Effects transitions in a music and audio playback system

摘要

A music and audio playback system enables an operator to control an audio effect for transitioning an audio output signal from a first audio source to a second audio source by using a single cross-fader control. The transition audio effect combines the two incoming sources using a function that depends on the current position of the cross-fader control. Effects include cross-fading the frequency range, band-ducking, vocoder effects, and beat-cutting effects. The technique is especially advantageous in DJ performance systems in which audio effect-based transitions can add excitement and variety to a performance. Dedicated transition effect preset buttons located near the cross fader facilitate rapid selection by the DJ of the cross-fader controlled transition audio effect.

主权项

1. A music and audio playback system comprising:
a first input for receiving audio data from a first audio source; a second input for receiving audio data from a second audio source; a processor for processing audio data; an audio output for outputting audio data; and a user-operable cross-fader control; wherein the processor is configured to apply in real time a user-selected audio effect for combining audio data received from the first audio source via the first audio input and audio data received from the second audio source via the second audio input to generate a processed audio signal, wherein the processed audio signal in a first frequency range comprises the audio data received from the first audio source that lies within the first frequency range, and the processed audio signal in a second frequency range comprises the audio data received from the second audio source that lies within the second frequency range, corresponding to the frequencies not included in the first frequency range, a current state of the cross fader control controlling one or more frequency cut-offs between frequencies derived from the first audio source and frequencies derived from the second audio source, wherein a parameter of the audio effect is controlled by a current state of the cross-fader control, and wherein the music and audio playback system outputs a signal comprising the processed audio signal, the audio data from the first audio source, and the audio data from the second audio source via the audio output.