a first demodulator connected to said first receiver producing a first left audio signal and a first right audio signal from said received Digital Audio Broadcast transmission; a second receiver receiving a Frequency Modulated transmission; a second demodulator connected to said second receiver producing a second left audio signal and a second right audio signal from said received Frequency Modulated transmission; a quality of service unit connected to said first receiver, said first demodulator, said second receiver and said second demodulator, said quality of service unit producing a first quality of service indication for said received Digital Audio Broadcast transmission and a second quality of service indication for said received Frequency Modulated transmission; and a blending unit receiving said first left audio signal and said first right audio signal from said first demodulator, said second left audio signal and said second right audio signal from said second modulator and said first quality of service indication and said second quality of service indication from said quality of service unit, said blending unit operable to where: DAB_Left is said left channel of said first audio signal; DAB_Right is said right channel of said first audio signal; and α is selected whereby Ts*(1−α)/α˜0.1; where: FM_Left is said left channel of said second audio signal; and FM_Right is said right channel of said second audio signal;