(51, 52, 53) for each of the bands an echo extinguishing process in the case of each primary partial signal of the audio signal by reference to a corresponding primary partial signal of the reference signal; anda band combiner (60), which the primary partial signals of the audio signal, ...
THE echo canceller comprises an adaptive FILTER RECEIVING RATIOS OF A TRANSFORMED DIRECT DISCREET IN THE FIELD FREQUENCY calculated on successive blocks of an input signal, AND ATTACKING THROUGH circuit inverse transform, entry subtracted from an adder TRAINING a signal OUT GOING TO RED, AND A match...
An adder 7 adds each tap-coefficient-processed tap output and generates the pseudo echo signal. The pseudo echo signal is given to a subtracter 8 and the cancellation of the echo signal contained in an input sound signal is executed. 展开 ...
The output vector Y′=H′{circle around (X)}X′ of the monophonic filter 46 is added to the output vectors Y1=H1{circle around (X)}X1 and Y2=H2{circle around (X)}X2 of the stereo filters 13 by the adder 14. The resulting vector Y=Y1+Y2+Y′ is then processed as in the pre...
An adder 14 subtracts the pseudo echo from a received audio signal and cancels the received echo.;COPYRIGHT: (C)1996,JPOSHINOHARA TAKASHIYOSHIHAMA YOSHIKAZU
An artificial reverberation apparatus for audio frequency signals, comprises a first delay device preceded by an adder. A feedback circuit couples the output of the delay device to an input of the adder to give a loop signal gain of less than unity. The adder is preceded by a second delay...
In one embodiment, the distortion manager includes a coherence ascertainer coupled to an adaptive distortion adder. The coherence ascertaine... SM Kuo,Z Pan 被引量: 7发表: 1992年 An acoustic echo canceler with noise and echo reduction An acoustic echo canceler, needed for hands-free ...
The digital audio input is applied to a gp. (11 etc.) of delay circuits followed by individual coefft. multipliers (21) whose outputs are added (31). The signals from all circuits in the cascade are applied through further coefft. multipliers (40) to an adder (41). Signal degradation ...
An artificial reverberation apparatus for audio frequency signals, comprises a first delay device preceded by an adder. A feedback circuit couples the output of the delay device to an input of the adder to give a loop signal gain of less than unity. The adder is preceded by a second delay...
An artificial reverberation apparatus for audio frequency signals, comprises a first delay device preceded by an adder. A feedback circuit couples the output of the delay device to an input of the adder to give a loop signal gain of less than unity. The adder is preceded by a second delay...