Abstract: A guitar multi-effects pedalboard is provided. The pedalboard has footswitches and a memory storing guitar-effect presets for processing an inputted guitar signal when the processing is triggered by pressing a footswitch. The pedalboard has one or more processors coupled to the memory and configured to process a first portion of an inputted guitar signal on a first audio-engine thread with a first guitar-effect preset when processing the first portion is triggered by pressing a footswitch. The one or more processors also process a second portion of the inputted guitar signal on a second audio-engine thread with a second guitar-effect preset while simultaneously processing the first portion of the inputted guitar signal on the first audio-engine thread with the first guitar-effect preset when processing the second portion is triggered by pressing a footswitch. The one or more processors simultaneously output the processed first portion and the processed second portion.

Abstract: A guitar multi-effects pedalboard is provided. The pedalboard has footswitches and a memory storing guitar-effect presets for processing an inputted guitar signal when the processing is triggered by pressing a footswitch. The pedalboard has one or more processors coupled to the memory and configured to process a first portion of an inputted guitar signal on a first audio-engine thread with a first guitar-effect preset when processing the first portion is triggered by pressing a footswitch. The one or more processors also process a second portion of the inputted guitar signal on a second audio-engine thread with a second guitar-effect preset while simultaneously processing the first portion of the inputted guitar signal on the first audio-engine thread with the first guitar-effect preset when processing the second portion is triggered by pressing a footswitch. The one or more processors simultaneously output the processed first portion and the processed second portion.

Abstract: 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.

Abstract: 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.