Patent ID: 7400734

Claim:
An apparatus for emulating audio effects, receiving an audio source signal so as to simulate and output audio effects of the audio source signal under different environments, comprising: an echo device, receiving the audio source signal and applying thereof so as to generate an echo signal and a feedback signal; a reverberation device, receiving the audio source signal so as to output a reverberation signal according to the feedback signal; an audio source device, receiving the audio source signal and applying thereof so as to output a direct audio source signal; and a first signal synthesizer, receiving and synthesizing the echo signal, the reverberation signal and the direct audio source signal so as to output a first synthesized signal, which is an audio effect emulation signal, wherein the echo device further comprises: a first delay unit, receiving the audio source signal and applying thereof so as to output a first delay signal; a first gain unit, receiving the first delay signal and applying thereof so as to output a first gain signal; a second delay unit, receiving the audio source signal and applying thereof so as to output a second delay signal; a second gain unit, receiving the second delay signal and applying thereof so as to output a second gain signal; a second signal synthesizer, receiving and synthesizing the first gain signal, and the second gain signal so as to output a second synthesized signal, which is the feedback signal; and a third gain synthesizer, receiving the second synthesized signal and applying thereof so as to output a third gain signal, which is the echo signal.