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This applet demonstrates audio effects resulting from a Fast Convolution algorithm. It is designed for a first insight into the perceptual effects of convolving an inpulse response with an audio signal. The applet generates an impulse response by modulating the amplitude of a random signal. The graphical interface presents the curve of the amplitude modulation, which can be manipulated with three control points. Two control points are used for the initial behaviour of the amplitude modulation. The third control point is used for the exponential decay of the impulse response. A slider is available for controling the gain of the output signal. You can choose between two predefined audio files from our web-server ("audio1.wav" or "audio2.wav") or your own local .wav-file to be processed. To run the applet you will need at least a Java VM 1.4 or later. Please find the latest JRE (Java Runtime Environment) here. |